Ycchem Co., Ltd.

Republic of Korea

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Date
2025 January 3
2024 December 1
2025 (YTD) 3
2024 4
2022 3
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IPC Class
H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or 7
G03F 7/004 - Photosensitive materials 6
G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable 6
G03F 7/20 - ExposureApparatus therefor 6
G03F 7/32 - Liquid compositions therefor, e.g. developers 6
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Status
Pending 2
Registered / In Force 27
Found results for  patents

1.

COATING COMPOSITION FOR PREVENTING SEMICONDUCTOR PATTERN COLLAPSE, AND PATTERN COATED USING SAME

      
Application Number KR2024008357
Publication Number 2025/018607
Status In Force
Filing Date 2024-06-18
Publication Date 2025-01-23
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Noh, Eun Su
  • Lim, Hyun Chan
  • Lee, Seung Hyun
  • Lee, Seung Hun

Abstract

The objective of the present invention is to provide a coating composition capable of preventing pattern collapse by causing the contact angle between a semiconductor device pattern and water to be close to 90°, and to provide a pattern coated with the coating composition, and the coating composition capable of preventing pattern collapse comprises: a coating material for preventing pattern collapse, comprising an amide compound represented by chemical formula (1) or a phosphorus compound represented by chemical formula (2); and an organic solvent.

IPC Classes  ?

  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
  • C09D 7/61 - Additives non-macromolecular inorganic
  • C08K 5/20 - Carboxylic acid amides
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C09D 7/20 - Diluents or solvents
  • C08K 3/08 - Metals

2.

COATING COMPOSITION FOR REINFORCING PCB SUBSTRATE GLASS, AND PCB SUBSTRATE GLASS MANUFACTURED BY USING SAME

      
Application Number KR2024008174
Publication Number 2025/014107
Status In Force
Filing Date 2024-06-14
Publication Date 2025-01-16
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Jin, Seung Oh
  • Kim, Jun Han
  • Lee, Seung Hyun
  • Lee, Seung Hun

Abstract

The present invention provides: a coating composition for reinforcing strength so as to prevent damage due to stress imbalance and impact generated during a process for manufacturing a PCB substrate for packaging; and a PCB substrate glass manufactured by using same, and relates to: a coating composition for reinforcing a PCB substrate glass; and a PCB substrate glass manufactured by using same, the coating composition comprising: a compound represented by chemical formula 1; silica; a water-soluble organic solvent; and water.

IPC Classes  ?

  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 7/63 - Additives non-macromolecular organic
  • C09D 7/61 - Additives non-macromolecular inorganic
  • C09D 7/20 - Diluents or solvents
  • C08K 5/5415 - Silicon-containing compounds containing oxygen containing at least one Si—O bond

3.

SPIN-ON CARBON HARD MASK COMPOSITION WITH HIGH PLANARIZATION PERFORMANCE AND PATTERNING METHOD USING SAME

      
Application Number 18830633
Status Pending
Filing Date 2024-09-11
First Publication Date 2025-01-09
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Jeong Hun
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

The present invention relates to a spin-on carbon hard mask composition with higher planarization performance, which is useful in semiconductor lithography processes, and a patterning method using same. The composition according to the present invention contains the 3′,6′-Dihydroxy-3H-spiro[2-benzofuran-1,9′-xanthen]-3-one derivative polymer represented by the following chemical formula 1, an organic solvent, and a surfactant and exhibits excellent effects including excellent solubility, uniform coating performance, high etch-resistance enduring multi-etch processes, excellent mechanical properties, and high planarization properties.

IPC Classes  ?

  • G03F 7/11 - Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
  • G03F 7/16 - Coating processesApparatus therefor
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
  • H01L 21/308 - Chemical or electrical treatment, e.g. electrolytic etching using masks

4.

