STMicroelectronics S.r.l.

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IPC Class
H01L 29/66 - Types of semiconductor device 180
H02M 1/00 - Details of apparatus for conversion 170
H01L 23/00 - Details of semiconductor or other solid state devices 168
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B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes 132
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1.

LEAD FRAME FOR A PACKAGE FOR A SEMICONDUCTOR DEVICE, SEMICONDUCTOR DEVICE AND PROCESS FOR MANUFACTURING A SEMICONDUCTOR DEVICE

      
Application Number 18943461
Status Pending
Filing Date 2024-11-11
First Publication Date 2025-02-27
Owner STMicroelectronics S.r.l. (Italy)
Inventor Fontana, Fulvio Vittorio

Abstract

A lead frame for an integrated electronic device includes a die pad made of a first metallic material. A top coating layer formed by a second metallic material is arranged on a top surface of the die pad. The second metallic material has an oxidation rate lower than the first metallic material. The top coating layer leaves exposed a number of corner portions of the top surface of the die pad. A subsequent heating operation, for example occurring in connection with wirebonding, causes an oxidized layer to form on the corner portions of the top surface of the die pad at a position in contact with the top coating layer.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

2.

SYSTEM AND METHOD FOR DETERMINING WHETHER AN ELECTRONIC DEVICE IS LOCATED ON A STATIONARY OR STABLE SURFACE

      
Application Number 18944811
Status Pending
Filing Date 2024-11-12
First Publication Date 2025-02-27
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Rivolta, Stefano Paolo
  • Rizzardini, Federico

Abstract

A method includes receiving electrostatic sensor data in a processor of an electronic device from an electrostatic sensor mounted behind a touchscreen of the electronic device and using the electrostatic sensor data to determine when the touchscreen is being used. Based on whether or not the touchscreen is being used, an on-table detection (OTD) algorithm is selected from a plurality of available OTD algorithms. In one or more examples, the OTD algorithm may also be selected based on the current device mode of the electronic device, which may be determined from a lid angle, a screen angle, and a keyboard angle of the electronic device. The selected OTD algorithm is run to determine whether or not the electronic device is located on a stationary or stable surface.

IPC Classes  ?

  • G06F 3/0346 - Pointing devices displaced or positioned by the userAccessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
  • G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

3.

SILICON CARBIDE DIODE WITH REDUCED VOLTAGE DROP, AND MANUFACTURING METHOD THEREOF

      
Application Number 18820135
Status Pending
Filing Date 2024-08-29
First Publication Date 2025-02-20
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Rascuná, Simone
  • Chibbaro, Claudio

Abstract

An electronic device includes a solid body of SiC having a surface and having a first conductivity type. A first implanted region and a second implanted region have a second conductivity type and extend into the solid body in a direction starting from the surface and delimit between them a surface portion of the solid body. A Schottky contact is on the surface and in direct contact with the surface portion. Ohmic contacts are on the surface and in direct contact with the first and second implanted regions. The solid body includes an epitaxial layer including the surface portion and a bulk portion. The surface portion houses a plurality of doped sub-regions which extend in succession one after another in the direction, are of the first conductivity type, and have a respective conductivity level higher than that of the bulk portion.

IPC Classes  ?

  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/872 - Schottky diodes

4.

WAVEFORM GENERATOR

      
Application Number 18940049
Status Pending
Filing Date 2024-11-07
First Publication Date 2025-02-20
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Passi, Stefano
  • Bardelli, Roberto Giorgio
  • Moroni, Anna

Abstract

A waveform generator includes a system control unit and signal channels controlled by the system control unit and configured to supply driving signals for driving a respective transducer of an array of transducers. Each signal channel includes a sequential access memory having rows, where each row contains an instruction word configured to generate a respective step of a waveform to be generated. A memory output of the sequential access memory is defined by an output row at a fixed location. The waveform to be generated is defined by a block of instruction words. Each signal channel also includes an internal control unit that is configured to sequentially move the content of the sequential access memory, based on the instruction word currently at the memory output, so that sequences of instruction words are provided at the output row.

IPC Classes  ?

  • G01S 7/524 - Transmitters
  • G06F 5/08 - Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising having a sequence of storage locations, the intermediate ones not being accessible for either enqueue or dequeue operations, e.g. using a shift register
  • G06F 5/10 - Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising having a sequence of storage locations each being individually accessible for both enqueue and dequeue operations, e.g. using random access memory
  • G06F 9/30 - Arrangements for executing machine instructions, e.g. instruction decode
  • G11C 19/00 - Digital stores in which the information is moved stepwise, e.g. shift registers

5.

METHOD AND DEVICE FOR ON-DEVICE LEARNING BASED ON MULTIPLE INSTANCES OF INFERENCE WORKLOADS

      
Application Number 18779807
Status Pending
Filing Date 2024-07-22
First Publication Date 2025-02-13
Owner
  • STMICROELECTRONICS INTERNATIONAL N.V. (Switzerland)
  • STMICROELECTRONICS S.R.L (Italy)
Inventor
  • Pau, Danilo Pietro
  • Singh, Surinder Pal
  • Aymone, Fabrizio Maria

Abstract

The present disclosure relates to a method of training a neural network using a circuit comprising a memory and a processing device, an exemplary method comprising: performing a first forward inference pass through the neural network based on input features to generate first activations, and generating an error based on a target value, and storing the error to the memory; and performing, for each layer of the neural network: a modulated forward inference pass; before, during or after the modulated forward inference pass, a second forward inference pass based on the input features to regenerate one or more first activations; and updating one or more weights in the neural network based on the modulated activations and the one or more regenerated first activations.

IPC Classes  ?

6.

METHOD FOR MANUFACTURING AN OHMIC CONTACT FOR A HEMT DEVICE

      
Application Number 18910960
Status Pending
Filing Date 2024-10-09
First Publication Date 2025-01-30
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Iucolano, Ferdinando
  • Tringali, Cristina

Abstract

A method for manufacturing an ohmic contact for a HEMT device, comprising the steps of: forming a photoresist layer, on a semiconductor body comprising a heterostructure; forming, in the photoresist layer, an opening, through which a surface region of the semiconductor body is exposed at said heterostructure; etching the surface region of the semiconductor body using the photoresist layer as etching mask to form a trench in the heterostructure; depositing one or more metal layers in said trench and on the photoresist layer; and carrying out a process of lift-off of the photoresist layer.

IPC Classes  ?

  • H01L 29/66 - Types of semiconductor device
  • H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT

7.

INPUT DETECTION WITH ELECTROSTATIC CHARGE SENSORS

      
Application Number 18911119
Status Pending
Filing Date 2024-10-09
First Publication Date 2025-01-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rivolta, Stefano Paolo
  • Bardone, Mauro
  • Labombarda, Andrea

Abstract

The present disclosure is directed to input detection for electronic devices using electrostatic charge sensors. The devices and methods disclosed herein utilize electrostatic charge sensors to detect various touch gestures, such as long and short touches, single/double/triple taps, and swipes; and perform in-car detection.

IPC Classes  ?

  • H04R 1/10 - EarpiecesAttachments therefor
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • H03K 17/96 - Touch switches

8.

DOUBLE-CHANNEL HEMT DEVICE AND MANUFACTURING METHOD THEREOF

      
Application Number 18912488
Status Pending
Filing Date 2024-10-10
First Publication Date 2025-01-30
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Iucolano, Ferdinando
  • Chini, Alessandro

Abstract

An HEMT device, comprising: a semiconductor body including a heterojunction structure; a dielectric layer on the semiconductor body; a gate electrode; a drain electrode, facing a first side of the gate electrode; and a source electrode, facing a second side opposite to the first side of the gate electrode; an auxiliary channel layer, which extends over the heterojunction structure between the gate electrode and the drain electrode, in electrical contact with the drain electrode and at a distance from the gate electrode, and forming an additional conductive path for charge carriers that flow between the source electrode and the drain electrode.

IPC Classes  ?

  • H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
  • H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 29/205 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds in different semiconductor regions
  • H01L 29/40 - Electrodes
  • H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
  • H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
  • H01L 29/66 - Types of semiconductor device

9.

LID ANGLE DETECTION

      
Application Number 18912496
Status Pending
Filing Date 2024-10-10
First Publication Date 2025-01-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rizzardini, Federico
  • Bracco, Lorenzo

Abstract

The present disclosure is directed to a device and method for lid angle detection that is accurate even if the device is activated in an upright position. While the device is in a sleep state, first and second sensor units measure acceleration and angular velocity, and calculate orientations of respective lid components based on the acceleration and angular velocity measurements. Upon the device exiting the sleep state, a processor estimates the lid angle using the calculated orientations, sets the estimated lid angle as an initial lid angle, and updates the initial lid angle using, for example, two accelerometers; two accelerometers and two gyroscopes; two accelerometers and two magnetometers; or two accelerometers, two gyroscopes, and two magnetometers.

IPC Classes  ?

  • G01P 15/18 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration in two or more dimensions
  • G01D 1/16 - Measuring arrangements giving results other than momentary value of variable, of general application giving a value which is a function of two or more values, e.g. product or ratio
  • G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

10.

DYNAMIC GRAVITY VECTOR ESTIMATION FOR MEMORY CONSTRAINED DEVICES

      
Application Number 18916262
Status Pending
Filing Date 2024-10-15
First Publication Date 2025-01-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rizzardini, Federico
  • Bracco, Lorenzo

Abstract

A device includes a memory and processing circuitry coupled to the memory. The processing circuitry, in operation: estimates an angular rate of change and determines a rotational versor based on the rotational data; and estimates a gravity vector based on the angular rate of change and the rotational versor. The processing circuitry generates a dynamic gravity vector based on the estimated gravity vector, a correction factor and an estimated error in estimated gravity vector. The processing circuitry estimates a linear acceleration and determines an acceleration versor based on the acceleration data, and determines the correction factor based on the linear acceleration. The processing circuitry estimates the error in the estimated gravity vector based on the acceleration versor.

IPC Classes  ?

  • G06F 3/0346 - Pointing devices displaced or positioned by the userAccessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

11.

SILICON CARBIDE POWER DEVICE WITH IMPROVED ROBUSTNESS AND CORRESPONDING MANUFACTURING PROCESS

      
Application Number 18917464
Status Pending
Filing Date 2024-10-16
First Publication Date 2025-01-30
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Rascuna', Simone
  • Chibbaro, Claudio
  • Guarnera, Alfio
  • Saggio, Mario Giuseppe
  • Lizio, Francesco

Abstract

An electronic power device includes a substrate of silicon carbide (SiC) having a front surface and a rear surface which lie in a horizontal plane and are opposite to one another along a vertical axis. The substrate includes an active area, provided in which are a number of doped regions, and an edge area, which is not active, distinct from and surrounding the active area. A dielectric region is arranged above the front surface, in at least the edge area. A passivation layer is arranged above the front surface of the substrate, and is in contact with the dielectric region in the edge area. The passivation layer includes at least one anchorage region that extends through the thickness of the dielectric region at the edge area, such as to define a mechanical anchorage for the passivation layer.

IPC Classes  ?

  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form

12.

DISCHARGE CIRCUIT AND METHOD FOR VOLTAGE TRANSITION MANAGEMENT

      
Application Number 18907071
Status Pending
Filing Date 2024-10-04
First Publication Date 2025-01-23
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Cattani, Alberto
  • Gasparini, Alessandro
  • Ramorini, Stefano

Abstract

In an embodiment, a method includes: providing a voltage setpoint to a voltage converter; generating an output voltage at a voltage rail with the voltage converter based on the voltage setpoint; when the voltage setpoint is transitioning from a first voltage setpoint to a second voltage setpoint that has a lower magnitude than the first voltage setpoint, providing a first constant current to a first node coupled to a control terminal of an output transistor to turn on the output transistor, where the output transistor includes a source terminal coupled to a first terminal of a first resistor, and where a current path of the output transistor is coupled to the voltage rail; and turning off the output transistor after the output voltage reaches the target output voltage corresponding to the second voltage setpoint.

IPC Classes  ?

  • G05F 1/56 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices

13.

DOPING ACTIVATION AND OHMIC CONTACT FORMATION IN A SiC ELECTRONIC DEVICE, AND SiC ELECTRONIC DEVICE

      
Application Number 18781808
Status Pending
Filing Date 2024-07-23
First Publication Date 2025-01-16
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Rascunà, Simone
  • Badalà, Paolo
  • Bassi, Anna
  • Bellocchi, Gabriele

Abstract

A method for manufacturing a SiC-based electronic device, that includes implanting, at a front side of a solid body of SiC having a conductivity of N type, dopant species of P type, thus forming an implanted region that extends in depth in the solid body starting from the front side and has a top surface co-planar with said front side; and generating a laser beam directed towards the implanted region in order to generate heating of the implanted region at temperatures comprised between 1500° C. and 2600° C. so as to form an ohmic contact region including one or more carbon-rich layers, for example graphene and/or graphite layers, in the implanted region and, simultaneously, activation of the dopant species of P type.

IPC Classes  ?

  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/872 - Schottky diodes

14.

