Patents by Inventor Hsu Yu

Hsu Yu 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: 11437483
    Abstract: Gate-all-around integrated circuit structures having dual nanowire/nanoribbon channel structures, and methods of fabricating gate-all-around integrated circuit structures having dual nanowire/nanoribbon channel structures, are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires above a substrate. A dielectric cap is over the first vertical arrangement of nanowires. A second vertical arrangement of nanowires is above the substrate. Individual ones of the second vertical arrangement of nanowires are laterally staggered with individual ones of the first vertical arrangement of nanowires and the dielectric cap.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: September 6, 2022
    Assignee: Intel Corporation
    Inventors: Tanuj Trivedi, Rahul Ramaswamy, Jeong Dong Kim, Babak Fallahazad, Hsu-Yu Chang, Ting Chang, Nidhi Nidhi, Walid M. Hafez
  • Publication number: 20220093588
    Abstract: Adjacent gate-all-around integrated circuit structures having non-merged epitaxial source or drain regions, and methods of fabricating adjacent gate-all-around integrated circuit structures having non-merged epitaxial source or drain regions, are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires and a second vertical arrangement of nanowires above a substrate. One or more gate stacks 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 adjacent ones of the first epitaxial source or drain structures and between adjacent ones of the second epitaxial source or drain structures.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 24, 2022
    Inventors: Sairam SUBRAMANIAN, Walid M. HAFEZ, Hsu-Yu CHANG, Chia-Hong JAN, Tanuj TRIVEDI
  • Patent number: 11251079
    Abstract: A method for forming semiconductor device structure is provided. The method includes forming a gate stack over a semiconductor substrate and forming a spacer element over a sidewall of the gate stack. The method also includes forming a dielectric layer over the semiconductor substrate to surround the gate stack and the spacer element and replacing the gate stack with a metal gate stack. The method further includes forming a protection element over the metal gate stack and forming a conductive contact partially surrounded by the dielectric layer. A portion of the conductive contact is formed directly above a portion of the protection element.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: February 15, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hua-Li Hung, Chih-Lun Lu, Hsu-Yu Huang, Tsung-Fan Yin, Ying-Ting Hsia, Yi-Wei Chiu, Li-Te Hsu
  • Publication number: 20210305243
    Abstract: Gate endcap architectures having relatively short vertical stack, and methods of fabricating gate endcap architectures having relatively short vertical stack, are described. In an example, an integrated circuit structure includes a first semiconductor fin along a first direction. A second semiconductor fin is along the first direction. A trench isolation material is between the first semiconductor fin and the second semiconductor fin. The trench isolation material has an uppermost surface below a top of the first and second semiconductor fins. A gate endcap isolation structure is between the first semiconductor fin and the second semiconductor fin and is along the first direction. The gate endcap isolation structure is on the uppermost surface of the trench isolation material.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Inventors: Sairam SUBRAMANIAN, Walid M. HAFEZ, Hsu-Yu CHANG, Chia-Hong JAN
  • Patent number: 11121040
    Abstract: An apparatus comprising at least one transistor in a first area of a substrate and at least one transistor in a second area, a work function material on a channel region of each of the at least one transistor, wherein an amount of work function material in the first area is different than an amount of work function material in the second area. A method comprising depositing a work function material and a masking material on at least one transistor body in a first area and at least one in a second area; removing less than an entire portion of the masking material so that the portion of the work function material that is exposed in the first area is different than that exposed in the second area; removing the exposed work function material; and forming a gate electrode on each of the at least one transistor bodies.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 14, 2021
    Assignee: Intel Corporation
    Inventors: Chen-Guan Lee, Everett S. Cassidy-Comfort, Joodong Park, Walid M. Hafez, Chia-Hong Jan, Rahul Ramaswamy, Neville L. Dias, Hsu-Yu Chang
  • Publication number: 20210280683
