Patents by Inventor Archana Venugopal

Archana Venugopal 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: 20240153938
    Abstract: An integrated circuit includes a first transistor array over a semiconductor substrate and is distributed among a first plurality of first transistor banks. A second transistor array in or over the semiconductor substrate is distributed among a second plurality of second transistor banks. A first one of the first transistor banks is located between a first one and a second one of the second transistor banks, and the second one of the second transistor banks is located between the first one of the first transistor banks and a second one of the first transistor banks. The first transistor array and the second transistor array may be alternately operated to implement a voltage-conversion integrated circuit.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 9, 2024
    Inventors: Neil Gibson, Jerry L. Doorenbos, Gerald Gradl, VIOLA Schaeffer, Archana Venugopal, Henry L. Edwards
  • Publication number: 20240153841
    Abstract: In described examples, a method comprises forming a patterned region on a first surface of the semiconductor substrate. The method also comprises forming circuitry in the patterned region. The method further comprises forming a metallic layer on a second surface of the semiconductor substrate, in which the second surface opposes the first surface; and forming a carbon layer on the metallic layer.
    Type: Application
    Filed: December 19, 2023
    Publication date: May 9, 2024
    Applicant: Texas Instruments Incorporated
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Archana Venugopal, Daniel Lee Revier
  • Patent number: 11938715
    Abstract: A microstructure comprises a plurality of interconnected units wherein the units are formed of graphene tubes. The graphene tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, depositing graphitic carbon on the metal microlattice, converting the graphitic carbon to graphene, and removing the metal microlattice.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 26, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Luigi Colombo, Nazila Dadvand, Benjamin Stassen Cook, Archana Venugopal
  • Patent number: 11854933
    Abstract: In described examples, a semiconductor wafer with a thermally conductive surface layer comprises a bulk semiconductor layer having a first surface and a second surface, circuitry on the first surface, a metallic layer attached to the first surface or the second surface, and a graphene layer attached to the metallic layer. The first surface opposes the second surface. The metallic layer comprises a transition metal.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: December 26, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Archana Venugopal, Daniel Lee Revier
  • Publication number: 20230411302
    Abstract: A semiconductor device is described here. The semiconductor device includes a buried layer of a first conductivity type disposed on a semiconductor substrate. The semiconductor device includes a deep trench bypass capacitor extending into the buried layer and terminating in the buried layer. The deep trench bypass capacitor of the semiconductor device includes a first doped region, a dielectric disposed around the first doped region, and a second doped region disposed around the dielectric.
    Type: Application
    Filed: June 15, 2022
    Publication date: December 21, 2023
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James Todd, Archana Venugopal
  • Publication number: 20230378023
    Abstract: An electronic device includes a package structure, conductive leads partially exposed outside the package structure, and a semiconductor die having a semiconductor layer and a multilevel metallization structure, where the semiconductor die is enclosed by the package structure and the multilevel metallization structure includes a heater resistor, a sense resistor, and conductive metal features electrically coupled to respective terminals of the heater resistor and the sense resistor, with the conductive metal features electrically coupled to respective ones of the conductive leads.
    Type: Application
    Filed: September 23, 2022
    Publication date: November 23, 2023
    Inventors: Vinod Rai, Archana Venugopal, Blake Travis
  • Publication number: 20230307312
    Abstract: An integrated circuit has a substrate and an interconnect region disposed on the substrate. The interconnect region includes a plurality of interconnect levels. Each interconnect level includes interconnects in dielectric material. The integrated circuit includes a thermal via in the interconnect region. The thermal via extends vertically in at least one of the interconnect levels in the interconnect region. The thermal via includes a cohered nanoparticle film in which adjacent nanoparticles are cohered to each other. The thermal via has a thermal conductivity higher than dielectric material touching the thermal via. The cohered nanoparticle film is formed by a method which includes an additive process.
    Type: Application
    Filed: May 4, 2023
    Publication date: September 28, 2023
    Inventors: Benjamin Stassen Cook, Archana Venugopal, Luigi Colombo, Robert Reid Doering
  • Publication number: 20230243770
    Abstract: A gas sensor has a microstructure sensing element which comprises a plurality of interconnected units wherein the units are formed of connected graphene tubes. The graphene tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, depositing graphitic carbon on the metal microlattice, converting the graphitic carbon to graphene, and removing the metal microlattice.
    Type: Application
    Filed: March 8, 2023
    Publication date: August 3, 2023
    Applicant: Texas Instruments Incorporated
    Inventors: Archana VENUGOPAL, Benjamin Stassen Cook, Nazila Dadvand, Luigi Colombo
  • Publication number: 20230200238
    Abstract: A microelectronic device including a substrate having a semiconductor material containing an embedded thermoelectric cooler with thermally anisotropic mesas between the cold terminal and the hot terminal of the embedded thermoelectric cooler adjacent to a heat source; the adjacent embedded thermoelectric cooler providing a temperature reduction for the heat source resulting in increased safe operating area (SOA) for the microelectronic device. The thermally anisotropic mesas are formed in parallel with deep trenches used as isolation in the microelectronic device.