HEMT TRANSISTOR WITH ADJUSTED GATE-SOURCE DISTANCE, AND MANUFACTURING METHOD THEREOF

      
Application Number 18781815
Status Pending
Filing Date 2024-07-23
First Publication Date 2025-01-16
Owner STMicroelectronics S.r.l. (Italy)
Inventor Iucolano, Ferdinando

Abstract

An HEMT includes: a heterostructure; a dielectric layer on the heterostructure; a gate electrode, which extends throughout the thickness of the dielectric layer; a source electrode; and a drain electrode. The dielectric layer extends between the gate electrode and the drain electrode and is absent between the gate electrode and the source electrode. In this way, the distance between the gate electrode and the source electrode can be designed in the absence of constraints due to a field plate that extends towards the source electrode.

IPC Classes  ?

  • H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
  • H01L 29/40 - Electrodes
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate

15.

METHOD FOR OPERATING IN BURST MODE ACTIVE CLAMP FLYBACK CONVERTERS AND CORRESPONDING ACTIVE CLAMP FLYBACK CONVERTER APPARATUS

      
Application Number 18896371
Status Pending
Filing Date 2024-09-25
First Publication Date 2025-01-16
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Adragna, Claudio
  • Gobbi, Massimiliano
  • Bosisio, Giuseppe

Abstract

An active flyback converter is transitioned between a plurality of operational states based on a comparison of a control voltage signal to voltage thresholds and a count of a number of consecutive switching cycles during which a clamp switch is kept off. The plurality of operational states includes a run state, an idle state, a first burst state, and a second burst state. Each set of consecutive switching cycles of the first burst state includes a determined number of switching cycles during which signals are generated to turn the power switch on and off and to maintain an off state of the clamp switch, and a switching cycle in a determined position in the set of switching cycles during which signals are sequentially generated to turn the power switch on, turn the power switch off, turn the clamp switch on and turn the clamp switch off.

IPC Classes  ?

  • H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • H02M 1/00 - Details of apparatus for conversion
  • H02M 1/34 - Snubber circuits

16.

CONSTANT CHARGE CONTROL FOR DC-DC CONVERTERS

      
Application Number 18218750
Status Pending
Filing Date 2023-07-06
First Publication Date 2025-01-09
Owner
  • STMicroelectronics S.r.l. (Italy)
  • Politecnico Di Milano (Italy)
Inventor
  • Cremonesi, Lorenzo
  • Melillo, Paolo
  • Gasparini, Alessandro
  • Ghioni, Massimo
  • Levantino, Salvatore

Abstract

Disclosed herein is a DC-DC converter, including a high-side power switch coupled between an input voltage and a switched node and a low-side power switch coupled between the switched node and ground. An inductor is coupled between the switched node and an output node. An output capacitor is coupled between the output node and ground. A control circuit is configured to operate the high-side power switch in a constant charge mode of operation to vary on-time of the high-side power switch to maintain a constant amount of charge being transferred to the output capacitor during each charging cycle, independent of variation of the input voltage.

IPC Classes  ?

  • H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
  • H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load

17.

SILICON CARBIDE-BASED ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE SAME

      
Application Number 18764893
Status Pending
Filing Date 2024-07-05
First Publication Date 2025-01-09
Owner STMICROELECTRONICS S.R.L. (Italy)
Inventor
  • Fiorenza, Patrick
  • Roccaforte, Fabrizio
  • Saggio, Mario Giuseppe

Abstract

An electronic device comprising: a semiconductor body of silicon carbide, SiC, having a first and a second face, opposite to one another along a first direction, which presents positive-charge carriers at said first face that form a positive interface charge; a first conduction terminal, which extends at the first face of the semiconductor body; a second conduction terminal, which extends on the second face of the semiconductor body; a channel region in the semiconductor body, configured to house, in use, a flow of electrons between the first conduction terminal and the second conduction terminal; and a trapping layer, of insulating material, which extends in electrical contact with the semiconductor body at said channel region and is designed so as to present electron-trapping states that generate a negative charge such as to balance, at least in part, said positive interface charge.

IPC Classes  ?

  • H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
  • H01L 27/06 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/872 - Schottky diodes

18.

CHARGE-BALANCE POWER DEVICE, AND PROCESS FOR MANUFACTURING THE CHARGE-BALANCE POWER DEVICE

      
Application Number 18825974
Status Pending
Filing Date 2024-09-05
First Publication Date 2024-12-26
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Santangelo, Antonello
  • Longo, Giuseppe
  • Renna, Lucio

Abstract

A charge-balance power device includes a semiconductor body having a first conductivity type. A trench gate extends in the semiconductor body from a first surface toward a second surface. A body region has a second conductivity type that is opposite the first conductivity type, and the body region faces the first surface of the semiconductor body and extends on a first side and a second side of the trench gate. Source regions having the first conductivity type extend in the body region and face the first surface of the semiconductor body. A drain terminal extends on the second surface of the semiconductor body. The device further comprises a first and a second columnar region having the second conductivity, which extend in the semiconductor body adjacent to the first and second sides of the trench gate, and the first and second columnar regions are spaced apart from the body region and from the drain terminal.

IPC Classes  ?

  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
  • H01L 21/265 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation
  • H01L 21/266 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation using masks
  • H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate

19.

MEMS DEVICE HAVING AN IMPROVED STRESS DISTRIBUTION AND MANUFACTURING PROCESS THEREOF

      
Application Number 18828564
Status Pending
Filing Date 2024-09-09
First Publication Date 2024-12-26
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Boni, Nicolo'
  • Vinciguerra, Lorenzo
  • Carminati, Roberto
  • Merli, Massimiliano

Abstract

A MEMS device is formed by a body of semiconductor material which defines a support structure. A pass-through cavity in the body is surrounded by the support structure. A movable structure is suspended in the pass-through cavity. An elastic structure extends in the pass-through cavity between the support structure and the movable structure. The elastic structure has a first and second portions and is subject, in use, to mechanical stress. The MEMS device is further formed by a metal region, which extends on the first portion of the elastic structure, and by a buried cavity in the elastic structure. The buried cavity extends between the first and the second portions of the elastic structure and communicates laterally with the pass-through cavity.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

20.

BLOCKING ELEMENT FOR CONNECTING PINS OF SEMICONDUCTOR DICE

      
Application Number 18830402
Status Pending
Filing Date 2024-09-10
First Publication Date 2024-12-26
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Minotti, Agatino
  • Salamone, Francesco
  • Fiorito, Massimiliano
  • Scordia, Alessio
  • Ponturo, Manuel

Abstract

A blocking element is provided for connecting an electronic, micro-mechanical and/or micro-electro-mechanical component, in particular for controlling the propulsion of an electric vehicle. The pin blocking element is formed by a holed body having a first end, a second end and an axial cavity configured for fittingly accommodating a connecting pin. A first flange projects transversely from the holed body at the first end and a second flange projects transversely from the holed body at the second end. The first flange has a greater area than the second flange and is configured to be ultrasonically soldered to a conductive bearing plate to form a power module.

IPC Classes  ?

  • H01L 23/49 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements consisting of soldered or bonded constructions wire-like
  • H01L 23/373 - Cooling facilitated by selection of materials for the device
  • H01L 23/492 - Bases or plates
  • H01R 12/58 - Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
  • H01R 43/02 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections

21.

DIGITAL-TO-ANALOG CONVERTER CIRCUIT

      
Application Number 18824653
Status Pending
Filing Date 2024-09-04
First Publication Date 2024-12-26
Owner STMicroelectronics S.r.I. (Italy)
Inventor
  • Maccarrone, Agatino Massimo
  • Conte, Antonino
  • Tomaiuolo, Francesco
  • Pisasale, Michelangelo
  • Ruta, Marco

Abstract

In accordance with an embodiment, a digital-to-analog converter (DAC) includes: a W-2W current mirror comprising a first plurality of MOS transistors and a second plurality of MOS transistors, wherein ones of the second plurality of MOS transistors are coupled between adjacent ones of the first plurality of MOS transistors; and a bulk bias generator having a plurality of output nodes coupled to corresponding bulk nodes of the first plurality of MOS transistors, wherein the plurality of output nodes are configured to provide voltages that are inversely proportional to temperature.

IPC Classes  ?

  • H03M 1/06 - Continuously compensating for, or preventing, undesired influence of physical parameters

22.

LEADFRAME-LESS LASER DIRECT STRUCTURING (LDS) PACKAGE

      
Application Number 18783260
Status Pending
Filing Date 2024-07-24
First Publication Date 2024-12-19
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Grandi, Luca

Abstract

The present disclosure is directed to a semiconductor package including a first laser direct structuring (LDS) resin layer and a second LDS resin layer on the first LDS resin layer. Respective surfaces of the first LDS resin layer and the second LDS resin layer are patterned utilizing an LDS process by exposing the respective surfaces to a laser. Patterning the first and second LDS resin layers, respectively, activates additive material present within the first and second LDS resin layers, respectively, converting the additive material from a non-conductive state to a conductive state. The LDS process is followed by a chemical plating step and an electrolytic plating process to form conductive structure coupled to a plurality of die within the first and second LDS resin layers. A molding compound layer is formed on surfaces of the conductive structures and covers the surfaces of the conductive structures. After these steps have been completed, the first LDS resin layer and the second LDS resin layer are singulated along channels filled with conductive material.

IPC Classes  ?

  • H01L 23/485 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements consisting of lead-in layers inseparably applied to the semiconductor body consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

23.

SEMICONDUCTOR DEVICE AND CORRESPONDING METHOD OF MANUFACTURE

      
Application Number 18808330
Status Pending
Filing Date 2024-08-19
First Publication Date 2024-12-12
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Graziosi, Giovanni
  • Derai, Michele

Abstract

Disclosed herein is a method, including attaching a semiconductor chip to a chip mounting portion on at least one leadframe portion, and attaching a passive component on a passive component mounting portion of the at least one leadframe portion. The method further includes forming a laser direct structuring (LDS) activatable molding material over the semiconductor chip, passive component, and the at least one leadframe portion. Desired patterns of structured areas are formed within the LDS activatable molding material by activating the LDS activatable molding material. The desired patterns of structured areas are metallized to form conductive areas within the LDS activatable molding material to thereby form electrical connection between the semiconductor chip and the passive component. A passivation layer is formed on the LDS activatable molding material.

IPC Classes  ?

  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 23/495 - Lead-frames
  • H01L 23/64 - Impedance arrangements

24.

RANDOM ACCESS MEMORY AND CORRESPONDING METHOD FOR MANAGING A RANDOM ACCESS MEMORY

      
Application Number 18773006
Status Pending
Filing Date 2024-07-15
First Publication Date 2024-12-05
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Casarsa, Marco

Abstract

A random access memory (RAM) includes an array of arranged in rows and columns. The rows of the storage elements correspond to respective memory locations of the RAM. The storage elements of a row have a common gated-clock input and respective data inputs, and each row of the array of storage elements includes a plurality of D type latches. In operation, an address input of the RAM receives a memory address identifying a memory location in the RAM. Clock gating circuitry of the RAM, generates respective gated-clock signals for the rows of the array of storage elements based on the memory address received at the address input. Memory operation are performed using storage elements of the array based on the gated-clock signals.

IPC Classes  ?

  • G11C 29/02 - Detection or location of defective auxiliary circuits, e.g. defective refresh counters
  • G06F 12/02 - Addressing or allocationRelocation

25.

ANTI-WHISKER COUNTER MEASURE USING A METHOD FOR MULTIPLE LAYER PLATING OF A LEAD FRAME

      
Application Number 18797031
Status Pending
Filing Date 2024-08-07
First Publication Date 2024-11-28
Owner STMicroelectronics S.r.l. (Italy)
Inventor Crema, Paolo

Abstract

A substrate of a lead frame is made of a first material. The substrate is covered by a barrier film made of a second material, different from the first material. The barrier film is then covered by a further film made of the first material. A first portion of the lead frame is encapsulated within an encapsulating body in a way which leaves a second portion of lead frame extending out from and not being covered by the encapsulating body. A first portion of the further film which is not covered by the encapsulating body is then stripped away to expose the barrier film at the second portion of the lead frame. A second portion of the further film is left remaining encapsulated by the encapsulating body. The exposed barrier film at the second portion of the lead frame is then covered with a tin or tin-based layer.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

26.

CHARGE BALANCE SEMICONDUCTOR DEVICE, IN PARTICULAR FOR HIGH EFFICIENCY RF APPLICATIONS, AND MANUFACTURING PROCESS THEREOF

      
Application Number 18784725
Status Pending
Filing Date 2024-07-25
First Publication Date 2024-11-14
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Schillaci, Antonino
  • Ponzio, Paola Maria
  • Cammarata, Roberto

Abstract

A semiconductor MOS device having an epitaxial layer with a first conductivity type formed by a drain region and by a drift region. The drift region accommodates a plurality of first columns with a second conductivity type and a plurality of second columns with the first conductivity type, the first and second columns alternating with each other and extending on the drain region. Insulated gate regions are each arranged on top of a respective second column; body regions having the second conductivity type extend above and at a distance from a respective first column, thus improving the output capacitance Cds of the device, for use in high efficiency RF applications.

IPC Classes  ?

  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
  • H03F 3/217 - Class D power amplifiersSwitching amplifiers

27.

