Patents by Inventor Sae-Tae Oh

Sae-Tae Oh 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).

  • Patent number: 8808963
    Abstract: A photoresist composition includes a binder resin, a photo acid generator, an acryl resin having four different types of monomers, and a solvent.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: August 19, 2014
    Assignees: Samsung Display Co., Ltd., AZ Electronic Materials (KOREA) Ltd.
    Inventors: Hi-Kuk Lee, Sang-Hyun Yun, Min-Soo Lee, Deok-Man Kang, Sae-Tae Oh, Jae-Young Choi
  • Patent number: 8652749
    Abstract: A photoresist composition is provided. The photoresist composition includes an alkali-soluble resin; a photosensitizer containing a first compound that contains a diazonaphthoquinone represented by Formula 1 and a second compound that contains a diazonaphthoquinone represented by Formula 2; and a solvent. and R1 is selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 4 carbons, an alkenyl group having 2 to 4 carbons, a cycloalkyl group having 3 to 8 carbons, and an aryl group having 6 to 12 carbons, and R2 is selected from the group consisting of Cl, F, Br, and I.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 18, 2014
    Assignees: Samsung Display Co., Ltd., AZ Electronic Materials (Korea) Ltd.
    Inventors: Hi-Kuk Lee, Sang-Hyun Yun, Cha-Dong Kim, Jung-In Park, Deok-Man Kang, Youn-Suk Kim, Sae-Tae Oh
  • Publication number: 20120052438
    Abstract: A photoresist composition and method of forming pattern using the same are provided. The photoresist composition contains an alkali-soluble novolac resin, a photosensitizer including a compound of Chemical Formula 1, and a solvent.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 1, 2012
    Inventors: Cha-Dong KIM, Sang-Hyun Yun, Jung-In Park, Hi-Kuk Lee, Deok-Man Kang, Youn-Suk Kim, Sae-Tae Oh
  • Publication number: 20110287360
    Abstract: A photoresist composition is provided. The photoresist composition includes an alkali-soluble resin; a photosensitizer containing a first compound that contains a diazonaphthoquinone represented by Formula 1 and a second compound that contains a diazonaphthoquinone represented by Formula 2; and a solvent. and R1 is selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 4 carbons, an alkenyl group having 2 to 4 carbons, a cycloalkyl group having 3 to 8 carbons, and an aryl group having 6 to 12 carbons, and R2 is selected from the group consisting of Cl, F, Br, and I.
    Type: Application
    Filed: February 28, 2011
    Publication date: November 24, 2011
    Applicants: AZ ELECTRONIC MATERIALS K.K., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hi-Kuk LEE, Sang-Hyun YUN, Cha-Dong KIM, Jung-In PARK, Deok-Man KANG, Youn-Suk KIM, Sae-Tae OH
  • Publication number: 20110171581
    Abstract: A photoresist composition includes a binder resin, a photo acid generator, an acryl resin having four different types of monomers, and a solvent.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 14, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., AZ ELECTRONIC MATERIALS(JAPAN) K.K.
    Inventors: Hi-Kuk LEE, Sang-Hyun YUN, Min-Soo LEE, Deok-Man KANG, Sae-Tae OH, Jae-Young CHOI
  • Patent number: 7927897
    Abstract: A photoresist composition includes a binder resin, a photo acid generator, an acryl resin having four different types of monomers, and a solvent.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: April 19, 2011
    Assignees: Samsung Electronics Co., Ltd., AZ Electronic Materials (Japan) K.K.
    Inventors: Hi-Kuk Lee, Sang-Hyun Yun, Min-Soo Lee, Deok-Man Kang, Sae-Tae Oh, Jae-Young Choi
  • Publication number: 20100167206
    Abstract: A photoresist composition includes a novolac resin, a benzophenone photosensitizer and an ethylidyne tris phenol photosensitizer, and an organic solvent. Thus, a micropattern having a higher resolution than the resolution of an exposure apparatus is formed to decrease an amount of exposure and/or exposure time, thereby improving manufacturing reliability and productivity.
