Patents by Inventor Cheng-Bo Shu

Cheng-Bo Shu 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: 20250056835
    Abstract: An integrated circuit structure includes a semiconductor substrate, first and second source/drain features, a gate dielectric layer, a gate electrode, a field plate electrode, first and second metal silicide layers, a dielectric layer, and a spacer. The gate electrode and the field plate electrode are over the gate dielectric layer and respectively vertically overlapping a well region and a drift region in the semiconductor substrate. A first sidewall of the field plate electrode faces the gate electrode. The first and second metal silicide layers are over the gate electrode and the field plate electrode, respectively. The dielectric layer has a first portion between the gate electrode and the first sidewall of the field plate electrode and a second portion below a bottom surface of the field plate electrode. The spacer is alongside a second sidewall of the field plate electrode and over the second portion of the dielectric layer.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Bo SHU, Yun-Chi WU
  • Patent number: 12166121
    Abstract: An integrated circuit structure includes a semiconductor substrate, a first source/drain feature, a second source/drain feature, a gate dielectric layer, a gate electrode, a field plate electrode, and a dielectric layer. The semiconductor substrate has a well region and a drift region therein. The first source/drain feature is in the well region. The second source/drain feature is in the semiconductor substrate. The drift region is between the well region and the second source/drain feature. The gate dielectric layer is over the well region and the drift region. The gate electrode is over the gate dielectric layer and vertically overlapping the well region. The field plate electrode is over the gate dielectric layer and vertically overlapping the drift region. The dielectric layer is between the gate electrode and the field plate electrode. A top surface of the gate electrode is free of the dielectric layer.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: December 10, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Bo Shu, Yun-Chi Wu
  • Patent number: 12144173
    Abstract: Various embodiments of the present application are directed towards a method to integrate NVM devices with a logic or BCD device. In some embodiments, an isolation structure is formed in a semiconductor substrate. The isolation structure demarcates a memory region of the semiconductor substrate, and further demarcates a peripheral region of the semiconductor substrate. The peripheral region may, for example, correspond to BCD device or a logic device. A doped well is formed in the peripheral region. A dielectric seal layer is formed covering the memory and peripheral regions, and further covering the doped well. The dielectric seal layer is removed from the memory region, but not the peripheral region. A memory cell structure is formed on the memory region using a thermal oxidation process. The dielectric seal layer is removed from the peripheral region, and a peripheral device structure including a gate electrode is formed on the peripheral region.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: November 12, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Bo Shu, Chung-Jen Huang, Yun-Chi Wu
  • Publication number: 20240372011
    Abstract: A semiconductor device includes a non-volatile memory (NVM) cell. The NVM cell includes a semiconductor wire disposed over an insulating layer disposed on a substrate. The NVM cell includes a select transistor and a control transistor. The select transistor includes a gate dielectric layer disposed around the semiconductor wire and a select gate electrode disposed on the gate dielectric layer. The control transistor includes a stacked dielectric layer disposed around the semiconductor wire and a control gate electrode disposed on the stacked dielectric layer. The stacked dielectric layer includes a charge trapping layer. The select gate electrode is disposed adjacent to the control gate electrode with the stacked dielectric layer interposed therebetween.
    Type: Application
    Filed: July 12, 2024
    Publication date: November 7, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Bo SHU, Yun-Chi WU, Chung-Jen HUANG
  • Publication number: 20240347626
    Abstract: An LDMOS transistor device includes a stepped isolation structure over a substrate, a gate electrode disposed over a portion of the stepped isolation structure, a source region disposed in the substrate, and a drain region disposed in the substrate. The stepped isolation structure includes a first portion having a first thickness, and a second portion having a second thickness greater than the first thickness. The second portion includes dopants. The drain region is adjacent to the stepped isolation structure.
