Patents by Inventor Fee Li LIE

Fee Li LIE 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: 20250142856
    Abstract: A method and structures are used to fabricate a nanosheet semiconductor device. Nanosheet fins including nanosheet stacks including alternating silicon (Si) layers and silicon germanium (SiGe) layers are formed on a substrate and etched to define a first end and a second end along a first axis between which each nanosheet fin extends parallel to every other nanosheet fin. The SiGe layers are undercut in the nanosheet stacks at the first end and the second end to form divots, and a dielectric is deposited in the divots. The SiGe layers between the Si layers are removed before forming source and drain regions of the nanosheet semiconductor device such that there are gaps between the Si layers of each nanosheet stack, and the dielectric anchors the Si layers. The gaps are filled with an oxide that is removed after removing the dummy gate and prior to forming the replacement gate.
    Type: Application
    Filed: November 1, 2024
    Publication date: May 1, 2025
    Inventors: Marc A. Bergendahl, Kangguo Cheng, Fee Li Lie, Eric R. Miller, John R. Sporre, Sean Teehan
  • Publication number: 20250006664
    Abstract: A structure includes a semiconductor substrate; a plurality of first dielectric layers at a top side of the semiconductor substrate; an active device layer at a top side of the plurality of first dielectric layers; and a plurality of second dielectric layers at a top side of the active device layer. Also included are at least hundreds of metal bodies, each of which is on the order of about 10 nm to about 1000 nm in critical dimension and includes: a first metal plate, at a first level in the plurality of first dielectric layers that is adjacent to the active device layer; a second metal plate, at a second level in the plurality of second dielectric layers that is adjacent to the active device layer; and a first plurality of vias that connect the first metal plate to the second metal plate through the active device layer.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 2, 2025
    Inventors: Nicholas Alexander POLOMOFF, Lawrence A. Clevenger, Matthew Stephen Angyal, FEE LI LIE, Ruilong Xie, Brent A. Anderson, Terence Hook, LEI ZHUANG, Kisik Choi
  • Publication number: 20250006629
    Abstract: A structure includes a semiconductor substrate; a plurality of first dielectric layers at a top side of the substrate; an active device layer at a top side of the first layers; a plurality of second dielectric layers at a top side of the device layer; first and second sense pads at a top side of the second layers; a first metal body electrically connected to the first pad; and a second metal body electrically connected to the second pad. The bodies, with the layers, form a capacitor that couples the pads. Each of the bodies includes: an upper portion that is embedded in the plurality of second layers and is directly connected to a respective one of the first and second pads; a lower portion that is embedded in the plurality of first layers; and a via that connects the upper to the lower portion through the active layer.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 2, 2025
    Inventors: Nicholas Alexander POLOMOFF, Terence Hook, Brent A. Anderson, Lawrence A. Clevenger, Matthew Stephen Angyal, FEE LI LIE, Ruilong Xie, LEI ZHUANG, Kisik Choi
  • Publication number: 20250006590
    Abstract: An exemplary structure includes a semiconductor substrate; a plurality of first dielectric layers at a top side of the substrate; an active device layer at a top side of the first dielectric layers; a plurality of second dielectric layers at a top side of the active device layer; and a metal body. The body includes a first portion that is embedded in the plurality of first dielectric layers. The first portion comprises a first layer of first metal. The body further includes a second portion that is embedded in the plurality of second dielectric layers. The second portion comprises a first layer of second metal. A plurality of vias interconnect the first portion to the second portion through the active device layer. The first layer of the first portion mechanically connects the plurality of vias and the first layer of the second portion mechanically connects the plurality of vias.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 2, 2025
    Inventors: Nicholas Alexander POLOMOFF, Lawrence A. Clevenger, Brent A. Anderson, Matthew Stephen Angyal, Ruilong Xie, FEE LI LIE, Kisik Choi, Terence Hook, LEI ZHUANG
  • Publication number: 20250006663
    Abstract: A structure includes a semiconductor substrate; a plurality of first dielectric layers at a top side of the substrate; an active device layer at a top side of the first layers; a plurality of second dielectric layers at a top side of the device layer; first and second sense pads; and a metal body that electrically connects the pads. The metal body includes a first portion that is embedded in the first layers, made of a first plurality of discrete segments; a second portion that is embedded in the second layers, made of a second plurality of discrete segments, of which a first is electrically connected to the first pad and a second is electrically connected to the second pad; and a plurality of vias that interconnect the first and second portions. Breaking any of the vias reduces the electrical connectivity between the pads.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 2, 2025