MOLYBDENUM FILM ETCHANT COMPOSITION AND ETCHING METHOD USING SAME

      
Application Number 18814585
Status Pending
Filing Date 2024-08-26
First Publication Date 2024-12-19
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Kim, Jun Han
  • Jin, Seung Oh
  • Lee, Seung Hyun
  • Lee, Seung Hun

Abstract

The present invention relates to an etchant composition for etching a molybdenum film and a modified molybdenum film while suppressing the etching of an aluminum oxide film and a silicon oxide film, and an etching method therefor, wherein the etchant composition comprises, with respect to the total weight of the composition: 0.1 to 10% by weight of inorganic acid; 0.001 to 5% by weight of an oxidizer; 0.001 to 3% by weight of a fluorine compound; 2 to 4% by weight of a pH adjusting agent; 0.0001 to 2% by weight of an additive; and a residual amount of water.

IPC Classes  ?

  • C09K 13/08 - Etching, surface-brightening or pickling compositions containing an inorganic acid containing a fluorine compound
  • H01L 21/3213 - Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer

5.

CUTTING OIL COMPOSITION

      
Application Number KR2023017228
Publication Number 2024/128542
Status In Force
Filing Date 2023-11-01
Publication Date 2024-06-20
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Kim, Seong Hwan
  • Jin, Seung Oh
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

The present invention relates to a cutting oil composition used in a wire-saw cutting process, composed of: 50 to 95% by weight of base oil represented by chemical formula 1, chemical formula 2, or chemical formula 3; 0.1 to 5% by weight of a chelating agent; 0.1 to 10% by weight of a thickener; 0.1 to 5% by weight of a dispersant; 1 to 20% by weight of an oiling improver; and 1 to 10% by weight of a nonionic surfactant, wherein all properties, including residual metal impurity removal power, cleaning power, viscosity, surface tension, corrosiveness, dispersibility, lubricity, wafer uniformity, wear resistance, etc. are comprehensively excellent, and in particular, cleaning power and metal ion impurity removal power are remarkably excellent.

IPC Classes  ?

  • C10M 169/00 - Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
  • C10M 101/02 - Petroleum fractions
  • C10M 133/04 - Amines, e.g. polyalkylene polyaminesQuaternary amines
  • C10M 129/26 - Carboxylic acidsSalts thereof
  • C10N 40/22 - Metal working with essential removal of material

6.

RINSE SOLUTION COMPOSITION FOR EXTREME ULTRAVIOLET PHOTOLITHOGRAPHY AND PATTERN FORMATION METHOD USING SAME

      
Application Number KR2023013621
Publication Number 2024/106711
Status In Force
Filing Date 2023-09-12
Publication Date 2024-05-23
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

[Abstract] The invention of the present application relates to a rinse solution composition for extreme ultraviolet photolithography and a pattern formation method using same. The rinse solution composition for extreme ultraviolet photolithography comprises: 0.0001-0.01 wt% of a fluorine-based surfactant; 0.0001-0.5 wt% of a pattern reinforcing agent which is a compound of chemical formula (1), a compound of chemical formula (2), or a mixture thereof; 0.0001-0.5 wt% of a substance selected from the group consisting of triol derivatives, tetraol derivatives, or mixtures thereof; and the remainder of water.

IPC Classes  ?

  • G03F 7/42 - Stripping or agents therefor
  • C11D 1/00 - Detergent compositions based essentially on surface-active compoundsUse of these compounds as a detergent
  • C11D 3/20 - Organic compounds containing oxygen
  • C11D 3/34 - Organic compounds containing sulfur
  • C11D 3/24 - Organic compounds containing halogen
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

7.

CMP SLURRY COMPOSITION FOR POLISHING COPPER BARRIER LAYER

      
Application Number KR2023008568
Publication Number 2024/010249
Status In Force
Filing Date 2023-06-21
Publication Date 2024-01-11
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Kim, Seong Hwan
  • Park, Kyung Il

Abstract

The present invention relates to a slurry composition for polishing a copper barrier layer for chemical mechanical planarizing (CMP) of tantalum nitride or tantalum as a diffusion barrier in the presence of an interconnect structure in an integrated circuit device. The slurry composition according to the present invention comprises polishing particles, a heterocyclic compound, an organic acid, a surface-protecting agent, a nitride, a pH adjuster, and the remainder of deionized water, and there is the effect of providing a slurry composition exhibiting high polishing selectivity and less dishing and defects.

