Aehr Test Systems

United States of America

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2026 September (MTD) 1
2026 August 5
2026 June 1
2026 (YTD) 7
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IPC Class
G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer 61
G01R 1/04 - HousingsSupporting membersArrangements of terminals 27
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere 13
H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches 13
G01R 1/067 - Measuring probes 11
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Status
Pending 21
Registered / In Force 59

1.

METHOD AND SYSTEM FOR THERMAL CONTROL OF DEVICES IN AN ELECTRONICS TESTER

      
Application Number 19676189
Status Pending
Filing Date 2026-05-13
First Publication Date 2026-09-17
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H10P 72/00 -
  • H10P 72/76 -
  • H10P 74/00 -
  • H10P 95/90 -

2.

ELECTRONICS TESTER

      
Application Number 19461359
Status Pending
Filing Date 2026-01-27
First Publication Date 2026-08-27
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

3.

ELECTRONICS TESTER

      
Application Number 19461365
Status Pending
Filing Date 2026-01-27
First Publication Date 2026-08-27
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

4.

ELECTRONICS TESTER

      
Application Number 19461373
Status Pending
Filing Date 2026-01-27
First Publication Date 2026-08-27
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

5.

ELECTRONICS TESTER

      
Application Number 19461347
Status Pending
Filing Date 2026-01-27
First Publication Date 2026-08-27
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

6.

METHOD AND SYSTEM FOR THERMAL CONTROL OF DEVICES IN AN ELECTRONICS TESTER

      
Application Number 19642341
Status Pending
Filing Date 2026-04-08
First Publication Date 2026-08-20
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H10P 72/00 -
  • H10P 72/76 -
  • H10P 74/00 -
  • H10P 95/90 -

7.

ELECTRONICS TESTER

      
Application Number 19461384
Status Pending
Filing Date 2026-01-27
First Publication Date 2026-06-04
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

8.

ELECTRONICS TESTER

      
Application Number US2025014825
Publication Number 2025/171153
Status In Force
Filing Date 2025-02-06
Publication Date 2025-08-14
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Sporck, Alistair N.
  • Breinlinger, Richard H.
  • Tonn, Timothy R.
  • Calderon, Alberto
  • Richmond, Ii, Donald P.

Abstract

A leakage detection circuit for connecting to a device includes an input voltage terminal, a source voltage terminal for connection to a source of the respective device, a voltage monitor terminal, a reference voltage terminal, a first switch and a second switch. The first switch has a switch terminal connected to the input voltage terminal, an output terminal connected to the source voltage terminal, and an input terminal connected to the voltage monitor terminal. The second switch has a switch terminal connected to the voltage monitor terminal, an input terminal connected to the input voltage terminal, and an output terminal connected to the reference voltage terminal.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 31/26 - Testing of individual semiconductor devices

9.

TESTER APPARATUS, TESTING METHOD AND LEAKAGE DETECTION CIRCUIT

      
Application Number 19047287
Status Pending
Filing Date 2025-02-06
First Publication Date 2025-08-07
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Sporck, Alistair N.
  • Breinlinger, Richard H.
  • Tonn, Timothy R.
  • Calderon, Alberto
  • Richmond, Ii, Donald P.

Abstract

A leakage detection circuit for connecting to a device includes an input voltage terminal, a source voltage terminal for connection to a source of the respective device, a voltage monitor terminal, a reference voltage terminal, a first switch and a second switch. The first switch has a switch terminal connected to the input voltage terminal, an output terminal connected to the source voltage terminal, and an input terminal connected to the voltage monitor terminal. The second switch has a switch terminal connected to the voltage monitor terminal, an input terminal connected to the input voltage terminal, and an output terminal connected to the reference voltage terminal.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/52 - Testing for short-circuits, leakage current or ground faults

10.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number 19091542
Status Pending
Filing Date 2025-03-26
First Publication Date 2025-07-10
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 1/067 - Measuring probes
  • G01R 1/073 - Multiple probes
  • G01R 31/26 - Testing of individual semiconductor devices
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

11.

