Patents by Inventor Yanbiao Pan

Yanbiao Pan 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: 20250221015
    Abstract: Described examples include an integrated circuit including a dielectric layer located over a top surface of a semiconductor substrate and extending over a gate electrode. A trench extends from a top surface of the dielectric layer into the substrate. A conductive trench electrode is within the trench, and a dielectric liner is between the trench electrode and the semiconductor substrate. A cap dielectric layer is located on the conductive trench electrode and on the dielectric layer, and extends over the gate electrode.
    Type: Application
    Filed: December 27, 2023
    Publication date: July 3, 2025
    Inventors: Yanbiao Pan, Jackson Bauer, Pushpa Mahalingam, Karl Disher, Abbas Ali, Ravi Natarajan
  • Patent number: 12317583
    Abstract: A semiconductor device includes a resistor having a resistor body including polysilicon, with fluorine in the polysilicon. The resistor body has a laterally alternating distribution of silicon grain sizes. The semiconductor device further includes an MOS transistor having a gate including polysilicon with fluorine. The fluorine in the gate has a higher average concentration than the fluorine in the resistor body. The semiconductor device may be formed by forming a gate/resistor layer including polysilicon. A fluorine implant mask is formed over the gate/resistor layer, exposing the gate/resistor layer in an area for the gate and over implant segments in an area for the resistor body. The implant segments do not cover the entire area for the resistor body. Fluorine is implanted into the gate/resistor layer where exposed by the fluorine implant mask. The gate/resistor layer is patterned to form the gate and the resistor body.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: May 27, 2025
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mahalingam Nandakumar, Yanbiao Pan
  • Publication number: 20250006836
    Abstract: Semiconductor devices including a nitrogen doped field relief dielectric layer are described. The microelectronic device comprises a substrate including a body region having a first conductivity type and a drain drift region having a second conductivity type opposite the first conductivity type; a gate dielectric layer on the substrate, the gate dielectric layer extending over the body region and the drift region and a doped field relief dielectric layer on the drift region. Doping of the field relief dielectric layer with nitrogen raises the dielectric constant of the field relief dielectric above that of pure silicon dioxide. Increasing the dielectric constant of the field relief dielectric layer may improve channel hot carrier performance, improve breakdown voltage, and reduce the specific on resistance of the microelectronic device compared to a microelectronic device of similar size with a field relief dielectric which is not doped with nitrogen.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 2, 2025
    Inventors: Jackson Bauer, Yanbiao Pan, Bhaskar Srinivasan, Pushpa Mahalingam
  • Publication number: 20240312984
    Abstract: Apparatus, and their methods of manufacture, that include an insulating feature above a substrate and a resistor formed on the insulating feature. Forming the resistor includes depositing polysilicon and doping the polysilicon (e.g., in-situ) with a carbon dopant and/or an oxygen dopant.
    Type: Application
    Filed: May 29, 2024
    Publication date: September 19, 2024
    Inventors: Yanbiao Pan, Robert Martin Higgins, Bhaskar Srinivasan, Pushpa Mahalingam
  • Patent number: 12027515
    Abstract: Apparatus, and their methods of manufacture, that include an insulating feature above a substrate and a resistor formed on the insulating feature. Forming the resistor includes depositing polysilicon and doping the polysilicon (e.g., in-situ) with a carbon dopant and/or an oxygen dopant.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: July 2, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Yanbiao Pan, Robert Martin Higgins, Bhaskar Srinivasan, Pushpa Mahalingam
  • Publication number: 20240112947
    Abstract: The present disclosure generally relates to shallow trench isolation (STI) processing with local oxidation of silicon (LOCOS), and an integrated circuit formed thereby. In an example, an integrated circuit includes a semiconductor layer, a LOCOS layer, an STI structure, and a passive circuit component. The semiconductor layer is over a substrate. The LOCOS layer is over the semiconductor layer. The STI structure extends into the semiconductor layer. The passive circuit component is over and touches the LOCOS layer.
