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: 20200075779
    Abstract: A microelectronic device includes a gated graphene component. The gated graphene component has a graphitic layer containing one or more layers of graphene. The graphitic layer has a channel region, a first contact region adjacent to the channel region and a second contact region adjacent to the channel region. A patterned hexagonal boron nitride (hBN) layer is disposed on the graphitic layer above the channel region. A gate is located over the patterned hBN layer above the channel region. A first connection is disposed on the graphitic layer in the first contact region, and a second connection is disposed on the graphitic layer in the second contact region. The patterned hBN layer does not extend completely under the first connection or under the second connection. A method of forming the gated graphene component in the microelectronic device is disclosed.
    Type: Application
    Filed: October 23, 2019
    Publication date: March 5, 2020
    Inventors: Archana Venugopal, Luigi Colombo
  • Publication number: 20200051893
    Abstract: An integrated circuit has a substrate including semiconductor material and a resistor in an interconnect region, above a first level of interconnect lines. The integrated circuit further includes an electrically isolated thermal conduit having one or more interconnect lines in every interconnect level lower than the resistor. The interconnect lines of the thermal conduit are directly connected through one or more vertical interconnects, including contacts, and possibly vias, to a gate structure located on a dielectric material over the semiconductor material of the substrate. The thermal conduit is electrically isolated from the resistor, from all active components in the integrated circuit, and from the semiconductor material of the substrate.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Inventors: Dhishan Kande, Archana Venugopal
  • Patent number: 10529641
    Abstract: An integrated circuit has a thermal routing structure above a top interconnect level. The top interconnect level includes interconnects connected to lower interconnect levels, and does not include bond pads, probe pads, input/output pads, or a redistribution layer to bump bond pads. The thermal routing structure extends over a portion, but not all, of a plane of the integrated circuit containing the top interconnect level. The thermal routing structure includes a layer of nanoparticles in which adjacent nanoparticles are attached to each other. The layer of nanoparticles is free of an organic binder material. The thermal routing structure has a thermal conductivity higher than the metal in the top interconnect level. The layer of nanoparticles is formed by an additive process.
    Type: Grant
    Filed: November 26, 2016
    Date of Patent: January 7, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Archana Venugopal, Benjamin Stassen Cook, Luigi Colombo, Robert Reid Doering
  • Patent number: 10490673
    Abstract: A microelectronic device includes a gated graphene component. The gated graphene component has a graphitic layer containing one or more layers of graphene. The graphitic layer has a channel region, a first contact region adjacent to the channel region and a second contact region adjacent to the channel region. A patterned hexagonal boron nitride (hBN) layer is disposed on the graphitic layer above the channel region. A gate is located over the patterned hBN layer above the channel region. A first connection is disposed on the graphitic layer in the first contact region, and a second connection is disposed on the graphitic layer in the second contact region. The patterned hBN layer does not extend completely under the first connection or under the second connection. A method of forming the gated graphene component in the microelectronic device is disclosed.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: November 26, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Archana Venugopal, Luigi Colombo
  • Patent number: 10475725
    Abstract: An integrated circuit has a substrate including semiconductor material and a resistor in an interconnect region, above a first level of interconnect lines. The integrated circuit further includes an electrically isolated thermal conduit having one or more interconnect lines in every interconnect level lower than the resistor. The interconnect lines of the thermal conduit are directly connected through one or more vertical interconnects, including contacts, and possibly vias, to a gate structure located on a dielectric material over the semiconductor material of the substrate. The thermal conduit is electrically isolated from the resistor, from all active components in the integrated circuit, and from the semiconductor material of the substrate.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 12, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Dhishan Kande, Archana Venugopal
  • Patent number: 10468324
    Abstract: A microelectronic device includes a heat spreader layer on an electrode of a component and a metal interconnect on the heat spreader layer. The heat spreader layer is disposed above a top surface of a substrate of the semiconductor device. The heat spreader layer is 100 nanometers to 3 microns thick, has an in-plane thermal conductivity of at least 150 watts/meter-° K, and an electrical resistivity less than 100 micro-ohm-centimeters.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 5, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Archana Venugopal, Marie Denison, Luigi Colombo, Sameer Pendharkar
  • Publication number: 20190288122
    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: Application
    Filed: May 28, 2019
    Publication date: September 19, 2019
    Inventors: Archana Venugopal, Luigi Colombo, Arup Polley
  • Publication number: 20190273166
