Patents by Inventor Chun-geun Park

Chun-geun Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100151389
    Abstract: Disclosed is a photosensitive resin composition suitable for forming barrier ribs for LCD pixels during a process for fabricating an LCD using an ink jet printing step. Also disclosed is a method of forming barrier ribs for LCD pixels using such photosensitive resin composition.
    Type: Application
    Filed: September 22, 2009
    Publication date: June 17, 2010
    Applicant: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Chun Geun Park, Moo Young Lee, Seok Han, Seung Keun Kim, In Kyung Sung, Hag Ju Lee
  • Patent number: 6713229
    Abstract: Copolymers and terpolyers are used in chemically amplified resists. The terpolymers are of the formula: wherein R3 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R4 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R5 is selected from the group consisting of hydrogen and methyl; R6 is selected from the group consisting of t-butyl and tetrahydropyranyl; m and n are each integers; and wherein n/(m+n) ranges from about 0.1 to about 0.5.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: March 30, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park, Young-bum Koh
  • Publication number: 20020132186
    Abstract: Copolymers and terpolyers are used in chemically amplified resists.
    Type: Application
    Filed: May 21, 2002
    Publication date: September 19, 2002
    Inventors: Sang-Jun Choi, Chun-Geun Park, Young-Bum Koh
  • Patent number: 6416927
    Abstract: Copolymers and terpolyers are used in chemically amplified resists. The terpolymers are of the formula: wherein R3 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R4 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R5 is selected from the group consisting of hydrogen and methyl; R6 is selected from the group consisting of t-butyl and tetrahydropyranyl; m and n are each integers; and wherein n/(m+n) ranges from about 0.1 to about 0.5.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: July 9, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park, Young-bum Koh
  • Patent number: 6300036
    Abstract: The compounds are of a class of photosensitive polymers for use in chemically amplified photoresists. These photoresists produce sharp line patterns when exposed with an ArF excimer laser. The polymer composition includes a copolymer and the photoresist composition includes a terpolymer with a photo acid generator. The resulting chemically amplified photoresist compositions have strong resistance to dry etching, possess excellent adhesion to film material, and are capable of being developed using conventional developers.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: October 9, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Jun Choi, Yool Kang, Dong-Won Jung, Chun-Geun Park
  • Patent number: 6280903
    Abstract: Copolymers and terpolymers are used in chemically amplified resists. The terpolymers are of the formula: wherein R3 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein said aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof. R4 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein said aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R5 is selected from the group consisting of hydrogen and methyl; R6 is selected from the group consisting of t-butyl and tetrahydropyranyl; M and n are each integers; and wherein n/(m+n) ranges from about 0.1 to about 0.5.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: August 28, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yool Kang, Sang-Jun Choi, Dong-Won Jung, Chun-Geun Park, Young-Bum Koh
  • Patent number: 6171754
    Abstract: Copolymers and terpolyers are used in chemically amplified resists. The terpolymers are of the formula: wherein R3 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R4 is selected from the group consisting of hydrogen and a C1 to C10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R5 is selected from the group consisting of hydrogen and methyl; R6 is selected from the group consisting of t-butyl and tetrahydropyranyl; m and n are each integers; and wherein n/(m+n) ranges from about 0.1 to about 0.5.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: January 9, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park, Young-bum Koh
  • Patent number: 6114084
    Abstract: Copolymers and terpolymers are used in chemically amplified resists. The terpolymers are of the formula: ##STR1## wherein R.sub.3 is selected from the group consisting of hydrogen and a C.sub.1 to C.sub.10 aliphatic hydrocarbon, wherein said aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R.sub.4 is selected from the group consisting of hydrogen and a C.sub.1 to C.sub.10 aliphatic hydrocarbon, wherein said aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof, R.sub.5 is selected from the group consisting of hydrogen and methyl; R.sub.6 is selected from the group consisting of t-butyl and tetrahydropyranyl; M and n are each integers; and wherein n/(m+n) ranges from about 0.1 to about 0.5.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: September 5, 2000
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Yool Kang, Sang-Jun Choi, Dong-Won Jung, Chun-Geun Park, Young-Bum Koh
  • Patent number: 6103845
    Abstract: Copolymers and terpolyers are used in chemically amplified resists. The terpolymers are of the formula: ##STR1## wherein R.sub.3 is selected from the group consisting of hydrogen and a C.sub.1 to C.sub.10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R.sub.4 is selected from the group consisting of hydrogen and a C.sub.1 to C.sub.10 aliphatic hydrocarbon, wherein the aliphatic hydrocarbon contains substituents selected from the group consisting of hydrogen, hydroxy, carboxylic acid, carboxylic anhydride, and combinations thereof; R.sub.5 is selected from the group consisting of hydrogen and methyl; R.sub.6 is selected from the group consisting of t-butyl and tetrahydropyranyl; m and n are each integers; and wherein n/(m+n) ranges from about 0.1 to about 0.5.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: August 15, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park, Young-bum Koh
  • Patent number: 5981141