SEMICONDUCTOR DEVICE AND CORRESPONDING METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES

      
Application Number 18774478
Status Pending
Filing Date 2024-07-16
First Publication Date 2024-11-07
Owner STMicroelectronics S.r.l. (Italy)
Inventor Tiziani, Roberto

Abstract

A packaged semiconductor device includes a substrate having a first surface and a second surface opposite the first surface. At least one semiconductor die is mounted at the first surface of the substrate. Electrically-conductive leads are arranged around the substrate, and electrically-conductive formations couple the at least one semiconductor die to selected leads of the electrically-conductive leads. A package molding material is molded onto the at least one semiconductor die, onto the electrically-conductive leads and onto the electrically-conductive formations. The package molding material leaves the second surface of the substrate uncovered by the package molding material. The substrate is formed by a layer of electrically-insulating material.

IPC Classes  ?

  • H01L 23/498 - Leads on insulating substrates
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 23/15 - Ceramic or glass substrates
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 23/488 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements consisting of soldered or bonded constructions
  • H01L 23/495 - Lead-frames
  • H01L 23/522 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
  • H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates

28.

SYSTEM AND METHOD FOR GENERATING A PLURALITY OF CONTROL SIGNALS IN MULTI-DIE SYSTEMS

      
Application Number 18631738
Status Pending
Filing Date 2024-04-10
First Publication Date 2024-10-31
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Giovannone, Juri
  • Bardelli, Roberto Giorgio
  • Gambero, Andrea
  • Corso, Alessio
  • Nicolosi, Donata Rosaria Maria

Abstract

The present invention relates to a system and a method for generating a plurality of control signals for multi-die applications. In particular, the invention relates to the generation of synchronized control signals generated by independent dies having an own local clock and provided with a common clock. In a first step, in each die, the period of the common clock signal is measured using a TDC. In further steps, in each die, a respective phase shift is evaluated and applied between the rising edge of the common clock signal and each of the rising edges of the output control signals, using delay unit.

IPC Classes  ?

  • G06F 1/10 - Distribution of clock signals
  • G04F 10/00 - Apparatus for measuring unknown time intervals by electric means
  • G06F 1/12 - Synchronisation of different clock signals
  • H03K 5/00 - Manipulation of pulses not covered by one of the other main groups of this subclass

29.

Ultrasound transmitter device for driving piezoelectric transducers

      
Application Number 18178110
Grant Number 12130360
Status In Force
Filing Date 2023-03-03
First Publication Date 2024-10-29
Grant Date 2024-10-29
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Leone, Antonio Davide
  • Poletto, Vanni

Abstract

In accordance with an embodiment, an ultrasound transmitter device includes a transformer comprising a secondary winding configured to be coupled to a piezoelectric transducer; a plurality of transistors coupled to the primary winding of the transformer and to a ground terminal via a sense resistor; an amplifier having an output coupled to control nodes of the plurality of transistors, a first input coupled to the sense resistor, and second input coupled to a reference resistor; a switching circuit configured to alternately couple control nodes of the plurality of transistors to an output of amplifier and to a reference node via complementary pulse signals, wherein the switching circuit is configured to turn on and turn off the plurality of transistors and operate the plurality of transistors in a push-pull manner; and a digital-to-analog converter having an output coupled to the reference resistor.

IPC Classes  ?

  • G01S 7/521 - Constructional features
  • G01S 7/524 - Transmitters
  • G01S 15/93 - Sonar systems specially adapted for specific applications for anti-collision purposes
  • G01S 15/931 - Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
  • G01S 7/52 - Details of systems according to groups , , of systems according to group
  • H04R 17/00 - Piezoelectric transducersElectrostrictive transducers

30.

METHODS AND DEVICES FOR ADAPTIVE VOLTAGE STEADYING

      
Application Number 18762215
Status Pending
Filing Date 2024-07-02
First Publication Date 2024-10-24
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Lupo, Nicola
  • Mammei, Enrico
  • Bartolini, Michele
  • Colli, Stefano

Abstract

A method to drive a digital to analog converter (DAC), the method including setting a reference current for the DAC with a reference current source, a base voltage being responsive to changes in a reference voltage at a reference node coupled with the reference current source; sensing a change in the reference voltage; and adaptively steadying the base voltage based on the change in the reference voltage to maintain proportionality between an output current of the DAC and the reference current.

IPC Classes  ?

  • H03M 1/66 - Digital/analogue converters
  • H03F 3/21 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
  • H03M 1/06 - Continuously compensating for, or preventing, undesired influence of physical parameters
  • H03M 1/78 - Simultaneous conversion using ladder network

31.

DC-DC CONVERTER APPARATUS WITH TIME-BASED CONTROL LOOP AND CORRESPONDING CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT

      
Application Number 18758327
Status Pending
Filing Date 2024-06-28
First Publication Date 2024-10-24
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Gasparini, Alessandro
  • Bertolini, Alessandro
  • Leoncini, Mauro
  • Ghioni, Massimo
  • Levantino, Salvatore

Abstract

A time based boost DC-DC converter generates an output voltage using an inductor. A voltage error between the output voltage and a reference voltage is determined and processed in a) an integral control branch which converts the voltage error into an integral control current signal used to control a current controlled oscillator, and b) a proportional branch which converts the voltage error into a proportional control current signal used to control signal a delay line. Current flowing in the inductor is sensed, attenuated and used to apply adjustment to the integral and proportional control current signals. The output from the current controlled oscillator is passed through the delay line and phase detected in order to generate pulse width modulation (PWM) control signaling driving switch operation in the converter.

IPC Classes  ?

  • H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
  • H02M 1/00 - Details of apparatus for conversion

32.

POWER MOSFET DRIVER CIRCUIT ARRANGEMENT AND CORRESPONDING CONTROL METHOD

      
Application Number 18630493
Status Pending
Filing Date 2024-04-09
First Publication Date 2024-10-17
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Pinzin, Francesco
  • Bertolini, Alessandro
  • Cattani, Alberto

Abstract

A power MOSFET driver circuit includes a feedback circuit configured to supply a feedback signal that signals when a gate voltage of the power MOSFET crosses a plateau value and the power MOSFET switches conduction state. The feedback circuit includes a comparator with a replica MOSFET of the power MOSFET, with scaled down dimensions, whose gate is coupled to the gate electrode of the power MOSFET. A bistable circuit has an input coupled to an output of the replica MOSFET and is configured to change a logic state of the feedback signal following the transition of the switching signal when the gate voltage of the power MOSFET crosses the plateau value and the power MOSFET switches conduction state.

IPC Classes  ?

  • H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors
  • H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
  • H02M 3/157 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
  • H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load

33.

METHOD OF MANUFACTURING SEMICONDUCTOR PRODUCTS, SEMICONDUCTOR PRODUCT, DEVICE AND TESTING METHOD

      
Application Number 18752274
Status Pending
Filing Date 2024-06-24
First Publication Date 2024-10-17
Owner STMicroelectronics S.r.l. (Italy)
Inventor Fontana, Fulvio Vittorio

Abstract

A semiconductor product includes a layer of semiconductor die package molding material embedding a semiconductor die having a front surface and an array of electrically-conductive bodies such as spheres or balls around the semiconductor die. The electrically-conductive bodies have front end portions around the front surface of the semiconductor die and back end portions protruding from the layer of semiconductor die package molding material. Electrically-conductive formations are provided between the front surface of the semiconductor die and front end portions of the electrically-conductive bodies left uncovered by the package molding material. Light-permeable sealing material can be provided at electrically-conductive formations to facilitate inspecting the electrically-conductive formations via visual inspection through the light-permeable sealing material.

IPC Classes  ?

  • H01L 23/00 - Details of semiconductor or other solid state devices
  • G01N 21/956 - Inspecting patterns on the surface of objects
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 25/065 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

34.

HIGH SPEED DATA TRANSMISSION IN BATTERY MANAGEMENT SYSTEMS WITH ISOLATED SPI INTERFACE

      
Application Number 18756821
Status Pending
Filing Date 2024-06-27
First Publication Date 2024-10-17
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Oreggia, Daniele
  • Cannone, Alessandro
  • Alagna, Diego
  • Raimondi, Marcello

Abstract

A battery management system includes: a controller; a master battery management integrated circuit (BMIC) device coupled to the controller and configured to communicate with the controller through a standard Serial Peripheral Interface (SPI) protocol; and a first slave BMIC device and a second slave BMIC device that are connected in a daisy chain configuration and communicating through Isolated SPI interfaces, where the first slave BMIC device is coupled to the master BMIC through an Isolated SPI interface, where the Isolated SPI interface uses a differential signal comprising a positive signal and a complementary negative signal, where a bit frame of the positive signal includes a bit period followed by an idle period having a same duration as the bit period, where the first slave BMIC device and the second slave BMIC device are configured to be coupled to a first battery pack and a second battery pack, respectively.

IPC Classes  ?

  • G06F 13/42 - Bus transfer protocol, e.g. handshakeSynchronisation
  • G06F 13/364 - Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control using independent requests or grants, e.g. using separated request and grant lines
  • G06F 13/40 - Bus structure

35.

VOLTAGE REGULATOR CIRCUIT FOR A SWITCHING CIRCUIT LOAD

      
Application Number 18746752
Status Pending
Filing Date 2024-06-18
First Publication Date 2024-10-10
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Pasotti, Marco
  • Capecchi, Laura
  • Zurla, Riccardo
  • Carissimi, Marcella

Abstract

A voltage regulator receives a reference voltage and generates a regulated voltage using a MOSFET having a gate terminal configured to receive a control voltage. A charge pump receives the regulated voltage and generates a charge pump voltage in response to an enable signal and a clock signal generated in response to the enable signal. The voltage regulator further includes a first switched capacitor circuit coupled to the gate terminal and configured to selectively charge a first capacitor with a first current and impose a first voltage drop on the control voltage in response to assertion of the enable signal. The voltage regulator also includes a second switched capacitor circuit coupled to the gate terminal and configured to selectively charge a second capacitor with a second current and impose a second voltage drop on the control voltage in response to one logic state of the clock signal.

IPC Classes  ?

  • H02M 1/00 - Details of apparatus for conversion
  • G05F 1/575 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices characterised by the feedback circuit
  • G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or
  • H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode

36.

VOLTAGE REGULATION CIRCUIT

      
Application Number 18611321
Status Pending
Filing Date 2024-03-20
First Publication Date 2024-10-03
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Bimbi, Cesare
  • Privitera, Salvatore Giuseppe
  • Pulvirenti, Francesco

Abstract

The present disclosure is directed to a voltage regulation circuit receiving as input an input voltage, in particular a DC voltage supply, and outputting a regulated voltage. The voltage regulation circuit includes a voltage reference circuit configured to supply a reference voltage which is independent, in particular with respect to temperature variations. The voltage regulation circuit includes a first circuit branch and a second circuit branch in parallel coupled between the input voltage and ground. The first branch includes a current generator including a first depletion MOSFET transistor, which gate source voltage is a PTAT (Proportional To Absolute Temperature) voltage, coupled between the input voltage and the voltage reference circuit. The voltage reference circuit includes a first enhancement MOSFET transistor, which gate source voltage is a CTAT (Complementary To Absolute Temperature) voltage, coupled to the ground by its source through a source resistor, on which a reference voltage, sum of the PTAT voltage drop on the source resistor and of the gate source voltage of the enhancement MOSFET transistor being formed. The first enhancement MOSFET transistor is arranged on the first branch and coupled by the drain to the first depletion MOSFET transistor in a control node. The control node is coupled to the gate of the first enhancement MOSFET transistor. The first depletion MOSFET transistor injects a PTAT current in the first branch determining a PTAT voltage drop on the source resistor. The second branch includes an output stage coupled between the voltage to regulate and an output node on which the regulated voltage is taken. The output stage includes a second depletion MOSFET transistor on which output is taken at the output node. A resistive voltage divider is coupled to the output node, outputting on a respective divider output node a divided output regulated voltage which is inputted as the process variable of a negative feedback loop which is also coupled to the reference voltage. The output of the negative feedback loop controls the gate of the second MOSFET transistor.

IPC Classes  ?

  • G05F 1/46 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC
  • G05F 1/575 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices characterised by the feedback circuit
  • G05F 3/26 - Current mirrors

37.

CONTAINMENT AND TRANSPORTATION TRAY FOR ELECTRONIC COMPONENTS HAVING SMALL DIMENSIONS AND LOW WEIGHT

      
Application Number 18735020
Status Pending
Filing Date 2024-06-05
First Publication Date 2024-09-26
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Pesaturo, Massimiliano
  • Greppi, Massimo

Abstract

Tray for containing electronic components formed by a bearing body, substantially planar, having a first and a second face. First holding structures extend from the first face of the bearing body and second holding structures extend from the second face of the bearing body. Each second holding structure is aligned with a respective first holding structure in a vertical direction perpendicular to the first and the second faces of the bearing body. Each first holding structure is formed by first protrusions mutually spaced by first spaces and arranged along a first closed line; each second holding structure is formed by second protrusions mutually spaced by second spaces and arranged along a second closed line. Each second protrusion is aligned, in parallel with the vertical direction, with the first spaces and each first protrusion is aligned, in parallel with the vertical direction, with the second spaces.

IPC Classes  ?

  • B65D 1/36 - Trays or like shallow containers with moulded compartments or partitions
  • B65D 85/68 - Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
  • H05K 13/00 - Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components

38.

