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: 20230377982Abstract: 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: ApplicationFiled: July 28, 2023Publication date: November 23, 2023Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
-
Publication number: 20230378175Abstract: 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: ApplicationFiled: July 25, 2023Publication date: November 23, 2023Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Patent number: 11798942Abstract: 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: GrantFiled: April 26, 2021Date of Patent: October 24, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Patent number: 11742244Abstract: 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: GrantFiled: November 9, 2020Date of Patent: August 29, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
-
Publication number: 20210249409Abstract: 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: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Patent number: 11043572Abstract: 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: GrantFiled: January 13, 2020Date of Patent: June 22, 2021Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Chia-Sheng Fan
-
Patent number: 10991691Abstract: 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: GrantFiled: December 20, 2019Date of Patent: April 27, 2021Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Publication number: 20210082769Abstract: 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: ApplicationFiled: November 9, 2020Publication date: March 18, 2021Inventors: Chia-Sheng FAN, Chun-Yen LIN, Tung-Heng HSIEH, Bao-Ru YOUNG
-
Patent number: 10832958Abstract: 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: GrantFiled: April 29, 2019Date of Patent: November 10, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
-
Publication number: 20200152757Abstract: 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: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Inventors: Tzung-Chi LEE, Tung-Heng HSIEH, Bao-Ru YOUNG, Chia-Sheng FAN
-
Publication number: 20200135726Abstract: 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: ApplicationFiled: December 20, 2019Publication date: April 30, 2020Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Patent number: 10535746Abstract: 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: GrantFiled: July 24, 2018Date of Patent: January 14, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Chia-Sheng Fan
-
Patent number: 10515957Abstract: 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: GrantFiled: July 31, 2018Date of Patent: December 24, 2019Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Publication number: 20190259664Abstract: 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: ApplicationFiled: April 29, 2019Publication date: August 22, 2019Inventors: Chia-Sheng FAN, Chun-Yen LIN, Tung-Heng HSIEH, Bao-Ru YOUNG
-
Patent number: 10354997Abstract: 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: GrantFiled: April 28, 2017Date of Patent: July 16, 2019Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Patent number: 10276445Abstract: 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: GrantFiled: August 31, 2017Date of Patent: April 30, 2019Assignee: Taiwan Semiconductor Manfacturing Co., Ltd.Inventors: Chia-Sheng Fan, Chun-Yen Lin, Tung-Heng Hsieh, Bao-Ru Young
-
Publication number: 20190067116Abstract: 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: ApplicationFiled: August 31, 2017Publication date: February 28, 2019Inventors: Chia-Sheng FAN, Chun-Yen LIN, Tung-Heng HSIEH, Bao-Ru YOUNG
-
Publication number: 20180337178Abstract: 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: ApplicationFiled: July 31, 2018Publication date: November 22, 2018Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh
-
Publication number: 20180331199Abstract: 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: ApplicationFiled: July 24, 2018Publication date: November 15, 2018Inventors: Tzung-Chi LEE, Tung-Heng HSIEH, Bao-Ru YOUNG, Chia-Sheng FAN
-
Publication number: 20180315752Abstract: 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: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Inventors: Chia-Sheng Fan, Bao-Ru Young, Tung-Heng Hsieh