ELECTRONICS TESTER

      
Application Number 19074157
Status Pending
Filing Date 2025-03-07
First Publication Date 2025-06-26
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson, Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

12.

ELECTRONICS TESTER

      
Application Number 19005824
Status Pending
Filing Date 2024-12-30
First Publication Date 2025-05-01
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson, Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

13.

ELECTRONICS TESTER

      
Application Number 18947530
Status Pending
Filing Date 2024-11-14
First Publication Date 2025-03-20
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

14.

ELECTRONICS TESTER

      
Application Number 18961272
Status Pending
Filing Date 2024-11-26
First Publication Date 2025-03-20
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

15.

ELECTRONICS TESTER

      
Application Number 18961287
Status Pending
Filing Date 2024-11-26
First Publication Date 2025-03-20
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R 19/10 - Measuring sum, difference, or ratio

16.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number 18957379
Status Pending
Filing Date 2024-11-22
First Publication Date 2025-03-13
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

17.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number 18957390
Status Pending
Filing Date 2024-11-22
First Publication Date 2025-03-13
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

18.

Electronics tester

      
Application Number 18917911
Grant Number 12282062
Status In Force
Filing Date 2024-10-16
First Publication Date 2025-02-06
Grant Date 2025-04-22
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson, Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

19.

Electronics tester

      
Application Number 18882050
Grant Number 12253560
Status In Force
Filing Date 2024-09-11
First Publication Date 2025-01-02
Grant Date 2025-03-18
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson, Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

20.

Method and system for thermal control of devices in electronics tester

      
Application Number 18825962
Grant Number 12265136
Status In Force
Filing Date 2024-09-05
First Publication Date 2024-12-26
Grant Date 2025-04-01
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

21.

Method and system for thermal control of devices in an electronics tester

      
Application Number 18825970
Grant Number 12292484
Status In Force
Filing Date 2024-09-05
First Publication Date 2024-12-26
Grant Date 2025-05-06
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/26 - Testing of individual semiconductor devices
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches

22.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITSMETHOD OF USE

      
Application Number 18795619
Status Pending
Filing Date 2024-08-06
First Publication Date 2024-12-12
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

23.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number 18799671
Status Pending
Filing Date 2024-08-09
First Publication Date 2024-12-05
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

24.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number 18793292
Status Pending
Filing Date 2024-08-02
First Publication Date 2024-11-28
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

25.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number 18795602
Status Pending
Filing Date 2024-08-06
First Publication Date 2024-11-28
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

26.

METHOD AND SYSTEM FOR THERMAL CONTROL OF DEVICES IN AN ELECTRONICS TESTER

      
Application Number 18648873
Status Pending
Filing Date 2024-04-29
First Publication Date 2024-09-12
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches

27.

Controlling alignment during a thermal cycle

      
Application Number 18602925
Grant Number 12298328
Status In Force
Filing Date 2024-03-12
First Publication Date 2024-07-11
Grant Date 2025-05-13
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 1/067 - Measuring probes
  • G01R 1/073 - Multiple probes
  • G01R 31/26 - Testing of individual semiconductor devices
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

28.

Electronics tester

      
Application Number 18397842
Grant Number 12584958
Status In Force
Filing Date 2023-12-27
First Publication Date 2024-07-04
Grant Date 2026-03-24
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

29.

ELECTRONICS TESTER

      
Application Number US2023086080
Publication Number 2024/145387
Status In Force
Filing Date 2023-12-27
Publication Date 2024-07-04
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Jovanovic, Jovan
  • Lindsey, Scott E.