IPC Classes  ?

  • C09G 1/02 - Polishing compositions containing abrasives or grinding agents
  • C09K 3/14 - Anti-slip materialsAbrasives
  • C01B 33/14 - Colloidal silica, e.g. dispersions, gels, sols
  • H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
  • H01L 21/321 - After-treatment

8.

Etching composition for silicon nitride film

      
Application Number 17430480
Grant Number 11555150
Status In Force
Filing Date 2020-02-10
First Publication Date 2022-04-28
Grant Date 2023-01-17
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Kim, Seong Hwan
  • Jin, Seung Oh

Abstract

The present invention relates to an etching composition for selectively etching a silicon nitride layer. The etching composition includes an inorganic acid, an epoxy-based silicon compound, and water. The etching composition of the present invention selectively removes a silicon nitride layer while minimizing damage to an underlying metal layer and preventing a silicon oxide layer from being etched.

IPC Classes  ?

  • C09K 13/06 - Etching, surface-brightening or pickling compositions containing an inorganic acid with organic material
  • C09K 13/08 - Etching, surface-brightening or pickling compositions containing an inorganic acid containing a fluorine compound
  • H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching

9.

Method for forming silicon or silicon compound pattern in semiconductor manufacturing process

      
Application Number 17423334
Grant Number 11488834
Status In Force
Filing Date 2020-01-17
First Publication Date 2022-03-31
Grant Date 2022-11-01
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

Disclosed is a method of forming a fine silicon pattern with a high aspect ratio for fabrication of a semiconductor device. The method includes a cleaning process of removing organic residue or reside originating in fumes using a cleaning solution, thereby enabling formation of a desired pattern while preventing the pattern from being lifted. Thus, the present disclosure enables formation of a fine pattern by using a novel cleaning method.

IPC Classes  ?

  • H01L 21/311 - Etching the insulating layers
  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

10.

Process liquid for extreme ultraviolet lithography and pattern forming method using same

      
Application Number 17294865
Grant Number 11487208
Status In Force
Filing Date 2019-11-11
First Publication Date 2022-01-13
Grant Date 2022-11-01
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

Proposed are a processing solution for reducing the incidence of pattern collapse and the number of defects in a photoresist pattern including polyhydroxystyrene using extreme ultraviolet rays as an exposure source, and a method of forming a pattern using the same. The processing solution for reducing the incidence of photoresist pattern collapse and the number of defects includes 0.0001 to 1 wt % of an alkaline material, 0.0001 to 1 wt % of an anionic surfactant, and 98 to 99.9998 wt % of water.

IPC Classes  ?

  • G03F 7/20 - ExposureApparatus therefor
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

11.

Process solution composition for extreme ultraviolet lithography, and method for forming pattern by using same

      
Application Number 17054371
Grant Number 11473035
Status In Force
Filing Date 2019-05-22
First Publication Date 2021-07-15
Grant Date 2022-10-18
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

A processing solution composition for reducing collapse of a polyhydroxystyrene-containing photoresist pattern defined by an extreme-ultraviolet exposure source and a method of forming a pattern using the same are proposed. The processing solution composition includes 0.0001 to 1 wt % of a nonionic surfactant having an HLB (Hydrophilic-Lipophilic Balance) value of 9 to 16, 0.0001 to 1 wt % of an alkaline material selected from the group consisting of tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetrabutylammonium hydroxide, and mixtures thereof, and 98 to 99.9998 wt % of water, and is effective at reducing the collapse of a polyhydroxystyrene-containing photoresist pattern defined by an extreme-ultraviolet exposure source.

IPC Classes  ?

  • C11D 1/72 - Ethers of polyoxyalkylene glycols
  • C11D 3/30 - AminesSubstituted amines
  • C11D 11/00 - Special methods for preparing compositions containing mixtures of detergents
  • G03F 7/20 - ExposureApparatus therefor
  • G03F 7/42 - Stripping or agents therefor
  • C11D 1/722 - Ethers of polyoxyalkylenes having mixed oxyalkylene groups
  • C11D 1/62 - Quaternary ammonium compounds
  • B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect

12.