    Abstract: Gate-all-around integrated circuit structures having dual nanowire/nanoribbon channel structures, and methods of fabricating gate-all-around integrated circuit structures having dual nanowire/nanoribbon channel structures, are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires above a substrate. A dielectric cap is over the first vertical arrangement of nanowires. A second vertical arrangement of nanowires is above the substrate. Individual ones of the second vertical arrangement of nanowires are laterally staggered with individual ones of the first vertical arrangement of nanowires and the dielectric cap.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 9, 2021
    Inventors: Tanuj TRIVEDI, Rahul RAMASWAMY, Jeong Dong KIM, Babak FALLAHAZAD, Hsu-Yu CHANG, Ting CHANG, Nidhi NIDHI, Walid M. HAFEZ
  • Publication number: 20210257452
    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, are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires and a second vertical arrangement of nanowires above a substrate, the first vertical arrangement of nanowires having a greater number of active nanowires than the second vertical arrangement of nanowires, and the first and second vertical arrangements of nanowires having co-planar uppermost nanowires. The integrated circuit structure also includes a first vertical arrangement of nanoribbons and a second vertical arrangement of nanoribbons above the substrate, the first vertical arrangement of nanoribbons having a greater number of active nanoribbons than the second vertical arrangement of nanoribbons, and the first and second vertical arrangements of nanoribbons having co-planar uppermost nanoribbons.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 19, 2021
    Inventors: Tanuj TRIVEDI, Jeong Dong KIM, Walid M. HAFEZ, Hsu-Yu CHANG, Rahul RAMASWAMY, Ting CHANG, Babak FALLAHAZAD
  • Publication number: 20210257453
    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, are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires and a second vertical arrangement of nanowires above a substrate, the first vertical arrangement of nanowires having a greater number of active nanowires than the second vertical arrangement of nanowires, and the first and second vertical arrangements of nanowires having co-planar uppermost nanowires. The integrated circuit structure also includes a first vertical arrangement of nanoribbons and a second vertical arrangement of nanoribbons above the substrate, the first vertical arrangement of nanoribbons having a greater number of active nanoribbons than the second vertical arrangement of nanoribbons, and the first and second vertical arrangements of nanoribbons having co-planar uppermost nanoribbons.
    Type: Application
    Filed: May 5, 2021
    Publication date: August 19, 2021
    Inventors: Tanuj TRIVEDI, Jeong Dong KIM, Walid M. HAFEZ, Hsu-Yu CHANG, Rahul RAMASWAMY, Ting CHANG, Babak FALLAHAZAD
  • Patent number: 11094782
    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, are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires and a second vertical arrangement of nanowires above a substrate, the first vertical arrangement of nanowires having a greater number of active nanowires than the second vertical arrangement of nanowires, and the first and second vertical arrangements of nanowires having co-planar uppermost nanowires. The integrated circuit structure also includes a first vertical arrangement of nanoribbons and a second vertical arrangement of nanoribbons above the substrate, the first vertical arrangement of nanoribbons having a greater number of active nanoribbons than the second vertical arrangement of nanoribbons, and the first and second vertical arrangements of nanoribbons having co-planar uppermost nanoribbons.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 17, 2021
    Assignee: Intel Corporation
    Inventors: Tanuj Trivedi, Jeong Dong Kim, Walid M. Hafez, Hsu-Yu Chang, Rahul Ramaswamy, Ting Chang, Babak Fallahazad
  • Patent number: 11075286
    Abstract: A transistor including a source and a drain each formed in a substrate; a channel disposed in the substrate between the source and drain, wherein the channel includes opposing sidewalls with a distance between the opposing sidewalls defining a width dimension of the channel and wherein the opposing sidewalls extend a distance below a surface of the substrate; and a gate electrode on the channel. A method of forming a transistor including forming a source and a drain in an area of a substrate; forming a source contact on the source and a drain contact on the drain; after forming the source contact and the drain contact, forming a channel in the substrate in an area between the source and drain, the channel including a body having opposing sidewalls separated by a length dimension; and forming a gate contact on the channel.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 27, 2021
    Assignee: Intel Corporation
