Patents by Inventor Sang Du Lee

Sang Du Lee 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: 20230235455
    Abstract: The present disclosure relates to an apparatus for processing a substrate, and more particularly, to an apparatus for processing a substrate, which deposits a thin-film on a substrate. The apparatus for processing a substrate in accordance with an exemplary embodiment includes a plurality of source gas supply units configured to respectively supply a plurality of source gases among which at least one contains (3-Dimethylaminopropyl)Dimethylindium (DADI), a gas mixing unit connected to each of the plurality of source gas supply units and having an inner space in which each of the plurality of source gases moves at a passing speed less than a supply speed of each of the plurality of source gases, and a chamber connected with the gas mixing unit and having a reaction space to which the source gases mixed in the inner space are supplied.
    Type: Application
    Filed: August 6, 2021
    Publication date: July 27, 2023
    Inventors: Duck Ho KIM, Hyun Ho KOO, Chang Su MHA, Ae Jung PARK, Sang Du LEE, Min Seok CHAE
  • Patent number: 11551913
    Abstract: The present inventive concept relates to a substrate treatment apparatus comprising: a support part for supporting a substrate; a first electrode part disposed above the support part; a second electrode part disposed above the first electrode part; a generation hole formed to extend through the first electrode part; and a protruding electrode coupled to the second electrode part while protruding downward from the second electrode part at a position corresponding to the generation hole, wherein the protruding electrode is formed to have a shorter length than the first electrode part in the vertical direction.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: January 10, 2023
    Inventors: Woong Kyo Oh, Hyun Ho Koo, Kwang Su Yoo, Sang Du Lee, Kyu jung Cho
  • Patent number: 11011731
    Abstract: The present inventive concept provides a moisture prevention film including: a first moisture prevention film; a second moisture prevention film formed on the first moisture prevention film; and a third moisture prevention film formed on the second moisture prevention film, wherein a concentration of oxygen (O) of the second moisture prevention film is higher than a concentration of oxygen of each of the first moisture prevention film and the third moisture prevention film, a method of manufacturing the moisture prevention film, and an organic light emitting device including the moisture prevention film.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: May 18, 2021
    Inventors: Kyeong Min Kim, Bong Sik Kim, Sang Du Lee, Won Tae Cho
  • Publication number: 20200357613
    Abstract: The present inventive concept relates to a substrate treatment apparatus comprising: a support part for supporting a substrate; a first electrode part disposed above the support part; a second electrode part disposed above the first electrode part; a generation hole formed to extend through the first electrode part; and a protruding electrode coupled to the second electrode part while protruding downward from the second electrode part at a position corresponding to the generation hole, wherein the protruding electrode is formed to have a shorter length than the first electrode part in the vertical direction.
    Type: Application
    Filed: January 29, 2019
    Publication date: November 12, 2020
    Inventors: WOONG KYO OH, Hyun Ho KOO, Kwang Su YOO, Sang Du LEE, Kyu jung CHO
  • Publication number: 20190355934
    Abstract: The present inventive concept provides a moisture prevention film including: a first moisture prevention film; a second moisture prevention film formed on the first moisture prevention film; and a third moisture prevention film formed on the second moisture prevention film, wherein a concentration of oxygen (O) of the second moisture prevention film is higher than a concentration of oxygen of each of the first moisture prevention film and the third moisture prevention film, a method of manufacturing the moisture prevention film, and an organic light emitting device including the moisture prevention film.
    Type: Application
    Filed: January 2, 2018
    Publication date: November 21, 2019
    Applicant: Jusung Engineering Co., Ltd.
    Inventors: Kyeong Min KIM, Bong Sik KIM, Sang Du LEE, Won Tae CHO
  • Publication number: 20180130674
    Abstract: Disclosed are an apparatus and method for processing a substrate. The apparatus includes a chamber, a susceptor disposed in a lower portion of the chamber, a chamber lid disposed on the susceptor, a first source gas distributor installed in the chamber lid to distribute a source gas, a second source gas distributor installed in the chamber lid to distribute a source gas, and a first purge gas distributor installed in the chamber lid to distribute a purge gas. At least one substrate is disposed on the susceptor, and the first purge gas distributor is installed between the first and second source gas distributors.
    Type: Application
    Filed: April 18, 2016
    Publication date: May 10, 2018
    Inventors: Tae Seong HAN, Dae Bong KANG, Jae Chan KWAK, Ka Lam KIM, Doo Young KIM, Dong Won SEO, Sang Du LEE, Seong Kwang LEE, Byoung Ha CHO, Dong Seok CHUN, Chul-Joo HWANG
  • Patent number: 9202965
    Abstract: A method for manufacturing a solar cell capable of significantly reducing the amount of wastewater generated during a wet-etching process and improving the efficiency of the solar cell. A method comprising: texturing to form an uneven structure on one semiconductor substrate surface by etching the semiconductor substrate surface with a texturing device; forming a temporary layer at an upper portion of the semiconductor substrate surface to surround a first byproduct layer formed at a predetermined region of the semiconductor substrate surface during the texturing; and doping the semiconductor substrate surface with a predetermined dopant using a doping device to form a first semiconductor layer and a second semiconductor layer disposed above the first semiconductor layer and having a different polarity than the first semiconductor layer. The first byproduct layer and the temporary layer are simultaneously removed.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: December 1, 2015
    Assignee: JUSUNG ENGINEERING CO., LTD.
    Inventors: Sang Du Lee, Joung Sik Kim, Joung Ho Ahn, Rae Wook Jeong, Byung Wook Jung, Beop Jong Jin
  • Publication number: 20140302620
    Abstract: A method for manufacturing a solar cell capable of significantly reducing the amount of wastewater generated during a wet-etching process and improving the efficiency of the solar cell. A method comprising: texturing to form an uneven structure on one semiconductor substrate surface by etching the semiconductor substrate surface with a texturing device; forming a temporary layer at an upper portion of the semiconductor substrate surface to surround a first byproduct layer formed at a predetermined region of the semiconductor substrate surface during the texturing; and doping the semiconductor substrate surface with a predetermined dopant using a doping device to form a first semiconductor layer and a second semiconductor layer disposed above the first semiconductor layer and having a different polarity than the first semiconductor layer. The first byproduct layer and the temporary layer are simultaneously removed.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 9, 2014
    Inventors: Sang Du Lee, Joung Sik Kim, Joung Ho Ahn, Rae Wook Jeong, Byung Wook Jung, Beop Jong Jin