Patents by Inventor Ul Kyu SEO

Ul Kyu SEO 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: 10644121
    Abstract: The description relates to a semiconductor die having a stacking structure of silicon-metallic conductive layer-silicon, and the semiconductor die according to embodiments includes a stacking structure of first semiconductor layer-metallic conductive layer-second semiconductor layer, and first and second power semiconductor devices in the first semiconductor layer, in which the first power semiconductor device includes a first source bump and a first gate bump, first trench gate electrodes under the first source bump, and a first channel among the plurality of first trench gate electrodes, in which the second power semiconductor device includes a second source bump and a second gate bump, second trench gate electrodes under the second source bump, and a second channel among the plurality of second trench gate electrodes, and in which the metallic conductive layer includes a metal layer.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 5, 2020
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Myung Ho Park, Ul Kyu Seo, Young Ho Seo, Jae Sik Choi
  • Publication number: 20190207005
    Abstract: The description relates to a semiconductor die having a stacking structure of silicon-metallic conductive layer-silicon, and the semiconductor die according to embodiments includes a stacking structure of first semiconductor layer-metallic conductive layer-second semiconductor layer, and first and second power semiconductor devices in the first semiconductor layer, in which the first power semiconductor device includes a first source bump and a first gate bump, first trench gate electrodes under the first source bump, and a first channel among the plurality of first trench gate electrodes, in which the second power semiconductor device includes a second source bump and a second gate bump, second trench gate electrodes under the second source bump, and a second channel among the plurality of second trench gate electrodes, and in which the metallic conductive layer includes a metal layer.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 4, 2019
    Applicant: MagnaChip Semiconductor, Ltd.
    Inventors: Myung Ho PARK, Ul Kyu SEO, Young Ho SEO, Jae Sik CHOI
  • Publication number: 20190019871
    Abstract: The description relates to a semiconductor die having a stacking structure of silicon-metallic conductive layer-silicon, and the semiconductor die according to embodiments includes a stacking structure of first semiconductor layer-metallic conductive layer-second semiconductor layer, and first and second power semiconductor devices in the first semiconductor layer, in which the first power semiconductor device includes a first source bump and a first gate bump, first trench gate electrodes under the first source bump, and a first channel among the plurality of first trench gate electrodes, in which the second power semiconductor device includes a second source bump and a second gate bump, second trench gate electrodes under the second source bump, and a second channel among the plurality of second trench gate electrodes, and in which the metallic conductive layer includes a metal layer.
    Type: Application
    Filed: February 21, 2018
    Publication date: January 17, 2019
    Applicant: MagnaChip Semiconductor, Ltd.
    Inventors: Myung Ho PARK, Ul Kyu SEO, Young Ho SEO, Jae Sik CHOI