Abstract

A tester apparatus is described of the kind having contact with terminals on a wafer for purposes of testing the wafer. A dielectric gas is used to reduce arcing between the contact. A stationary structure and a portable structure have complimentary gas interfaces that engage when the portable structure engages with the stationary structure. A gas box has a channeling block connected to a dielectric gas pressure regulator and a nitrogen gas pressure regulator and connected to a gas supply passage to selectably provide nitrogen or dielectric gas to the gas supply passage. A tray has a portion that is electrically conductive to make contact with a rear wafer terminal, vacuum passages, and each vacuum passage has an enlarged section to reduce.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components

30.

Electronics tester

      
Application Number 18488619
Grant Number 12228609
Status In Force
Filing Date 2023-10-17
First Publication Date 2024-02-08
Grant Date 2025-02-18
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson, Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

31.

Electronics tester

      
Application Number 18485716
Grant Number 12169217
Status In Force
Filing Date 2023-10-12
First Publication Date 2024-02-01
Grant Date 2024-12-17
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/20 - Preparation of articles or specimens to facilitate testing
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

32.

Electronics tester

      
Application Number 18176965
Grant Number 11821940
Status In Force
Filing Date 2023-03-01
First Publication Date 2023-06-29
Grant Date 2023-11-21
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/20 - Preparation of articles or specimens to facilitate testing
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

33.

System for testing an integrated circuit of a device and its method of use

      
Application Number 18159794
Grant Number 11977098
Status In Force
Filing Date 2023-01-26
First Publication Date 2023-06-01
Grant Date 2024-05-07
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 1/067 - Measuring probes
  • G01R 1/073 - Multiple probes
  • G01R 31/26 - Testing of individual semiconductor devices
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

34.

System for testing an integrated circuit of a device and its method of use

      
Application Number 17813298
Grant Number 12326472
Status In Force
Filing Date 2022-07-18
First Publication Date 2022-11-24
Grant Date 2025-06-10
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

35.

ELECTRONICS TESTER

      
Application Number US2021053445
Publication Number 2022/076333
Status In Force
Filing Date 2021-10-05
Publication Date 2022-04-14
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 1/06 - Measuring leadsMeasuring probes
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

36.

Electronics tester

      
Application Number 17493847
Grant Number 11835575
Status In Force
Filing Date 2021-10-05
First Publication Date 2022-04-07
Grant Date 2023-12-05
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Erickson, Ii, Gaylord Lewis
  • Jovanovic, Jovan

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

37.

Method and system for thermal control of devices in an electronics tester

      
Application Number 17532298
Grant Number 12007451
Status In Force
Filing Date 2021-11-22
First Publication Date 2022-03-17
Grant Date 2024-06-11
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

38.

Electronics tester

      
Application Number 17523646
Grant Number 11635459
Status In Force
Filing Date 2021-11-10
First Publication Date 2022-03-03
Grant Date 2023-04-25
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/20 - Preparation of articles or specimens to facilitate testing
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

39.

Pressure relief valve

      
Application Number 17391998
Grant Number 11592465
Status In Force
Filing Date 2021-08-02
First Publication Date 2021-11-25
Grant Date 2023-02-28
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/26 - Testing of individual semiconductor devices
  • G01R 1/073 - Multiple probes
  • G01R 1/067 - Measuring probes

40.

Electronics tester with power saving state

      
Application Number 16899246
Grant Number 10976362
Status In Force
Filing Date 2020-06-11
First Publication Date 2020-09-24
Grant Date 2021-04-13
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

41.

System for testing an integrated circuit of a device and its method of use

      
Application Number 16856990
Grant Number 11448695
Status In Force
Filing Date 2020-04-23
First Publication Date 2020-08-13
Grant Date 2022-09-20
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

42.

Electronics tester

      
Application Number 16831485
Grant Number 11199572
Status In Force
Filing Date 2020-03-26
First Publication Date 2020-07-23
Grant Date 2021-12-14
Owner Aehr Test Systems (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/20 - Preparation of articles or specimens to facilitate testing
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

43.

