Patents by Inventor Tung-Heng Hsieh

Tung-Heng Hsieh 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: 20200075476
    Abstract: A semiconductor device includes a substrate having an active region, a first gate structure over a top surface of the substrate, a second gate structure over the top surface of the substrate, a pair of first spacers on each sidewall of the first gate structure, a pair of second spacers on each sidewall of the second gate structure, an insulating layer over at least the first gate structure, a first conductive feature over the active region and a second conductive feature over the substrate. Further, the second gate structure is adjacent to the first gate structure and a top surface of the first conductive feature is coplanar with a top surface of the second conductive feature.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 5, 2020
    Inventors: Tung-Heng Hsieh, Ting-Wei Chiang, Chung-Te Lin, Hui-Zhong Zhuang, Li-Chun Tien, Sheng-Hsiung Wang
  • Publication number: 20200051972
    Abstract: A mandrel is formed over an active region that includes a first region and a second region. The first region and the second region are reserved for the formation of a source and a drain of a FinFET, respectively. A portion of the mandrel formed over the second region is broken up into a first segment and a second segment separated from the first segment by a gap. Spacers are formed on opposite sides of the mandrel. Using the spacers, fins are defined. The fins protrude upwardly out of the active region. A portion of the second region corresponding to the gap has no fins formed thereover. The source is epitaxially grown on the fins in the first region. At least a portion of the drain is epitaxially grown on the portion of the second region having no fins.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Yung Feng Chang
  • Publication number: 20200044038
    Abstract: A semiconductor device includes a fin structure, first and second gate structures, a source/drain region, a source/drain contact layer and a separation layer. The fin structure protrudes from an isolation insulating layer disposed over a substrate and extends in a first direction. The first and second gate structures are formed over the fin structure and extend in a second direction crossing the first direction. The source/drain region is disposed between the first and second gate structures. The interlayer insulating layer is disposed over the fin structure, the first and second gate structures and the source/drain region. The first source/drain contact layer is disposed on the first source/drain region. The separation layer is disposed adjacent to the first source/drain contact layer. Ends of the first and second gate structures and an end of the source drain contact layer are in contact with a same face of the separation layer.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Inventors: Yi-Jyun HUANG, Tung-Heng HSIEH, Bao-Ru YOUNG
  • 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
  • Publication number: 20200006217
    Abstract: A semiconductor device includes a substrate having an active region, a first gate structure over a top surface of the substrate, a second gate structure over the top surface of the substrate, a pair of first spacers on each sidewall of the first gate structure, a pair of second spacers on each sidewall of the second gate structure, an insulating layer over at least the first gate structure, a first conductive feature over the active region and a second conductive feature over the substrate. Further, the second gate structure is adjacent to the first gate structure and a top surface of the first conductive feature is coplanar with a top surface of the second conductive feature.