    Type: Application
    Filed: April 12, 2023
    Publication date: October 17, 2024
    Inventors: TSUNG-HUA YANG, CHENG-BO SHU, CHIA-TA HSIEH, PING-CHENG LI, PO-WEI LIU, SHIH-JUNG TU, TSUNG-YU YANG, YUN-CHI WU, YU-WEN TSENG
  • Patent number: 12114503
    Abstract: Some embodiments relate to an integrated chip that includes a first source/drain region and a second source/drain region disposed in a substrate. A plane that is substantially perpendicular to an upper surface of the substrate traverses the first source/drain region and the second source/drain region. Agate electrode extends over a channel region in the substrate between the first source/drain region and the second source/drain region. The gate electrode is separated from the channel region by way of a charge trapping dielectric structure. The charge trapping dielectric structure includes a tunnel dielectric layer, a charge trapping dielectric layer over the tunnel dielectric layer, and a blocking dielectric layer over the charge trapping dielectric layer. The channel region has a channel width measured perpendicularly to the plane, and the tunnel dielectric layer has different thicknesses at different respective points along the channel width.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: October 8, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui-Yu Pan, Cheng-Bo Shu, Chung-Jen Huang, Jing-Ru Lin, Tsung-Yu Yang, Yun-Chi Wu, Yueh-Chieh Chu
  • Patent number: 12094984
    Abstract: A semiconductor device includes a non-volatile memory (NVM) cell. The NVM cell includes a semiconductor wire disposed over an insulating layer disposed on a substrate. The NVM cell includes a select transistor and a control transistor. The select transistor includes a gate dielectric layer disposed around the semiconductor wire and a select gate electrode disposed on the gate dielectric layer. The control transistor includes a stacked dielectric layer disposed around the semiconductor wire and a control gate electrode disposed on the stacked dielectric layer. The stacked dielectric layer includes a charge trapping layer. The select gate electrode is disposed adjacent to the control gate electrode with the stacked dielectric layer interposed therebetween.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: September 17, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD
    Inventors: Cheng-Bo Shu, Yun-Chi Wu, Chung-Jen Huang
  • Publication number: 20240258374
    Abstract: A method of forming a semiconductor arrangement includes forming a gate dielectric layer over a semiconductor layer. A gate electrode layer is formed over the gate dielectric layer. A first gate mask is formed over the gate electrode layer. The gate electrode layer is etched using the first gate mask as an etch template to form a first gate electrode. A first dopant is implanted into the semiconductor layer using the first gate mask and the first gate electrode as an implantation template to form a first doped region in the semiconductor layer.
    Type: Application
    Filed: February 5, 2024
    Publication date: August 1, 2024
    Inventors: Yun-Chi WU, Tsung-Yu YANG, Cheng-Bo SHU, Chien Hung LIU
  • Patent number: 11990545
    Abstract: A method for making a semiconductor device includes forming a ROX layer on a substrate and a patterned silicon oxynitride layer on the patterned ROX layer; conformally forming a dielectric oxide layer to cover the substrate, the patterned silicon oxynitride layer, and the patterned ROX layer; and fully oxidizing the patterned silicon oxynitride layer to form a fully oxidized gate oxide layer on the substrate.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: May 21, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tsu-Hsiu Perng, Yun-Chi Wu, Chia-Chen Chang, Cheng-Bo Shu, Jyun-Guan Jhou, Pei-Lun Wang
  • Patent number: 11894425
    Abstract: A method of forming a semiconductor arrangement includes forming a gate dielectric layer over a semiconductor layer. A gate electrode layer is formed over the gate dielectric layer. A first gate mask is formed over the gate electrode layer. The gate electrode layer is etched using the first gate mask as an etch template to form a first gate electrode. A first dopant is implanted into the semiconductor layer using the first gate mask and the first gate electrode as an implantation template to form a first doped region in the semiconductor layer.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: February 6, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Yun-Chi Wu, Tsung-Yu Yang, Cheng-Bo Shu, Chien Hung Liu
  • Publication number: 20230387107