Layout of contacts

      
Application Number 29686859
Grant Number D0875579
Status In Force
Filing Date 2019-04-08
First Publication Date 2020-02-18
Grant Date 2020-02-18
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Lindsey, Scott E.
  • Steps, Steven C.
  • Hendrickson, David S.

44.

Method and system for thermal control of devices in an electronics tester

      
Application Number 16576555
Grant Number 11209497
Status In Force
Filing Date 2019-09-19
First Publication Date 2020-01-23
Grant Date 2021-12-28
Owner Aehr Test Systems (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

45.

Pressure relief valve

      
Application Number 16511816
Grant Number 11112429
Status In Force
Filing Date 2019-07-15
First Publication Date 2019-11-07
Grant Date 2021-09-07
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 1/067 - Measuring probes
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/26 - Testing of individual semiconductor devices
  • G01R 1/073 - Multiple probes

46.

Layout of contacts

      
Application Number 29612040
Grant Number D0850309
Status In Force
Filing Date 2017-07-27
First Publication Date 2019-06-04
Grant Date 2019-06-04
Owner Aehr Test Systems (USA)
Inventor
  • Jovanovic, Jovan
  • Lindsey, Scott E.
  • Steps, Steven C.
  • Hendrickson, David S.

47.

Electronics tester with current amplification

      
Application Number 16172249
Grant Number 10718808
Status In Force
Filing Date 2018-10-26
First Publication Date 2019-03-07
Grant Date 2020-07-21
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

48.

ELECTRONICS TESTER

      
Application Number US2018019934
Publication Number 2018/160557
Status In Force
Filing Date 2018-02-27
Publication Date 2018-09-07
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/00 - Details of instruments or arrangements of the types covered by groups or
  • G01R 1/02 - General constructional details
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere

49.

Electronics tester

      
Application Number 15906620
Grant Number 10649022
Status In Force
Filing Date 2018-02-27
First Publication Date 2018-09-06
Grant Date 2020-05-12
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.
  • Lindsey, Scott E.

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

IPC Classes  ?

  • G01R 31/20 - Preparation of articles or specimens to facilitate testing
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

50.

Limiting translation for consistent substrate-to-substrate contact

      
Application Number 15839707
Grant Number 10401385
Status In Force
Filing Date 2017-12-12
First Publication Date 2018-04-26
Grant Date 2019-09-03
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 1/073 - Multiple probes
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/067 - Measuring probes
  • G01R 31/26 - Testing of individual semiconductor devices

51.

Electronics tester with output circuits operable in voltage compensated power mode, driver mode or current compensated power mode

      
Application Number 15845038
Grant Number 10488437
Status In Force
Filing Date 2017-12-18
First Publication Date 2018-04-19
Grant Date 2019-11-26
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Hendrickson, David S.

Abstract

A tester is described having output circuits that are operable in either power mode or driver mode. A switching circuit connects force and sense lines to one of the output circuits when in power mode, or connects the same lines separately to the output circuits when in driver mode. A further configuration allows for power to be provided through the lines separately while detecting a measure of power through each line and correcting for unknown resistances of leads connected to the lines.

IPC Classes  ?

52.

Electronics tester with double-spiral thermal control passage in a thermal chuck

      
Application Number 15823290
Grant Number 10151793
Status In Force
Filing Date 2017-11-27
First Publication Date 2018-03-22
Grant Date 2018-12-11
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

53.

Method and system for thermal control of devices in an electronics tester

      
Application Number 15400771
Grant Number 10466292
Status In Force
Filing Date 2017-01-06
First Publication Date 2017-07-13
Grant Date 2019-11-05
Owner Aehr Test Systems (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

54.

METHOD AND SYSTEM FOR THERMAL CONTROL OF DEVICES IN AN ELECTRONICS TESTER

      
Application Number US2017012597
Publication Number 2017/120514
Status In Force
Filing Date 2017-01-06
Publication Date 2017-07-13
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Jovanovic, Jovan
  • Deboe, Kenneth W.
  • Steps, Steven C.