LED ARRAY DRIVER WITH CHANNEL TO CHANNEL AND CHANNEL TO GROUND EXTERNAL PIN SHORT DETECTION

      
Application Number 18672975
Status Pending
Filing Date 2024-05-23
First Publication Date 2024-09-19
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Seminara, Maria Francesca
  • Musumeci, Salvatore Rosario

Abstract

A LED driver chip includes driver circuits, each being coupled to a different pin and including a fault-detection circuit. Each fault-detection circuit includes a force circuit forcing current to a force node, and a sense circuit including a current sensor coupled to the force node, and a comparator comparing a voltage at the force node to a reference voltage to generate a comparison output. Control circuitry, in a pin-to-pin short detection mode, activates the force circuit of a first of the driver circuits and activates thep sense circuit of a second of the driver circuits, in a pin-to-ground short detection mode, activates the force and the sense circuit of the same driver circuits. The comparison output of the comparator of the activated sense circuit, if is higher or if lower of the reference voltage, indicates if short between pin or to ground, respectively, is present.

IPC Classes  ?

  • H05B 45/54 - Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDsCircuit arrangements for operating light-emitting diodes [LED] responsive to LED lifeProtective circuits in a series array of LEDs
  • H05B 45/46 - Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines

39.

ANALYSIS UNIT FOR A TRANSPORTABLE MICROFLUIDIC DEVICE, IN PARTICULAR FOR SAMPLE PREPARATION AND MOLECULE ANALYSIS

      
Application Number 18674548
Status Pending
Filing Date 2024-05-24
First Publication Date 2024-09-19
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Cereda, Marco
  • Raia, Lillo
  • Pirola, Danilo

Abstract

An analysis unit formed by an analysis body housing an analysis chamber and having a sample inlet and a supply channel configured to fluidically connect the sample inlet to the analysis chamber. Dried assay reagents are arranged in the analysis chamber and are contained in an alveolar mass. For instance, the alveolar mass is a lyophilized mass formed by excipients and by assay-specific reagents.

IPC Classes  ?

  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
  • A61B 5/15 - Devices for taking samples of blood
  • A61B 5/154 - Devices for taking samples of blood specially adapted for taking samples of venous or arterial blood, e.g. by syringes using pre-evacuated means
  • B01F 33/30 - Micromixers
  • B01F 33/40 - Mixers using gas or liquid agitation, e.g. with air supply tubes
  • B01F 33/452 - Magnetic mixersMixers with magnetically driven stirrers using independent floating stirring elements
  • B01L 9/00 - Supporting devicesHolding devices
  • C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means
  • C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
  • C12Q 1/6844 - Nucleic acid amplification reactions

40.

SENSOR DEVICE AND METHOD FOR FLAME PRESENCE DETECTION

      
Application Number 18432795
Status Pending
Filing Date 2024-02-05
First Publication Date 2024-09-12
Owner STMicroelectronics S.r.I. (Italy)
Inventor
  • Alessi, Enrico Rosario
  • Dellutri, Michele Alessio
  • Passaniti, Fabio

Abstract

A sensor device for detecting a flame comprises a carbon dioxide sensor for detecting a CO2 concentration, a fuel sensor for detecting the combustion of a fuel, an electrostatic charge variation sensor for detecting electrostatic charge variations generated by the flame, and a control unit. The control unit is configured to acquire a carbon dioxide signal indicative of the concentration of carbon dioxide, a fuel signal indicative of the fuel combustion, and an electrostatic charge variation signal indicative of a difference between the electrostatic charge variations detected by a first and a second electrode of the electrostatic charge variation sensor, determine a quantized signal based on the electrostatic charge variation signal, determine an aggregate datum based on the carbon dioxide signal, the fuel signal and the electrostatic charge variation signal, and generate, based on the aggregate datum, a flame signal indicative of the presence or absence of the flame.

IPC Classes  ?

41.

METHODS AND APPARATUS FOR SUPPORTING SECONDARY PLATFORM BUNDLES

      
Application Number 18039164
Status Pending
Filing Date 2021-12-06
First Publication Date 2024-09-05
Owner STMICROELECTRONICS S.R.L. (Italy)
Inventor
  • Massascusa, Sofia
  • Follero, Giulio
  • Alfarano, Marco

Abstract

A method includes compiling, by a compiler of a Smart Secure Platform (SSP) supporting a Primary Platform and a Secondary Platform, source code comprising an implementation of an operating system of the Secondary Platform and applications of the Secondary Platform, to produce compiled source code compatible by an operating system of the Primary Platform; linking, by the compiler, personalization data to the compiled source code to produce a native Secondary Platform Bundle (SPB) compatible with the Primary Platform, the personalization data being associated with a subscription of a user of the SSP; and delivering, by the compiler, the native SPB.

IPC Classes  ?

  • G06F 8/41 - Compilation
  • G06F 8/76 - Adapting program code to run in a different environmentPorting

42.

PWM SIGNAL GENERATOR CIRCUIT AND RELATED INTEGRATED CIRCUIT

      
Application Number 18657642
Status Pending
Filing Date 2024-05-07
First Publication Date 2024-09-05
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Tripodi, Domenico
  • Giussani, Luca
  • Dalla Stella, Simone Ludwig

Abstract

A PWM signal generator circuit includes a multiphase clock generator that generates a number n of phase-shifted clock phases having the same clock period and being phase shifted by a time corresponding to a fraction 1/n of the clock period. The PWM signal generator circuit determines for each switch-on duration first and second integer numbers, and for each switch-off duration third and fourth integer numbers. The first integer number is indicative of the integer number of clock periods of the switch-on duration and the second integer number is indicative of the integer number of the additional fractions 1/n of the clock period of the switch-on duration. The third integer number is indicative of the integer number of clock periods of the switch-off duration, and the fourth integer number is indicative of the integer number of the additional fractions 1/n of the clock period of the switch-off duration.

IPC Classes  ?

  • H03K 3/017 - Adjustment of width or dutycycle of pulses
  • H03K 5/04 - Shaping pulses by increasing durationShaping pulses by decreasing duration
  • H03K 5/05 - Shaping pulses by increasing durationShaping pulses by decreasing duration by the use of clock signals or other time reference signals
  • H03L 7/08 - Details of the phase-locked loop

43.

DC-DC CONVERTER WITH GALVANIC ISOLATION AND CORRESPONDING METHOD OF CONTROL OF A DC-DC CONVERTER

      
Application Number 18437919
Status Pending
Filing Date 2024-02-09
First Publication Date 2024-08-29
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Perrotta, Stefano
  • Privitera, Salvatore Giuseppe
  • Pulvirenti, Francesco

Abstract

Provided is a DC-DC converter with galvanic isolation comprising a resonant oscillator coupled to a primary winding of a galvanic isolation transformer. A rectifier is coupled to a secondary winding of the transformer to provide an output voltage. The DC-DC converter comprises a regulation loop configured to regulate an output voltage with respect to a reference voltage by controlling a current flowing in the resonant oscillator as a function of a result of a signal indicative of the comparison between the output voltage and the reference voltage. The resonant oscillator is configured to operate at a frequency, in particular tuned at sub-resonant point, in particular sub-harmonic frequency, below a resonance frequency of the resonant oscillator which maximizes a quality factor of the resonant oscillator, in particular below a resonance frequency of a LC tank circuit comprised in the resonant oscillator which maximizes a quality factor of the LC tank circuit.

IPC Classes  ?

  • H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • H02M 1/00 - Details of apparatus for conversion
  • H02M 3/00 - Conversion of DC power input into DC power output
  • H02M 3/338 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement

44.

METHOD FOR PERFORMING AN OPERATIVE SYSTEM UPDATE IN A SECURE ELEMENT AND CORRESPONDING SECURE ELEMENT AND APPARATUS

      
Application Number 18438113
Status Pending
Filing Date 2024-02-09
First Publication Date 2024-08-22
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Di Cosmo, Luca
  • Veneroso, Amedeo

Abstract

A method includes preserving custom objects and system objects of an application during an operative system update operation in a secure element. The custom objects and system objects are saved. The application is uninstalled and a new instance of the application is created. The saved custom objects and the saved system objects are recovered, and the new instance of the application is updated with the recovered custom objects and system objects. Saving a system object includes acquiring information content of fields of the system object, encoding and storing the information content into a data serialization format in a reserved area of a non-volatile memory of the secure element. Recovering the saved system object includes reading and decoding the encoded information content from the reserved area of the non-volatile memory of the secure element. The system object is recovered using the obtained information content of the fields.

IPC Classes  ?

  • G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
  • G06F 21/79 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories

45.

PULSE WIDTH MODULATION DECODER CIRCUIT, CORRESPONDING DEVICE AND METHODS OF OPERATION

      
Application Number 18643249
Status Pending
Filing Date 2024-04-23
First Publication Date 2024-08-15
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Poletto, Vanni
  • Floriani, Ivan

Abstract

A circuit for decoding a pulse width modulated (PWM) signal generates an output signal switching between a first and second logic values as a function of a duty-cycle of the PWM signal. Current generating circuitry receives the PWM signal and injects a current to and sinks a current from an intermediate node as a function of the values of the PWM signal. A capacitor coupled to the intermediate node is alternatively charged and discharged by the injected and sunk currents, respectively, to generate a voltage. A comparator circuit coupled to the intermediate node compares the generated voltage to a comparison voltage and drives the logic values of the output signal as a function of the comparison.

IPC Classes  ?

  • H03K 9/08 - Demodulating pulses which have been modulated with a continuously-variable signal of duration- or width-modulated pulses
  • H02M 1/096 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices the power supply of the control circuit being connected in parallel to the main switching element
  • H02M 3/156 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

46.

INERTIAL AXIS FUSION DEVICE, SYSTEM AND METHOD

      
Application Number 18160723
Status Pending
Filing Date 2023-01-27
First Publication Date 2024-08-15
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Magnani, Alessandro
  • Quartiroli, Matteo
  • Rizzo Piazza Roncoroni, Alessandra Maria
  • Rosingana, Paolo

Abstract

A device includes one or more inertial sensors and fusion circuitry coupled to the one or more inertial sensors. The inertial sensors, in operation, generate inertial sensor data with respect to a plurality of axes of movement. The fusion circuitry, in a polar fusion mode of operation, applies a plurality of polar rotation operations to the generated inertial sensor data to rotate the generated inertial sensor data onto an axis of the plurality of axes of movement. A fused data signal is generated based on a result of the plurality of polar rotation operations. The plurality of inertial sensors may include bone-conduction sensors.

IPC Classes  ?

  • G01C 19/5776 - Signal processing not specific to any of the devices covered by groups

47.

System and Method for Power Module Defect Detection

      
Application Number 18168017
Status Pending
Filing Date 2023-02-13
First Publication Date 2024-08-15
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Calabretta, Michele
  • Rundo, Francesco
  • Coffa, Salvatore
  • Torrisi, Marco Alfio
  • Sarpietro, Riccardo Emanuele

Abstract

In an embodiment, a method includes: capturing a first image of a power module, the power module including a power electronics circuit, the power electronics circuit including power semiconductor dies; identifying positions of the power semiconductor dies in the first image with a die detection model; extracting second images of the power semiconductor dies from the first image according to the positions of the power semiconductor dies in the first image; and identifying defects of the power semiconductor dies in the second images with a defect detection model, the defect detection model being different from the die detection model.

IPC Classes  ?

  • G01N 21/95 - Investigating the presence of flaws, defects or contamination characterised by the material or shape of the object to be examined
  • G06T 7/00 - Image analysis

48.

CHARGE AMPLIFICATION CIRCUITS AND METHODS

      
Application Number 18634675
Status Pending
Filing Date 2024-04-12
First Publication Date 2024-08-15
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Modaffari, Roberto
  • Pesenti, Paolo
  • Maiore, Mario
  • Chiarillo, Tiziano

Abstract

A circuit includes an amplifier, a bias voltage node, and a first set of switches configured, based on a first reset signal having a first value, to couple first and second input nodes to the bias voltage node and to couple first and second output nodes of the amplifier. First and second feedback branches each include a respective RC network including a plurality of capacitances. The first and second feedback branches further include a second set of switches intermediate input nodes and the capacitances, and a third set of switches intermediate input nodes and the plurality of capacitances. These switches selectively couple the capacitances to the input nodes and output nodes, based on a second reset signal having a first value. The second reset signal keeps the first value for a determined time interval exceeding a time interval in which the first reset signal has the first value.

IPC Classes  ?

  • H03F 3/70 - Charge amplifiers
  • G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
  • H03F 3/45 - Differential amplifiers

49.

LOW NOISE GEIGER-MODE AVALANCHE PHOTODIODE AND MANUFACTURING PROCESS

      
Application Number 18608301
Status Pending
Filing Date 2024-03-18
First Publication Date 2024-08-08
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Mazzillo, Massimo Cataldo
  • Cinnera Martino, Valeria

Abstract

In at least one embodiment, a Geiger-mode avalanche photodiode, including a semiconductor body, is provided. The semiconductor body includes a semiconductive structure and a front epitaxial layer on the semiconductive structure. The front epitaxial layer has a first conductivity type. An anode region having a second conductivity type that is different from the first conductivity type extends into the front epitaxial layer. The photodiode further includes a plurality of gettering regions in the semiconductive structure.

IPC Classes  ?

  • H01L 31/107 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier working in avalanche mode, e.g. avalanche photodiode
  • H01L 27/144 - Devices controlled by radiation
  • H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
  • H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

50.

