Patents by Inventor Joon-Yeon Cho

Joon-Yeon Cho 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: 20230236509
    Abstract: The present invention pertains to a spin coating composition comprising a carbon material and a metal organic compound. The invention also pertains to a method of using the same to form a metal oxide film above a substrate and manufacturing a device.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 27, 2023
    Inventors: Takashi SEKITO, Joon Yeon CHO
  • Publication number: 20120251943
    Abstract: The invention relates to an antireflective coating composition comprising a crosslinker and a crosslinkable polymer capable of being crosslinked by the crosslinker, where the crosslinkable polymer comprises a unit represented by structure (1): ?A-B—C???(1) where A is a fused aromatic ring, B has a structure (2), and C is a hydroxybiphenyl of structure (3) where R1 is C1-C4alkyl and R2 is C1-C4alkyl. The invention further relates to a process for forming an image using the composition.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Inventors: M. Dalil Rahman, Douglas McKenzie, Jianhui Shan, Joon Yeon Cho, Salem K. Mullen
  • Publication number: 20110200938
    Abstract: A novel antireflective coating composition is provided, said antireflective coating composition comprising a) a compound of formula 1, b) a thermal acid generator, (c) at least one polymer, wherein U1 and U2 are independently a C1-C10 alkylene group; V is selected from a C1-C10 alkylene, arylene and aromatic alkylene; W is selected from H, C1-C10 alkyl, aryl, alkylaryl and V—OH; Y is selected from H, W, and U3C(O)OW, wherein U3 is independently a C1-C10 alkylene group, and m is 1 to 10. Also provided are methods using said compositions as antireflective coatings for substrates in lithographic processes.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Inventors: Huirong Yao, Guanyang Lin, Jianhui Shan, Joon Yeon Cho, Salem K. Mullen
  • Publication number: 20100092894
    Abstract: Antireflective coating compositions are discussed.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Inventors: Weihong Liu, Guanyang Lin, Joon Yeon Cho, Jian Yin, Salem K. Mullen, Mark Neisser
  • Patent number: 7241684
    Abstract: A method for forming a metal wiring of a semiconductor device. The method includes forming an etch stop layer on a semiconductor substrate, forming a first inter metal dielectric on the etch stop layer, and forming a second inter metal dielectric on the first inter metal dielectric. The method also includes forming a first photoresist pattern defining a via hole on the second inter metal dielectric, forming a via hole exposing the etch stop layer using the first photo resist pattern, and forming a second photoresist pattern defining a trench by exposing and developing the first photoresist pattern. The method further includes forming a trench by etching the second inter metal dielectric using the second photoresist pattern as a mask, removing the etch stop layer exposed through the via hole, and forming a metal wiring by filling the via hole and the trench.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: July 10, 2007
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Joon-Yeon Cho
  • Patent number: 7101650
    Abstract: The present invention relates to a photosensitive resin composition for use as a photoresist, and more particularly, to a photosensitive resin composition for a photoresist comprising an acrylate copolymer obtained by selectively using specific compounds or controlling the ratio of unreacted monomers, and a 1,2-quinonediazide compound, which is excellent in several performance factors such as dielectric characteristics, flatness, transparency, developing performance, residual film rate, chemical resistance, and heat resistance, as well as sensitivity and resolution, and in particular it facilitates easy pattern formation into interlayer dielectrics, and it can be used as a photoresist in an LCD manufacturing process due to its excellent transmissivity even when prepared as a thick film.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: September 5, 2006
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Byung-Uk Kim, Joon-Yeon Cho, Kyong-Il Kwon, Soo-Jung Park, Jae-Won Yoo
  • Publication number: 20050142850
    Abstract: A method for forming a metal wiring of a semiconductor device. The method includes forming an etch stop layer on a semiconductor substrate, forming a first inter metal dielectric on the etch stop layer, and forming a second inter metal dielectric on the first inter metal dielectric. The method also includes forming a first photoresist pattern defining a via hole on the second inter metal dielectric, forming a via hole exposing the etch stop layer using the first photo resist pattern, and forming a second photoresist pattern defining a trench by exposing and developing the first photoresist pattern. The method further includes forming a trench by etching the second inter metal dielectric using the second photoresist pattern as a mask, removing the etch stop layer exposed through the via hole, and forming a metal wiring by filling the via hole and the trench.
    Type: Application
    Filed: December 30, 2004
    Publication date: June 30, 2005
    Applicant: DongbuAnam Semiconductor Inc.
    Inventor: Joon-Yeon Cho
  • Publication number: 20050064321
    Abstract: The present invention relates to an LCD circuit photoresist composition for manufacturing fine circuit patterns on liquid crystal display circuits or semiconductor integrated circuits, and more particularly, and LCD circuit photoresist composition including (a) mixed polymer resins comprising a novolak resin with a molecular weight ranging from 3,000 to 9,000 and a fractionated novolak resin with a molecular weight ranging from 3,500 to 10,000; (b) a diazide-type photosensitive compound; (c) a photosensitizer; and (d) organic solvents. An LCD circuit photoresist composition of the present invention has excellent photosensitivity, retention ratio, resolution, contrast, heat resistance, adhesion, and stripper solubility, thus this photoresist composition can be easily applied to industrial work places for better working environments.
    Type: Application
    Filed: October 21, 2002
    Publication date: March 24, 2005
    Inventors: Hoon Kang, Joon-Yeon Cho, Dong-Min Kim, Seung-Uk Lee
  • Publication number: 20050042536
    Abstract: The present invention relates to a positive photosensitive resin composition for use in an LCD manufacturing process, and more particularly, to a composition comprising an alkali-soluble resin and novel quinonediazide sulfonic ester compound that has excellent development properties, leaves little residue, and has good chemical resistance, etc, and is also easily patterned and has high transmissivity, and thus is suitable for forming inter-insulating layers in LCDs and in integrated circuit devices.
    Type: Application
    Filed: October 21, 2002
    Publication date: February 24, 2005
    Inventors: Joon-Yeon Cho, Kyong-Il Kwon, Soo-Jung Park
  • Publication number: 20040248030
    Abstract: The present invention relates to a photosensitive resin composition for use as a photoresist, and more particularly, to a photosensitive resin composition for a photoresist comprising an acrylate copolymer obtained by selectively using specific compounds or controlling the ratio of unreacted monomers, and a 1,2-quinonediazide compound, which is excellent in several performance factors such as dielectric characteristics, flatness, transparency, developing performance, residual film rate, chemical resistance, and heat resistance, as well as sensitivity and resolution, and in particular it facilitates easy pattern formation into interlayer dielectrics, and it can be used as a photoresist in an LCD manufacturing process due to its excellent transmissivity even when prepared as a thick film.
    Type: Application
    Filed: February 18, 2004
    Publication date: December 9, 2004
    Inventors: Byung-Uk Kim, Joon-Yeon Cho, Kyong-Ii Kwon, Soo-Jung Park, Iae-Won Yoo