    Abstract: A microelectronic device includes a gated graphene component. The gated graphene component has a graphitic layer containing one or more layers of graphene. The graphitic layer has a channel region, a first contact region adjacent to the channel region and a second contact region adjacent to the channel region. A patterned hexagonal boron nitride (hBN) layer is disposed on the graphitic layer above the channel region. A gate is located over the patterned hBN layer above the channel region. A first connection is disposed on the graphitic layer in the first contact region, and a second connection is disposed on the graphitic layer in the second contact region. The patterned hBN layer does not extend completely under the first connection or under the second connection. A method of forming the gated graphene component in the microelectronic device is disclosed.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 5, 2019
    Applicant: Texas Instruments Incorporated
    Inventors: Archana Venugopal, Luigi Colombo
  • Publication number: 20190229051
    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 graphitic via in the interconnect region. The graphitic via vertically connects a first interconnect in a first interconnect level to a second interconnect in a second, higher, interconnect level. The graphitic via includes a cohered nanoparticle film of nanoparticles in which adjacent nanoparticles cohere to each other, and a layer of graphitic material disposed on the cohered nanoparticle film. The nanoparticles include one or more metals suitable for catalysis of the graphitic material. The cohered nanoparticle film is formed by a method which includes an additive process. The graphitic via is electrically coupled to an active component of the integrated circuit.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Inventors: Archana Venugopal, Benjamin Stassen Cook, Luigi Colombo, Robert Reid Doering
  • Publication number: 20190204395
    Abstract: In described examples, a 3D magnetic sensing block includes a plurality of interconnected unit cells including at least a first unit cell formed of first interconnected conducting segments, and a second unit cell formed of second interconnected conducting segments. The plurality of interconnected unit cells forms a lattice. The first unit cell is a first sensing element, and the second unit cell is a second sensing element.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Archana VENUGOPAL, Benjamin Stassen COOK, Nazila DADVAND, Luigi COLOMBO
  • Publication number: 20190202958
    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: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Nazila DADVAND, Benjamin Stassen COOK, Archana VENUGOPAL, Luigi COLOMBO
  • Publication number: 20190206793
    Abstract: A structure for a semiconductor device includes a dielectric layer and a metal layer. The structure also includes a plurality of unit cells. Each unit cell is formed of interconnected segments. The plurality of unit cells forms a lattice. The lattice is between the dielectric layer and the metal layer.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Archana VENUGOPAL, Benjamin Stassen COOK, Nazila DADVAND, Luigi COLOMBO
  • Publication number: 20190202700
    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: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Benjamin Stassen COOK, Nazila DADVAND, Luigi COLOMBO, Archana VENUGOPAL
  • Publication number: 20190204252
    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: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Archana VENUGOPAL, Benjamin Stassen COOK, Nazila DADVAND, Luigi COLOMBO
  • Publication number: 20190202174
    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: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Luigi COLOMBO, Nazila DADVAND, Benjamin Stassen COOK, Archana VENUGOPAL
  • Publication number: 20190202696
    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: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Luigi COLOMBO, Nazila DADVAND, Benjamin Stassen COOK, Archana VENUGOPAL
  • Publication number: 20190207002
    Abstract: A structure includes a metal layer and a graphene sheet having at least one hole. The graphene sheet is contained at least partly within the metal layer.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 4, 2019
    Inventors: Luigi COLOMBO, Archana VENUGOPAL, Benjamin Stassen COOK, Nazila DADVAND
  • Publication number: 20190206788
    Abstract: An interconnect structure for a semiconductor device includes a plurality of unit cells. Each unit cell is formed of interconnected conducting segments. The plurality of unit cells forms a conducting lattice.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Benjamin Stassen COOK, Nazila DADVAND, Archana VENUGOPAL, Luigi COLOMBO
  • Patent number: 10304967
    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: March 2, 2018
    Date of Patent: May 28, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Archana Venugopal, Luigi Colombo, Arup Polley
  • Publication number: 20190139861
    Abstract: An integrated circuit has a substrate including semiconductor material and a resistor in an interconnect region, above a first level of interconnect lines. The integrated circuit further includes an electrically isolated thermal conduit having one or more interconnect lines in every interconnect level lower than the resistor. The interconnect lines of the thermal conduit are directly connected through one or more vertical interconnects, including contacts, and possibly vias, to a gate structure located on a dielectric material over the semiconductor material of the substrate. The thermal conduit is electrically isolated from the resistor, from all active components in the integrated circuit, and from the semiconductor material of the substrate.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 9, 2019
    Applicant: Texas Instruments Incorporated
    Inventors: Dhishan Kande, Archana Venugopal