Etching method for forming micro silicon pattern in semiconductor manufacturing process

      
Application Number 16961450
Grant Number 11315788
Status In Force
Filing Date 2019-01-09
First Publication Date 2021-03-18
Grant Date 2022-04-26
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun

Abstract

A process of realizing a silicon micropattern having a large aspect ratio in a semiconductor-manufacturing process, and a novel wet etching method that includes treating an organic carbon film layer so that a hydrofluoric-acid-resistant material is selectively attached to the organic carbon film layer and then wet etching the same using an aqueous solution containing hydrofluoric acid, thus forming a pattern, are proposed. In the method of forming the pattern by wet etching, etching is performed so that an active region having a depth of several μm in an object to be etched is not damaged when a pattern having a small CD is formed, thereby exhibiting an effect of providing a method of forming a micropattern.

IPC Classes  ?

  • H01L 21/033 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or comprising inorganic layers
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

13.

EUV developer composition for forming photosensitive photoresist micropattern

      
Application Number 16492767
Grant Number 11169442
Status In Force
Filing Date 2018-03-22
First Publication Date 2021-03-04
Grant Date 2021-11-09
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

An extreme ultraviolet (EUV) developer composition for use in manufacturing a semiconductor is provided. More particularly an EUV developer composition for forming a fine pattern is provided, which is capable of forming a more uniform pattern and lowering EOP in a development process, the EUV developer composition including a water-soluble polymer represented by Chemical Formula 1, a nonionic surfactant represented by Chemical Formula 2, and an alkali compound.

IPC Classes  ?

  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/20 - ExposureApparatus therefor

14.

Developer composition, for EUV light source, for forming photosensitive photoresist micropattern

      
Application Number 16961407
Grant Number 11199779
Status In Force
Filing Date 2019-01-09
First Publication Date 2020-11-19
Grant Date 2021-12-14
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun

Abstract

A photoresist developer composition for an EUV (extreme ultraviolet) light source in a semiconductor-manufacturing process is proposed. Further, the photoresist developer composition for an EUV light source for forming a micropattern and a lithography process of forming a pattern on a semiconductor substrate using an EUV light source using the composition are proposed. The composition includes an aqueous solution containing 2 to 10 wt % of tetraethylammonium hydroxide (TEAH). When a photoresist is developed, an Eop is reduced, which shortens a process time, prevents a pattern from collapsing, and enables a pattern to have a uniform profile.

IPC Classes  ?

  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/20 - ExposureApparatus therefor

15.

Cutting oil composition

      
Application Number 16609685
Grant Number 11001780
Status In Force
Filing Date 2018-05-31
First Publication Date 2020-06-18
Grant Date 2021-05-11
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Kim, Seong Hwan
  • Ham, Gyeong Guk

Abstract

Disclosed is a cutting oil composition, which is vastly superior in view of layer separation, dispersibility, viscosity, ingot-cleaning time after sawing, and wafer warpage after sawing, compared to conventional cutting oil compositions, and which includes mineral oil that is highly hydrogenated, as represented by Chemical Formulas 1 to 3, bentonite clay as a thickener, and glycerol trioleate as a dispersant. A cutting method using the cutting oil composition is also provided.

IPC Classes  ?

16.

Method and composition for improving LWR in patterning step using negative tone photoresist

      
Application Number 16098771
Grant Number 11169444
Status In Force
Filing Date 2017-04-26
First Publication Date 2020-06-11
Grant Date 2021-11-09
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

The present invention relates to a method of reducing the LWR (Line Width Roughness) of a photoresist pattern using a negative tone photoresist during the fabrication of a semiconductor, and more specifically to a composition capable of reducing LWR in order to ensure a higher pattern CDU after a negative tone development process, and a processing method using the composition, thus reducing the LWR, thereby providing better CDU than existing methods.

IPC Classes  ?

  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable

17.

