Patents by Inventor Leonard P. (Skip) Steuart

Leonard P. (Skip) Steuart 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).

  • Patent number: 11721580
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment a semiconductor device comprises a first interlayer dielectric (ILD), a plurality of source/drain (S/D) contacts in the first ILD, a plurality of gate contacts in the first ILD, wherein the gate contacts and the S/D contacts are arranged in an alternating pattern, and wherein top surfaces of the gate contacts are below top surfaces of the S/D contacts so that a channel defined by sidewall surfaces of the first ILD is positioned over each of the gate contacts, mask layer partially filling a first channel over a first gate contact, and a fill metal filling a second channel over a second gate contact that is adjacent to the first gate contact.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 8, 2023
    Assignee: Intel Corporation
    Inventors: Leonard P. Guler, Michael Harper, Suzanne S. Rich, Charles H. Wallace, Curtis Ward, Richard E. Schenker, Paul Nyhus, Mohit K. Haran, Reken Patel, Swaminathan Sivakumar
  • Patent number: 11715775
    Abstract: Self-aligned gate endcap architectures with gate-all-around devices having epitaxial source or drain structures are described. For example, a structure includes first and second vertical arrangements of nanowires, the nanowires of the second vertical arrangement of nanowires having a horizontal width greater than a horizontal width of the nanowires of the first vertical arrangement of nanowires. First and second gate stacks are over the first and second vertical arrangements of nanowires, respectively. A gate endcap isolation structure is between the first and second gate stacks, respectively. First epitaxial source or drain structures are at ends of the first vertical arrangement of nanowires and have an uppermost surface below an uppermost surface of the gate endcap isolation structure. Second epitaxial source or drain structures are at ends of the second vertical arrangement of nanowires and have an uppermost surface below the uppermost surface of the gate endcap isolation structure.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: August 1, 2023
    Assignee: Intel Corporation
    Inventors: Leonard P. Guler, Biswajeet Guha, Tahir Ghani, Swaminathan Sivakumar
  • Publication number: 20230207623
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a vertical stack of semiconductor channels, a source on a first side of the vertical stack of semiconductor channels, and a drain on a second side of the vertical stack of semiconductor channels, In an embodiment, a metal is below the source and in direct contact with the source, where a centerline of the metal is substantially aligned with a centerline of the source.
    Type: Application
    Filed: December 24, 2021
    Publication date: June 29, 2023
    Inventors: Leonard P. GULER, Mohammad HASAN, Mohit K. HARAN, Mauro J. KOBRINSKY, Charles H. WALLACE, Tahir GHANI
  • Publication number: 20230207466
    Abstract: Embodiments include semiconductor devices. In an embodiment, a semiconductor device comprises a first non-planar transistor over a substrate and a second non-planar transistor over the substrate and parallel to the first non-planar transistor. In an embodiment, a gate structure is over the first non-planar transistor and the second non-planar transistor. In an embodiment, a power rail is between the first non-planar transistor and the second non-planar transistor. In an embodiment, a top surface of the power rail is below a top surface of a gate structure.
    Type: Application
    Filed: December 24, 2021
    Publication date: June 29, 2023
    Inventors: Leonard P. GULER, Jeffrey S. LEIB, Chanaka D. MUNASINGHE, Charles H. WALLACE, Tahir GHANI, Mohit K. HARAN
  • Publication number: 20230207704
    Abstract: Embodiments of the disclosure are directed to advanced integrated circuit structure fabrication and, in particular, to integrated circuits with self-aligned tub architectures. Other embodiments may be described or claimed.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 29, 2023
    Inventors: Dan S. LAVRIC, YenTing CHIU, Mohit K. HARAN, Allen B. GARDINER, Leonard P. GULER, Andy Chih-Hung WEI, Tahir GHANI
  • Publication number: 20230192856
    Abstract: The present invention provides methods of dosing and administration of an activatable anti-CTLA-4 antibody, such as an activatable ipilimumab.