    Type: Application
    Filed: September 10, 2009
    Publication date: July 1, 2010
    Applicants: SAMSUNG ELECTRONICS CO., LTD., AZ ELECTRONIC MATERIALS (JAPAN) K.K.
    Inventors: Woo-Seok JEON, Sang-Hyun YUN, Hi-Kuk LEE, Deok-Man KANG, Sae-Tae OH
  • Publication number: 20100055851
    Abstract: The present invention relates to a photoresist composition that comprises a resin that is represented by Formula 1, a method for forming a thin film pattern, and a method for manufacturing a thin film transistor array panel by using the same. Herein, R is a methylene group, and n is an integer of 1 or more.
    Type: Application
    Filed: February 19, 2009
    Publication date: March 4, 2010
    Applicants: Samsung Electronics Co., Ltd., AZ Electronic Materials (Japan) K.K.
    Inventors: Hi-Kuk Lee, Sang-Hyun Yun, Jung-In Park, Woo-Seok Jeon, Pil-Soon Hong, Doek-Man Kang, Sae-Tae Oh, Chang-Ik Lee
  • Publication number: 20100009482
    Abstract: A photoresist composition includes 5% to 50% by weight of an alkali-soluble resin, 0.5% to 30% by weight of a quinone diazide compound, 0.1% to 15 % by weight of a curing agent, and a remainder of an organic solvent. A method of forming a metal pattern includes coating a photoresist composition on a base substrate having a metal layer, and forming a first photoresist film. The photoresist composition includes 5% to 50% by weight of an alkali-soluble resin, 0.5% to 30% by weight of a quinone diazide compound, 0.1% to 15% by weight of a curing agent, and a remainder of an organic solvent. The first photoresist film is patterned, and forms a first photo pattern. The base substrate having the first photo pattern is heated, and forms a first baked pattern. The metal layer is patterned using the first baked pattern, and forms a metal pattern.
    Type: Application
    Filed: April 7, 2009
    Publication date: January 14, 2010
    Applicants: Samsung Electronics Co., Ltd., AZ Electronic Materials(Japan) K.K.
    Inventors: Jeong-Min PARK, Jung-Soo LEE, Doo-Hee JUNG, Hi-Kuk LEE, Deok-Man KANG, Sae-Tae OH, Sang-Won SON, Young-Jin KIM
  • Publication number: 20090258497
    Abstract: A photoresist resin composition, a method for forming a pattern and a method for manufacturing a display panel using the photoresist resin composition are disclosed. The photoresist resin composition includes an alkali soluble resin, a photoresist compound, and a solvent, wherein the alkali soluble resin includes a first polymer resin represented by the following Chemical Formula 1, wherein, of R1, R2, R3, R4, R5 and R6, at least one is a hydroxyl group, at least two are methyl groups and any remaining groups are hydrogen, and of R7, R8, R9, R10 and R11, at least one is a hydroxyl group, at least two are methyl groups and any remaining groups are hydrogen.
    Type: Application
    Filed: February 19, 2009
    Publication date: October 15, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., AZ ELECTRONICS MATERIALS (JAPAN) K.K.
    Inventors: Jeong-Min Park, Doo-Hee Jung, Jung-Soo Lee, Hi-Kuk Lee, Sae-Tae Oh, Jae-Young Choi, Doek-Man Kang
  • Publication number: 20090215233
    Abstract: A photoresist composition includes a binder resin, a photo acid generator, an acryl resin having four different types of monomers, and a solvent.
    Type: Application
    Filed: December 3, 2008
    Publication date: August 27, 2009
    Applicants: Samsung Electronics Co., Ltd., AZ Electronic Materials(Japan) K.K.