    Type: Application
    Filed: June 9, 2022
    Publication date: June 22, 2023
    Inventors: Archana Venugopal, Jingjing Chen
  • Patent number: 11676880
    Abstract: An integrated circuit has a substrate and an interconnect region disposed on the substrate. The interconnect region includes a plurality of interconnect levels. Each interconnect level includes interconnects in dielectric material. The integrated circuit includes a thermal via in the interconnect region. The thermal via extends vertically in at least one of the interconnect levels in the interconnect region. The thermal via includes a cohered nanoparticle film in which adjacent nanoparticles are cohered to each other. The thermal via has a thermal conductivity higher than dielectric material touching the thermal via. The cohered nanoparticle film is formed by a method which includes an additive process.
    Type: Grant
    Filed: November 26, 2016
    Date of Patent: June 13, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Benjamin Stassen Cook, Archana Venugopal, Luigi Colombo, Robert Reid Doering
  • Publication number: 20230170384
    Abstract: An integrated circuit includes a shallow P-type well (SPW) below a surface of a semiconductor substrate and a shallow N-type well (SNW) below the surface. The SPW forms an anode of a diode and the SNW forms a cathode of the diode. The SNW is spaced apart from the SPW by a well space region; and a thin field relief oxide structure lies over the well space region.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 1, 2023
    Inventors: Henry Litzmann Edwards, Joseph Maurice Khayat, Archana Venugopal
  • Publication number: 20220250909
    Abstract: A microstructure comprises a plurality of interconnected units wherein the units are formed of hexagonal boron nitride (h-BN) tubes. The graphene tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, depositing an h-BN precursor on the metal microlattice, converting the h-BN precursor to h-BN, and removing the metal microlattice.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Inventors: Luigi COLOMBO, Nazila DADVAND, Benjamin Stassen COOK, Archana VENUGOPAL
  • Patent number: 11390527
    Abstract: A microstructure comprises a plurality of interconnected units wherein the units are formed of graphene tubes. The graphene tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, depositing graphitic carbon on the metal microlattice, converting the graphitic carbon to graphene, and removing the metal microlattice. A ceramic may be deposited on the graphene and another graphene layer may be deposited on top of the ceramic to create a multi-layered sp2-bonded carbon tube.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 19, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Luigi Colombo, Archana Venugopal
  • Publication number: 20220208640
    Abstract: In described examples, a semiconductor wafer with a thermally conductive surface layer comprises a bulk semiconductor layer having a first surface and a second surface, circuitry on the first surface, a metallic layer attached to the first surface or the second surface, and a graphene layer attached to the metallic layer. The first surface opposes the second surface. The metallic layer comprises a transition metal.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Archana Venugopal, Daniel Lee Revier
  • Patent number: 11370662
    Abstract: A microstructure comprises a plurality of interconnected units wherein the units are formed of hexagonal boron nitride (h-BN) tubes. The graphene tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, depositing an h-BN precursor on the metal microlattice, converting the h-BN precursor to h-BN, and removing the metal microlattice.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 28, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Luigi Colombo, Nazila Dadvand, Benjamin Stassen Cook, Archana Venugopal
  • Patent number: 11355414
    Abstract: In described examples, a circuit (e.g., an integrated circuit) includes a semiconductor substrate that includes a frontside surface and a backside surface. A circuit element is included at the frontside surface. An optional electrical insulator layer can be included adjacent to the backside surface. A distributor layer is included adjacent to the backside surface. In some examples, the distributor layer includes a distributor material that includes a matrix of cohered nanoparticles and metallic particles embedded by the cohered nanoparticles.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: June 7, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Nazila Dadvand, Daniel Lee Revier, Archana Venugopal
  • Publication number: 20220169773
    Abstract: A method of forming a composite material includes photo-initiating a polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice. Unpolymerized monomer is removed from the polymer microlattice. The polymer microlattice is coated with a metal. The metal-coated polymer microlattice is dispersed in a polymer matrix.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 2, 2022
    Inventors: Nazila DADVAND, Benjamin Stassen COOK, Archana VENUGOPAL, Luigi COLOMBO
  • Patent number: 11309388
    Abstract: A switchable array includes: a microstructure of interconnected units formed of graphene tubes with open spaces in the microstructure bounded by the graphene tubes; at least one JFET gate in at least one of the graphene tubes; and a control line having an end connected to the at least one JFET gate. The control line extends to a periphery of the microstructure.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: April 19, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Luigi Colombo, Nazila Dadvand, Archana Venugopal
  • Patent number: 11296237
    Abstract: A microelectronic device includes a gated graphene component over a semiconductor material. The gated graphene component includes a graphitic layer having at least one layer of graphene. The graphitic layer has a channel region, a first connection and a second connection make electrical connections to the graphitic layer adjacent to the channel region. The graphitic layer is isolated from the semiconductor material. A backgate region having a first conductivity type is disposed in the semiconductor material under the channel region. A first contact field region and a second contact field region are disposed in the semiconductor material under the first connection and the second connection, respectively. At least one of the first contact field region and the second contact field region has a second, opposite, conductivity type. A method of forming the gated graphene component in the microelectronic device with a transistor is disclosed.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 5, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Archana Venugopal, Luigi Colombo, Arup Polley
  • Patent number: 11254775
    Abstract: A composite material comprises a polymer matrix having microstructure filler materials that comprise a plurality of interconnected units wherein the units are formed of connected tubes. The tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, growing or depositing a material on the metal microlattice such as graphene, hexagonal boron nitride or other ceramic, and subsequently removing the metal microlattice.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Nazila Dadvand, Benjamin Stassen Cook, Archana Venugopal, Luigi Colombo