    Type: Application
    Filed: October 31, 2022
    Publication date: April 4, 2024
    Inventors: Scott Kelly Montgomery, James Todd, Yanbiao Pan, Jeffery Nilles
  • Patent number: 11817454
    Abstract: Described examples include a resistor having a substrate having a non-conductive surface and a patterned polysilicon layer on the non-conductive surface, the patterned polysilicon layer including polycrystalline silicon wherein at least 90% of the grains in the polycrystalline silicon are 30 nm or smaller. The resistor also has a first terminal in conductive contact with the patterned polysilicon layer and a second terminal in conductive contact with the polysilicon layer and spaced from the first contact.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: November 14, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Yanbiao Pan, Robert Martin Higgins, Bhaskar Srinivasan, Pushpa Mahalingam
  • Publication number: 20230290775
    Abstract: A semiconductor device includes a resistor having a resistor body including polysilicon, with fluorine in the polysilicon. The resistor body has a laterally alternating distribution of silicon grain sizes. The semiconductor device further includes an MOS transistor having a gate including polysilicon with fluorine. The fluorine in the gate has a higher average concentration than the fluorine in the resistor body. The semiconductor device may be formed by forming a gate/resistor layer including polysilicon. A fluorine implant mask is formed over the gate/resistor layer, exposing the gate/resistor layer in an area for the gate and over implant segments in an area for the resistor body. The implant segments do not cover the entire area for the resistor body. Fluorine is implanted into the gate/resistor layer where exposed by the fluorine implant mask. The gate/resistor layer is patterned to form the gate and the resistor body.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 14, 2023
    Inventors: Mahalingam Nandakumar, Yanbiao Pan
  • Patent number: 11742436
    Abstract: A semiconductor device includes an integrated trench capacitor in a substrate, with a field oxide layer on the substrate. The trench capacitor includes trenches extending into semiconductor material of the substrate, and a capacitor dielectric in the trenches on the semiconductor material. The trench capacitor further includes an electrically conductive trench-fill material on the capacitor dielectric. A portion of the capacitor dielectric extends into the field oxide layer, between a first segment of the field oxide layer over the trench-fill material and a second segment of the field oxide layer over the semiconductor material. The integrated trench capacitor has a trench contact to the trench-fill material in each of the trenches, and substrate contacts to the semiconductor material around the trenches, with no substrate contacts between the trenches.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: August 29, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Binghua Hu, Yanbiao Pan, Django Trombley
  • Patent number: 11676961
    Abstract: A semiconductor device includes a resistor having a resistor body including polysilicon, with fluorine in the polysilicon. The resistor body has a laterally alternating distribution of silicon grain sizes. The semiconductor device further includes an MOS transistor having a gate including polysilicon with fluorine. The fluorine in the gate has a higher average concentration than the fluorine in the resistor body. The semiconductor device may be formed by forming a gate/resistor layer including polysilicon. A fluorine implant mask is formed over the gate/resistor layer, exposing the gate/resistor layer in an area for the gate and over implant segments in an area for the resistor body. The implant segments do not cover the entire area for the resistor body. Fluorine is implanted into the gate/resistor layer where exposed by the fluorine implant mask. The gate/resistor layer is patterned to form the gate and the resistor body.
    Type: Grant
    Filed: November 1, 2020
    Date of Patent: June 13, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Mahalingam Nandakumar, Yanbiao Pan
  • Publication number: 20230112644
    Abstract: Apparatus, and their methods of manufacture, that include an insulating feature above a substrate and a resistor formed on the insulating feature. Forming the resistor includes depositing polysilicon and doping the polysilicon (e.g., in-situ) with a carbon dopant and/or an oxygen dopant.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 13, 2023
    Inventors: Yanbiao Pan, Robert Martin Higgins, Bhaskar Srinivasan, Pushpa Mahalingam
  • Publication number: 20220399434
    Abstract: An integrated circuit includes a dielectric isolation structure formed at a surface of a semiconductor substrate and a polysilicon resistor body formed on the dielectric isolation structure. The polysilicon resistor body includes an N-type dopant having an N-type dopant concentration, nitrogen having a nitrogen concentration, and carbon having a carbon concentration. The sheet resistance of the resistor body is greater than 5 k?/square.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 15, 2022
    Inventors: Yanbiao Pan, Pushpa Mahalingam
  • Publication number: 20220238516
    Abstract: Described examples include a resistor having a substrate having a non-conductive surface and a patterned polysilicon layer on the non-conductive surface, the patterned polysilicon layer including polycrystalline silicon wherein at least 90% of the grains in the polycrystalline silicon are 30 nm or smaller. The resistor also has a first terminal in conductive contact with the patterned polysilicon layer and a second terminal in conductive contact with the polysilicon layer and spaced from the first contact.
    Type: Application
    Filed: August 31, 2021
    Publication date: July 28, 2022
    Inventors: Yanbiao Pan, Robert Martin Higgins, Pushpa Mahalingam, Bhaskar Srinivasan
  • Publication number: 20220139907
    Abstract: A semiconductor device includes a resistor having a resistor body including polysilicon, with fluorine in the polysilicon. The resistor body has a laterally alternating distribution of silicon grain sizes. The semiconductor device further includes an MOS transistor having a gate including polysilicon with fluorine. The fluorine in the gate has a higher average concentration than the fluorine in the resistor body. The semiconductor device may be formed by forming a gate/resistor layer including polysilicon. A fluorine implant mask is formed over the gate/resistor layer, exposing the gate/resistor layer in an area for the gate and over implant segments in an area for the resistor body. The implant segments do not cover the entire area for the resistor body. Fluorine is implanted into the gate/resistor layer where exposed by the fluorine implant mask. The gate/resistor layer is patterned to form the gate and the resistor body.