    Inventors: Hi-Kuk Lee, Sang-Hyun Yun, Min-Soo Lee, Deok-Man Kang, Sae-Tae Oh, Jae-Young Choi
  • Patent number: 7172996
    Abstract: The present invention relates to a composition for cleaning a photoresist and is to provide a cleaning composition wherein the residue of the photoresist does not remain on the boundary surface between the cleaned area and the not-cleaned area after a negative photoresist containing pigment is cleaned, soft-baked, exposed and developed. The present invention provides a composition for cleaning a positive or negative photoresist which comprises (a) from 0.1 to 20 wt. % of and alkyl oxide polymer with a molecular weight of from 50 to 2000 and (b) from 80 to 99.9 wt. % of an organic solvent comprising: (b?1) from 1 to 20 parts by weight of dipropylene glycol methyl ether (DPGME), from 10 to 50 parts by weight of N-methyl pyrolidone (NMP) and from 50 to 90 parts by weight of methyl isobutyl ketone (MIBK), or (b?2) from 10 to 90 parts by weight of dimethyl formaldehyde (DMF) or dimethylacetamide (DMAc) and from 10 to 50 parts by weight of n-butyl acetate.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: February 6, 2007
    Assignee: Az Electronic Materials USA Corp.
    Inventors: Sae-Tae Oh, Doek-Man Kang, Kyung-Soo Choi
  • Publication number: 20050119142
    Abstract: The present invention relates to a composition for cleaning a photoresist and is to provide a cleaning composition wherein the residue of the photoresist does not remain on the boundary surface between the cleaned area and the not-cleaned area after a negative photoresist containing pigment is cleaned, soft-baked, exposed and developed. The present invention provides a composition for cleaning a positive or negative photoresist which comprises (a) from 0.1 to 20 wt. % of and alkyl oxide polymer with a molecular weight of from 50 to 2000 and (b) from 80 to 99.9 wt. % of an organic solvent comprising: (b?1) from 1 to 20 parts by weight of dipropylene glycol methyl ether (DPGME), from 10 to 50 parts by weight of N-methyl pyrolidone (NMP) and from 50 to 90 parts by weight of methyl isobutyl ketone (MIBK), or (b?2) from 10 to 90 parts by weight of dimethyl formaldehyde (DMF) or dimethylacetamide (DMAc) and from 10 to 50 parts by weight of n-butyl acetate.
    Type: Application
    Filed: January 9, 2003
    Publication date: June 2, 2005
    Inventors: Sae-Tae Oh, Doek-Man Kang, Kyung-Soo Choi
  • Patent number: 6645682
    Abstract: A thinner for rinsing photoresist including 50 to 80 wt. % of n-butyl acetate, propylene glycol alkyl ether, and propylene glycol alkyl ether acetate, is provided. The thinner is neither toxic to humans nor ecologically undesirable and has no unpleasant odor. The waste solutions thereof and associated waste water are easily handed so as to render this thinner environmental friendly. Additionally, the photoresist thinner of the present invention has excellent rinsing ability.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: November 11, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-Sick Park, Jin-Ho Ju, Yu-Kyung Lee, Sung-Chul Kang, Sae-Tae Oh, Doek-Man Kang
  • Publication number: 20030091942
    Abstract: A thinner for rinsing photoresist including 50 to 80 wt. % of n-butyl acetate, propylene glycol alkyl ether, and propylene glycol alkyl ether acetate, is provided. The thinner is neither toxic to humans nor ecologically undesirable and has no unpleasant odor. The waste solutions thereof and associated waste water are easily handed so as to render this thinner environmental friendly. Additionally, the photoresist thinner of the present invention has excellent rinsing ability.
    Type: Application
    Filed: June 25, 2002
    Publication date: May 15, 2003
    Inventors: Hong-Sick Park, Jin-Ho Ju, Yu-Kyung Lee, Sung-chul Kang, Sae-Tae Oh, Doek-Man Kang