    Abstract: A method includes: etching a trench on a surface of a substrate; filling the trench with a dielectric material to form a first isolation region; depositing a patterned mask layer on the substrate, the patterned mask layer comprising an opening exposing the substrate; implanting oxygen into the substrate through the opening to form an implant region; generating a second isolation region from the implant region; and forming a transistor on the substrate. The transistor includes a channel laterally surrounding the second isolation region.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 30, 2023
    Inventors: YUAN-CHENG YANG, YUN-CHI WU, TSU-HSIU PERNG, SHIH-JUNG TU, CHENG-BO SHU, CHIA-CHEN CHANG
  • Publication number: 20230320089
    Abstract: Various embodiments of the present application are directed towards a method to integrate NVM devices with a logic or BCD device. In some embodiments, an isolation structure is formed in a semiconductor substrate. The isolation structure demarcates a memory region of the semiconductor substrate, and further demarcates a peripheral region of the semiconductor substrate. The peripheral region may, for example, correspond to BCD device or a logic device. A doped well is formed in the peripheral region. A dielectric seal layer is formed covering the memory and peripheral regions, and further covering the doped well. The dielectric seal layer is removed from the memory region, but not the peripheral region. A memory cell structure is formed on the memory region using a thermal oxidation process. The dielectric seal layer is removed from the peripheral region, and a peripheral device structure including a gate electrode is formed on the peripheral region.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 5, 2023
    Inventors: Cheng-Bo Shu, Chung-Jen Huang, Yun-Chi Wu
  • Publication number: 20230282742
    Abstract: An integrated circuit structure includes a semiconductor substrate, a first source/drain feature, a second source/drain feature, a gate dielectric layer, a gate electrode, a field plate electrode, and a dielectric layer. The semiconductor substrate has a well region and a drift region therein. The first source/drain feature is in the well region. The second source/drain feature is in the semiconductor substrate. The drift region is between the well region and the second source/drain feature. The gate dielectric layer is over the well region and the drift region. The gate electrode is over the gate dielectric layer and vertically overlapping the well region. The field plate electrode is over the gate dielectric layer and vertically overlapping the drift region. The dielectric layer is between the gate electrode and the field plate electrode. A top surface of the gate electrode is free of the dielectric layer.
    Type: Application
    Filed: May 4, 2023
    Publication date: September 7, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Bo SHU, Yun-Chi WU
  • Patent number: 11711917
    Abstract: Various embodiments of the present application are directed towards a method to integrate NVM devices with a logic or BCD device. In some embodiments, an isolation structure is formed in a semiconductor substrate. The isolation structure demarcates a memory region of the semiconductor substrate, and further demarcates a peripheral region of the semiconductor substrate. The peripheral region may, for example, correspond to BCD device or a logic device. A doped well is formed in the peripheral region. A dielectric seal layer is formed covering the memory and peripheral regions, and further covering the doped well. The dielectric seal layer is removed from the memory region, but not the peripheral region. A memory cell structure is formed on the memory region using a thermal oxidation process. The dielectric seal layer is removed from the peripheral region, and a peripheral device structure including a gate electrode is formed on the peripheral region.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: July 25, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Bo Shu, Chung-Jen Huang, Yun-Chi Wu
  • Patent number: 11688805
    Abstract: A method for forming an integrated circuit structure is provided. The method includes forming a gate dielectric layer over a semiconductor substrate; depositing a first gate electrode layer over the gate dielectric layer; etching the first gate electrode layer to form a gate electrode over the gate dielectric layer; forming a drift region in the semiconductor substrate; depositing a dielectric layer over the gate dielectric layer and the gate electrode, in which the dielectric layer has a first portion alongside a first sidewall of the gate electrode; depositing a second gate electrode layer over the dielectric layer; etching the second gate electrode layer to form a field plate electrode alongside the first portion of the dielectric layer; and forming source/drain features in the semiconductor substrate.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: June 27, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Bo Shu, Yun-Chi Wu