    Type: Application
    Filed: May 11, 2021
    Publication date: June 22, 2023
    Inventors: Leonard P. JAMES, Michelle BROWN
  • Publication number: 20230197855
    Abstract: Gate-all-around integrated circuit structures having source or drain structures with regrown central portions, and methods of fabricating gate-all-around integrated circuit structures having source or drain structures with regrown central portions, are described. For example, an integrated circuit structure includes a vertical arrangement of nanowires. A gate stack is over the vertical arrangements of nanowires. A first epitaxial source or drain structure is at a first end of the vertical arrangement of nanowires. A second epitaxial source or drain structure is at a second end of the vertical arrangement of nanowires. One or both of the first or second epitaxial source or drain structures has a central portion within an outer portion, and an interface between the central portion and the outer portion.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 22, 2023
    Inventors: Mohammad HASAN, Nitesh KUMAR, Rushabh SHAH, Anand S. MURTHY, Pratik PATEL, Leonard P. GULER, Tahir GHANI
  • Publication number: 20230197780
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a fin with a first end and a second end. In an embodiment, a first dielectric covers the first end of the fin, and a second dielectric covers the second end of the fin. In an embodiment, a gate structure is over the first end of the fin, where the gate structure is on a top surface of the fin and a top surface of the first dielectric.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 22, 2023
    Inventors: Leonard P. GULER, Tahir GHANI, Charles H. WALLACE
  • Publication number: 20230197838
    Abstract: Gate-all-around integrated circuit structures having source or drain-last structures, and methods of fabricating gate-all-around integrated circuit structures having source or drain-last structures, are described. For example, a method of fabricating an integrated circuit structure includes forming a vertical arrangement of nanowires. A permanent gate stack is then formed over the vertical arrangements of nanowires. The permanent gate stack includes a high-k gate dielectric layer and a metal gate electrode. Subsequent to forming the permanent gate stack, a first epitaxial source or drain structure is formed at a first end of the vertical arrangement of nanowires, and a second epitaxial source or drain structure is formed at a second end of the vertical arrangement of nanowires.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 22, 2023
    Inventors: Mohammad HASAN, Leonard P. GULER, Anand S. Murthy, Pratik PATEL, Tahir GHANI
  • Publication number: 20230197854
    Abstract: Integrated circuit structures having a dielectric anchor and confined epitaxial source or drain structure, and methods of fabricating integrated circuit structures having a dielectric anchor and confined epitaxial source or drain structure, are described. For example, an integrated circuit structure includes a sub-fin in a shallow trench isolation (STI) structure. A plurality of horizontally stacked nanowires is over the sub-fin. A gate dielectric material layer is surrounding the plurality of horizontally stacked nanowires. A gate electrode structure is over the gate dielectric material layer. A confined epitaxial source or drain structure is at an end of the plurality of horizontally stacked nanowires. A dielectric anchor is laterally spaced apart from the plurality of horizontally stacked nanowires and recessed into a first portion of the STI structure, the dielectric anchor having an uppermost surface below an uppermost surface of the confined epitaxial source or drain structure.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 22, 2023
    Inventors: Leonard P. GULER, Tahir GHANI, Charles H. WALLACE, Mohit K. HARAN, Mohammad HASAN, Aryan NAVABI-SHIRAZI, Allen B. GARDINER
  • Publication number: 20230197722
    Abstract: Gate-all-around integrated circuit structures having epitaxial source or drain region lateral isolation are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires and a second vertical arrangement of nanowires. A gate stack is over the first and second vertical arrangements of nanowires. First epitaxial source or drain structures are at ends of the first vertical arrangement of nanowires. Second epitaxial source or drain structures are at ends of the second vertical arrangement of nanowires. An intervening dielectric structure is between neighboring ones of the first epitaxial source or drain structures and the second epitaxial source or drain structures. The intervening dielectric structure has a top surface co-planar with a top surface of the gate structure.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 22, 2023
    Inventors: Mohammad HASAN, Mohit K. HARAN, Leonard P. GULER, Pratik PATEL, Tahir GHANI, Anand S. MURTHY, Makram ABD EL QADER
  • Publication number: 20230187517
    Abstract: Integrated circuit structures having a dielectric anchor void, and methods of fabricating integrated circuit structures having a dielectric anchor void, are described. For example, an integrated circuit structure includes a sub-fin in a shallow trench isolation (STI) structure. A plurality of horizontally stacked nanowires is over the sub-fin. A gate dielectric material layer is surrounding the horizontally stacked nanowires. A gate electrode structure is over the gate dielectric material layer. A dielectric anchor is laterally spaced apart from the plurality of horizontally stacked nanowires and recessed into a first portion of the STI structure. A second portion of the STI structure on a side of the plurality of horizontally stacked nanowires opposite the dielectric anchor has a trench therein. A dielectric gate plug is on the dielectric anchor.