METHOD OF MANUFACTURING SEMICONDUCTOR PRODUCTS, CORRESPONDING SUBSTRATE, SEMICONDUCTOR PRODUCT AND TOOL

      
Application Number 18637906
Status Pending
Filing Date 2024-04-17
First Publication Date 2024-08-08
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Mazzola, Mauro
  • De Santa, Matteo

Abstract

In providing electrical wire-like connections between at least one semiconductor die arranged on a semiconductor die mounting area of a substrate and an array of electrically-conductive leads in the substrate, pressure force is applied to the electrically-conductive leads in the substrate during bonding the wire-like connections to the electrically-conductive leads. Such a pressure force is applied to the electrically-conductive leads in the substrate via a pair of mutually co-operating force transmitting surfaces. These surfaces include a first convex surface engaging a second concave surface.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 21/50 - Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups or
  • H01L 23/00 - Details of semiconductor or other solid state devices

51.

CAPACITIVE, MEMS-TYPE ACOUSTIC TRANSDUCER HAVING SEPARATE SENSITIVE AND TRANSDUCTION AREAS AND MANUFACTURING PROCESS THEREOF

      
Application Number 18416751
Status Pending
Filing Date 2024-01-18
First Publication Date 2024-08-01
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Vercesi, Federico
  • Cerini, Fabrizio
  • Adorno, Silvia

Abstract

Capacitive, MEMS-type acoustic transducer, having a sound collection part and a transduction part. A substrate region surrounds a first chamber arranged in the sound collection part and open towards the outside; a fixed structure is coupled to the substrate region; a cap region is coupled to the fixed structure. A sensitive membrane is arranged in the sound collection part, is coupled to the fixed structure and faces the first chamber. A transduction chamber is arranged in the transduction part, hermetically closed with respect to the outside and accommodates a detection membrane. An articulated structure extends between the sensitive membrane and the detection membrane, through the walls of the transduction chamber. A fixed electrode faces and is capacitively coupled to the detection membrane. Conducive electrical connection regions extend above the substrate region, into the transduction chamber.

IPC Classes  ?

  • H04R 19/04 - Microphones
  • H04R 7/04 - Plane diaphragms
  • H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
  • H04R 19/00 - Electrostatic transducers
  • H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

52.

METHODS AND CIRCUITS FOR ELECTRICAL POWER SUPPLY

      
Application Number 18415485
Status Pending
Filing Date 2024-01-17
First Publication Date 2024-07-25
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Bianco, Alberto
  • Ciappa, Francesco
  • Bondetti, Donato

Abstract

A circuit includes at least one coupling node configured to be coupled, via a cable, to a load to transmit a supply voltage thereto. The circuit includes test circuitry configured to sense at least one sensing signal indicative of a value of the cable impedance and/or of the cable voltage across the cable, to perform a comparison between the at least one sensing signal and at least one threshold indicative either of a threshold resistance value for the cable impedance or indicative of a threshold voltage value for the cable voltage, produce a comparison signal as a result of the comparison.

IPC Classes  ?

  • H03M 1/12 - Analogue/digital converters
  • H03M 1/36 - Analogue value compared with reference values simultaneously only, i.e. parallel type
  • H03M 1/46 - Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter

53.

METHOD OF MANUFACTURING MULTI-DIE SEMICONDUCTOR DEVICES AND CORRESPONDING MULTI-DIE SEMICONDUCTOR DEVICE

      
Application Number 18624589
Status Pending
Filing Date 2024-04-02
First Publication Date 2024-07-25
Owner STMicroelectronics S.r.l. (Italy)
Inventor Crema, Paolo

Abstract

An multi-die semiconductor device disclosed herein includes a metallic leadframe with a central die pad encircled by electrically-conductive leads. Mounted on the die pad are two semiconductor dice, each with dedicated bonding pads on the surfaces facing away from the die pad. A layer of laser-activatable material is precisely molded over the dice and the leadframe. This layer forms a network of laser-activated lines: the first subset establishes electrical connections between the dice bonding pads and the leadframe leads, while the second subset interconnects the bonding pads of the first die to those of the second. There are two distinct metallic layers; the lower one, directly on the laser-activated lines, is formed of electroless-plated material, and the upper one, enhancing the structure, is formed of electroplated material, thus providing robust and reliable interconnections within the device.

IPC Classes  ?

  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 23/495 - Lead-frames

54.

HALF-BRIDGE DRIVER CIRCUIT, RELATED INTEGRATED CIRCUIT, HALF-BRIDGE SWITCHING CIRCUIT AND METHOD

      
Application Number 18407782
Status Pending
Filing Date 2024-01-09
First Publication Date 2024-07-18
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Fontana, Marco Giovanni

Abstract

A half-bridge driver circuit is provided. The circuit includes a detector circuit that generates a signal indicating whether a floating reference voltage is greater than a second supply voltage. The detector circuit includes a first circuit, a second circuit and combinational logic circuit. A first comparator circuit of the first circuit monitors a voltage drop at a resistance and sets a first control signal to a first logic level when the monitored voltage drop is smaller than a first threshold. A second comparator circuit of the second circuit monitors a current provided by an output transistor of a current mirror and sets a second control signal to a first logic level when the monitored current is greater than a second threshold. The combinational logic circuit asserts the signal when the first control signal has the respective first logic level or the second control signal has the respective first logic level.

IPC Classes  ?

  • H03K 17/06 - Modifications for ensuring a fully conducting state
  • H03K 17/30 - Modifications for providing a predetermined threshold before switching
  • H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors

55.

MEMS DEVICE HAVING AN IMPROVED CAP AND MANUFACTURING PROCESS THEREOF

      
Application Number 18409584
Status Pending
Filing Date 2024-01-10
First Publication Date 2024-07-18
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Nicoli, Silvia
  • Tentori, Lorenzo
  • Bruno, Giuseppe

Abstract

The MEMS device has: a sensor body having a functional structure configured to transduce a physical or chemical quantity into a corresponding electrical quantity; and a cap bonded to the sensor body and having a first cavity overlying the functional structure. The cap has a supporting portion and a cover portion that form the first cavity. The supporting portion is bonded to the sensor body. The cover portion is bonded to the supporting portion and has an inner wall delimiting on a side the first cavity and facing the functional structure. The MEMS device further has a first coating that extends within the first cavity on the inner wall of the cover portion.

IPC Classes  ?

  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

56.

MOSFET DEVICE OF SILICON CARBIDE HAVING AN INTEGRATED DIODE AND MANUFACTURING PROCESS THEREOF

      
Application Number 18416702
Status Pending
Filing Date 2024-01-18
First Publication Date 2024-07-18
Owner STMICROELECTRONICS S.R.L. (Italy)
Inventor
  • Saggio, Mario Giuseppe
  • Rascuná, Simone

Abstract

An integrated MOSFET device is formed in a body of silicon carbide and with a first type of conductivity. The body accommodates a first body region, with a second type of conductivity; a JFET region adjacent to the first body region; a first source region, with the first type of conductivity, extending into the interior of the first body region; an implanted structure, with the second type of conductivity, extending into the interior of the JFET region. An isolated gate structure lies partially over the first body region, the first source region and the JFET region. A first metallization layer extends over the first surface and forms, in direct contact with the implanted structure and with the JFET region, a JBS diode.

IPC Classes  ?

  • H01L 27/06 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
  • H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
  • H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
  • H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
  • H01L 29/872 - Schottky diodes

57.

DEVICE, SYSTEM AND METHOD FOR SYNCHRONIZING OF DATA FROM MULTIPLE SENSORS

      
Application Number 18617533
Status Pending
Filing Date 2024-03-26
First Publication Date 2024-07-18
Owner
  • STMICROELECTRONICS S.r.l. (Italy)
  • STMICROELECTRONICS, INC. (USA)
Inventor
  • Sayed, Karimuddin
  • Pabla, Chandandeep Singh
  • Bracco, Lorenzo
  • Rizzardini, Federico

Abstract

In an embodiment, a device comprises a memory, which, in operation, stores data samples associated with a plurality of data sensors, and circuitry, coupled to the memory, wherein the circuitry, in operation, generates synchronized output data sets associated with the plurality of data sensors. Generating a synchronized output data set includes: determining a reference sample associated with a sensor of the plurality of sensors; verifying a timing validity of a data sample associated with another sensor of the plurality of sensors; identifying a closest-in-time data sample associated with the another sensor of the plurality of sensors with respect to the reference sample; and generating the synchronized output data set based on interpolation.

IPC Classes  ?

  • H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
  • G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
  • G01D 9/00 - Recording measured values
  • H04W 4/70 - Services for machine-to-machine communication [M2M] or machine type communication [MTC]

58.

CIRCUIT AND METHOD FOR DRIVING A MICRO-ELECTRO-MECHANICAL RESONATOR OF A GYROSCOPE WITH A REDUCED EXCITATION OF SPURIOUS HARMONICS

      
Application Number 18403324
Status Pending
Filing Date 2024-01-03
First Publication Date 2024-07-18
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Gattere, Gabriele
  • Garbarino, Marco

Abstract

A driving circuit is implemented for a driving resonator stage of a MEMS gyroscope including at least a first and a second electrode and a movable mass The driving circuit includes a synchronization stage which receives an electrical position signal indicative of the position of the movable mass and generates a reference signal phase- and frequency-locked with the electrical position signal; a driving stage which generates, on the basis of the reference signal, a first and a second driving signal, which are applied to the first and, respectively, the second electrodes, so that the movable mass is subject to a first and a second electrostatic force which cause the movable mass to oscillate.

IPC Classes  ?

  • G01C 19/5755 - Structural details or topology the devices having a single sensing mass

59.

System and method for determining whether an electronic device is located on a stationary or stable surface

      
Application Number 18048360
Grant Number 12175024
Status In Force
Filing Date 2022-10-20
First Publication Date 2024-07-11
Grant Date 2024-12-24
Owner STMICROELECTRONICS S.R.L. (Italy)
Inventor
  • Rivolta, Stefano Paolo
  • Rizzardini, Federico

Abstract

A method includes receiving electrostatic sensor data in a processor of an electronic device from an electrostatic sensor mounted behind a touchscreen of the electronic device and using the electrostatic sensor data to determine when the touchscreen is being used. Based on whether or not the touchscreen is being used, an on-table detection (OTD) algorithm is selected from a plurality of available OTD algorithms. In one or more examples, the OTD algorithm may also be selected based on the current device mode of the electronic device, which may be determined from a lid angle, a screen angle, and a keyboard angle of the electronic device. The selected OTD algorithm is run to determine whether or not the electronic device is located on a stationary or stable surface.

IPC Classes  ?

  • G06F 3/0346 - Pointing devices displaced or positioned by the userAccessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
  • G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

60.

SYSTEM FOR MONITORING DEFECTS WITHIN AN INTEGRATED SYSTEM PACKAGE

      
Application Number 18489737
Status Pending
Filing Date 2023-10-18
First Publication Date 2024-07-11
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Giusti, Domenico
  • Del Sarto, Marco
  • Quaglia, Fabio
  • Duqi, Enri

Abstract

An integrated electronic system is provided with a package formed by a support base and a coating region arranged on the support base and having at least a first system die, including semiconductor material, coupled to the support base and arranged in the coating region. The integrated electronic system also has, within the package, a monitoring system configured to determine the onset of defects within the coating region, through the emission of acoustic detection waves and the acquisition of corresponding received acoustic waves, whose characteristics are affected by, and therefore are indicative of, the aforementioned defects.

IPC Classes  ?

61.

PACKAGED HIGH VOLTAGE MOSFET DEVICE WITH CONNECTION CLIP AND MANUFACTURING PROCESS THEREOF

      
Application Number 18493686
Status Pending
Filing Date 2023-10-24
First Publication Date 2024-07-11
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Stella, Cristiano Gianluca
  • Russo, Fabio

Abstract

An HV MOSFET device has a body integrating source conductive regions. Projecting gate structures are disposed above the body, laterally offset with respect to the source conductive regions. Source contact regions, of a first metal, are arranged on the body in electric contact with the source conductive regions, and source connection regions, of a second metal, are arranged above the source contact regions and have a height protruding with respect to the projecting gate structures. A package includes a metal support bonded to a second surface of the body, and a dissipating region, above the first surface of the semiconductor die. The dissipating region includes a conductive plate having a planar face bonded to the source connection regions and spaced from the projecting gate structures. A package mass of dielectric material is disposed between the support and the dissipating region and incorporates the semiconductor die. The dissipating region is a DBC-type insulation multilayer.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

62.

4H-SIC ELECTRONIC DEVICE WITH IMPROVED SHORT-CIRCUIT PERFORMANCES, AND MANUFACTURING METHOD THEREOF

      
Application Number 18464141
Status Pending
Filing Date 2023-09-08
First Publication Date 2024-07-04
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Saggio, Mario Giuseppe
  • Magri', Angelo
  • Zanetti, Edoardo
  • Guarnera, Alfio

Abstract

An electronic device includes a semiconductor body of silicon carbide, and a body region at a first surface of the semiconductor body. A source region is disposed in the body region. A drain region is disposed at a second surface of the semiconductor body. A doped region extends seamlessly at the entire first surface of the semiconductor body and includes one or more first sub-regions having a first doping concentration and one or more second sub-regions having a second doping concentration lower than the first doping concentration. Thus, the device has zones alternated to each other having different conduction threshold voltage and different saturation current.