Photoresist pattern shrinking composition and pattern shrinking method

      
Application Number 16304095
Grant Number 11294287
Status In Force
Filing Date 2017-06-20
First Publication Date 2020-04-09
Grant Date 2022-04-05
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Lee, Su Jin
  • Kim, Gi Hong

Abstract

Provided is a composition for shrinking a photoresist pattern, which is capable of shrinking a photoresist pattern using a photoresist during the fabrication of a semiconductor, and to a method of shrinking a pattern using the composition, whereby a pattern to be formed can be shrunken in a photoresist-patterning process, thus remarkably decreasing the number of steps of a semiconductor fabrication process and reducing the fabrication time and costs.

IPC Classes  ?

  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • C11D 1/72 - Ethers of polyoxyalkylene glycols
  • C11D 3/18 - Hydrocarbons
  • C11D 3/20 - Organic compounds containing oxygen
  • C11D 3/32 - AmidesSubstituted amides
  • C11D 3/43 - Solvents
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

18.

Composition for performing cleaning after chemical/ mechanical polishing

      
Application Number 16489179
Grant Number 10844335
Status In Force
Filing Date 2018-03-06
First Publication Date 2019-12-19
Grant Date 2020-11-24
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Kim, Seong Hwan

Abstract

Disclosed is a post-chemical-mechanical-polishing cleaning composition, which is capable of effectively removing impurities from the surface of a wafer substrate after chemical mechanical polishing and also of preventing the corrosion of metal line materials, and which includes choline hydroxide, tetrabutylammonium hydroxide, 1,2,4-triazole, 2-hydroxypyridine, and the remainder of ultrapure water.

IPC Classes  ?

  • C11D 7/32 - Organic compounds containing nitrogen
  • C11D 11/00 - Special methods for preparing compositions containing mixtures of detergents
  • C11D 7/26 - Organic compounds containing oxygen
  • C11D 7/50 - Solvents

19.

High etch resistance spin-on carbon hard mask composition and patterning method using same

      
Application Number 16341244
Grant Number 11036134
Status In Force
Filing Date 2017-10-12
First Publication Date 2019-08-22
Grant Date 2021-06-15
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Kim, Gi Hong
  • Lee, Su Jin
  • Lee, Seung Hyun
  • Lee, Seung Hun

Abstract

Provided is a hard mask composition having high etching resistance suitable for use in a semiconductor lithography process, and particularly to a spin-on hard mask composition including a dibenzo carbazole polymer and to a patterning method of forming a hard mask layer by applying the composition on an etching layer through spin coating and performing a baking process. The hard mask according to the present invention has effects of exhibiting high solubility and superior mechanical properties, as well as high etching resistance to withstand multiple etching processes.

IPC Classes  ?

  • C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
  • G03F 7/004 - Photosensitive materials
  • C08G 61/10 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aromatic carbon atoms, e.g. polyphenylenes
  • G03F 7/16 - Coating processesApparatus therefor
  • G03F 7/09 - Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers

20.

Chemically-amplified-type negative-type photoresist composition

      
Application Number 16098706
Grant Number 11586109
Status In Force
Filing Date 2017-04-26
First Publication Date 2019-05-09
Grant Date 2023-02-21
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Lee, Su Jin
  • Choi, Young Cheol

Abstract

The present invention relates to a chemically-amplified-type negative photoresist composition, and more particularly to a chemically-amplified-type negative photoresist composition suitable for use in a semiconductor process, which includes a specific organic acid additive, thereby improving a processing margin in a short-wavelength exposure light source compared to conventional negative photoresists.

IPC Classes  ?

  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
  • G03F 7/004 - Photosensitive materials
  • G03F 7/30 - Imagewise removal using liquid means

21.

Method and composition for improving LWR in patterning step using negative tone photoresist

      
Application Number 16098794
Grant Number 11187985
Status In Force
Filing Date 2017-04-26
First Publication Date 2019-05-09
Grant Date 2021-11-30
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun
  • Lee, Seung Hyun

Abstract

The present invention relates to a method of reducing the LWR (Line Width Roughness) of a photoresist pattern using a negative tone photoresist during the fabrication of a semiconductor, and more specifically to a composition capable of reducing LWR in order to ensure a higher pattern CDU after a negative tone development process, and a processing method using the composition, thus reducing the LWR, thereby providing better CDU than existing methods.