    Type: Application
    Filed: December 14, 2021
    Publication date: June 15, 2023
    Inventors: Leonard P. GULER, Charles H. WALLACE, Tahir GHANI
  • Publication number: 20230187444
    Abstract: Integrated circuit structures having gate cut offset, and methods of fabricating integrated circuit structures having gate cut offset, are described. For example, an integrated circuit structure includes a first vertical stack of horizontal nanowires. A second vertical stack of horizontal nanowires is spaced apart from and parallel with the first vertical stack of horizontal nanowires. A gate structure includes a first gate structure portion over the first vertical stack of horizontal nanowires, a second gate structure over the second vertical stack of horizontal nanowires, and a gate cut between the first gate structure portion and the second gate structure portion, the gate cut laterally closer to the second vertical stack of horizontal nanowires than to the first vertical stack of horizontal nanowires.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 15, 2023
    Inventors: Sukru YEMENICIOGLU, Xinning WANG, Allen B. GARDINER, Tahir GHANI, Mohit K. HARAN, Leonard P. GULER
  • Publication number: 20230187441
    Abstract: Integrated circuit structures having trench contact flyover structures, and methods of fabricating integrated circuit structures having trench contact flyover structures, are described. For example, an integrated circuit structure includes a plurality of horizontally stacked nanowires. A gate dielectric material layer is surrounding the plurality of horizontally stacked nanowires. A gate electrode structure is over the gate dielectric material layer. An epitaxial source or drain structure is at an end of the plurality of horizontally stacked nanowires. A conductive trench contact structure is vertically over the epitaxial source or drain structure, the conductive trench contact structure electrically isolated from the epitaxial source or drain structure.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 15, 2023
    Inventors: Leonard P. GULER, Tahir GHANI, Charles H. WALLACE, Mohit K. HARAN, Sukru YEMENICIOGLU, Chanaka D. MUNASINGHE
  • Publication number: 20230187356
    Abstract: Jumper gates for advanced integrated circuit structures are described. For example, an integrated circuit structure includes a first vertical stack of horizontal nanowire segments. A second vertical stack of horizontal nanowire segments is spaced apart from the first vertical stack of horizontal nanowire segments. A conductive structure is laterally between and in direct electrical contact with the first vertical stack of horizontal nanowire segments and with the second vertical stack of horizontal nanowire segments. A first source or drain structure is coupled to the first vertical stack of horizontal nanowire segments at a side opposite the conductive structure. A second source or drain structure is coupled to the second vertical stack of horizontal nanowire segments at a side opposite the conductive structure.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 15, 2023
    Inventors: Sukru YEMENICIOUGLU, Leonard P. GULER, Gilbert DEWEY, Tahir GHANI
  • Publication number: 20230187515
    Abstract: Described herein are integrated circuit structures having versatile channel placement, and methods of fabricating integrated circuit structures having versatile channel placement. In an example, an integrated circuit structure includes a first vertical stack of horizontal nanowires having a first width. A second vertical stack of horizontal nanowires is immediately neighboring and parallel with the first vertical stack of horizontal nanowires and has a second width greater than the first width. A third vertical stack of horizontal nanowires is immediately neighboring and parallel with the second vertical stack of horizontal nanowires and has the first width.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 15, 2023
    Inventors: Sukru YEMENICIOGLU, Tahir GHANI, Xinning WANG, Leonard P. GULER, Charles H. WALLACE, Mohit K. HARAN
  • Publication number: 20230187494
