Patents by Inventor Chia-Sheng FAN

Chia-Sheng FAN 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: 20230377982
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 23, 2023
    Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
  • Publication number: 20230378175
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 23, 2023
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Patent number: 11798942
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: October 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Patent number: 11742244
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: August 29, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
  • Publication number: 20210249409
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Application
    Filed: April 26, 2021
    Publication date: August 12, 2021
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Patent number: 11043572
    Abstract: Provided is a metal gate structure and related methods that include forming a first fin and a second fin on a substrate. In various embodiments, the first fin has a first gate region and the second fin has a second gate region. By way of example, a metal-gate line is formed over the first and second gate regions. In some embodiments, the metal-gate line extends from the first fin to the second fin, and the metal-gate line includes a sacrificial metal portion. In various examples, a line-cut process is performed to separate the metal-gate line into a first metal gate line and a second gate line. In some embodiments, the sacrificial metal portion prevents lateral etching of a dielectric layer during the line-cut process.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: June 22, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Chia-Sheng Fan
  • Patent number: 10991691
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 27, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Publication number: 20210082769
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Application
    Filed: November 9, 2020
    Publication date: March 18, 2021
    Inventors: Chia-Sheng FAN, Chun-Yen LIN, Tung-Heng HSIEH, Bao-Ru YOUNG
  • Patent number: 10832958
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: November 10, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
  • Publication number: 20200152757
    Abstract: Provided is a metal gate structure and related methods that include forming a first fin and a second fin on a substrate. In various embodiments, the first fin has a first gate region and the second fin has a second gate region. By way of example, a metal-gate line is formed over the first and second gate regions. In some embodiments, the metal-gate line extends from the first fin to the second fin, and the metal-gate line includes a sacrificial metal portion. In various examples, a line-cut process is performed to separate the metal-gate line into a first metal gate line and a second gate line. In some embodiments, the sacrificial metal portion prevents lateral etching of a dielectric layer during the line-cut process.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Tzung-Chi LEE, Tung-Heng HSIEH, Bao-Ru YOUNG, Chia-Sheng FAN
  • Publication number: 20200135726
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 30, 2020
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Patent number: 10535746
    Abstract: Provided is a metal gate structure and related methods that include forming a first fin and a second fin on a substrate. In various embodiments, the first fin has a first gate region and the second fin has a second gate region. By way of example, a metal-gate line is formed over the first and second gate regions. In some embodiments, the metal-gate line extends from the first fin to the second fin, and the metal-gate line includes a sacrificial metal portion. In various examples, a line-cut process is performed to separate the metal-gate line into a first metal gate line and a second gate line. In some embodiments, the sacrificial metal portion prevents lateral etching of a dielectric layer during the line-cut process.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: January 14, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Chia-Sheng Fan
  • Patent number: 10515957
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 24, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Publication number: 20190259664
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Inventors: Chia-Sheng FAN, Chun-Yen LIN, Tung-Heng HSIEH, Bao-Ru YOUNG
  • Patent number: 10354997
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 16, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Patent number: 10276445
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 30, 2019
    Assignee: Taiwan Semiconductor Manfacturing Co., Ltd.
    Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
  • Publication number: 20190067116
    Abstract: A method and structure for mitigating leakage current in devices that include a continuous active region. In some embodiments, a threshold voltage at the cell boundary is increased by changing a photomask logic operation (LOP) to reverse a threshold voltage type at the cell boundary. Alternatively, in some cases, the threshold voltage at the cell boundary is increased by performing a threshold voltage implant (e.g., an ion implant) at the cell boundary, and into a dummy gate disposed at the cell boundary. Further, in some embodiments, the threshold voltage at the cell boundary is increased by use of a silicon germanium (SiGe) channel at the cell boundary. In some cases, the SiGe may be disposed within the substrate at the cell boundary and/or the SiGe may be part of the dummy gate disposed at the cell boundary.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventors: Chia-Sheng FAN, Chun-Yen LIN, Tung-Heng HSIEH, Bao-Ru YOUNG
  • Publication number: 20180337178
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
  • Publication number: 20180331199
    Abstract: Provided is a metal gate structure and related methods that include forming a first fin and a second fin on a substrate. In various embodiments, the first fin has a first gate region and the second fin has a second gate region. By way of example, a metal-gate line is formed over the first and second gate regions. In some embodiments, the metal-gate line extends from the first fin to the second fin, and the metal-gate line includes a sacrificial metal portion. In various examples, a line-cut process is performed to separate the metal-gate line into a first metal gate line and a second gate line. In some embodiments, the sacrificial metal portion prevents lateral etching of a dielectric layer during the line-cut process.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Tzung-Chi LEE, Tung-Heng HSIEH, Bao-Ru YOUNG, Chia-Sheng FAN
  • Publication number: 20180315752
    Abstract: A semiconductor device and method includes: forming a first fin and a second fin on a substrate; forming a dummy gate material over the first fin and the second fin; forming a recess in the dummy gate material between the first fin and the second fin; forming a sacrificial oxide on sidewalls of the dummy gate material in the recess; filling an insulation material between the sacrificial oxide on the sidewalls of the dummy gate material in the recess; removing the dummy gate material and the sacrificial oxide; and forming a first replacement gate over the first fin and a second replacement gate over the second fin.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh