Patents by Inventor Stephen M. Gates

Stephen M. Gates 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: 20240112056
    Abstract: A method of constructing a superconducting switch includes providing a substrate. A first superconducting metal line is fabricated on the substrate, wherein the superconducting metal line has a left portion, a right portion, and a center portion patterned along a first crystalline direction of the substrate. One or more etch release holes are provided in the center portion of the first superconducting metal line.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 4, 2024
    Inventors: Vivekananda P. Adiga, Russell A. Budd, Charles Thomas Rettner, Stephen M. Gates
  • Publication number: 20240113015
    Abstract: A method of constructing a superconducting switch includes depositing a thin sacrificial layer on top of a substrate. The sacrificial layer is patterned to remove portions of the sacrificial layer except at a first portion of the substrate. A superconducting metal layer is patterned on top of the substrate and on top of the sacrificial layer. The superconducting metal layer is patterned to form a superconducting metal line over the sacrificial layer. The patterned sacrificial layer is etched from under the superconducting metal line to release the metal line from the substrate.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 4, 2024
    Inventors: Vivekananda P. Adiga, Russell A. Budd, Charles Thomas Rettner, Stephen M. Gates
  • Publication number: 20230334354
    Abstract: A superconducting connecting system includes an anti-fuse structure. There is a first superconducting trace having a first segment that is cantilevered over a cavity a substrate. A second superconducting trace having a second segment is cantilevered over the cavity in the substrate. A first auxiliary segment is coupled to the first segment and suspended over the cavity. A second auxiliary segment is coupled to the second segment and suspended over the cavity. The first segment and the second segment face each other and have a predetermined gap therebetween. The first segment and the second segment are configured to receive an output of a laser. An amount of material of the first and second auxiliary segment is based on creating a fuse ball joint that provides an electrical short between the first superconducting trace and the second superconducting trace, upon receiving the output of the laser.
    Type: Application
    Filed: April 15, 2022
    Publication date: October 19, 2023
    Inventors: Vivekananda P. Adiga, Russell A. Budd, Charles Thomas Rettner, Stephen M. Gates
  • Patent number: 11657314
    Abstract: Techniques regarding microwave-to-optical quantum transducers are provided. For example, one or more embodiments described herein can include an apparatus that can include a microwave resonator on a dielectric substrate and adjacent to an optical resonator, and a photon barrier structure at least partially surrounding an optical resonator, wherein the photon barrier structure is configured to provide isolation of the microwave resonator from optical photons in the dielectric substrate outside the photon barrier structure.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: May 23, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Chi Xiong, Jason S. Orcutt, Ricardo Alves Donaton, Stephen M. Gates, Swetha Kamlapurkar, Abram L Falk
  • Publication number: 20230145368
    Abstract: Techniques regarding microwave-to-optical quantum transducers are provided. For example, one or more embodiments described herein can include an apparatus that can include a microwave resonator on a dielectric substrate and adjacent to an optical resonator, and a photon barrier structure at least partially surrounding an optical resonator, wherein the photon barrier structure is configured to provide isolation of the microwave resonator from optical photons in the dielectric substrate outside the photon barrier structure.
    Type: Application
    Filed: March 3, 2021
    Publication date: May 11, 2023
    Inventors: Chi Xiong, Jason S. Orcutt, Ricardo Alves Donaton, Stephen M. Gates, SWETHA KAMLAPURKAR, Abram L Falk
  • Publication number: 20220158068
    Abstract: The subject disclosure is directed towards layered substrate structures with aligned optical access to electrical devices formed thereon for laser processing and electrical device tuning. According to an embodiment, a layered substrate structure is provided that comprises an optical substrate having a first surface and a second surface and a patterned bonding layer formed on the second surface that comprises a bonding region and an open region, wherein the open region exposes a portion of the second surface. The layered substrate structure further comprises a device chip bonded to the patterned bonding layer via the bonding region and comprising at least one electrical component aligned with the optical substrate and the open region. The at least one electrical component can include for example, a thin film wire, an air bridge, a qubit, an electrode, a capacitor or a resonator.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 19, 2022
    Inventors: Stephen M. Gates, Russell A. Budd, Kevin Shawn Petrarca, Vivekananda P. Adiga, Douglas Max Gill
  • Patent number: 10651252
    Abstract: A method of forming an active matrix pixel that includes forming a driver device including contact regions deposited using a low temperature deposition process on a first portion of an insulating substrate. An electrode of an organic light emitting diode is formed on a second portion of the insulating substrate. The electrode is in electrical communication to receive an output from the driver device. At least one passivation layer is formed over the driver device. A switching device comprising at least one amorphous semiconductor layer is formed on the at least one passivation layer over the driver device.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: May 12, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen M. Gates, Bahman Hekmatshoartabari, Ghavam G. Shahidi, Davood Shahrjerdi
  • Patent number: 9984940