    Abstract: A structure includes a first vertical stack of horizontal nanowires having a first width. A second vertical stack of horizontal nanowires is spaced apart from and parallel with the first vertical stack of horizontal nanowires and has the first width. A first gate structure includes a first gate structure portion over the first vertical stack of horizontal nanowires, a second gate structure portion over the second vertical stack of horizontal nanowires, and a gate cut between the first gate structure portion and the second gate structure portion. A third vertical stack of horizontal nanowires has a second width greater than the first width. A fourth vertical stack of horizontal nanowires is spaced apart from and parallel with the third vertical stack of horizontal nanowires and has the second width. A second gate structure is continuous over the third vertical stack of horizontal nanowires and over the fourth vertical stack of horizontal nanowires.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 15, 2023
    Inventors: Sukru YEMENICIOGLU, Tahir GHANI, Andy Chih-Hung WEI, Leonard P. GULER, Charles H. WALLACE, Mohit K. HARAN
  • Publication number: 20230178622
    Abstract: Gate-all-around integrated circuit structures having depopulated channel structures, and methods of fabricating gate-all-around integrated circuit structures having depopulated channel structures using a directed bottom-up approach, are described. For example, an integrated circuit structure includes a vertical arrangement of nanowires above a substrate. A gate stack is over and around the vertical arrangement of nanowires. A first epitaxial source or drain structure is at a first end of the vertical arrangement of nanowires. A second epitaxial source or drain structure is at a second end of the vertical arrangement of nanowires, the second end opposite the first end, wherein at least one of the first or second epitaxial source or drain structures is coupled to fewer than all nanowires of the vertical arrangement of nanowires.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 8, 2023
    Inventors: Leonard P. GULER, Clifford ONG, Mohammad HASAN, Tahir GHANI, Charles H. WALLACE
  • Publication number: 20230145089
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such semiconductor devices. In an embodiment, a method of fabricating a semiconductor device comprises, forming a first grating of parallel first lines, forming a second grating of parallel second lines, wherein the second lines are substantially orthogonal to the first lines, and wherein the first lines and second lines define a plurality of first openings, disposing a conformal mask layer over the first lines and the second lines, wherein the conformal mask layer partially fills the first openings and defines a second opening within each of the first openings, disposing a hardmask over the conformal mask layer, wherein the hardmask fills the second openings, patterning third openings into the hardmask, wherein the third openings clear the hardmask from at least one of the second openings, and removing the mask layer proximate to cleared second openings to clear first openings.
    Type: Application
    Filed: January 12, 2023
    Publication date: May 11, 2023
    Inventors: Leonard P. GULER, Chul-Hyun LIM, Paul A. NYHUS, Elliot N. TAN, Charles H. WALLACE
  • Publication number: 20230095402
    Abstract: Contact over active gate (COAG) structures with conductive trench contact taps are described. In an example, an integrated circuit structure includes a plurality of gate structures above a substrate, each of the gate structures including a gate insulating layer thereon. A plurality of conductive trench contact structures is alternating with the plurality of gate structures, each of the conductive trench contact structures including a trench insulating layer thereon. One of the plurality of conductive trench contact structures includes a conductive tap structure protruding through the corresponding trench insulating layer. An interlayer dielectric material is above the trench insulating layers and the gate insulating layers. A conductive structure is in direct contact with the conductive tap structure of the one of the plurality of conductive trench contact structures.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventors: Manish CHANDHOK, Elijah V. KARPOV, Mohit K. HARAN, Reken PATEL, Charles H. WALLACE, Gurpreet SINGH, Florian GSTREIN, Eungnak HAN, Urusa ALAAN, Leonard P. GULER, Paul A. NYHUS