    Inventors: Chia-Hong Jan, Walid M. Hafez, Neville L. Dias, Rahul Ramaswamy, Hsu-Yu Chang, Roman W. Olac-Vaw, Chen-Guan Lee
  • Publication number: 20210193844
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a source, a drain, and a semiconductor channel between the source and the drain. In an embodiment, the semiconductor channel has a non-uniform strain through a thickness of the semiconductor channel. In an embodiment, the semiconductor device further comprises a gate stack around the semiconductor channel.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 24, 2021
    Inventors: Rahul RAMASWAMY, Hsu-Yu CHANG, Babak FALLAHAZAD, Hsiao-Yuan WANG, Ting CHANG, Tanuj TRIVEDI, Jeong Dong KIM, Nidhi NIDHI, Walid M. HAFEZ
  • Publication number: 20210184001
    Abstract: Embodiments disclosed herein include nanowire and nanoribbon devices with non-uniform dielectric thicknesses. In an embodiment, the semiconductor device comprises a substrate and a plurality of first semiconductor layers in a vertical stack over the substrate. The first semiconductor layers may have a first spacing. In an embodiment, a first dielectric surrounds each of the first semiconductor layers, and the first dielectric has a first thickness. The semiconductor device may further comprise a plurality of second semiconductor layers in a vertical stack over the substrate, where the second semiconductor layers have a second spacing that is greater than the first spacing. In an embodiment a second dielectric surrounds each of the second semiconductor layers, and the second dielectric has a second thickness that is greater than the first thickness.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Tanuj TRIVEDI, Rahul RAMASWAMY, Jeong Dong KIM, Ting CHANG, Walid M. HAFEZ, Babak FALLAHAZAD, Hsu-Yu CHANG, Nidhi NIDHI
  • Publication number: 20210184051
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a substrate, a first transistor over the substrate, where the first transistor comprises a vertical stack of first semiconductor channels, and a first gate dielectric surrounding each of the first semiconductor channels. The first gate dielectric has a first thickness. In an embodiment, the semiconductor device further comprises a second transistor over the substrate, where the second transistor comprises a second semiconductor channel. The second semiconductor channel comprises pair of sidewalls and a top surface. In an embodiment, a second gate dielectric is over the pair of sidewalls and the top surface of the fin, where the second gate dielectric has a second thickness that is greater than the first thickness.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Tanuj TRIVEDI, Rahul RAMASWAMY, Jeong Dong KIM, Ting CHANG, Walid M. HAFEZ, Babak FALLAHAZAD, Hsu-Yu CHANG, Nidhi NIDHI
  • Publication number: 20210184000
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a substrate, and a first transistor of a first conductivity type over the substrate. In an embodiment, the first transistor comprises a first semiconductor channel, and a first gate electrode around the first semiconductor channel. In an embodiment, the semiconductor device further comprises a second transistor of a second conductivity type above the first transistor. The second transistor comprises a second semiconductor channel, and a second gate electrode around the second semiconductor channel. In an embodiment, the second gate electrode and the first gate electrode comprise different materials.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Rahul RAMASWAMY, Walid M. HAFEZ, Tanuj TRIVEDI, Jeong Dong KIM, Ting CHANG, Babak FALLAHAZAD, Hsu-Yu CHANG, Nidhi NIDHI
  • Publication number: 20210184032
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment a semiconductor device comprises a substrate, a source region over the substrate, a drain region over the substrate, and a semiconductor body extending from the source region to the drain region. In an embodiment, the semiconductor body has a first region with a first conductivity type and a second region with a second conductivity type. In an embodiment, the semiconductor device further comprises a gate structure over the first region of the semiconductor body, where the gate structure is closer to the source region than the drain region.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Nidhi NIDHI, Rahul RAMASWAMY, Walid M. HAFEZ, Hsu-Yu CHANG, Ting CHANG, Babak FALLAHAZAD, Tanuj TRIVEDI, Jeong Dong KIM
  • Publication number: 20210184045