    Inventors: Nicholas Alexander POLOMOFF, Terence Hook, Matthew Stephen Angyal, Brent A. Anderson, Lawrence A. Clevenger, Kisik Choi, FEE LI LIE, Ruilong Xie, LEI ZHUANG
  • Publication number: 20240429178
    Abstract: A semiconductor device is provided. The semiconductor device includes a semiconductor device comprising: a back end of the line (BEOL) stack including a dielectric stack, and an active device region in the dielectric stack, the active device region including at least one component selected from the group consisting of transistors, capacitors and nanosheet structures; and a crack stop that extends vertically through the active device region.
    Type: Application
    Filed: June 20, 2023
    Publication date: December 26, 2024
    Inventors: Nicholas Alexander Polomoff, Brent A. Anderson, Lawrence A. Clevenger, Matthew Stephen Angyal, Fee Li Lie, Ruilong Xie, Terence Hook
  • Patent number: 12166110
    Abstract: A method and structures are used to fabricate a nanosheet semiconductor device. Nanosheet fins including nanosheet stacks including alternating silicon (Si) layers and silicon germanium (SiGe) layers are formed on a substrate and etched to define a first end and a second end along a first axis between which each nanosheet fin extends parallel to every other nanosheet fin. The SiGe layers are undercut in the nanosheet stacks at the first end and the second end to form divots, and a dielectric is deposited in the divots. The SiGe layers between the Si layers are removed before forming source and drain regions of the nanosheet semiconductor device such that there are gaps between the Si layers of each nanosheet stack, and the dielectric anchors the Si layers. The gaps are filled with an oxide that is removed after removing the dummy gate and prior to forming the replacement gate.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: December 10, 2024
    Assignee: Adeia Semiconductor Solutions LLC
    Inventors: Marc A. Bergendahl, Kangguo Cheng, Fee Li Lie, Eric R. Miller, John R. Sporre, Sean Teehan
  • Patent number: 12148699
    Abstract: A semiconductor component includes an area of dielectric material extending below an uppermost surface of a substrate. The semiconductor component further includes a trench formed so as to extend from above the uppermost surface of the substrate into the area of dielectric material. The semiconductor component further includes a non-metal liner coating interior surfaces of the trench. The semiconductor component further includes a metal liner coating interior surfaces of the non-metal liner. The semiconductor component further includes a power rail formed in the trench in direct contact with at least one of the metal liner or the non-metal liner such that the power rail extends into the area of dielectric material and above the uppermost surface of the substrate.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: November 19, 2024
    Assignee: International Business Machines Corporation
    Inventors: Sagarika Mukesh, Devika Sarkar Grant, Fee Li Lie, Hosadurga Shobha, Thamarai selvi Devarajan, Aakrati Jain
  • Publication number: 20240332194
    Abstract: An electronic device including a chip module assembly is provided. The chip module assembly includes at least one first semiconductor chip pair located at a first chip level, a bridge die interconnecting the at least one first semiconductor chip pair, and at least one second semiconductor chip pair located on top of the first chip level, wherein the at least one second chip pair are connected to each other through the at least one first semiconductor chip pair and the bridge die.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 3, 2024
    Inventors: Mukta Ghate Farooq, FEE LI LIE
  • Publication number: 20240258113
    Abstract: First lithography and etching are carried out on a semiconductor structure to provide a first intermediate semiconductor structure having a first set of surface features corresponding to a first portion of desired fin formation mandrels. Second lithography and etching are carried out on the first intermediate structure, using a second mask, to provide a second intermediate semiconductor structure having a second set of surface features corresponding to a second portion of the mandrels. The second set of surface features are unequally spaced from the first set of surface features and/or the features have different pitch. The fin formation mandrels are formed in the second intermediate semiconductor structure using the first and second sets of surface features; spacer material is deposited over the mandrels and is etched back to form a third intermediate semiconductor structure having a fin pattern. Etching is carried out on same to produce the fin pattern.