IPC Classes  ?

  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists

22.

Negative photoresist composition for KRF laser, having high resolution and high aspect ratio

      
Application Number 16086485
Grant Number 10775699
Status In Force
Filing Date 2017-03-22
First Publication Date 2019-04-04
Grant Date 2020-09-15
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Lee, Su Jin
  • Choi, Young Cheol

Abstract

Disclosed is a negative photoresist composition for a KrF laser, having high resolution and a high aspect ratio and, more particularly, a negative photoresist composition for a KrF laser, which includes a specific additive in order to improve the properties of a conventional negative photoresist, whereby the negative photoresist composition can prevent fine-pattern collapse even using a short-wavelength exposure light source, compared to conventional negative photoresists, and can also exhibit high resolution and a high aspect ratio and is thus suitable for use in semiconductor processing.

IPC Classes  ?

  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
  • G03F 7/004 - Photosensitive materials
  • G03F 7/40 - Treatment after imagewise removal, e.g. baking

23.

Anti-reflection coating composition and anti-reflection film utilizing same

      
Application Number 16070662
Grant Number 10717878
Status In Force
Filing Date 2017-01-17
First Publication Date 2018-11-08
Grant Date 2020-07-21
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Ham, Gyeong Guk

Abstract

The present invention relates to an anti-reflective coating solution composition and an anti-reflective coating film using the same. More particularly, an anti-reflective coating solution composition is provided, which has a low refractive index to thus improve transmittance and can also increase abrasion resistance to thus maintain an anti-reflective effect for a long period of time, whereby an anti-reflective coating film for improving solar cell module efficiency can be formed, and thus can be applied not only to a solar cell module glass but also to glass in a variety of fields.

IPC Classes  ?

  • C09D 5/06 - Artists' paints
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 183/06 - Polysiloxanes containing silicon bound to oxygen-containing groups
  • C03C 1/00 - Ingredients generally applicable to manufacture of glasses, glazes or vitreous enamels
  • C03C 17/02 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with glass
  • C09D 7/61 - Additives non-macromolecular inorganic
  • C03C 17/30 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds

24.

I-line negative type photoresist composition having excellent etching resistance

      
Application Number 15753746
Grant Number 10539871
Status In Force
Filing Date 2016-08-26
First Publication Date 2018-08-30
Grant Date 2020-01-21
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Yoon, Sang Woong
  • Choi, Young Cheol

Abstract

This invention relates to an I-line negative photoresist composition having excellent etching resistance, which can exhibit superior etching resistance compared to conventional I-line negative photoresists and is thus suitable for use in semiconductor processing.

IPC Classes  ?

  • G03F 7/004 - Photosensitive materials
  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
  • G03F 7/029 - Inorganic compoundsOnium compoundsOrganic compounds having hetero atoms other than oxygen, nitrogen or sulfur
  • G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F 7/032 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
  • G03F 7/16 - Coating processesApparatus therefor
  • G03F 7/20 - ExposureApparatus therefor
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • G03F 7/38 - Treatment before imagewise removal, e.g. prebaking

25.

Slurry composition for CMP and polishing method using same

      
Application Number 15762871
Grant Number 10526508
Status In Force
Filing Date 2016-09-23
First Publication Date 2018-08-16
Grant Date 2020-01-07
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Lee, Su Jin
  • Kim, Seong Hwan

Abstract

Provided are a slurry composition for CMP and a polishing method using the same, in which polishing can be performed by freely adjusting the selectivity ratio of a silicon oxide film, a silicon nitride and a polysilicon film through control of the amounts of additive and solvent, and thus the slurry composition can be efficiently applied to the process of manufacturing a semiconductor, requiring selective removal of a silicon nitride film and a polysilicon film relative to a silicon oxide film.

IPC Classes  ?

  • C09G 1/02 - Polishing compositions containing abrasives or grinding agents
  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
  • H01L 21/321 - After-treatment
  • H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching

26.