    Type: Application
    Filed: November 1, 2020
    Publication date: May 5, 2022
    Applicant: Texas Instruments Incorporated
    Inventors: Mahalingam Nandakumar, Yanbiao Pan
  • Publication number: 20220077324
    Abstract: A semiconductor device includes an integrated trench capacitor in a substrate, with a field oxide layer on the substrate. The trench capacitor includes trenches extending into semiconductor material of the substrate, and a capacitor dielectric in the trenches on the semiconductor material. The trench capacitor further includes an electrically conductive trench-fill material on the capacitor dielectric. A portion of the capacitor dielectric extends into the field oxide layer, between a first segment of the field oxide layer over the trench-fill material and a second segment of the field oxide layer over the semiconductor material. The integrated trench capacitor has a trench contact to the trench-fill material in each of the trenches, and substrate contacts to the semiconductor material around the trenches, with no substrate contacts between the trenches.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventors: Binghua Hu, Yanbiao Pan, Django Trombley
  • Patent number: 11222986
    Abstract: A semiconductor device includes an integrated trench capacitor in a substrate, with a field oxide layer on the substrate. The trench capacitor includes trenches extending into semiconductor material of the substrate, and a capacitor dielectric in the trenches on the semiconductor material. The trench capacitor further includes an electrically conductive trench-fill material on the capacitor dielectric. A portion of the capacitor dielectric extends into the field oxide layer, between a first segment of the field oxide layer over the trench-fill material and a second segment of the field oxide layer over the semiconductor material. The integrated trench capacitor has a trench contact to the trench-fill material in each of the trenches, and substrate contacts to the semiconductor material around the trenches, with no substrate contacts between the trenches.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: January 11, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Binghua Hu, Yanbiao Pan, Django Trombley
  • Patent number: 11195958
    Abstract: A semiconductor device with an isolation structure and a trench capacitor, each formed using a single resist mask for etching corresponding first and second trenches of different widths and different depths, with dielectric liners formed on the trench sidewalls and polysilicon filling the trenches and deep doped regions surrounding the trenches, including conductive features of a metallization structure that connect the polysilicon of the isolation structure trench to the deep doped region to form an isolation structure.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 7, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Binghua Hu, Alexei Sadovnikov, Abbas Ali, Yanbiao Pan, Stefan Herzer
  • Publication number: 20210028316
    Abstract: A semiconductor device includes an integrated trench capacitor in a substrate, with a field oxide layer on the substrate. The trench capacitor includes trenches extending into semiconductor material of the substrate, and a capacitor dielectric in the trenches on the semiconductor material. The trench capacitor further includes an electrically conductive trench-fill material on the capacitor dielectric. A portion of the capacitor dielectric extends into the field oxide layer, between a first segment of the field oxide layer over the trench-fill material and a second segment of the field oxide layer over the semiconductor material. The integrated trench capacitor has a trench contact to the trench-fill material in each of the trenches, and substrate contacts to the semiconductor material around the trenches, with no substrate contacts between the trenches.
    Type: Application
    Filed: July 27, 2020
    Publication date: January 28, 2021
    Applicant: Texas Instruments Incorporated
    Inventors: Binghua Hu, Yanbiao Pan, Django Trombley
  • Publication number: 20210005760
    Abstract: A semiconductor device with an isolation structure and a trench capacitor, each formed using a single resist mask for etching corresponding first and second trenches of different widths and different depths, with dielectric liners formed on the trench sidewalls and polysilicon filling the trenches and deep doped regions surrounding the trenches, including conductive features of a metallization structure that connect the polysilicon of the isolation structure trench to the deep doped region to form an isolation structure.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Inventors: Binghua Hu, Alexei Sadovnikov, Abbas Ali, Yanbiao Pan, Stefan Herzer
  • Patent number: 10811543
    Abstract: A semiconductor device with an isolation structure and a trench capacitor, each formed using a single resist mask for etching corresponding first and second trenches of different widths and different depths, with dielectric liners formed on the trench sidewalls and polysilicon filling the trenches and deep doped regions surrounding the trenches, including conductive features of a metallization structure that connect the polysilicon of the isolation structure trench to the deep doped region to form an isolation structure.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: October 20, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Binghua Hu, Alexei Sadovnikov, Abbas Ali, Yanbiao Pan, Stefan Herzer