Patents by Inventor James B. Hannon

James B. Hannon 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: 11842771
    Abstract: Programmable memory devices having a cross-point array of polymer junctions with individually-programmed conductances are provided. In one aspect, a method of forming a memory device includes: forming first metal lines on an insulating substrate; forming polymeric resistance elements on the first metal lines; and forming second metal lines over the polymeric resistance elements with a single one of the polymeric resistance elements present at each intersection of the first/second metal lines forming a cross-point array. A memory device and a method of operating a memory device are also provided.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: December 12, 2023
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, James B. Hannon
  • Patent number: 11737373
    Abstract: A superconducting device which includes a substrate, multiple niobium leads formed on the substrate, a niobium silicide (NbSix) passivation layer formed on a surface of at least one of the multiple niobium leads, and an aluminum lead formed directly on at least a portion of the NbSix passivation layer such that an interface therebetween is substantially free of oxygen and oxidized material, where the multiple niobium leads and the aluminum lead are constructed to carry a supercurrent while in use.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 22, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Matthew W. Copel, James B. Hannon, Adam M. Pyzyna
  • Patent number: 11476238
    Abstract: An interconnect for a semiconductor device includes: a carrier; a UV programmable chip mounted on the carrier using a first array of solder connections; a UV light source mounted on the carrier using a second array of solder connections, the UV light source being in optical communication with the UV programmable chip; and a plurality of transmission lines extending on or through the carrier and providing electrical communication between the UV programmable chip and the UV light source.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: October 18, 2022
    Assignee: International Business Machines Corporation
    Inventors: Frank Robert Libsch, Ali Afzali-Ardakani, James B. Hannon
  • Publication number: 20220102614
    Abstract: A superconducting device which includes a substrate, multiple niobium leads formed on the substrate, a niobium silicide (NbSix) passivation layer formed on a surface of at least one of the multiple niobium leads, and an aluminum lead formed directly on at least a portion of the NbSix passivation layer such that an interface therebetween is substantially free of oxygen and oxidized material, where the multiple niobium leads and the aluminum lead are constructed to carry a supercurrent while in use.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Inventors: Matthew W. Copel, James B. Hannon, Adam M. Pyzyna
  • Patent number: 11276796
    Abstract: Photovoltaic structures having multiple absorber layers separated by a diffusion barrier are provided. In one aspect, a method of forming an absorber on a substrate includes: depositing a first layer of light absorbing material on the substrate; depositing a diffusion barrier; depositing a second layer of light absorbing material on the diffusion barrier, wherein the first layer of light absorbing material has a different band gap from the second layer of light absorbing material; and annealing the absorber, wherein the diffusion barrier prevents diffusion of elements between the first layer of light absorbing material and the second layer of light absorbing material during the annealing. A solar cell and method for formation thereof are also provided.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: March 15, 2022
    Assignee: International Business Machines Corporation
    Inventors: Priscilla D. Antunez, Arthur W. Ellis, Richard A. Haight, James B. Hannon, Satoshi Oida
  • Publication number: 20220044728
    Abstract: Programmable memory devices having a cross-point array of polymer junctions with individually-programmed conductances are provided. In one aspect, a method of forming a memory device includes: forming first metal lines on an insulating substrate; forming polymeric resistance elements on the first metal lines; and forming second metal lines over the polymeric resistance elements with a single one of the polymeric resistance elements present at each intersection of the first/second metal lines forming a cross-point array. A memory device and a method of operating a memory device are also provided.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Inventors: Ali Afzali-Ardakani, James B. Hannon
  • Patent number: 11176995
    Abstract: Programmable memory devices having a cross-point array of polymer junctions with individually-programmed conductances are provided. In one aspect, a method of forming a memory device includes: forming first metal lines on an insulating substrate; forming polymeric resistance elements on the first metal lines; and forming second metal lines over the polymeric resistance elements with a single one of the polymeric resistance elements present at each intersection of the first/second metal lines forming a cross-point array. A memory device and a method of operating a memory device are also provided.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 16, 2021
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, James B. Hannon
  • Publication number: 20210351169
    Abstract: An interconnect for a semiconductor device includes: a carrier; a UV programmable chip mounted on the carrier using a first array of solder connections; a UV light source mounted on the carrier using a second array of solder connections, the UV light source being in optical communication with the UV programmable chip; and a plurality of transmission lines extending on or through the carrier and providing electrical communication between the UV programmable chip and the UV light source.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 11, 2021
    Inventors: Frank Robert Libsch, Ali Afzali-Ardakani, James B. Hannon
  • Patent number: 11054320
    Abstract: A force detector and method for using the same include a lens and a cantilever below the lens. A laser above the lens is configured to emit a beam of light that reflects from a surface of the lens and the cantilever. A processor is configured to determine a force between the lens and the cantilever based on interference between the light reflected from the surface and the light reflected from the cantilever.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 6, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Arthur W. Ellis, Richard A. Haight, James B. Hannon, Rudolf M. Tromp
  • Patent number: 11043270
    Abstract: Programmable devices and methods for fabricating the programmable devices are described. In an example, a method for fabricating a programmable device can include bonding a UV light source to a computer chip by flip-chip mounting the UV light source to the computer chip. The UV light source can be configured to emit UV light towards a UV erasable area of the computer chip to perform UV erasing on the computer chip. The method can further include bonding a carrier to the computer chip by flip chip mounting the computer chip to the carrier using a second array of bond pads.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: June 22, 2021
    Assignee: International Business Machines Corporation
    Inventors: Frank Robert Libsch, Ali Afzali-Ardakani, James B. Hannon
  • Patent number: 10938340
    Abstract: An integrated kesterite (e.g., CZT(S,Se)) photovoltaic device and battery is provided. In one aspect, a method of forming an integrated photovoltaic device and battery includes: forming a photovoltaic device having a substrate, an electrically conductive layer, an absorber layer, a buffer layer, a transparent front contact, and a metal grid; removing the substrate and the electrically conductive layer from the photovoltaic device to expose a backside surface of the absorber layer; forming at least one back contact on the backside surface of the absorber layer; and integrating the photovoltaic device with a battery, wherein the integrating includes connecting i) a positive contact of the battery with the back contact on the backside surface of the absorber layer and ii) a negative contact of the battery with the metal grid on the transparent front contact. An integrated photovoltaic device and battery is also provided.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: March 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Priscilla D. Antunez, Richard A. Haight, James B. Hannon, Teodor K. Todorov
  • Publication number: 20210020241
    Abstract: Programmable memory devices having a cross-point array of polymer junctions with individually-programmed conductances are provided. In one aspect, a method of forming a memory device includes: forming first metal lines on an insulating substrate; forming polymeric resistance elements on the first metal lines; and forming second metal lines over the polymeric resistance elements with a single one of the polymeric resistance elements present at each intersection of the first/second metal lines forming a cross-point array. A memory device and a method of operating a memory device are also provided.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 21, 2021
    Inventors: Ali Afzali-Ardakani, James B. Hannon
  • Patent number: 10832775
    Abstract: Memory devices are provided having a cross-point array of polymer junctions with individually-programmed conductances that can be reset. In one aspect, a memory device is provided. The memory device includes: bottom metal lines; top metal lines; and polymer junctions in between the bottom metal lines and the top metal lines, wherein the polymer junctions include an organic polymer doped with a spiropyran and an acid. A method of forming and a method of operating the memory device are also provided.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 10, 2020
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, James B. Hannon
  • Patent number: 10761089
    Abstract: Techniques for selective placement of carbon nanotubes using bifunctional acid monolayers are provided. In one aspect, a method for selective placement of carbon nanotubes on a metal oxide surface includes the steps of: dispersing poly-fluorene polymer-wrapped carbon nanotubes in an organic solvent; creating a patterned monolayer of a bifunctional acid on the metal oxide surface, wherein the bifunctional acid comprises a first acid functional group for binding to the metal oxide surface, and a second acid functional group for binding to the poly-fluorene polymer-wrapped carbon nanotubes; and contacting the poly-fluorene polymer-wrapped carbon nanotubes dispersed in the organic solvent with the patterned monolayer of the bifunctional acid on the metal oxide surface to selectively place the carbon nanotubes on the metal oxide surface via the patterned monolayer of the bifunctional acid. A carbon nanotube-based device and method of formation thereof are also provided.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: September 1, 2020