    Abstract: In general, the invention provides polymers which may be used in chemically amplified resists. More particularly, the invention relates to esterified polymers containing the group: ##STR1## Resist compositions comprise the esterified polymers and photoacid generators.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: November 9, 1999
    Assignee: Samsung Electrics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park, Hai-won Lee
  • Patent number: 5856411
    Abstract: Resins for use in chemically amplified resists are represented by the general formula (I): ##STR1## wherein R.sub.1 is t-butyl or tetrahydropyranyl; R.sub.2 is hydrogen or methyl; n and m are integers; and the ratio n/((m+n) ranges from 0.1 to 0.9. Methods for manufacturing the resins comprise reacting a monomer represented by the formula (II): ##STR2## with a monomer represented by the formula (III): ##STR3## to form a copolymer represented by the formula (IV): ##STR4## wherein R.sub.1 and R.sub.2 are defined as above; and hydrolyzing acetoxy groups contained in the copolymer represented by the formula (IV) to form the resin compositions.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: January 5, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park
  • Patent number: 5851727
    Abstract: Photosensitive polymers are represented by the formula: ##STR1## wherein R1 is selected from the group consisting of hydrogen and methyl; R2 is selected from the group consisting of aliphatic hydrocarbon groups having from 6 to 20 carbon atoms; R3 is selected from the group consisting of a t-butyl group and a tetrahydropyranyl group, and m and n are selected such that the ratio m/(n+m) ranges from 0.1 to 0.9. Photoresist compositions comprise the photosensitive polymers and photoacid generators.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: December 22, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park, Young-bum Koh
  • Patent number: 5847063
    Abstract: Resins for use in chemically amplified resists are represented by the general formula (I): ##STR1## wherein R.sub.1 is t-butyl or tetrahydropyranyl; R.sub.2 is hydrogen or methyl; n and m are integers; and the ratio n/((m+n) ranges from 0.1 to 0.9. Methods for manufacturing the resins comprise reacting a monomer represented by the formula (II): ##STR2## with a monomer represented by the formula (III): ##STR3## to form a copolymer represented by the formula (IV): ##STR4## wherein R.sub.1 and R.sub.2 are defined as above; and hydrolyzing acetoxy groups contained in the copolymer represented by the formula (IV) to form the resin compositions.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: December 8, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park
  • Patent number: 5759755
    Abstract: A method for manufacturing an anti-reflective layer comprises the steps of coating a polymer solution containing at least one compound selected from the group consisting of phenol-based resins, water-soluble resins and acryl resins as a main component, and then baking at a high temperature. The method is simplified and the layer's reflectance is greatly enhanced.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: June 2, 1998
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Chun-geun Park, Gi-sung Yeo, Jung-chul Park
  • Patent number: 5733704
    Abstract: A resist composition by which high resolution patterns can be formed in a lithography process, due to its high sensitivity to light and large difference in solubilities in a developing solution before and after exposure to light, and which has excellent thermal characteristics. The resist composition is suitable for manufacturing highly integrated semiconductor chips.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: March 31, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Chun-geun Park
  • Patent number: 5593725
    Abstract: A method for manufacturing an anti-reflective layer comprises the steps of coating a polymer solution containing at least one compound selected from the group consisting of phenol-based resins, water-soluble resins and acryl resins as a main component, and then baking at a high temperature. The method is simplified and the layer's reflectance is greatly enhanced.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: January 14, 1997
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chun-geun Park, Gi-sung Yeo, Jung-chul Park
  • Patent number: 5496770
    Abstract: A connection bump of a semiconductor chip is formed by a photoresist pattern. The photoresist pattern is obtained through an exposure process by which photolithography solution layers of positive and/or negative type are repeatedly exposed and thereafter developed to obtain a photoresist pattern corresponding to the connection bump. Since the upper portion of the manufactured bump is no larger than the lower portion thereof, the bumps do not contact each other even though the upper portion of the bump is stretched due to a pressure induced during a process of bonding internal leads in a TAB package. The connection bump formed according to the present invention has a high aspect ratio, thereby preventing the internal leads from contacting the semiconductor chip surface and advantageously facilitating the removal of the photoresist pattern after the bump formation process to simplify overall manufacturing process.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: March 5, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chun-Geun Park
  • Patent number: 5418186
    Abstract: A method for manufacturing a bump on a semiconductor comprising the steps of: forming metal pad on a portion of a surface of a substrate, forming a barrier metal layer over the surface of the substrate such that the barrier metal layer cover the metal pad, forming a photoresist layer over the barrier metal layer, forming an opening in the photoresist layer to expose a portion of the barrier metal layer overlaying the metal pad, forming a chip bump in the opening, selectively removing the photoresist layer using the bump as a mask, such that residual portions of the photoresist layer remain, and such that portions of the barrier metal layer are exposed, etching the exposed portions of the barrier metal layer using the residual photoresist layer as a mask, and removing the residual photoresist layer.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: May 23, 1995
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-han Park, Chun-geun Park, Seon-ho Ha