Negative photoresist composition for KrF laser for forming semiconductor patterns

      
Application Number 15744667
Grant Number 10162261
Status In Force
Filing Date 2016-06-27
First Publication Date 2018-07-19
Grant Date 2018-12-25
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Yoon, Sang Woong
  • Lee, Su Jin
  • Choi, Young Cheol

Abstract

Provided is a negative photoresist composition for a KrF laser for semiconductor pattern formation, which includes a predetermined compound in order to improve the properties of a conventional negative photoresist, thereby realizing high transparency, high resolution and an excellent profile, even in the presence of an exposure source having a short wavelength compared to the conventional negative photoresist, and is thus suitable for use in semiconductor processing.

IPC Classes  ?

  • G03F 7/004 - Photosensitive materials
  • G03F 7/033 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
  • G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable

27.

Cleaning composition for photolithography and method of forming photoresist pattern using the same

      
Application Number 15181521
Grant Number 09829797
Status In Force
Filing Date 2016-06-14
First Publication Date 2017-01-19
Grant Date 2017-11-28
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Seung Hun
  • Lee, Seung Hyun
  • Yoon, Sang Woong
  • Ham, Gyeong Guk

Abstract

Disclosed are a cleaning composition for photolithography and a method of forming a photoresist pattern using the same. The cleaning composition, necessary for forming a photoresist pattern having a high aspect ratio, includes water and a compound represented by Chemical Formula 1 below: wherein R is H or OH, x is an integer selected from 1 to 100, y is an integer selected from 0 to 100, and z is an integer selected from 0 to 100. This cleaning composition is useful for forming a pattern using any of a variety of light sources, and also, even when it is difficult to form a fine pattern as desired using a photoresist alone, a fine pattern can be realized at a desired level of fineness and production costs can be reduced.

IPC Classes  ?

  • G03F 7/004 - Photosensitive materials
  • G03F 7/40 - Treatment after imagewise removal, e.g. baking
  • C11D 1/722 - Ethers of polyoxyalkylenes having mixed oxyalkylene groups
  • C11D 3/43 - Solvents
  • C11D 3/30 - AminesSubstituted amines
  • G03F 7/20 - ExposureApparatus therefor
  • G03F 7/32 - Liquid compositions therefor, e.g. developers
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
  • C11D 1/72 - Ethers of polyoxyalkylene glycols
  • C11D 11/00 - Special methods for preparing compositions containing mixtures of detergents

28.

Coating composition for preventing collapse of capacitor

      
Application Number 14440414
Grant Number 09884970
Status In Force
Filing Date 2013-12-10
First Publication Date 2015-10-01
Grant Date 2018-02-06
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Su Jin
  • Kim, Gi Hong
  • Lee, Seung Hun

Abstract

Disclosed herein is a coating composition for preventing the collapse of a capacitor, comprising a silane compound or a phosphorus compound. The coating composition can adjust a contact angle with regard to water on a substrate, thereby preventing the collapse of capacitor patterns on the substrate.

IPC Classes  ?

  • H01L 49/02 - Thin-film or thick-film devices
  • C09D 7/00 - Features of coating compositions, not provided for in group Processes for incorporating ingredients in coating compositions
  • C09D 7/12 - Other additives
  • C09D 183/04 - Polysiloxanes
  • H01L 27/108 - Dynamic random access memory structures
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

29.

Photoresist coating composition and method for forming fine pattern using the same

      
Application Number 11298385
Grant Number 07615338
Status In Force
Filing Date 2005-12-08
First Publication Date 2006-11-23
Grant Date 2009-11-10
Owner YCCHEM CO., LTD. (Republic of Korea)
Inventor
  • Lee, Geun Su
  • Moon, Seung Chan
  • Lee, Seung Hun

Abstract

A photoresist coating composition that includes a compound represented by Formula 1 and an aqueous solvent, and a method for forming a fine pattern by coating the composition on a photoresist pattern to effectively reduce a size of a photoresist contact hole and a space, which can be applied to all semiconductor processes.

IPC Classes  ?

  • G03C 1/73 - Photosensitive compositions not covered by groups containing organic compounds
  • G03F 7/26 - Processing photosensitive materialsApparatus therefor
  • G03F 7/36 - Imagewise removal not covered by groups , e.g. using gas streams, using plasma