Patents by Inventor James Heejun PARK

James Heejun 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).

  • Patent number: 9448483
    Abstract: Pattern shrink methods comprise: (a) providing a semiconductor substrate comprising one or more layers to be patterned; (b) providing a resist pattern over the one or more layers to be patterned; (c) coating a shrink composition over the pattern, wherein the shrink composition comprises a polymer and an organic solvent, wherein the polymer comprises a group containing a hydrogen acceptor effective to form a bond with an acid group and/or an alcohol group at a surface of the resist pattern, and wherein the composition is free of crosslinkers; and (d) rinsing residual shrink composition from the substrate, leaving a portion of the polymer bonded to the resist pattern. Also provided are pattern shrink compositions, and coated substrates and electronic devices formed by the methods. The invention find particular applicability in the manufacture of semiconductor devices for providing high resolution patterns.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: September 20, 2016
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Phillip D. Hustad, Jong Keun Park, Jin Wuk Sung, James Heejun Park
  • Publication number: 20160033869
    Abstract: Pattern shrink methods comprise: (a) providing a semiconductor substrate comprising one or more layers to be patterned; (b) providing a resist pattern over the one or more layers to be patterned; (c) coating a shrink composition over the pattern, wherein the shrink composition comprises a polymer and an organic solvent, wherein the polymer comprises a group containing a hydrogen acceptor effective to form a bond with an acid group and/or an alcohol group at a surface of the resist pattern, and wherein the composition is free of crosslinkers; and (d) rinsing residual shrink composition from the substrate, leaving a portion of the polymer bonded to the resist pattern. Also provided are pattern shrink compositions, and coated substrates and electronic devices formed by the methods. The invention find particular applicability in the manufacture of semiconductor devices for providing high resolution patterns.
    Type: Application
    Filed: May 29, 2015
    Publication date: February 4, 2016
    Inventors: Phillip D. HUSTAD, Jong Keun PARK, Jin Wuk SUNG, James Heejun PARK