    Abstract: A scaled dielectric stack interlayer, compatible with subsequent high temperature processing with good electrical transport & reliability properties is provided. A method for forming a conformal aSi:H passivation layer on a semiconductor device is described. A patterned semiconductor wafer is placed in in a process chamber with a first layer formed thereon and a second layer formed thereon, the first layer and the second layer being two different materials Next, a SixH(2x+2) based deposition up to a temperature of 400 degrees Celsius is used on the first layer and the second layer thereby forming a conformal aSi:H passivating layer is formed at a higher rate of deposition on the first layer selectively and a lower rate of deposit on the second layer.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: May 29, 2018
    Assignee: International Business Machines Corporation
    Inventors: Jack O. Chu, Stephen M. Gates, Masanobu Hatanaka, Vijay Narayanan, Deborah A. Neumayer, Yohei Ogawa, John Rozen
  • Patent number: 9960117
    Abstract: A semiconductor substrate including one or more conductors is provided. A first layer and a second layer are deposited on the top surface of the conductors. A dielectric cap layer is formed over the semiconductor substrate and air gaps are etched into the dielectric layer. The result is a bilayer cap air gap structure with effective electrical performance.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 1, 2018
    Assignee: International Business Machines Corporation
    Inventors: Stephen M. Gates, Elbert E. Huang, Dimitri R. Kioussis, Christopher J. Penny, Deepika Priyadarshini
  • Patent number: 9905667
    Abstract: A bipolar junction transistor comprises a semiconductor layer disposed on an insulating material, at least a portion of the semiconductor layer forming a base region. The bipolar junction transistor further comprises a transistor emitter laterally disposed on a first side of the base region, where in the transistor emitter is a first doping type and has a first width, and wherein the first width is a lithographic feature size. The bipolar junction transistor further comprises a transistor collector laterally disposed on a second side of the base region, wherein the transistor collector is the first doping type and the first width. The bipolar junction transistor further comprises a central base contact laterally disposed on the base region between the transistor emitter and the transistor collector, wherein the central base contact is a second doping type and has a second width, and wherein the second width is a sub-lithographic feature size.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: February 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: Fabio Carta, Daniel C. Edelstein, Stephen M. Gates, Bahman Hekmatshoartabari, Tak H. Ning
  • Patent number: 9799552
    Abstract: A semiconductor device and a method of fabricating a contact to interface with an interconnect in a semiconductor device are described. The device includes a dielectric layer formed on a semiconductor layer, and a contact fabricated in a via formed within the dielectric layer. An interconnect formed above the contact interfaces with an exposed surface of the contact opposite a surface closest to the semiconductor layer. The contact includes a contact material in a first portion of the contact and an interface metal in a second portion of the contact.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: October 24, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen M. Gates, Gregory M. Fritz, Eric A. Joseph, Terry A. Spooner
  • Patent number: 9784917
    Abstract: Embodiments are directed to a coupler system having an interposer configured to couple optical signals. The interposer includes at least one optoelectronic component formed on a glass substrate. The interposer further includes at least one waveguide formed on the glass substrate and configured to couple the optical signals to or from the at least one optoelectronic component, wherein the at least one waveguide comprises a waveguide material having grain diameters greater than about one micron and an optical loss less than about one decibel per centimeter of optical propagation.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 10, 2017
    Assignee: International Business Machines Corporation
    Inventors: Stephen M. Gates, Joyeeta Nag, Jason S. Orcutt, Jean-Olivier Plouchart, Spyridon Skordas
  • Patent number: 9786550
    Abstract: A semiconductor device and a method of fabricating a contact to interface with an interconnect in a semiconductor device are described. The device includes a dielectric layer formed on a semiconductor layer, and a contact fabricated in a via formed within the dielectric layer. An interconnect formed above the contact interfaces with an exposed surface of the contact opposite a surface closest to the semiconductor layer. The contact includes a contact material in a first portion of the contact and an interface metal in a second portion of the contact.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: October 10, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen M. Gates, Gregory M. Fritz, Eric A. Joseph, Terry A. Spooner
  • Patent number: 9711455
    Abstract: A semiconductor substrate including one or more conductors is provided. A first layer and a second layer are deposited on the top surface of the conductors. A dielectric cap layer is formed over the semiconductor substrate and air gaps are etched into the dielectric layer. The result is a bilayer cap air gap structure with effective electrical performance.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: July 18, 2017
    Assignee: International Business Machines Corporation
    Inventors: Stephen M. Gates, Elbert E. Huang, Dimitri R. Kioussis, Christopher J. Penny, Deepika Priyadarshini
  • Publication number: 20170162664
    Abstract: A bipolar junction transistor comprises a semiconductor layer disposed on an insulating material, at least a portion of the semiconductor layer forming a base region. The bipolar junction transistor further comprises a transistor emitter laterally disposed on a first side of the base region, where in the transistor emitter is a first doping type and has a first width, and wherein the first width is a lithographic feature size. The bipolar junction transistor further comprises a transistor collector laterally disposed on a second side of the base region, wherein the transistor collector is the first doping type and the first width. The bipolar junction transistor further comprises a central base contact laterally disposed on the base region between the transistor emitter and the transistor collector, wherein the central base contact is a second doping type and has a second width, and wherein the second width is a sub-lithographic feature size.
    Type: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Inventors: Fabio Carta, Daniel C. Edelstein, Stephen M. Gates, Bahman Hekmatshoartabari, Tak H. Ning
  • Patent number: 9653567
    Abstract: A bipolar junction transistor comprises a semiconductor layer disposed on an insulating material, at least a portion of the semiconductor layer forming a base region. The bipolar junction transistor further comprises a transistor emitter laterally disposed on a first side of the base region, where in the transistor emitter is a first doping type and has a first width, and wherein the first width is a lithographic feature size. The bipolar junction transistor further comprises a transistor collector laterally disposed on a second side of the base region, wherein the transistor collector is the first doping type and the first width. The bipolar junction transistor further comprises a central base contact laterally disposed on the base region between the transistor emitter and the transistor collector, wherein the central base contact is a second doping type and has a second width, and wherein the second width is a sub-lithographic feature size.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: May 16, 2017
    Assignee: International Business Machines Corporation
    Inventors: Fabio Carta, Daniel C. Edelstein, Stephen M. Gates, Bahman Hekmatshoartabari, Tak H. Ning
  • Publication number: 20170097467
    Abstract: Embodiments are directed to a coupler system having an interposer configured to couple optical signals. The interposer includes at least one optoelectronic component formed on a glass substrate. The interposer further includes at least one waveguide formed on the glass substrate and configured to couple the optical signals to or from the at least one optoelectronic component, wherein the at least one waveguide comprises a waveguide material having grain diameters greater than about one micron and an optical loss less than about one decibel per centimeter of optical propagation.
    Type: Application
    Filed: October 5, 2015
    Publication date: April 6, 2017
    Inventors: Stephen M. Gates, Joyeeta Nag, Jason S. Orcutt, Jean-Olivier Plouchart, Spyridon Skordas
  • Publication number: 20160379869
    Abstract: A semiconductor device and a method of fabricating a contact to interface with an interconnect in a semiconductor device are described. The device includes a dielectric layer formed on a semiconductor layer, and a contact fabricated in a via formed within the dielectric layer. An interconnect formed above the contact interfaces with an exposed surface of the contact opposite a surface closest to the semiconductor layer. The contact includes a contact material in a first portion of the contact and an interface metal in a second portion of the contact.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Inventors: Stephen M. Gates, Gregory M. Fritz, Eric A. Joseph, Terry A. Spooner
  • Publication number: 20160379880
    Abstract: A semiconductor device and a method of fabricating a contact to interface with an interconnect in a semiconductor device are described. The device includes a dielectric layer formed on a semiconductor layer, and a contact fabricated in a via formed within the dielectric layer. An interconnect formed above the contact interfaces with an exposed surface of the contact opposite a surface closest to the semiconductor layer. The contact includes a contact material in a first portion of the contact and an interface metal in a second portion of the contact.
    Type: Application
    Filed: November 23, 2015
    Publication date: December 29, 2016
    Inventors: Stephen M. Gates, Gregory M. Fritz, Eric A. Joseph, Terry A. Spooner
  • Publication number: 20160359013
    Abstract: A bipolar junction transistor comprises a semiconductor layer disposed on an insulating material, at least a portion of the semiconductor layer forming a base region. The bipolar junction transistor further comprises a transistor emitter laterally disposed on a first side of the base region, where in the transistor emitter is a first doping type and has a first width, and wherein the first width is a lithographic feature size. The bipolar junction transistor further comprises a transistor collector laterally disposed on a second side of the base region, wherein the transistor collector is the first doping type and the first width. The bipolar junction transistor further comprises a central base contact laterally disposed on the base region between the transistor emitter and the transistor collector, wherein the central base contact is a second doping type and has a second width, and wherein the second width is a sub-lithographic feature size.
    Type: Application
    Filed: July 18, 2016
    Publication date: December 8, 2016
    Inventors: Fabio Carta, Daniel C. Edelstein, Stephen M. Gates, Bahman Hekmatshoartabari, Tak H. Ning