  • Publication number: 20230187499
    Abstract: A method of forming a semiconductor arrangement includes forming a gate dielectric layer over a semiconductor layer. A gate electrode layer is formed over the gate dielectric layer. A first gate mask is formed over the gate electrode layer. The gate electrode layer is etched using the first gate mask as an etch template to form a first gate electrode. A first dopant is implanted into the semiconductor layer using the first gate mask and the first gate electrode as an implantation template to form a first doped region in the semiconductor layer.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Yun-Chi WU, Tsung-Yu YANG, Cheng-Bo SHU, Chien Hung LIU
  • Publication number: 20230109273
    Abstract: Some embodiments relate to an integrated chip that includes a first source/drain region and a second source/drain region disposed in a substrate. A plane that is substantially perpendicular to an upper surface of the substrate traverses the first source/drain region and the second source/drain region. Agate electrode extends over a channel region in the substrate between the first source/drain region and the second source/drain region. The gate electrode is separated from the channel region by way of a charge trapping dielectric structure. The charge trapping dielectric structure includes a tunnel dielectric layer, a charge trapping dielectric layer over the tunnel dielectric layer, and a blocking dielectric layer over the charge trapping dielectric layer. The channel region has a channel width measured perpendicularly to the plane, and the tunnel dielectric layer has different thicknesses at different respective points along the channel width.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 6, 2023
    Inventors: Jui-Yu Pan, Cheng-Bo Shu, Chung-Jen Huang, Jing-Ru Lin, Tsung-Yu Yang, Yun-Chi Wu, Yueh-Chieh Chu
  • Publication number: 20230040514
    Abstract: A method for making a semiconductor device includes forming a ROX layer on a substrate and a patterned silicon oxynitride layer on the patterned ROX layer; conformally forming a dielectric oxide layer to cover the substrate, the patterned silicon oxynitride layer, and the patterned ROX layer; and fully oxidizing the patterned silicon oxynitride layer to form a fully oxidized gate oxide layer on the substrate.
    Type: Application
    Filed: October 19, 2022
    Publication date: February 9, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tsu-Hsiu PERNG, Yun-Chi WU, Chia-Chen CHANG, Cheng-Bo SHU, Jyun-Guan JHOU, Pei-Lun WANG
  • Patent number: 11575008
    Abstract: A method of forming a semiconductor arrangement includes forming a gate dielectric layer over a semiconductor layer. A gate electrode layer is formed over the gate dielectric layer. A first gate mask is formed over the gate electrode layer. The gate electrode layer is etched using the first gate mask as an etch template to form a first gate electrode. A first dopant is implanted into the semiconductor layer using the first gate mask and the first gate electrode as an implantation template to form a first doped region in the semiconductor layer.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: February 7, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Yun-Chi Wu, Tsung-Yu Yang, Cheng-Bo Shu, Chien Hung Liu
  • Patent number: 11532637
    Abstract: Some embodiments relate to an integrated chip that includes a first source/drain region and a second source/drain region disposed in a substrate. A plane that is substantially perpendicular to an upper surface of the substrate traverses the first source/drain region and the second source/drain region. Agate electrode extends over a channel region in the substrate between the first source/drain region and the second source/drain region. The gate electrode is separated from the channel region by way of a charge trapping dielectric structure. The charge trapping dielectric structure includes a tunnel dielectric layer, a charge trapping dielectric layer over the tunnel dielectric layer, and a blocking dielectric layer over the charge trapping dielectric layer. The channel region has a channel width measured perpendicularly to the plane, and the tunnel dielectric layer has different thicknesses at different respective points along the channel width.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 20, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui-Yu Pan, Cheng-Bo Shu, Chung-Jen Huang, Jing-Ru Lin, Tsung-Yu Yang, Yun-Chi Wu, Yueh-Chieh Chu