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, James B. Hannon, George S. Tulevski
  • Patent number: 10749050
    Abstract: A method for forming a back contact on an absorber layer in a photovoltaic device includes forming a two dimensional material on a first substrate. An absorber layer including Cu—Zn—Sn—S(Se) (CZTSSe) is grown over the first substrate on the two dimensional material. A buffer layer is grown on the absorber layer on a side opposite the two dimensional material. The absorber layer is exfoliated from the two dimensional material to remove the first substrate from a backside of the absorber layer opposite the buffer layer. A back contact is deposited on the absorber layer.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: August 18, 2020
    Assignee: International Business Machines Corporation
    Inventors: Richard A. Haight, James B. Hannon, Satoshi Oida
  • Publication number: 20200072687
    Abstract: A force detector and method for using the same include a lens and a cantilever below the lens. A laser above the lens is configured to emit a beam of light that reflects from a surface of the lens and the cantilever. A processor is configured to determine a force between the lens and the cantilever based on interference between the light reflected from the surface and the light reflected from the cantilever.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 5, 2020
    Inventors: Arthur W. Ellis, Richard A. Haight, James B. Hannon, Rudolf M. Tromp
  • Patent number: 10564056
    Abstract: A force detector and method for using the same includes a lens. A cantilever is disposed below the movable lens. A laser is disposed above the movable lens and is configured to emit a beam of light that reflects from a surface of the lens and the cantilever. A processor is configured to determine a force between the movable lens and the cantilever based on a change in phase in images produced by the light reflected from the spherical surface and the light reflected from the cantilever.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: February 18, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Arthur W. Ellis, Richard A. Haight, James B. Hannon, Rudolf M. Tromp
  • Publication number: 20190341883
    Abstract: An integrated kesterite (e.g., CZT(S,Se)) photovoltaic device and battery is provided. In one aspect, a method of forming an integrated photovoltaic device and battery includes: forming a photovoltaic device having a substrate, an electrically conductive layer, an absorber layer, a buffer layer, a transparent front contact, and a metal grid; removing the substrate and the electrically conductive layer from the photovoltaic device to expose a backside surface of the absorber layer; forming at least one back contact on the backside surface of the absorber layer; and integrating the photovoltaic device with a battery, wherein the integrating includes connecting i) a positive contact of the battery with the back contact on the backside surface of the absorber layer and ii) a negative contact of the battery with the metal grid on the transparent front contact. An integrated photovoltaic device and battery is also provided.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Priscilla D. Antunez, Richard A. Haight, James B. Hannon, Teodor K. Todorov
  • Publication number: 20190305169
    Abstract: Photovoltaic structures having multiple absorber layers separated by a diffusion barrier are provided. In one aspect, a method of forming an absorber on a substrate includes: depositing a first layer of light absorbing material on the substrate; depositing a diffusion barrier; depositing a second layer of light absorbing material on the diffusion barrier, wherein the first layer of light absorbing material has a different band gap from the second layer of light absorbing material; and annealing the absorber, wherein the diffusion barrier prevents diffusion of elements between the first layer of light absorbing material and the second layer of light absorbing material during the annealing. A solar cell and method for formation thereof are also provided.
    Type: Application
    Filed: June 11, 2019
    Publication date: October 3, 2019
    Inventors: Priscilla D. Antunez, Arthur W. Ellis, Richard A. Haight, James B. Hannon, Satoshi Oida
  • Patent number: 10396707
    Abstract: An integrated kesterite (e.g., CZT(S,Se)) photovoltaic device and battery is provided. In one aspect, a method of forming an integrated photovoltaic device and battery includes: forming a photovoltaic device having a substrate, an electrically conductive layer, an absorber layer, a buffer layer, a transparent front contact, and a metal grid; removing the substrate and the electrically conductive layer from the photovoltaic device to expose a backside surface of the absorber layer; forming at least one back contact on the backside surface of the absorber layer; and integrating the photovoltaic device with a battery, wherein the integrating includes connecting i) a positive contact of the battery with the back contact on the backside surface of the absorber layer and ii) a negative contact of the battery with the metal grid on the transparent front contact. An integrated photovoltaic device and battery is also provided.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 27, 2019
    Assignee: International Business Machines Corporation
    Inventors: Priscilla D. Antunez, Richard A. Haight, James B. Hannon, Teodor K. Todorov