Abstract

A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.

IPC Classes  ?

  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

55.

Controlling alignment during a thermal cycle

      
Application Number 15453819
Grant Number 09880197
Status In Force
Filing Date 2017-03-08
First Publication Date 2017-06-22
Grant Date 2018-01-30
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junyje
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

56.

Electronics tester with group and individual current configurations

      
Application Number 15293156
Grant Number 09857418
Status In Force
Filing Date 2016-10-13
First Publication Date 2017-02-02
Grant Date 2018-01-02
Owner Aehr Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

57.

Electronics tester with hot fluid thermal control

      
Application Number 15015051
Grant Number 09500702
Status In Force
Filing Date 2016-02-03
First Publication Date 2016-06-02
Grant Date 2016-11-22
Owner Aehr Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/10 - Locating faults in cables, transmission lines, or networks by increasing destruction at fault, e.g. burning-in by using a pulse generator operating a special programme
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

58.

ELECTRONICS TESTER WITH OUTPUT CIRCUITS OPERABLE IN EITHER VOLTAGE OR CURRENT COMPENSATED POWER MODE OR DRIVER MODE

      
Application Number US2015056429
Publication Number 2016/064852
Status In Force
Filing Date 2015-10-20
Publication Date 2016-04-28
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Hendrickson, David S.

Abstract

A tester is described having output circuits that are operable in either power mode or driver mode. A switching circuit connects force and sense lines to one of the output circuits when in power mode, or connects the same lines separately to the output circuits when in driver mode. A further configuration allows for power to be provided through the lines separately while detecting a measure of power through each line and correcting for unknown resistances of leads connected to the lines.

IPC Classes  ?

59.

Electronics tester with output circuits operable in voltage compensated power mode, driver mode or current compensated power mode

      
Application Number 14918038
Grant Number 09874583
Status In Force
Filing Date 2015-10-20
First Publication Date 2016-04-21
Grant Date 2018-01-23
Owner Aehr Test Systems (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Hendrickson, David S.

Abstract

A tester is described having output circuits that are operable in either power mode or driver mode. A switching circuit connects force and sense lines to one of the output circuits when in power mode, or connects the same lines separately to the output circuits when in driver mode. A further configuration allows for power to be provided through the lines separately while detecting a measure of power through each line and correcting for unknown resistances of leads connected to the lines.

IPC Classes  ?

60.

System for testing an integrated circuit of a device and its method of use

      
Application Number 14973506
Grant Number 10677843
Status In Force
Filing Date 2015-12-17
First Publication Date 2016-04-14
Grant Date 2020-06-09
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

61.

Electronics tester with a valve integrally formed in a component of a portable pack

      
Application Number 14741273
Grant Number 09291668
Status In Force
Filing Date 2015-06-16
First Publication Date 2015-10-08
Grant Date 2016-03-22
Owner Aehr Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

62.

Controlling alignment during a thermal cycle

      
Application Number 14583545
Grant Number 09625521
Status In Force
Filing Date 2014-12-26
First Publication Date 2015-04-23
Grant Date 2017-04-18
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junjye
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals
  • G01R 1/067 - Measuring probes
  • G01R 31/26 - Testing of individual semiconductor devices

63.

System for testing an integrated circuit of a device and its method of use

      
Application Number 13554722
Grant Number 09250291
Status In Force
Filing Date 2012-07-20
First Publication Date 2012-11-08
Grant Date 2016-02-02
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/20 - Preparation of articles or specimens to facilitate testing
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 31/319 - Tester hardware, i.e. output processing circuits

64.

Adhesively attached stand-offs on a portable pack for an electronics tester

      
Application Number 13474581
Grant Number 09086449
Status In Force
Filing Date 2012-05-17
First Publication Date 2012-09-06
Grant Date 2015-07-21
Owner Aehr Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

65.