IPC Classes  ?

  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form

63.

FLEXIBLE DATA STREAM ENCRYPTION/DECRYPTION ENGINE FOR STREAM-ORIENTED NEURAL NETWORK ACCELERATORS

      
Application Number 18176315
Status Pending
Filing Date 2023-02-28
First Publication Date 2024-07-04
Owner
  • STMICROELECTRONICS S.r.l. (Italy)
  • STMicroelectronics International N.V. (Switzerland)
Inventor
  • Girardi, Francesca
  • Desoli, Giuseppe
  • Susella, Ruggero
  • Boesch, Thomas
  • Zambotti, Paolo Sergio

Abstract

A hardware accelerator includes functional circuits and streaming engines. An interface is coupled to the plurality of streaming engines. The interface, in operation, performs stream cipher operations on data words associated with data streaming requests. The performing of a stream cipher operation on a data word includes generating a mask based on an encryption ID associated with a streaming engine of the plurality of streaming engines and an address associated with the data word, and XORing the generated mask with the data word. The hardware accelerator may include configuration registers to store configuration information indicating a respective security state associated with functional circuits and streaming engine of the hardware accelerator, which may be used to control performance of operations by the hardware accelerator.

IPC Classes  ?

64.

PROGRAMMABLE HARDWARE ACCELERATOR CONTROLLER

      
Application Number 18176323
Status Pending
Filing Date 2023-02-28
First Publication Date 2024-07-04
Owner
  • STMICROELECTRONICS S.r.l. (Italy)
  • STMicroelectronics International N.V. (Switzerland)
Inventor
  • Zambotti, Paolo Sergio
  • Boesch, Thomas
  • Desoli, Giuseppe
  • Betz, Wolfgang Johann
  • Siorpaes, David

Abstract

A system includes a host processor, a memory, a hardware accelerator and a configuration controller. The host processor, in operation, controls execution of a multi-stage processing task. The memory, in operation, stores data and configuration information. The hardware accelerator, in operation preforms operations associated with stages of the multi-stage processing task. The configuration controller is coupled to the host processor, the hardware accelerator, and the memory. The configuration controller executes a linked list of configuration operations, for example, under control of a finite state machine. The linked list consists of configuration operations selected from a defined set of configuration operations. Executing the linked list of configuration operations configures the plurality of configuration registers of the hardware accelerator to control operations of the hardware accelerator associated with a stage of the multi-stage processing task. The configuration controller may retrieve the linked list from the memory via a high-speed data bus.

IPC Classes  ?

65.

IN-MEMORY COMPUTATION DEVICE HAVING AN IMPROVED CURRENT READING CIRCUIT AND CONTROL METHOD

      
Application Number 18543847
Status Pending
Filing Date 2023-12-18
First Publication Date 2024-06-27
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Zurla, Riccardo
  • Pasotti, Marco
  • Carissimi, Marcella
  • Cabrini, Alessandro

Abstract

A word line activation unit of an in-memory computation generates activation signals as a function of an input value. The in-memory computation device includes a memory array with a plurality of memory cells (each storing a computational weight) coupled to a bit line and each to a word line and a digital detector. A cell current flows through each memory cell as a function of the activation signal and the computational weight and a bit line current is generated as a function of a summation of the cell currents. The digital detector performs successive iterations on the bit line current. In each iteration: an integration stage generates an integration signal indicative of a time integral of the bit line current, and resets the integration signal when the integration signal reaches a threshold; and the counter stage updates the output signal in response to the integration signal reaching the threshold.

IPC Classes  ?

  • G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or
  • G06F 17/16 - Matrix or vector computation

66.

IN-MEMORY COMPUTATION DEVICE HAVING IMPROVED DRIFT COMPENSATION

      
Application Number 18542938
Status Pending
Filing Date 2023-12-18
First Publication Date 2024-06-27
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Carissimi, Marcella
  • Pasotti, Marco
  • Zurla, Riccardo

Abstract

An in-memory computation device includes a word line activation circuit that receives an input signal indicative of input values and provides activation signals each as a function of the input value. The in-memory computation device further includes a memory array, a biasing circuit generating a bias voltage and a digital detector. The memory array has memory cells coupled to a bit line and each to a word line. Each memory cell stores a computational weight. In response to an activation signal, a cell current flows through each memory cell as a function of the bias voltage, the activation signal and the computational weight. A bit line current flows through the bit line as a function of a summation of the cell currents. The digital detector is coupled to the bit line, samples the bit line current and, in response, provides an output signal.

IPC Classes  ?

  • G11C 7/22 - Read-write [R-W] timing or clocking circuitsRead-write [R-W] control signal generators or management
  • G11C 7/12 - Bit line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, equalising circuits, for bit lines
  • G11C 8/08 - Word line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, for word lines

67.

PHASE-LOCKED LOOP CIRCUIT, CORRESPONDING RADAR SENSOR, VEHICLE AND METHOD OF OPERATION

      
Application Number 18594456
Status Pending
Filing Date 2024-03-04
First Publication Date 2024-06-27
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Finocchiaro, Alessandro
  • Parisi, Alessandro
  • Cavarra, Andrea
  • Papotto, Giuseppe
  • Palmisano, Giuseppe

Abstract

A circuit includes a phase-frequency-detector generating first and second digital control signals indicative of phase differences between an input reference-signal and an output-signal, a charge-pump generating a control-signal based upon the first and second digital control signals, and an oscillator-circuit. The oscillator-circuit includes an active core coupled between first and second nodes, with a tunable resonant circuit a set of capacitances selectively connected between the first and second nodes, wherein a tap between the first and second variable capacitances receives the control-signal for tuning the tunable resonant circuit. A timer-circuit generates a timing-signal based upon the input reference-signal and a reset-signal. A calibration-circuit controls which capacitances of the set of capacitances are connected between the first and second nodes, in response to the timing-signal and a comparison between a threshold and a voltage-signal that is based upon auxiliary pulsed currents generated based upon the first and second digital control signals.

IPC Classes  ?

  • G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
  • G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles
  • H03B 5/12 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
  • H03L 7/193 - Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number the frequency divider/counter comprising a commutable pre-divider, e.g. a two modulus divider

68.

METHOD OF OPERATING HARD DISK DRIVES, CORRESPONDING HARD DISK DRIVE AND PROCESSING DEVICE

      
Application Number 18597484
Status Pending
Filing Date 2024-03-06
First Publication Date 2024-06-27
Owner
  • STMicroelectronics KK (Japan)
  • STMicroelectronics S.r. l. (Italy)
Inventor
  • Ferrari, Marco
  • Betta, Davide
  • Tognoli, Diego
  • Trabattoni, Roberto

Abstract

In accordance with an embodiment, a hard disk drive includes voice coil motors (VCMs) coupled to respective control units configured to drive retract an operation of the VCMs in the hard disk drive. The retract operation of the VCMs includes a sequence of retract steps. The control units are allotted respective time slots for communication over a communication line with the respective time slots synchronized via the common clock line, and are configured to drive sequences of retract steps of the VCMs in the hard disk drive in a timed relationship.

IPC Classes  ?

69.

METHOD FOR REMOTE PROVISIONING OF SOFTWARE MODULES IN INTEGRATED CIRCUIT CARDS, CORRESPONDING APPARATUS AND COMPUTER PROGRAM PRODUCT

      
Application Number 18599642
Status Pending
Filing Date 2024-03-08
First Publication Date 2024-06-27
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Alfarano, Marco
  • Massascusa, Sofia

Abstract

In an embodiment the method a includes performing, by an integrated circuit (IC) card hosted in a local equipment, authentication with a contactless subscriber device when the subscriber device is within a communication range of a contactless interface of the local equipment, receiving, by the IC card, an identifier (SID) identifying a software module from the subscriber device, the software module configured to enable a subscription profile for a mobile network operator, performing a checking operation at the IC card whether the SID matches a software module identifier stored in the IC card and selectively performing one of downloading the software module to the IC card, enabling the software module at the IC card or disabling the software module at the IC card as a result of performing the checking operation.

IPC Classes  ?

  • H04W 12/47 - Security arrangements using identity modules using near field communication [NFC] or radio frequency identification [RFID] modules
  • G06F 21/12 - Protecting executable software
  • H04W 12/48 - Security arrangements using identity modules using secure binding, e.g. securely binding identity modules to devices, services or applications
  • H04W 12/65 - Environment-dependent, e.g. using captured environmental data

70.

DRIVER CIRCUIT, CORRESPONDING LASER-DRIVING DEVICE, LASER LIGHTING MODULE, LIDAR APPARATUS AND METHODS OF OPERATION

      
Application Number 18533585
Status Pending
Filing Date 2023-12-08
First Publication Date 2024-06-20
Owner
  • STMicroelectronics (Rousset) SAS (France)
  • STMicroelectronis S.r.l. (Italy)
Inventor
  • Letor, Romeo
  • Russo, Alfio
  • Lecci, Nadia
  • Pizzardi, Antonio Filippo Massimo
  • Pavlin, Antoine
  • Poletto, Vanni
  • Brera, Marco
  • Bianchi, Simone

Abstract

In a driver circuit couplable to laser diodes, a semiconductor body has a first surface. First and second control switches have drains coupled to a drain metallization, which is couplable to a power supply line, and sources coupled to respective first and second source metallizations, which are couplable to cathode terminals of the laser diodes and a reference node. A plurality of high-side switches have drains coupled to the drain metallization and sources coupled to third source metallizations, each of which is coupled to a respective drive output node for driving an anode terminal of a respective laser diode. The drain, first, second and third source metallizations face the first surface of the semiconductor body, which faces the laser diodes. The second and third source metallizations are aligned with one another and are superimposed to the respective source terminals of the second control switch and high-side switches.

IPC Classes  ?

  • H01S 5/026 - Monolithically integrated components, e.g. waveguides, monitoring photo-detectors or drivers
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • H01S 5/02326 - Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
  • H01S 5/40 - Arrangement of two or more semiconductor lasers, not provided for in groups

71.

METHOD OF PRODUCING ELECTRONIC COMPONENTS, CORRESPONDING ELECTRONIC COMPONENT

      
Application Number 18594699
Status Pending
Filing Date 2024-03-04
First Publication Date 2024-06-20
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Marchisi, Fabio

Abstract

A method of producing electronic components including at least one circuit having coupled therewith electrical connections including metallic wire bondable surfaces encased in a packaging, the method including bonding stud bumps, in particular copper stud bumps, at determined areas of said wire bondable surfaces.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

72.

Packaged stackable electronic power device for surface mounting and circuit arrangement

      
Application Number 18395122
Grant Number 12230555
Status In Force
Filing Date 2023-12-22
First Publication Date 2024-06-20
Grant Date 2025-02-18
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Stella, Cristiano Gianluca
  • Coppone, Fabio Vito
  • Salamone, Francesco

Abstract

A power device for surface mounting has a leadframe including a die-attach support and at least one first lead and one second lead. A die, of semiconductor material, is bonded to the die-attach support, and a package, of insulating material and parallelepipedal shape, surrounds the die and at least in part the die-attach support and has a package height. The first and second leads have outer portions extending outside the package, from two opposite lateral surfaces of the package. The outer portions of the leads have lead heights greater than the package height, extend throughout the height of the package, and have respective portions projecting from the first base.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

73.

METHOD TO PROVIDE A TIME-OF-FLIGHT ESTIMATE

      
Application Number 18532939
Status Pending
Filing Date 2023-12-07
First Publication Date 2024-06-20
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Ruggiero, Davide
  • Schiano Lo Moriello, Rosario

Abstract

Method to provide a TOF estimate by a TOF device. The method comprises: generating an electric echo signal indicative of an ultrasonic echo signal returned by a target body by the ultrasonic source signal; determining an envelope signal indicative of an envelope of the electric echo signal; generating a first TOF estimate by processing the electric echo signal; determining an envelope signal portion of the envelope signal based on a non-PSOA hyperparameter; and generating a second TOF estimate by processing the envelope signal portion through PSOA, the second TOF estimate having a measurement accuracy value greater than that of the first TOF estimate. PSOA is optimized based on a PSOA hyperparameter set. The non-PSOA hyperparameter and the PSOA hyperparameter set are selected among a plurality of choices based on the first TOF estimate, so as to obtain the second TOF estimate which has greater accuracy than the first TOF estimate.

IPC Classes  ?

  • G01S 7/52 - Details of systems according to groups , , of systems according to group

74.

PROCESS FOR MANUFACTURING A MICRO-ELECTRO-MECHANICAL DEVICE, AND MEMS DEVICE

      
Application Number 18590533
Status Pending
Filing Date 2024-02-28
First Publication Date 2024-06-20
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Allegato, Giorgio
  • Corso, Lorenzo
  • Gelmi, Ilaria
  • Valzasina, Carlo

Abstract

A process for manufacturing a MEMS device includes forming a first structural layer of a first thickness on a substrate. First trenches are formed through the first structural layer, and masking regions separated by first openings are formed on the first structural layer. A second structural layer of a second thickness is formed on the first structural layer in direct contact with the first structural layer at the first openings and forms, together with the first structural layer, thick structural regions having a third thickness equal to the sum of the first and the second thicknesses. A plurality of second trenches are formed through the second structural layer, over the masking regions, and third trenches are formed through the first and the second structural layers by removing selective portions of the thick structural regions.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

75.