    Type: Application
    Filed: September 6, 2019
    Publication date: January 2, 2020
    Inventors: Tung-Heng Hsieh, Ting-Wei Chiang, Chung-Te Lin, Hui-Zhong Zhuang, Li-Chun Tien, Sheng-Hsiung Wang
  • Patent number: 10522681
    Abstract: A method and structure for mitigating strain loss (e.g., in a FinFET channel) includes providing a semiconductor device having a substrate having a substrate fin portion, an active fin region formed over a first part of the substrate fin portion, a pickup region formed over a second part of the substrate fin portion, and an anchor formed over a third part of the substrate fin portion. In some embodiments, the substrate fin portion includes a first material, and the active fin region includes a second material different than the first material. In various examples, the anchor is disposed between and adjacent to each of the active fin region and the pickup region.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: December 31, 2019
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Sheng-Hsiung Wang, Yung Feng Chang, Tung-Heng Hsieh
  • Patent number: 10522634
    Abstract: A semiconductor device includes a fin structure, first and second gate structures, a source/drain region, a source/drain contact layer and a separation layer. The fin structure protrudes from an isolation insulating layer disposed over a substrate and extends in a first direction. The first and second gate structures are formed over the fin structure and extend in a second direction crossing the first direction. The source/drain region is disposed between the first and second gate structures. The interlayer insulating layer is disposed over the fin structure, the first and second gate structures and the source/drain region. The first source/drain contact layer is disposed on the first source/drain region. The separation layer is disposed adjacent to the first source/drain contact layer. Ends of the first and second gate structures and an end of the source drain contact layer are in contact with a same face of the separation layer.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 31, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Jyun Huang, Tung-Heng Hsieh, Bao-Ru Young
  • Patent number: 10522527
    Abstract: An integrated circuit includes a plurality of gate electrode structures extending along a first direction and having a predetermined spatial resolution measurable along a second direction orthogonal to the first direction. The plurality of gate electrode structures includes a first gate electrode structure having a first portion and a second portion separated by a first carve-out region, and a conductive feature over the first carve-out region and electrically connecting the first portion and the second portion of the first gate electrode.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 31, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tung-Heng Hsieh, Hui-Zhong Zhuang, Chung-Te Lin, Sheng-Hsiung Wang, Ting-Wei Chiang, Li-Chun Tien
  • 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
  • Patent number: 10515850
    Abstract: The present disclosure provides a method for fabricating an integrated circuit (IC). The method includes receiving an IC layout having active regions, conductive contact features landing on the active regions, and a conductive via feature to be landing on a first subset of the conductive contact features and to be spaced from a second subset of the conductive contact features; evaluating a spatial parameter of the conductive via feature to the conductive contact features; and modifying the IC layout according to the spatial parameter such that the conductive via feature has a S-curved shape.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: December 24, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Sheng-Hsiung Wang, Tung-Heng Hsieh, Bao-Ru Young
  • Patent number: 10504837
    Abstract: A semiconductor device includes a substrate having an active region, a first gate structure over a top surface of the substrate, a second gate structure over the top surface of the substrate, a pair of first spacers on each sidewall of the first gate structure, a pair of second spacers on each sidewall of the second gate structure, an insulating layer over at least the first gate structure, a first conductive feature over the active region and a second conductive feature over the substrate. Further, the second gate structure is adjacent to the first gate structure and a top surface of the first conductive feature is coplanar with a top surface of the second conductive feature.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: December 10, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tung-Heng Hsieh, Hui-Zhong Zhuang, Chung-Te Lin, Ting-Wei Chiang, Sheng-Hsiung Wang, Li-Chun Tien
  • Publication number: 20190341310
    Abstract: Methods and apparatus for polysilicon MOS capacitors in a replacement gate process. A method includes disposing a gate dielectric layer over a semiconductor substrate; disposing a polysilicon gate layer over the dielectric layer; patterning the gate dielectric layer and the polysilicon gate layer to form a plurality of polysilicon gates spaced by at least a minimum polysilicon to polysilicon pitch; defining a polysilicon resistor region containing at least one of the polysilicon gates and not containing at least one other of the polysilicon gates, which form dummy gates; depositing a mask layer over an inter-level dielectric layer; patterning the mask layer to expose the dummy gates; removing the dummy gates and the gate dielectric layer underneath the dummy gates to leave trenches in the inter-level dielectric layer; and forming high-k metal gate devices in the trenches in the inter-level dielectric layer. An apparatus produced by the method is disclosed.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventors: Pai-Chieh Wang, Tung-Heng Hsieh, Yimin Huang, Chung-Hui Chen
