Patents by Inventor Yong-Seok Ahn

Yong-Seok Ahn 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: 11594538
    Abstract: A semiconductor device includes a device isolation layer defining first and second active regions, a buried contact connected to the second active region, and first and second bit line structures disposed on the first and second active regions. Each of the first and second bit line structures comprises a bit line contact part and a bit line pass part. The bit line contact part is electrically connected to the first active region. The bit line pass part is disposed on the device isolation layer. A height of a lowest part of the buried contact is smaller than a height of a lowest part of the bit line pass part. The height of the lowest part of the buried contact is greater than a height of a lowest part of the bit line contact part. A lower end of the bit line pass part is buried in the second active region.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: February 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ho Lee, Eun A Kim, Ki Seok Lee, Jay-Bok Choi, Keun Nam Kim, Yong Seok Ahn, Jin-Hwan Chun, Sang Yeon Han, Sung Hee Han, Seung Uk Han, Yoo Sang Hwang
  • Patent number: 11393825
    Abstract: A semiconductor device includes a substrate having a cell region, a boundary region, a peripheral region sequentially arranged in a first direction, an active pattern extending in the cell region in a second direction forming a first acute angle with respect to the first direction, and a boundary pattern in the cell region and directly adjacent to the boundary region. The boundary pattern includes a first side surface extending in the second direction and a first boundary surface extending in a third direction, which is perpendicular to the first direction, from the first side surface, and the first boundary surface defines a boundary between the cell region and the boundary region.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jay-Bok Choi, Su Ji Ahn, Yong Seok Ahn, Seung Hyung Lee
  • Publication number: 20210408004
    Abstract: A semiconductor device includes a device isolation layer defining first and second active regions, a buried contact connected to the second active region, and first and second bit line structures disposed on the first and second active regions. Each of the first and second bit line structures comprises a bit line contact part and a bit line pass part. The bit line contact part is electrically connected to the first active region. The bit line pass part is disposed on the device isolation layer. A height of a lowest part of the buried contact is smaller than a height of a lowest part of the bit line pass part. The height of the lowest part of the buried contact is greater than a height of a lowest part of the bit line contact part. A lower end of the bit line pass part is buried in the second active region.
    Type: Application
    Filed: September 8, 2021
    Publication date: December 30, 2021
    Inventors: Sang Ho LEE, Eun A KIM, Ki Seok LEE, Jay-Bok CHOI, Keun Nam KIM, Yong Seok AHN, Jin-Hwan CHUN, Sang Yeon HAN, Sung Hee HAN, Seung Uk HAN, Yoo Sang HWANG
  • Patent number: 11121134
    Abstract: A semiconductor device includes a device isolation layer defining first and second active regions, a buried contact connected to the second active region, and first and second bit line structures disposed on the first and second active regions. Each of the first and second bit line structures comprises a bit line contact part and a bit line pass part. The bit line contact part is electrically connected to the first active region. The bit line pass part is disposed on the device isolation layer. A height of a lowest part of the buried contact is smaller than a height of a lowest part of the bit line pass part. The height of the lowest part of the buried contact is greater than a height of a lowest part of the bit line contact part. A lower end of the bit line pass part is buried in the second active region.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ho Lee, Eun A Kim, Ki Seok Lee, Jay-Bok Choi, Keun Nam Kim, Yong Seok Ahn, Jin-Hwan Chun, Sang Yeon Han, Sung Hee Han, Seung Uk Han, Yoo Sang Hwang
  • Publication number: 20210118886
    Abstract: A semiconductor device includes a substrate having a cell region, a boundary region, a peripheral region sequentially arranged in a first direction, an active pattern extending in the cell region in a second direction forming a first acute angle with respect to the first direction, and a boundary pattern in the cell region and directly adjacent to the boundary region. The boundary pattern includes a first side surface extending in the second direction and a first boundary surface extending in a third direction, which is perpendicular to the first direction, from the first side surface, and the first boundary surface defines a boundary between the cell region and the boundary region.
