Patents by Inventor David Charles PRITCHARD

David Charles PRITCHARD 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: 20250254985
    Abstract: A structure including a first fin-type field effect transistor (finFET) in a first semiconductor fin. The first finFET includes a channel region between a first source/drain (S/D) region and a second S/D region; and a gate all around (GAA) structure. The GAA structure includes an outer gate region over the channel region and a buried gate region under of the channel region and extending between the first S/D region and the second S/D region. The outer gate region and the buried gate region each include a gate metal layer and a gate dielectric layer. The gate dielectric layer is thicker in the buried gate region than in the outer gate region.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 7, 2025
    Inventors: Hong Yu, David Charles Pritchard, Navneet K. Jain, Wei Ma, Romain H.A. Feuillette
  • Publication number: 20250203937
    Abstract: A structure and method include a transistor with semiconductor nanosheets, which extend between source/drain regions and which include at least a lowermost semiconductor nanosheet and an uppermost semiconductor nanosheet above the lowermost semiconductor nanosheet. The transistor includes inner gate sections below the center portions of each semiconductor nanosheet and an outer gate section with a horizontal portion above the center portion of the uppermost semiconductor nanosheet and with vertical portions on opposing sides of the semiconductor nanosheets and inner gate sections. Inner spacers are below the end portions of each semiconductor nanosheet. Outer spacers are adjacent the sidewalls of the outer gate section (including above end portions of the uppermost semiconductor nanosheet), are wider than the inner spacers, and extend onto proximal portions of the source/drain regions. Additional outer spacers are adjacent to the outer spacers (e.g.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 19, 2025
    Inventors: Maria Toledano Luque, David Charles Pritchard
  • Publication number: 20250079343
    Abstract: Embodiments of the disclosure provide a structure and related method for a gate over semiconductor regions that are not aligned. Structures according to the disclosure include a first semiconductor region extending from a first widthwise end to a second widthwise end within a substrate. A second semiconductor region is adjacent the first semiconductor region and extends from a first widthwise end to a second widthwise end within the substrate. The second widthwise end of the second semiconductor region is non-aligned with the second widthwise end of the first semiconductor region. A gate structure is over the substrate and extends widthwise over the first semiconductor region and the second semiconductor region.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 6, 2025
    Inventors: David Charles Pritchard, Ramesh Raghavan, Thirunavukkarasu Ranganathan, Rajesh Reddy Tummuru, Benoit Francois Claude Ramadout, Luca Pirro
  • Publication number: 20250031439
    Abstract: A disclosed structure includes a semiconductor fin on a substrate and an isolation region on the substrate laterally surrounding a lower portion of the fin. A fin-type field effect transistor (FINFET) includes an upper portion of the fin and an isolation structure, and a gate structure are on the isolation region and positioned laterally adjacent to the upper portion of the fin. The gate structure also extends over the top of the fin and abuts the isolation structure. The FINFET also includes an independently biasable supplementary gate structure integrated into the isolation structure. Specifically, an opening extends into the isolation structure adjacent to, but separated from, the fin. The supplementary gate structure includes a conductor layer within the opening and that portion of the isolation structure between the conductor layer and the semiconductor fin. Also disclosed are associated methods.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 23, 2025
    Inventors: Hong Yu, Navneet K. Jain, David Charles Pritchard, Romain H.A. Feuillette
  • Publication number: 20240347638
    Abstract: Disclosed are a structure including a fin-type field effect transistor (FINFET) and a method. The FINFET includes first and second fins. An isolation structure is adjacent the outer sidewall of the first fin at a channel region and, optionally, fills a groove in the outer sidewall so the fin width is reduced. A gate is adjacent the inner sidewall of the first fin at the channel region and extends over the first fin to the isolation structure. The gate is further adjacent an inner sidewall and top of the second fin at a channel region. In some embodiments, a second isolation structure is adjacent an outer sidewall of the second fin at the channel region and, optionally, fills a groove in the outer sidewall so the fin width is reduced. In this case, the gate extends over the second fin to the second isolation structure.
    Type: Application
    Filed: April 17, 2023
    Publication date: October 17, 2024
    Inventors: Navneet K. Jain, David Charles Pritchard, Romain H.A. Feuillette, James P. Mazza, Hong Yu
  • Publication number: 20240274603
    Abstract: A standard cell or integrated circuit (IC) structure includes a substrate including a first active region and a second active region. A first gate electrode is over the first active region; and a second gate electrode over the second active region. A trench isolation electrically isolates the first active region and the first gate electrode from the second active region and the second gate electrode. First ends of the first active region and the first gate electrode abut a first sidewall of the trench isolation and first ends of the second active region and the second gate electrode abut a second, opposing sidewall of the trench isolation. A conductive strap extends over an upper end of the trench isolation and electrically couples the first gate electrode and the second gate electrode.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 15, 2024
    Inventors: David Charles Pritchard, James P. Mazza, Navneet K. Jain, Hong Yu
  • Publication number: 20240170575
    Abstract: Embodiments of the disclosure provide a gate structure over a corner segment of a semiconductor region. A structure according to the disclosure includes a semiconductor region within a substrate. The semiconductor region includes a first edge, a second edge oriented perpendicularly to the first edge, and a first corner segment connecting the first edge to the second edge. A first gate structure extends over the first edge, and entirely covers the first edge and the first corner segment of the semiconductor region.
    Type: Application
    Filed: November 23, 2022
    Publication date: May 23, 2024
    Inventors: Kiril Biserov Borisov, Mohammed Ahmed Fouad Ibrahim Darwish, Francois C. Weisbuch, Shady Ahmed Abdelwahed Ahmed Elshafie, David Charles Pritchard, Benoit Francois Claude Ramadout
  • Patent number: 10262941
    Abstract: Semiconductor devices and methods of fabricating the semiconductor devices with cross coupled contacts using patterning for cross couple pick-up are disclosed. One method includes, for instance: obtaining an intermediate semiconductor device; performing a first lithography to pattern a first shape; performing a second lithography to pattern a second shape overlapping a portion of the first shape; processing the first shape and the second shape to form an isolation region at the overlap; and forming four regions separated by the isolation region. An intermediate semiconductor device is also disclosed.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 16, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Guillaume Bouche, Jason Eugene Stephens, Tuhin Guha Neogi, Kai Sun, Deniz Elizabeth Civay, David Charles Pritchard, Andy Wei
  • Publication number: 20170309560
    Abstract: Semiconductor devices and methods of fabricating the semiconductor devices with cross coupled contacts using patterning for cross couple pick-up are disclosed. One method includes, for instance: obtaining an intermediate semiconductor device; performing a first lithography to pattern a first shape; performing a second lithography to pattern a second shape overlapping a portion of the first shape; processing the first shape and the second shape to form an isolation region at the overlap; and forming four regions separated by the isolation region. An intermediate semiconductor device is also disclosed.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Guillaume BOUCHE, Jason Eugene STEPHENS, Tuhin GUHA NEOGI, Kai SUN, Deniz Elizabeth CIVAY, David Charles PRITCHARD, Andy WEI