System for testing an integrated circuit of a device and its method of use

      
Application Number 13223319
Grant Number 08947116
Status In Force
Filing Date 2011-09-01
First Publication Date 2011-12-29
Grant Date 2015-02-03
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junyje
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

66.

Integrated feedthrough module

      
Application Number 13168910
Grant Number 08986048
Status In Force
Filing Date 2011-06-24
First Publication Date 2011-10-20
Grant Date 2015-03-24
Owner Aehr Test Systems (USA)
Inventor
  • Hendrickson, David S.
  • Jovanovic, Jovan
  • Richmond, Ii, Donald P.
  • Barraclough, William D.

Abstract

The invention relates to an apparatus for testing an integrated circuit of an electronic device.

IPC Classes  ?

  • H01R 24/00 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

67.

Electronics tester with a signal distribution board and a wafer chuck having different coefficients of thermal expansion

      
Application Number 13022803
Grant Number 08198909
Status In Force
Filing Date 2011-02-08
First Publication Date 2011-06-30
Grant Date 2012-06-12
Owner AEHR Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

68.

System for testing an integrated circuit of a device and its method of use

      
Application Number 12885373
Grant Number 08228085
Status In Force
Filing Date 2010-09-17
First Publication Date 2011-01-13
Grant Date 2012-07-24
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 1/067 - Measuring probes
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

69.

Separate test electronics and blower modules in an apparatus for testing an integrated circuit

      
Application Number 12437465
Grant Number 07969175
Status In Force
Filing Date 2009-05-07
First Publication Date 2010-11-11
Grant Date 2011-06-28
Owner Aehr Test Systems (USA)
Inventor
  • Hendrickson, David S.
  • Jovanovic, Jovan
  • Richmond, Ii, Donald P.
  • Barraclough, William D.

Abstract

The invention relates to an apparatus for testing an integrated circuit of an electronic device.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
  • G01R 31/26 - Testing of individual semiconductor devices

70.

SEPARATE TEST ELECTRONICS AND BLOWER MODULES IN AN APPARATUS FOR TESTING AN INTEGRATED CIRCUIT

      
Application Number US2010033748
Publication Number 2010/129688
Status In Force
Filing Date 2010-05-05
Publication Date 2010-11-11
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Hendrickson, David S.
  • Jovanovic, Jovan
  • Richmond, Ii, Donald P.
  • Barraclough, William D.

Abstract

The invention relates to an apparatus for testing an integrated circuit of an electronic device.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

71.

System for testing an integrated circuit of a device and its method of use

      
Application Number 12411233
Grant Number 08030957
Status In Force
Filing Date 2009-03-25
First Publication Date 2010-09-30
Grant Date 2011-10-04
Owner Aehr Test Systems (USA)
Inventor
  • Lindsey, Scott E.
  • Yeh, Junyje
  • Jovanovic, Jovan
  • Malathong, Seang P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 1/067 - Measuring probes
  • G01R 31/20 - Preparation of articles or specimens to facilitate testing

72.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number US2010028719
Publication Number 2010/111526
Status In Force
Filing Date 2010-03-25
Publication Date 2010-09-30
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott, E.
  • Yeh, Junyje
  • Jovanovic, Jovan
  • Malathong, Seang, P.

Abstract

A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

73.

Electronics tester with a signal distribution board and a wafer chuck having different coefficients of thermal expansion

      
Application Number 12684051
Grant Number 07902846
Status In Force
Filing Date 2010-01-07
First Publication Date 2010-05-06
Grant Date 2011-03-08
Owner Aehr Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere

74.

SYSTEM FOR TESTING AN INTEGRATED CIRCUIT OF A DEVICE AND ITS METHOD OF USE

      
Application Number US2008086890
Publication Number 2009/085710
Status In Force
Filing Date 2008-12-15
Publication Date 2009-07-09
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott, E.
  • Jovanovic, Jovan
  • Hendrickson, David, S.
  • Richmond, Donald, P., Ii

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

75.

