Patents by Inventor Il-Sup Choi

Il-Sup 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: 10892142
    Abstract: A system for fabricating a semiconductor device may include a chamber, an electrostatic chuck used to load a substrate, a power source supplying an RF power to the electrostatic chuck, an impedance matcher between the power source and the electrostatic chuck, and a power transmission unit connecting the electrostatic chuck to the impedance matcher. The power transmission unit may include a power rod, which is connected to the electrostatic chuck and has a first outer diameter, and a coaxial cable. The coaxial cable may include an inner wire, an outer wire, and a dielectric material between the outer and inner wires. The inner wire connects the power rod to the impedance matcher and has a second outer diameter less than the first outer diameter. The outer wire is connected to the chamber and is provided to enclose the inner wire and has a first inner diameter less than the first outer diameter and greater than the second outer diameter.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: January 12, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangjean Jeon, Jinyoung Park, Chanhoon Park, Hoyong Park, Jin Young Bang, JungHwan Um, Il Sup Choi, Je-Woo Han
  • Publication number: 20190287766
    Abstract: A system for fabricating a semiconductor device may include a chamber, an electrostatic chuck used to load a substrate, a power source supplying an RF power to the electrostatic chuck, an impedance matcher between the power source and the electrostatic chuck, and a power transmission unit connecting the electrostatic chuck to the impedance matcher. The power transmission unit may include a power rod, which is connected to the electrostatic chuck and has a first outer diameter, and a coaxial cable. The coaxial cable may include an inner wire, an outer wire, and a dielectric material between the outer and inner wires. The inner wire connects the power rod to the impedance matcher and has a second outer diameter less than the first outer diameter. The outer wire is connected to the chamber and is provided to enclose the inner wire and has a first inner diameter less than the first outer diameter and greater than the second outer diameter.
    Type: Application
    Filed: November 7, 2018
    Publication date: September 19, 2019
    Inventors: SANGJEAN JEON, Jinyoung PARK, CHANHOON PARK, Hoyong PARK, JIN YOUNG BANG, JungHwan UM, IL SUP CHOI, Je-Woo HAN
  • Patent number: 9177841
    Abstract: An exemplary embodiment of the present invention discloses a coating apparatus including a stage configured to receive a substrate and a coating slit part. The coating slit part includes a guide member, a first body, a second body, and a discharge nozzle. The coating slit part is configured to dispose a coating material on the substrate.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gil-Hwan Yeo, Dong-Hwan Kim, Sung-Ku Baek, Chan-Uk Jon, Il-Sup Choi
  • Publication number: 20130319608
    Abstract: A method of coating an electrolyte layer on a substrate includes forming a hydrophobic layer on an upper surface of the substrate that has a coating area, forming a hydrophilic region having a shape surrounding an outside of the coating area, and forming the electrolyte layer to cover the hydrophobic layer and the hydrophilic region.
    Type: Application
    Filed: February 11, 2013
    Publication date: December 5, 2013
    Inventors: Il-Sup CHOI, Sin KWON, Sung-Gun LEE, Joong-Ha LEE, Sang-Jin CHOI, Dong-Woo PAENG
  • Publication number: 20130260045
    Abstract: An exemplary embodiment of the present invention discloses a coating apparatus including a stage configured to receive a substrate and a coating slit part. The coating slit part includes a guide member, a first body, a second body, and a discharge nozzle. The coating slit part is configured to dispose a coating material on the substrate.
    Type: Application
    Filed: September 21, 2012
    Publication date: October 3, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gil-Hwan YEO, Dong-Hwan KIM, Sung-Ku BAEK, Chan-Uk JON, Il-Sup CHOI
  • Publication number: 20060266792
    Abstract: A multi-chip die bonder may include a first substrate conveyor conveying a substrate in a first direction and a second substrate conveyor conveying a substrate in a second direction. A plurality of dies may be stacked onto the substrate while the substrate is circulating the first substrate conveyor and the second substrate conveyor. A first heater may be provided in a die bonding unit and a second heater may be provided in the first substrate conveyor. An adhesive curing process may be performed together with a die attaching process.
    Type: Application
    Filed: October 24, 2005
    Publication date: November 30, 2006
    Inventors: Youn-Sung Ko, Choo-Ho Kim, Hyun-Ho Kim, Yong-Kyun Sun, Byung-Joon Lee, Il-Sup Choi, Jung-Hwan Woo