  • Patent number: 10453837
    Abstract: A mandrel is formed over an active region that includes a first region and a second region. The first region and the second region are reserved for the formation of a source and a drain of a FinFET, respectively. A portion of the mandrel formed over the second region is broken up into a first segment and a second segment separated from the first segment by a gap. Spacers are formed on opposite sides of the mandrel. Using the spacers, fins are defined. The fins protrude upwardly out of the active region. A portion of the second region corresponding to the gap has no fins formed thereover. The source is epitaxially grown on the fins in the first region. At least a portion of the drain is epitaxially grown on the portion of the second region having no fins.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: October 22, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Yung Feng Chang
  • 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
  • Publication number: 20190252370
    Abstract: A mandrel is formed over an active region that includes a first region and a second region. The first region and the second region are reserved for the formation of a source and a drain of a FinFET, respectively. A portion of the mandrel formed over the second region is broken up into a first segment and a second segment separated from the first segment by a gap. Spacers are formed on opposite sides of the mandrel. Using the spacers, fins are defined. The fins protrude upwardly out of the active region. A portion of the second region corresponding to the gap has no fins formed thereover. The source is epitaxially grown on the fins in the first region. At least a portion of the drain is epitaxially grown on the portion of the second region having no fins.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Tzung-Chi Lee, Tung-Heng Hsieh, Bao-Ru Young, Yung Feng Chang
  • Publication number: 20190244950
    Abstract: A conductive line structure includes two conductive lines in a layout. The two cut lines are over at least a part of the two conductive lines in the layout. The cut lines designate cut sections of the two conductive lines and the cut lines are spaced from each other within a fabrication process limit. The two cut lines are connected in the layout. The two conductive lines are patterned over a substrate in a physical integrated circuit using the two connected parallel cut lines. The two conductive lines are electrically conductive.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 8, 2019
    Inventors: Ru-Gun Liu, Tung-Heng Hsieh, Tsung-Chieh Tsai, Juing-Yi Wu, Liang-Yao Lee, Jyh-Kang Ting
  • Patent number: 10354920
    Abstract: Methods and apparatus for polysilicon MOS capacitors in a replacement gate process. A method includes disposing a gate dielectric layer over a semiconductor substrate; disposing a polysilicon gate layer over the dielectric layer; patterning the gate dielectric layer and the polysilicon gate layer to form a plurality of polysilicon gates spaced by at least a minimum polysilicon to polysilicon pitch; defining a polysilicon resistor region containing at least one of the polysilicon gates and not containing at least one other of the polysilicon gates, which form dummy gates; depositing a mask layer over an inter-level dielectric layer; patterning the mask layer to expose the dummy gates; removing the dummy gates and the gate dielectric layer underneath the dummy gates to leave trenches in the inter-level dielectric layer; and forming high-k metal gate devices in the trenches in the inter-level dielectric layer. An apparatus produced by the method is disclosed.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: July 16, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Pai-Chieh Wang, Tung-Heng Hsieh, Yimin Huang, Chung-Hui Chen
  • 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: 10340348
    Abstract: A semiconductor device includes a fin structure, first and second gate structures, a source/drain region, a source/drain contact layer and a separation layer. The fin structure protrudes from an isolation insulating layer disposed over a substrate and extends in a first direction. The first and second gate structures are formed over the fin structure and extend in a second direction crossing the first direction. The source/drain region is disposed between the first and second gate structures. The interlayer insulating layer is disposed over the fin structure, the first and second gate structures and the source/drain region. The first source/drain contact layer is disposed on the first source/drain region. The separation layer is disposed adjacent to the first source/drain contact layer. Ends of the first and second gate structures and an end of the source drain contact layer are in contact with a same face of the separation layer.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 2, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Jyun Huang, Tung-Heng Hsieh, Bao-Ru Young
  • Patent number: 10283495
    Abstract: A semiconductor device includes two elongated active regions that include source/drain regions for multiple transistor devices, a first contact layer that includes an electrical connection between the two active regions, a second contact layer that includes a connection between two gate lines, and a gate contact layer that provides connections to the gate lines.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 7, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ru-Gun Liu, Chun-Yi Lee, Jyh-Kang Ting, Juing-Yi Wu, Liang-Yao Lee, Tung-Heng Hsieh, Tsung-Chieh Tsai