Patents by Inventor Hong-kwon Youn

Hong-kwon Youn 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).

  • Methods of manufacturing integrated circuit devices by using photomask cleaning compositions
    Patent number: 9507255
    Abstract: In a method of manufacturing an integrated circuit (IC) device, a photomask is wet-processed using a cleaning composition comprising an organic acid, an oxidizing agent, and deionized water (DIW).
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: November 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-young Kim, Dong-min Kang, Sung-bae Kim, Hoon Han, Hong-kwon Youn, Hyo-sun Lee, Young-taek Hong
  • METHODS OF MANUFACTURING INTEGRATED CIRCUIT DEVICES BY USING PHOTOMASK CLEANING COMPOSITIONS
    Publication number: 20160116836
    Abstract: In a method of manufacturing an integrated circuit (IC) device, a photomask is wet-processed using a cleaning composition comprising an organic acid, an oxidizing agent, and deionized water (DIW).
    Type: Application
    Filed: June 25, 2015
    Publication date: April 28, 2016
    Inventors: Ho-young Kim, Dong-min Kang, Sung-bae Kim, Hoon Han, Hong-kwon Youn, Hyo-sun Lee, Young-taek Hong