    Type: Application
    Filed: May 29, 2020
    Publication date: April 22, 2021
    Inventors: Jay-Bok CHOI, Su Ji AHN, Yong Seok AHN, Seung Hyung LEE
  • Publication number: 20210098460
    Abstract: A semiconductor device includes a device isolation layer defining first and second active regions, a buried contact connected to the second active region, and first and second bit line structures disposed on the first and second active regions. Each of the first and second bit line structures comprises a bit line contact part and a bit line pass part. The bit line contact part is electrically connected to the first active region. The bit line pass part is disposed on the device isolation layer. A height of a lowest part of the buried contact is smaller than a height of a lowest part of the bit line pass part. The height of the lowest part of the buried contact is greater than a height of a lowest part of the bit line contact part. A lower end of the bit line pass part is buried in the second active region.
    Type: Application
    Filed: April 28, 2020
    Publication date: April 1, 2021
    Inventors: Sang Ho LEE, Eun A KIM, Ki Seok LEE, Jay-Bok CHOI, Keun Nam KIM, Yong Seok AHN, Jin-Hwan CHUN, Sang Yeon HAN, Sung Hee HAN, Seung Uk HAN, Yoo Sang HWANG
  • Patent number: 7329918
    Abstract: A semiconductor memory device according to embodiments of the invention includes storage nodes and resistors. A method of manufacturing the semiconductor memory device according to some embodiments of the invention includes forming an interlayer insulation layer on a semiconductor substrate including a memory cell array area and a core/perimeter area; forming a first etch stop layer thereon; forming a plurality of contact plugs arranged linearly in at least one direction on the memory cell array area; forming a first conductive layer on the resultant structure; forming a second etch stop layer thereon; etching the second etch stop layer and the first conductive layer and forming landing pads and resistors arranged non-linearly in at least one direction; and forming storage nodes on the entire outer lateral surfaces of which are exposed, on the landing pads.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hyun Cho, Tae-Young Chung, Yong-Seok Ahn
  • Publication number: 20060211192
    Abstract: A semiconductor memory device according to embodiments of the invention includes storage nodes and resistors. A method of manufacturing the semiconductor memory device according to some embodiments of the invention includes forming an interlayer insulation layer on a semiconductor substrate including a memory cell array area and a core/perimeter area; forming a first etch stop layer thereon; forming a plurality of contact plugs arranged linearly in at least one direction on the memory cell array area; forming a first conductive layer on the resultant structure; forming a second etch stop layer thereon; etching the second etch stop layer and the first conductive layer and forming landing pads and resistors arranged non-linearly in at least one direction; and forming storage nodes on the entire outer lateral surfaces of which are exposed, on the landing pads.
    Type: Application
    Filed: May 22, 2006
    Publication date: September 21, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun Cho, Tae-Young Chung, Yong-Seok Ahn
  • Patent number: 7074667
    Abstract: A semiconductor memory device according to embodiments of the invention includes storage nodes and resistors. A method of manufacturing the semiconductor memory device according to some embodiments of the invention includes forming an interlayer insulation layer on a semiconductor substrate including a memory cell array area and a core/perimeter area; forming a first etch stop layer thereon; forming a plurality of contact plugs arranged linearly in at least one direction on the memory cell array area; forming a first conductive layer on the resultant structure; forming a second etch stop layer thereon; etching the second etch stop layer and the first conductive layer and forming landing pads and resistors arranged non-linearly in at least one direction; and forming storage nodes on the entire outer lateral surfaces of which are exposed, on the landing pads.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: July 11, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hyun Cho, Tae-Young Chung, Yong-Seok Ahn
  • Publication number: 20040229428
    Abstract: A semiconductor memory device according to embodiments of the invention includes storage nodes and resistors. A method of manufacturing the semiconductor memory device according to some embodiments of the invention includes forming an interlayer insulation layer on a semiconductor substrate including a memory cell array area and a core/perimeter area; forming a first etch stop layer thereon; forming a plurality of contact plugs arranged linearly in at least one direction on the memory cell array area; forming a first conductive layer on the resultant structure; forming a second etch stop layer thereon; etching the second etch stop layer and the first conductive layer and forming landing pads and resistors arranged non-linearly in at least one direction; and forming storage nodes on the entire outer lateral surfaces of which are exposed, on the landing pads.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 18, 2004
    Inventors: Chang-Hyun Cho, Tae-Young Chung, Yong-Seok Ahn