    Abstract: Embodiments disclosed herein include nanoribbon and nanowire semiconductor devices. In an embodiment, the semiconductor device comprises a nanowire disposed above a substrate. In an embodiment, the nanowire has a first dopant concentration, and the nanowire comprises a pair of tip regions on opposite ends of the nanowire. In an embodiment, the tip regions comprise a second dopant concentration that is greater than the first dopant concentration. In an embodiment, the semiconductor device further comprises a gate structure over the nanowire. In an embodiment, the gate structure is wrapped around the nanowire, and the gate structure defines a channel region of the device. In an embodiment, a pair of source/drain regions are on opposite sides of the gate structure, and both source/drain regions contact the nanowire.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Rahul RAMASWAMY, Walid M. HAFEZ, Nidhi NIDHI, Ting CHANG, Hsu-Yu CHANG, Tanuj TRIVEDI, Jeong Dong KIM, Babak FALLAHAZAD
  • Publication number: 20210183850
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a semiconductor substrate and a source. The source has a first conductivity type and a first insulator separates the source from the semiconductor substrate. The semiconductor device further comprises a drain. The drain has a second conductivity type that is opposite from the first conductivity type, and a second insulator separates the drain from the semiconductor substrate. In an embodiment, the semiconductor further comprises a semiconductor body between the source and the drain, where the semiconductor body is spaced away from the semiconductor substrate.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Nidhi NIDHI, Rahul RAMASWAMY, Walid M. HAFEZ, Hsu-Yu CHANG, Ting CHANG, Babak FALLAHAZAD, Tanuj TRIVEDI, Jeong Dong KIM, Ayan KAR, Benjamin ORR
  • Publication number: 20210183857
    Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such semiconductor devices. In an embodiment, the semiconductor device comprises a substrate, and a first transistor over the substrate. In an embodiment, the first transistor comprises a first semiconductor channel above the substrate, a first gate dielectric surrounding the first semiconductor channel, and a first gate electrode over the first gate dielectric. In an embodiment, the semiconductor device further comprises a second transistor over the substrate. In an embodiment, the second transistor comprises a second semiconductor channel above the substrate, a second gate dielectric surrounding the second semiconductor channel, where the second gate dielectric is different than the first gate dielectric, and a second gate electrode over the second gate dielectric, where the first gate electrode and the second gate electrode comprise the same material.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Walid M. HAFEZ, Rahul RAMASWAMY, Tanuj TRIVEDI, Jeong Dong KIM, Ting CHANG, Babak FALLAHAZAD, Hsu-Yu CHANG, Nidhi NIDHI
  • Patent number: 10964690
    Abstract: Techniques are disclosed for forming semiconductor structures including resistors between gates on self-aligned gate edge architecture. A semiconductor structure includes a first semiconductor fin extending in a first direction, and a second semiconductor fin adjacent to the first semiconductor fin, extending in the first direction. A first gate structure is disposed proximal to a first end of the first semiconductor fin and over the first semiconductor fin in a second direction, orthogonal to the first direction, and a second gate structure is disposed proximal to a second end of the first semiconductor fin and over the first semiconductor fin in the second direction. A first structure comprising isolation material is centered between the first and second semiconductor fins. A second structure comprising resistive material is disposed in the first structure, the second structure extending at least between the first gate structure and the second gate structure.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 30, 2021
    Assignee: Intel Corporation
    Inventors: Roman W. Olac-Vaw, Walid M. Hafez, Chia-Hong Jan, Hsu-Yu Chang, Neville L. Dias, Rahul Ramaswamy, Nidhi Nidhi, Chen-Guan Lee
  • Patent number: 10930729
    Abstract: Fin-based thin film resistors, and methods of fabricating fin-based thin film resistors, are described. In an example, an integrated circuit structure includes a fin protruding through a trench isolation region above a substrate. The fin includes a semiconductor material and has a top surface, a first end, a second end, and a pair of sidewalls between the first end and the second end. An isolation layer is conformal with the top surface, the first end, the second end, and the pair of sidewalls of the fin. A resistor layer is conformal with the isolation layer conformal with the top surface, the first end, the second end, and the pair of sidewalls of the fin. A first anode cathode electrode is electrically connected to the resistor layer. A second anode or cathode electrode is electrically connected to the resistor layer.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 23, 2021
    Assignee: Intel Corporation
    Inventors: Chia-Hong Jan, Walid M. Hafez, Neville L. Dias, Rahul Ramaswamy, Hsu-Yu Chang, Roman W. Olac-Vaw, Chen-Guan Lee