Patents by Inventor Min Kyu CHU

Min Kyu CHU 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: 10510517
    Abstract: A cleaning apparatus of an exhaust path of a process reaction chamber used in a manufacturing of articles including a semiconductor or an LCD. The cleaning apparatus of the exhaust path includes a housing having an inflow pipe, connected to an upstream end of the exhaust path, an outflow pipe, connected to a downstream end of the exhaust path, and a connecting pipe disposed between the inflow pipe and the outflow pipe. A radio frequency generator in the housing applies radio frequency power to the inflow pipe and to the outflow pipe via respective coils. Plasma induced within the inflow and outflow pipes from RF power applied via the respective coils causes the generation of radicals from the exhaust gas flowing within. The radicals act to dislodge accumulated particulates within the exhaust path downstream of the cleaning apparatus.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 17, 2019
    Assignee: RETRO-SEMI TECHNOLOGIES, LLC
    Inventors: Dong-Soo Kim, Min-Su Joo, Min Kyu Chu
  • Publication number: 20190180990
    Abstract: A cleaning apparatus of an exhaust path of a process reaction chamber used in a manufacturing of articles including a semiconductor or an LCD. The cleaning apparatus of the exhaust path includes a housing having an inflow pipe, connected to an upstream end of the exhaust path, an outflow pipe, connected to a downstream end of the exhaust path, and a connecting pipe disposed between the inflow pipe and the outflow pipe. A radio frequency generator in the housing applies radio frequency power to the inflow pipe and to the outflow pipe via respective coils. Plasma induced within the inflow and outflow pipes from RF power applied via the respective coils causes the generation of radicals from the exhaust gas flowing within. The radicals act to dislodge accumulated particulates within the exhaust path downstream of the cleaning apparatus.
    Type: Application
    Filed: January 26, 2017
    Publication date: June 13, 2019
    Inventors: Dong-Soo KIM, Min-Su JOO, Min Kyu CHU
  • Publication number: 20170221683
    Abstract: A cleaning apparatus of an exhaust path of a process reaction chamber used in a manufacturing of articles including a semiconductor or an LCD. The cleaning apparatus of the exhaust path includes a housing having an inflow pipe, connected to an upstream end of the exhaust path, an outflow pipe, connected to a downstream end of the exhaust path, and a connecting pipe disposed between the inflow pipe and the outflow pipe. A radio frequency generator in the housing applies radio frequency power to the inflow pipe and to the outflow pipe via respective coils. Plasma induced within the inflow and outflow pipes from RF power applied via the respective coils causes the generation of radicals from the exhaust gas flowing within. The radicals act to dislodge accumulated particulates within the exhaust path downstream of the cleaning apparatus.
    Type: Application
    Filed: January 26, 2017
    Publication date: August 3, 2017
    Inventors: Dong-Soo KIM, Min-Su JOO, Min Kyu CHU