PACKAGED POWER ELECTRONIC DEVICE, IN PARTICULAR BRIDGE CIRCUIT COMPRISING POWER TRANSISTORS, AND ASSEMBLING PROCESS THEREOF

      
Application Number 18395137
Status Pending
Filing Date 2023-12-22
First Publication Date 2024-06-20
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Stella, Cristiano Gianluca
  • Salamone, Francesco

Abstract

The device has a first support element forming a first thermal dissipation surface and carrying a first power component; a second support element forming a second thermal dissipation surface and carrying a second power component, a first contacting element superimposed to the first power component; a second contacting element superimposed to the second power component; a plurality of leads electrically coupled with the power components through the first and/or the second support elements; and a thermally conductive body arranged between the first and the second contacting elements. The first and the second support elements and the first and the second contacting elements are formed by electrically insulating and thermally conductive multilayers.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H01L 23/373 - Cooling facilitated by selection of materials for the device
  • H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass

76.

MANUFACTURING METHOD OF AN ELEMENT OF AN ELECTRONIC DEVICE HAVING IMPROVED RELIABILITY, AND RELATED ELEMENT, ELECTRONIC DEVICE AND ELECTRONIC APPARATUS

      
Application Number 18395174
Status Pending
Filing Date 2023-12-22
First Publication Date 2024-06-20
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rascuna', Simone
  • Saggio, Mario Giuseppe

Abstract

A manufacturing method of an anchorage element of a passivation layer, comprising: forming, in a semiconductor body made of SiC and at a distance from a top surface of the semiconductor body, a first implanted region having, along a first axis, a first maximum dimension; forming, in the semiconductor body, a second implanted region, which is superimposed to the first implanted region and has, along the first axis, a second maximum dimension smaller than the first maximum dimension; carrying out a process of thermal oxidation of the first implanted region and second implanted region to form an oxidized region; removing said oxidized region to form a cavity; and forming, on the top surface, the passivation layer protruding into the cavity to form said anchorage element fixing the passivation layer to the semiconductor body.

IPC Classes  ?

  • H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/66 - Types of semiconductor device

77.

Device and method for measuring the flow of a fluid in a tube moved by a peristaltic pump

      
Application Number 18584642
Grant Number 12196193
Status In Force
Filing Date 2024-02-22
First Publication Date 2024-06-13
Grant Date 2025-01-14
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Dellutri, Michele Alessio
  • Passaniti, Fabio
  • Alessi, Enrico Rosario

Abstract

Various embodiments provide a device for measuring the flow of fluid inside a tube moved by a peristaltic pump is provided with: a detection electrode arrangement coupled to the tube to detect an electrostatic charge variation originated by the mechanical action of the peristaltic pump on the tube; a signal processing stage, electrically coupled to the detection electrode arrangement to generate an electrical charge variation signal; and a processing unit, coupled to the signal processing stage to receive and process in the frequency domain the electrical charge variation signal to obtain information on the flow of a fluid that flows through the tube based on the analysis of frequency characteristics of the electrical charge variation signal.

IPC Classes  ?

  • F04B 43/12 - Machines, pumps, or pumping installations having flexible working members having peristaltic action
  • F04B 49/06 - Control using electricity

78.

VOLTAGE MULTIPLE CIRCUIT

      
Application Number 18432576
Status Pending
Filing Date 2024-02-05
First Publication Date 2024-06-13
Owner STMicroelectronics S.r.l. (Italy)
Inventor Pulvirenti, Francesco

Abstract

In an embodiment, a voltage multiplier comprises an input node, an output node, and first and second control nodes for receiving first and second clock signals defining two commutation states. An ordered sequence of intermediate nodes is coupled between the input and output nodes and includes two ordered sub-sequences. Capacitors are coupled: between each odd intermediate node in the first sub-sequence and the first control node; between each even intermediate node in the first sub-sequence and the second control node; between each odd intermediate node in the second sub-sequence and a corresponding odd intermediate node in the first sub-sequence; and between each even intermediate node in the second sub-sequence and a corresponding even intermediate node in the first sub-sequence. The circuit comprises selectively conductive electronic components coupled to the intermediate nodes.

IPC Classes  ?

  • H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode

79.

SYSTEM AND METHOD FOR AUTOMATIC RECOGNITION OF THE GESTURE OF BRINGING AN ELECTRONIC DEVICE TO THE EAR

      
Application Number 18512944
Status Pending
Filing Date 2023-11-17
First Publication Date 2024-06-13
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rizzardini, Federico
  • Bracco, Lorenzo

Abstract

A recognition system for recognition of a gesture of bringing an electronic device, of a mobile or wearable type, to a user's ear, designed to be integrated in the electronic device and having: a movement sensor, configured to provide a movement signal indicative of the movement of the electronic device; an electrostatic charge variation sensor, configured to provide a charge variation signal associated with the movement; a processing module, operatively coupled to the movement sensor and to the electrostatic charge variation sensor and configured to perform a joint processing of the movement signal and the charge variation signal for the recognition of the gesture.

IPC Classes  ?

  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer

80.

TIME DIVISION MULTIPLEXING HUB

      
Application Number 18443117
Status Pending
Filing Date 2024-02-15
First Publication Date 2024-06-13
Owner STMICROELECTRONICS S.R.L. (Italy)
Inventor
  • Quartiroli, Matteo
  • Rizzo Piazza Roncoroni, Alessandra Maria

Abstract

An integrated circuit includes a control circuit, a primary sensor device coupled to the control circuit, and a plurality of groups of secondary sensor devices coupled to the primary sensor device. The primary sensor device receives a master clock signal from the control device and outputs, to each group of secondary sensor devices, a respective secondary clock signal with a frequency lower than the primary clock signal. The primary sensor device generates primary sensor data. The primary sensor device receives secondary sensor data from each group of secondary sensor devices. The primary sensor device combines the primary sensor data and all of the secondary sensor data into a sensor data stream with a time division-multiplexing scheme and outputs the sensor data stream to the control circuit.

IPC Classes  ?

81.

OVERVOLTAGE PROTECTION DEVICE

      
Application Number 18444494
Status Pending
Filing Date 2024-02-16
First Publication Date 2024-06-13
Owner
  • STMICROELECTRONICS S.r.l. (Italy)
  • STMICROELECTRONICS (TOURS) SAS (France)
Inventor
  • Simonnet, Jean-Michel
  • Ngo, Sophie
  • Rascunà, Simone

Abstract

Overvoltage protection circuits are provided. In some embodiments, an overvoltage protection circuit includes a first diode made of a first semiconductor material having a bandgap width greater than that of silicon. A second diode is included and is electrically cross-coupled with the first diode. The second diode is made of a second semiconductor material different from the first semiconductor material.

IPC Classes  ?

  • H01L 27/02 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
  • H01L 29/04 - Semiconductor bodies characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
  • H01L 29/868 - PIN diodes
  • H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

82.

PASSIVE INFRARED SENSOR WITH PATTERNED LENS

      
Application Number 18061918
Status Pending
Filing Date 2022-12-05
First Publication Date 2024-06-06
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Alessi, Enrico Rosario
  • Passaniti, Fabio
  • Licciardello, Antonella
  • Baldacchino, Daniele

Abstract

A sensor device includes a passive infrared sensor, a control circuit, and a lens that directs infrared radiation onto the passive infrared sensor. The lens includes an obstruction that asymmetrically blocks transmission of infrared radiation through the lens. The control circuit is configured to determine the direction of crossing of individuals passing in front of the sensor device based on sensor signals from the passive infrared sensor.

IPC Classes  ?

  • G01J 5/0806 - Focusing or collimating elements, e.g. lenses or concave mirrors
  • G01J 5/05 - Means for preventing contamination of the components of the optical systemMeans for preventing obstruction of the radiation path
  • G01J 5/068 - Arrangements for eliminating effects of disturbing radiationArrangements for compensating changes in sensitivity by controlling parameters other than temperature

83.

WIDE BAND GAP SEMICONDUCTOR ELECTRONIC DEVICE HAVING A JUNCTION-BARRIER SCHOTTKY DIODE

      
Application Number 18443143
Status Pending
Filing Date 2024-02-15
First Publication Date 2024-06-06
Owner STMICROELECTRONICS S.R.L. (Italy)
Inventor Rascuná, Simone

Abstract

The vertical-conduction electronic power device is formed by a body of wide band gap semiconductor which has a first conductivity type and has a surface, and is formed by a drift region and by a plurality of surface portions delimited by the surface. The electronic device is further formed by a plurality of first implanted regions having a second conductivity type, which extend into the drift region from the surface, and by a plurality of metal portions, which are arranged on the surface. Each metal portion is in Schottky contact with a respective surface portion of the plurality of surface portions so as to form a plurality of Schottky diodes formed by first Schottky diodes and second Schottky diodes, wherein the first Schottky diodes have, at equilibrium, a Schottky barrier having a height different from that of the second Schottky diodes.

IPC Classes  ?

  • H01L 29/872 - Schottky diodes
  • H01L 21/265 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/861 - Diodes

84.

CIRCUIT TO TRANSFER A SIGNAL BETWEEN DIFFERENT VOLTAGE DOMAINS AND CORRESPONDING METHOD TO TRANSFER A SIGNAL

      
Application Number 18530080
Status Pending
Filing Date 2023-12-05
First Publication Date 2024-06-06
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Bognanni, Fabrizio
  • Caggegi, Giovanni
  • Cantone, Giuseppe
  • Marano, Vincenzo
  • Pulvirenti, Francesco

Abstract

A circuit includes a current path and a negative bootstrap circuitry coupled to the current path. The current path is coupled between a floating voltage and a reference ground, and includes a current generator coupled through a resistor to the floating voltage at a first node of the current generator. The current generator is controlled by a pulse signal. The negative bootstrap circuitry includes a pump capacitor coupled to a second node of the current generator and to the reference ground. The pump capacitor is configured to provide a negative voltage at the second node of the current generator based on the pulse signal.

IPC Classes  ?

  • H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
  • H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode
  • H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
  • H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors

85.

METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES AND CORRESPONDING DEVICE

      
Application Number 18437899
Status Pending
Filing Date 2024-02-09
First Publication Date 2024-06-06
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Magni, Pierangelo
  • Derai, Michele

Abstract

A semiconductor chip or die is mounted at a position on a support substrate. A light-permeable laser direct structuring (LDS) material is then molded onto the semiconductor chip positioned on the support substrate. The semiconductor chip is visible through the LDS material. Laser beam energy is directed to selected spatial locations of the LDS material to structure in the LDS material a pattern of structured formations corresponding to the locations of conductive lines and vias for making electrical connection to the semiconductor chip. The spatial locations of the LDS material to which laser beam energy is directed are selected as a function of the position the semiconductor chip which is visible through the LDS material, thus countering undesired effects of positioning offset of the chip on the substrate.

IPC Classes  ?

  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/18 - Fillings characterised by the material, its physical or chemical properties, or its arrangement within the complete device
  • H01L 23/498 - Leads on insulating substrates

86.

MICROELECTROMECHANICAL DEVICE WITH TEST STRUCTURE, TEST EQUIPMENT FOR TESTING MICROELECTROMECHANICAL DEVICES AND METHOD FOR MANUFACTURING A MICROELECTROMECHANICAL DEVICE

      
Application Number 18515075
Status Pending
Filing Date 2023-11-20
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Guerinoni, Luca
  • Fedeli, Patrick
  • Falorni, Luca Giuseppe

Abstract

A microelectromechanical device includes: a support body; at least one movable mass of semiconductor material, elastically constrained to the support body so as to be able to oscillate; fixed detection electrodes rigidly connected to the support body and capacitively coupled to the at least one movable mass; and at least one test structure of semiconductor material, rigidly connected to the support body and distinct from the fixed detection electrodes. The test structure is capacitively coupled to the at least one movable mass and is configured to apply electrostatic forces to the at least one movable mass in response to a voltage between the test structure and the at least one movable mass.

IPC Classes  ?

  • G01C 19/5712 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis the devices involving a micromechanical structure
  • G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass

87.

HIGH VOLTAGE SEMICONDUCTOR DEVICE HAVING A DEEP TRENCH INSULATION AND MANUFACTURING PROCESS

      
Application Number 18520894
Status Pending
Filing Date 2023-11-28
First Publication Date 2024-05-30
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Lago, Emanuele
  • Malagnino, Nunzia
  • Riccardi, Damiano

Abstract

A body of semiconductor material has a surface and accommodates an active area, conductive regions, a first deep insulation structure extending in the active area from the surface of the body in a first trench, and a second deep insulation structure extending in the active area from the surface of the body in a second trench and surrounding the conductive regions. The first deep insulation structure has insulation walls surrounding a conductive filling portion. The second deep insulation structure has a solid insulating region filling the second trench. The first deep insulation region has a first width and a first depth and the second deep insulation structure has a second width and a second depth. The second width is smaller than the first width and the second depth is smaller than the first depth.

IPC Classes  ?

88.