    Type: Application
    Filed: March 21, 2024
    Publication date: August 1, 2024
    Inventors: Fee Li Lie, Dongbing Shao, Robert C. Wong, Yongan Xu
  • Patent number: 12046673
    Abstract: A semiconductor device including a fin structure formed on a first semiconductor region, and a first semiconductor structure controlling the first semiconductor region, the first semiconductor structure formed on a substrate and spaced apart from the first semiconductor region including the fin structure.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: July 23, 2024
    Assignee: International Business Machines Corporation
    Inventors: Fee Li Lie, Shogo Mochizuki, Junli Wang
  • Publication number: 20240203780
    Abstract: A semiconductor structure includes a handler substrate and a device substrate bonded to the handler substrate. The handler substrate comprises a trench, and at least one alignment mark in a bottom surface of the trench. One or more dielectric layers are disposed in the trench and on the at least one alignment mark.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 20, 2024
    Inventors: Somnath Ghosh, Ruilong Xie, Stuart Sieg, Fee Li Lie, Kisik Choi
  • Publication number: 20240203904
    Abstract: A semiconductor structure is provided that includes a stress modulating pattern containing bonding dielectric layer. The stress modulating pattern containing bonding dielectric layer can be formed on a wafer, on a device-containing region that is present on a device wafer, or both a wafer and a device-containing region that is present on a device wafer. The stress modulating pattern is composed of a plurality of patterned structures (metal and/or dielectric) that are embedded at least partially within a bonding dielectric layer. Warpage modulation can be achieved using such a stress modulating pattern containing bonding dielectric layer.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 20, 2024
    Inventors: FEE LI LIE, Hosadurga Shobha, Michael Rizzolo, Aakrati Jain, Sagarika Mukesh, Christopher J. Waskiewicz
  • Publication number: 20240203816
    Abstract: Semiconductor devices and methods of forming the same include a front-end-of-line (FEOL) layer. A back-end-of-line (BEOL) layer includes a thermal transfer structure in contact with the FEOL layer. A carrier wafer is bonded to the BEOL layer and includes a thermal dissipation structure in contact with the thermal transfer structure.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 20, 2024
    Inventors: Kisik Choi, Nicholas Alexander POLOMOFF, Brent A. Anderson, Lawrence A. Clevenger, Ruilong Xie, Terence Hook, Matthew Angyal, FEE LI LIE
  • Publication number: 20240194670
    Abstract: A multi-layer stacked semiconductor device includes a first integrated circuit device and a bonding insulator layer formed upon the first integrated circuit device. The bonding insulator layer includes an insulating material layer and an etch stop layer. The semiconductor device also includes a second integrated circuit device formed over the first integrated circuit device in a stacked configuration. The semiconductor device also includes a bonding insulator layer formed between the second integrated circuit device and the insulating material layer. The insulating material layer and the bonding insulator layer are bonded adjacent to one another.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 13, 2024
    Inventors: Ruqiang Bao, Fee Li Lie, Michael P. Belyansky, Matt Malley
  • Patent number: 11978639
    Abstract: First lithography and etching are carried out on a semiconductor structure to provide a first intermediate semiconductor structure having a first set of surface features corresponding to a first portion of desired fin formation mandrels. Second lithography and etching are carried out on the first intermediate structure, using a second mask, to provide a second intermediate semiconductor structure having a second set of surface features corresponding to a second portion of the mandrels. The second set of surface features are unequally spaced from the first set of surface features and/or the features have different pitch. The fin formation mandrels are formed in the second intermediate semiconductor structure using the first and second sets of surface features; spacer material is deposited over the mandrels and is etched back to form a third intermediate semiconductor structure having a fin pattern. Etching is carried out on same to produce the fin pattern.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: May 7, 2024