System for testing an integrated circuit of a device and its method of use

      
Application Number 11960453
Grant Number 07800382
Status In Force
Filing Date 2007-12-19
First Publication Date 2009-06-25
Grant Date 2010-09-21
Owner AEHR Test Ststems (USA)
Inventor
  • Lindsey, Scott E.
  • Jovanovic, Jovan
  • Hendrickson, David S.
  • Richmond, Ii, Donald P.

Abstract

A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

76.

Electronics tester with a signal distribution board and a wafer chuck having different coefficients of thermal expansion

      
Application Number 12062988
Grant Number 07667475
Status In Force
Filing Date 2008-04-04
First Publication Date 2009-01-15
Grant Date 2010-02-23
Owner AEHR Test Systems (USA)
Inventor
  • Steps, Steven C.
  • Lindsey, Scott E.
  • Deboe, Kenneth W.
  • Richmond, Ii, Donald P.
  • Calderon, Alberto

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

77.

ELECTRONICS TESTER WITH A SIGNAL DISTRIBUTION BOARD AND A WAFER CHUCK HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION

      
Application Number US2008004411
Publication Number 2008/124068
Status In Force
Filing Date 2008-04-04
Publication Date 2008-10-16
Owner AEHR TEST SYSTEMS (USA)
Inventor
  • Lindsey, Scott, E.
  • Richmond, Donald, P.
  • Calderon, Alberto
  • Steps, Steven, C.
  • Deboe, Kenneth, W

Abstract

The invention relates to a tester apparatus of the kind including a portable supporting structure for removably holding and testing a substrate carrying a microelectronic circuit. An interface on the stationary structure is connected to the first interface when the portable structure is held by the stationary structure and is disconnected from the first interface when the portable supporting structure is removed from the stationary structure. An electrical tester is connected through the interfaces so that signals may be transmitted between the electrical tester and the microelectronic circuit to test the microelectronic circuit.

IPC Classes  ?

  • G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

78.

Apparatus for testing electronic devices

      
Application Number 11522216
Grant Number 07826995
Status In Force
Filing Date 2006-09-14
First Publication Date 2008-04-03
Grant Date 2010-11-02
Owner Aehr Test Systems (USA)
Inventor Maenner, Thomas T.

Abstract

The invention provides an apparatus for testing an integrated circuits on devices including a plurality of electrical subassemblies including a plurality of pattern generator, driver, and power boards divided into physical zones with each physical zone including one pattern generator board, at least one driver board, and at least one power board connected to one another; and a configuration file having information representing flow of current through the electrical subassemblies connected to one another in an interconnection scheme, wherein the electrical subassemblies are organized into at least one logical zone, and wherein the logical zone comprises a plurality of pattern generators.

IPC Classes  ?

  • G01R 27/28 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networksMeasuring transient response
  • G06F 11/00 - Error detectionError correctionMonitoring

79.

Apparatus for testing electronic devices

      
Application Number 11413323
Grant Number 07762822
Status In Force
Filing Date 2006-04-27
First Publication Date 2007-01-04
Grant Date 2010-07-27
Owner Aehr Test Systems (USA)
Inventor
  • Richmond, Ii, Donald P.
  • Deboe, Kenneth W.
  • Uher, Frank O.
  • Jovanovic, Jovan
  • Lindsey, Scott E.
  • Maenner, Thomas T.
  • Vu, Long V.

Abstract

An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.

IPC Classes  ?

  • H01R 13/44 - Means for preventing access to live contacts

80.

DIEPAK KNOWN GOOD DIE SOLUTIONS

      
Serial Number 74645574
Status Registered
Filing Date 1995-03-13
Registration Date 1996-08-20
Owner Aehr Test Systems (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

temporary reusable carriers emulating a packaged semiconductor with a custom interconnect substrate, used to allow burn-in and test at the die level for producing known good die (KGD), for commercial use in the electronics and semiconductor fields