Patents by Inventor Woon Hyuk Choi

Woon Hyuk Choi 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: 11054736
    Abstract: A method of manufacturing an extreme ultraviolet (EUV) mask, for use in an EUV exposure process, on a mask substrate includes constructing a first monitoring macro considering an effect caused by a slit used in the EUV exposure process, performing an optical proximity correction (OPC) using a plurality of second monitoring macros, wherein each of the plurality of second monitoring macros is substantially identical to the first monitoring macro, inputting mask tape-out (MTO) design data acquired through the OPC, preparing mask data including at least one of data format conversion, mask process correction (MPC), and job-deck for the MTO design data, and performing EUV exposure (writing) on the mask substrate based on the mask data.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: July 6, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woon-hyuk Choi, No-young Chung
  • Publication number: 20190163048
    Abstract: A method of manufacturing an extreme ultraviolet (EUV) mask, for use in an EUV exposure process, on a mask substrate includes constructing a first monitoring macro considering an effect caused by a slit used in the EUV exposure process, performing an optical proximity correction (OPC) using a plurality of second monitoring macros, wherein each of the plurality of second monitoring macros is substantially identical to the first monitoring macro, inputting mask tape-out (MTO) design data acquired through the OPC, preparing mask data including at least one of data format conversion, mask process correction (MPC), and job-deck for the MTO design data, and performing EUV exposure (writing) on the mask substrate based on the mask data.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 30, 2019
    Inventors: Woon-hyuk CHOI, No-young CHUNG
  • Patent number: 7505250
    Abstract: The present invention discloses a carbon-porous media composite electrode material, a composite electrode using the same and a preparation method thereof. The carbon-porous media composite electrode can be applied for a device such as a secondary battery, a capacitor or the like, or for preparing ultra pure water using a capacitive deionization process, purifying salty water or the like.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: March 17, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Byung Won Cho, Won Il Cho, Dong Jin Suh, Chun Mo Yang, Woon Hyuk Choi