Patents by Inventor CHUNG-SEOK OH

CHUNG-SEOK 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).

  • Publication number: 20150027376
    Abstract: A deposition film forming apparatus including rotary members includes a plurality of substrate supports, wherein a plurality of substrates are disposed on each of the substrate supports, and each of the substrates is rotated on the substrate supports by means of a gas-foil method.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 29, 2015
    Inventors: Chung Seok OH, Yoo Jin LEE, Jae Hak LEE
  • Publication number: 20120187445
    Abstract: Disclosed is a method for manufacturing a template. The method includes growing a first nitride layer containing a Group-III material on a substrate; forming a plurality of etch barriers having different etching characteristics from the first nitride layer on the first nitride layer; forming a pillar-shaped nano structure by etching the first nitride layer in a pattern of the etch barriers using a chloride-based gas; and forming the nitride buffer layer having a plurality of voids formed therein by growing a second nitride layer on top of the nano structure. A method for manufacturing a nitride-based semiconductor light emitting device using the template is also disclosed.
    Type: Application
    Filed: July 25, 2011
    Publication date: July 26, 2012
    Applicants: SEMIMATERIALS CO., LTD.
    Inventors: CHUNG-SEOK OH, Sung-Hwan Jang, Ho-Il Jung, Chi-Kwon Park, Kun Park
  • Publication number: 20120187444
    Abstract: Disclosed herein is a method for manufacturing a template. The method includes growing a first nitride layer on a substrate; etching a top surface of the first nitride layer by supplying a chloride-based etching gas thereto; forming a plurality of first voids by growing a second nitride layer on the top surface of the first nitride layer; etching a top surface of the second nitride layer by supplying the etching gas thereto; and forming a plurality of second voids by growing a third nitride layer on the top surface of the second nitride layer. A method for manufacturing a nitride-based semiconductor light emitting device using the template is also disclosed. As a result, stress between lattices and dislocation defects are reduced by a plurality of voids formed in a nitride buffer layer, thereby improving quality of nitride layers grown in a template.
    Type: Application
    Filed: July 24, 2011
    Publication date: July 26, 2012
    Applicants: SEMIMATERIALS CO., LTD.
    Inventors: CHUNG-SEOK OH, Sung-Hwan Jang, Ho-Il Jung, Chi-Kwon Park, Kun Park