Dynamic gravity vector estimation for memory constrained devices

      
Application Number 18059214
Grant Number 12164705
Status In Force
Filing Date 2022-11-28
First Publication Date 2024-05-30
Grant Date 2024-12-10
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rizzardini, Federico
  • Bracco, Lorenzo

Abstract

A device includes a memory and processing circuitry coupled to the memory. The processing circuitry, in operation: estimates an angular rate of change and determines a rotational versor based on the rotational data; and estimates a gravity vector based on the angular rate of change and the rotational versor. The processing circuitry generates a dynamic gravity vector based on the estimated gravity vector, a correction factor and an estimated error in estimated gravity vector. The processing circuitry estimates a linear acceleration and determines an acceleration versor based on the acceleration data, and determines the correction factor based on the linear acceleration. The processing circuitry estimates the error in the estimated gravity vector based on the acceleration versor.

IPC Classes  ?

  • G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
  • G06F 3/0346 - Pointing devices displaced or positioned by the userAccessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

89.

CIRCUIT FOR CONTROLLING A RESISTIVE CIRCUIT

      
Application Number 18432776
Status Pending
Filing Date 2024-02-05
First Publication Date 2024-05-30
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Mazzini, Marco
  • Ciuffolini, Marco
  • Mammei, Enrico
  • Pulici, Paolo

Abstract

In accordance with an embodiment, a circuit is configured to vary an intensity of a drive current of a resistive heater element based on the digital control signal. The circuit includes and output circuit configured to control a respective slew rate and an electric energy dissipated in the resistive heater element independently of a resistance value of the resistive heater element.

IPC Classes  ?

  • G11B 5/012 - Recording on, or reproducing or erasing from, magnetic disks
  • G05F 1/56 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
  • H05B 3/22 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
  • G11B 5/00 - Recording by magnetisation or demagnetisation of a record carrierReproducing by magnetic meansRecord carriers therefor

90.

ISOLATED DRIVER DEVICE, CORRESPONDING ELECTRONIC SYSTEM AND METHOD OF TRANSMITTING A DATA SIGNAL ACROSS A GALVANIC ISOLATION BARRIER

      
Application Number 18508011
Status Pending
Filing Date 2023-11-13
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Curina, Carlo
  • Bendotti, Valerio

Abstract

In an electronic device, a pulse generator receives an input signal and a clock signal and produces a transmission signal that includes a pulse following each edge of the input signal and of the clock signal. The pulse is low when the input signal is low and high when the input signal is high. A transmitter produces, at its two output nodes, a replica of the transmission signal and the complement of the transmission signal. A galvanic isolation barrier is coupled to the output nodes of the transmitter and produces a differential signal that includes a positive spike at each rising edge of the transmission signal and a negative spike at each falling edge of the transmission signal.

IPC Classes  ?

  • H03K 17/605 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being bipolar transistors with galvanic isolation between the control circuit and the output circuit
  • H03K 3/037 - Bistable circuits
  • H03K 5/133 - Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals using a chain of active-delay devices
  • H03K 19/096 - Synchronous circuits, i.e. using clock signals

91.

METHOD OF MANUFACTURING SUBSTRATES FOR SEMICONDUCTOR DEVICES, CORRESPONDING PRODUCT AND SEMICONDUCTOR DEVICE

      
Application Number 18516707
Status Pending
Filing Date 2023-11-21
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Tiziani, Roberto
  • Mazzola, Mauro

Abstract

Electrically insulating material such as an epoxy resin is molded onto a sculptured, electrically conductive leadframe structure comprising a pattern of electrically conductive formations. The electrically insulating material penetrates into spaces between electrically conductive formations in the pattern of electrically conductive formations to provide a pre-molded leadframe structure configured to have at least one semiconductor die arranged thereon. The pre-molded leadframe structure has opposed first and second surfaces and a pre-molded leadframe thickness between the first surface and the second surface. The sculptured, electrically conductive leadframe structure comprises one or more connection formations connected with electrically conductive formations in the pattern of electrically conductive formations. The connection formation or formations have a first thickness equal to the thickness between the first surface and the second surface. The thickness of the connection formation or formations is reduced from the first thickness to a second, reduced uniform thickness with exposed wettable flanks formed in the electrically conductive formations facing the connection formation or formations with reduced thickness.

IPC Classes  ?

  • H01L 23/495 - Lead-frames
  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

92.

METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES AND CORRESPONDING SEMICONDUCTOR DEVICE

      
Application Number 18516745
Status Pending
Filing Date 2023-11-21
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Rovitto, Marco

Abstract

One or more semiconductor dice are arranged on a die pad of a leadframe having an array of electrically conductive leads around the die pad. A pattern of electrically conductive wires is provided to couple the semiconductor die or dice with electrically conductive leads in the array around the die pad. An encapsulation of insulating material is provided to encapsulate the semiconductor die or dice arranged on the die pad and the pattern of electrically conductive wires. Providing the encapsulation comprises: a first encapsulation step wherein a first mass of encapsulation material is transferred onto the semiconductor die or dice arranged on the die pad and onto the pattern of electrically conductive wires to form a core portion of the encapsulation that fully encapsulates the die or dice and the electrically conductive wires, that are thus retained in position by the first mass of encapsulation material, and a second encapsulation step wherein a second mass of encapsulation material is molded onto the core portion of the encapsulation to provide a shell portion of the encapsulation around the core portion of the encapsulation.

IPC Classes  ?

  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 23/495 - Lead-frames

93.

HEMT TRANSISTOR OF THE NORMALLY OFF TYPE INCLUDING A TRENCH CONTAINING A GATE REGION AND FORMING AT LEAST ONE STEP, AND CORRESPONDING MANUFACTURING METHOD

      
Application Number 18530050
Status Pending
Filing Date 2023-12-05
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Iucolano, Ferdinando
  • Patti, Alfonso
  • Chini, Alessandro

Abstract

A method forms an HEMT transistor of the normally off type, including: a semiconductor heterostructure, which comprises at least one first layer and one second layer, the second layer being set on top of the first layer; a trench, which extends through the second layer and a portion of the first layer; a gate region of conductive material, which extends in the trench; and a dielectric region, which extends in the trench, coats the gate region, and contacts the semiconductor heterostructure. A part of the trench is delimited laterally by a lateral structure that forms at least one first step. The semiconductor heterostructure forms a first edge and a second edge of the first step, the first edge being formed by the first layer.

IPC Classes  ?

  • H01L 29/66 - Types of semiconductor device
  • H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 29/205 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds in different semiconductor regions
  • H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
  • H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT

94.

Scalable MPS device based on SiC

      
Application Number 18532975
Grant Number 12224321
Status In Force
Filing Date 2023-12-07
First Publication Date 2024-05-30
Grant Date 2025-02-11
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Rascuná, Simone
  • Saggio, Mario Giuseppe

Abstract

Merged-PiN-Schottky, MPS, device comprising: a substrate of SiC with a first conductivity; a drift layer of SiC with the first conductivity, on the substrate; an implanted region with a second conductivity, extending at a top surface of the drift layer to form a junction-barrier, JB, diode with the substrate; and a first electrical terminal in ohmic contact with the implanted region and in direct contact with the top surface to form a Schottky diode with the drift layer. The JB diode and the Schottky diode are alternated to each other along an axis: the JB diode has a minimum width parallel to the axis with a first value, and the Schottky diode has a maximum width parallel to the axis with a second value smaller than, or equal to, the first value. A breakdown voltage of the MPS device is greater than, or equal to, 115% of a maximum working voltage of the MPS device in an inhibition state.

IPC Classes  ?

  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/66 - Types of semiconductor device
  • H01L 29/872 - Schottky diodes

95.

IN-MEMORY COMPUTATION SYSTEM WITH COMPACT STORAGE OF SIGNED COMPUTATIONAL WEIGHT DATA

      
Application Number 17994817
Status Pending
Filing Date 2022-11-28
First Publication Date 2024-05-30
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Carissimi, Marcella
  • Zambotti, Paolo Sergio
  • Zurla, Riccardo

Abstract

An IMC circuit includes a memory cells arranged in matrix. Computational weights for an IMC operation are stored in groups of cells. Each row of groups of cells includes a positive and negative word linen. Each column of groups of cells includes a bit line. The IMC operation includes a first elaboration where a word line signal is applied to the positive/negative word line of the group of cells depending on the positive/negative sign, respectively, of the coefficient data, with a positive MAC output on the bit line. In a second elaboration, a word line signal is applied to the negative/positive word line of the group of cells depending on the positive/negative sign, respectively, of the coefficient data, with a negative MAC output on the bit line. The IMC operation result is obtained from a difference between the positive and negative MAC operations.

IPC Classes  ?

  • G06F 7/544 - Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state deviceMethods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using unspecified devices for evaluating functions by calculation
  • G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or

96.

PALLADIUM PLATING CATALYST LAYER BY LASER INDUCED FORWARD TRANSFER

      
Application Number 18060481
Status Pending
Filing Date 2022-11-30
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Crema, Paolo

Abstract

The present disclosure is directed to a method of forming a conductive trace in a substrate. A pattern of the trace is formed in the substrate by a laser machining technique. The pattern of the trace is covered by palladium colloid. The palladium colloid is transferred to the patterned substrate by a laser-induced forward transfer (LIFT) technique. The palladium colloid is converted to a palladium plating catalyst layer by a palladium acceleration process. The palladium plating catalyst layer provides a sufficient catalyst to grow a metal seeding layer by an electroless copper deposition technique. In addition, the palladium plating catalyst layer includes portions of tin material which increases adhesion of the metal seeding layer into the substrate. After growing the metal seeding layer, the pattern of the trace is filled by a copper layer through an electrochemical deposition technique.

IPC Classes  ?

  • H05K 3/10 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
  • C23F 17/00 - Multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
  • C25D 5/54 - Electroplating of non-metallic surfaces
  • H05K 3/18 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material

97.

CONFIGURABLE DIGITAL BLOCK FOR INFRARED SENSORS

      
Application Number 18060501
Status Pending
Filing Date 2022-11-30
First Publication Date 2024-05-30
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor
  • Gandolfi, Luca
  • Garozzo, Ugo

Abstract

A sensor device includes an infrared sensor configured to generate sensor data. The sensor device also includes a configurable digital analysis block. The configurable digital analysis block is configured to generate classification data based on the sensor data. The configurable digital analysis block includes a plurality of selectable analysis blocks that can be selectively included in generating the classification data.

IPC Classes  ?

  • G01J 5/02 - Constructional details
  • G01J 5/24 - Use of specially adapted circuits, e.g. bridge circuits

98.

VEHICLE COMMUNICATION NETWORK

      
Application Number 18509618
Status Pending
Filing Date 2023-11-15
First Publication Date 2024-05-23
Owner
  • STMicroelectronics S.r.l. (Italy)
  • STMicroelectronics Application GmbH (Germany)
  • STMicroelectronics (Alps) SAS (France)
Inventor
  • Rennig, Fred
  • Torrisi, Giovanni Luca
  • Gaertner, Manuel
  • Sirito-Olivier, Philippe
  • Burkhardt, Fritz
  • Occhipinti, Aldo

Abstract

A vehicle communication network includes electronic control units arranged in a plurality of groups. The electronic control units pertaining to the same group are coupled to each other via a respective dedicated communication bus. A central controller is coupled to the plurality of local controllers. Electrical loads are coupled to one of the electronic control units. Each of the electronic control units is configured to decode the received CAN frame to produce the actuation signal for a respective electrical load in response to a CAN frame being received from the respective local controller and transmit a CAN wake-up frame to the respective local controller and encode the feedback signal into a CAN frame for transmission to the respective local controller in response to the feedback signal being received from the respective electrical load.

IPC Classes  ?

99.

SILICON CARBIDE INTEGRATED DEVICE AND METHOD FOR MANUFACTURING AN INTEGRATED DEVICE

      
Application Number 18506777
Status Pending
Filing Date 2023-11-10
First Publication Date 2024-05-23
Owner STMICROELECTRONICS S.r.l. (Italy)
Inventor Fragapane, Leonardo

Abstract

An integrated device includes: a semiconductor structural layer, including silicon carbide and having a first conductivity type; a power device integrated in the structural layer; and an edge termination structure, extending in a ring around the power device and having a second conductivity type. The edge termination structure includes a plurality of ring structures each arranged around the power device and in contiguous pairs. At least a first one of the ring structures comprises a transition region contiguous to a second one of the ring structures. The transition region includes connection regions, having the second conductivity type, connected to the second one of the ring structures and alternating with charge control regions having the first conductivity type.

IPC Classes  ?

  • H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
  • H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
  • H01L 29/40 - Electrodes
  • H01L 29/66 - Types of semiconductor device

100.

Asynchronous controller for processing unit

      
Application Number 18056012
Grant Number 12135668
Status In Force
Filing Date 2022-11-16
First Publication Date 2024-05-16
Grant Date 2024-11-05
Owner STMicroelectronics S.r.l. (Italy)
Inventor
  • Castellano, Marco
  • Bruni, Francesco
  • Gandolfi, Luca
  • Leo, Marco

Abstract

A processor includes a synchronous circuit including a plurality of processing stages, wherein each processing stage includes a selection data bus; and an asynchronous circuit coupled to each selection data bus, wherein the asynchronous circuit includes an asynchronous state machine whose states correspond to a process phase or a plurality of circuits, wherein the asynchronous circuit further includes a selectable delay circuit whose delay is determined by a present state of the asynchronous state machine, and wherein the asynchronous circuit is configured for generating a plurality of processing stage clock signals each having a selectable delay provided by the selectable delay circuit.

IPC Classes  ?

  • G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
  • G06F 13/40 - Bus structure
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