    Assignee: Tessera LLC
    Inventors: Fee Li Lie, Dongbing Shao, Robert C. Wong, Yongan Xu
  • Patent number: 11947712
    Abstract: Embodiments are disclosed for a method. The method includes generating a correction datastore indicating shifts in magnitude representing corresponding characters that uniquely identify hardware comprising a computer processing chip. The method further includes generating security masks based on a correction file. Additionally, the method includes using a correction process for the computer processing chip. The generated security masks include corresponding overlays representing the shifts in magnitude with respect to corresponding product masks for the computer processing chip. The method also includes generating the computer processing chip using the security masks and the product masks.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: April 2, 2024
    Assignee: International Business Machines Corporation
    Inventors: Richard C. Johnson, Alex Richard Hubbard, Vinay Pai, Cody J. Murray, Fee Li Lie, Nikhil Jain
  • Publication number: 20240105607
    Abstract: An approach to form a semiconductor structure with a plurality of buried power rails in a semiconductor substrate where at least one buried power rail extends below the backside of the semiconductor substrate. The semiconductor structure provides at least one portion of the first metal layer of the backside power delivery network that surrounds a bottom portion of the buried power rail below the backside of the semiconductor substrate. The bottom portion of the buried power rail is in direct contact with the portion of the first metal layer of the backside power delivery network where the buried power rail and the first metal layer are composed of the same conductive material. The semiconductor structure includes a portion of an interlayer dielectric material isolating the first metal layer of the backside power distribution network from the backside of the semiconductor substrate.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 28, 2024
    Inventors: SOMNATH GHOSH, FEE LI LIE, Ruilong Xie, Kisik Choi
  • Publication number: 20240088268
    Abstract: A method and structures are used to fabricate a nanosheet semiconductor device. Nanosheet fins including nanosheet stacks including alternating silicon (Si) layers and silicon germanium (SiGe) layers are formed on a substrate and etched to define a first end and a second end along a first axis between which each nanosheet fin extends parallel to every other nanosheet fin. The SiGe layers are undercut in the nanosheet stacks at the first end and the second end to form divots, and a dielectric is deposited in the divots. The SiGe layers between the Si layers are removed before forming source and drain regions of the nanosheet semiconductor device such that there are gaps between the Si layers of each nanosheet stack, and the dielectric anchors the Si layers. The gaps are filled with an oxide that is removed after removing the dummy gate and prior to forming the replacement gate.
    Type: Application
    Filed: April 12, 2023
    Publication date: March 14, 2024
    Inventors: Marc A. Bergendahl, Kangguo Cheng, Fee Li Lie, Eric R. Miller, John R. Sporre, Sean Teehan
  • Patent number: RE50174
    Abstract: A semiconductor structure is provided that includes a semiconductor fin portion having an end wall and extending upward from a substrate. A gate structure straddles a portion of the semiconductor fin portion. A first set of gate spacers is located on opposing sidewall surfaces of the gate structure; and a second set of gate spacers is located on sidewalls of the first set of gate spacers. One gate spacer of the second set of gate spacers has a lower portion that directly contacts the end wall of the semiconductor fin portion.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: October 15, 2024
    Assignee: Tessera LLC
    Inventors: Bruce B. Doris, Hong He, Sivananda K. Kanakasabapathy, Gauri Karve, Fee Li Lie, Derrick Liu, Soon-Cheon Seo, Stuart A. Sieg