Patents by Inventor Valluri R. Rao

Valluri R. Rao 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: 20160276424
    Abstract: A three-dimensional inductor is formed in an integrated circuit die using conductive through-body-vias which pass through the body of the die and contact one or more metal interconnect layers on the front side of the die and terminate on the back side of the die. In another embodiment, the through-body-vias may pass through a dielectric material disposed in a plug in the body of the die. In yet another aspect, a transformer may be formed by coupling multiple inductors formed using through-body-vias. In still another aspect, a three-dimensional inductor may include conductors formed of stacks of on chip metallization layers and conductive through-layer-vias disposed in insulation layers between metallization layers. Other embodiments are described.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Inventors: Andreas DUEVEL, Telesphor KAMGAING, Valluri R. RAO, Uwe ZILLMANN
  • Patent number: 9429427
    Abstract: This invention relates to inductive inertial sensors employing a magnetic drive and/or sense architecture. In embodiments, translational gyroscopes utilize a conductive coil made to vibrate in a first dimension as a function of a time varying current driven through the coil in the presence of a magnetic field. Sense coils register an inductance that varies as a function of an angular velocity in a second dimension. In embodiments, the vibrating coil causes first and second mutual inductances in the sense coils to deviate from each other as a function of the angular velocity. In embodiments, self-inductances associated with a pair of meandering coils vary as a function of an angular velocity in a second dimension. In embodiments, package build-up layers are utilized to fabricate the inductive inertial sensors, enabling package-level integrated inertial sensing advantageous in small form factor computing platforms, such as mobile devices.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: August 30, 2016
    Assignee: Intel Corporation
    Inventors: Qing Ma, Feras Eid, Kevin Lin, Johanna M. Swan, Weng Hong Teh, Valluri R. Rao
  • Patent number: 9419339
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include forming a package structure comprising a discrete antenna disposed on a back side of a device, wherein the discrete antenna comprises an antenna substrate, a through antenna substrate via vertically disposed through the antenna substrate. A through device substrate via that is vertically disposed within the device is coupled with the through antenna substrate via, and a package substrate is coupled with an active side of the device.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: August 16, 2016
    Assignee: Intel Corporation
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Ofir Degani
  • Publication number: 20160181211
    Abstract: A die package is described that includes a substrate to carry passive components. In one example, the package has a semiconductor die having active circuitry near a front side of the die and having a back side opposite the front side, and a component substrate near the back side of the die. A plurality of passive electrical components are on the component substrate and a conductive path connects a passive component to the active circuitry. The die has a silicon substrate between the front side and the back side and the conductive path is a through-silicon via through the die from the back side to the active circuit.
    Type: Application
    Filed: September 27, 2013
    Publication date: June 23, 2016
    Applicant: INTEL CORPORATION
    Inventors: TELESPHOR KAMGAING, VALLURI R. RAO
  • Publication number: 20160043471
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include forming a package structure comprising a discrete antenna disposed on a back side of a device, wherein the discrete antenna comprises an antenna substrate, a through antenna substrate via vertically disposed through the antenna substrate. A through device substrate via that is vertically disposed within the device is coupled with the through antenna substrate via, and a package substrate is coupled with an active side of the device.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 11, 2016
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Ofir Degani
  • Patent number: 9166284
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include forming a package structure comprising a discrete antenna disposed on a back side of a device, wherein the discrete antenna comprises an antenna substrate, a through antenna substrate via vertically disposed through the antenna substrate. A through device substrate via that is vertically disposed within the device is coupled with the through antenna substrate via, and a package substrate is coupled with an active side of the device.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: October 20, 2015
    Assignee: Intel Corporation
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Ofir Degani
  • Patent number: 9064709
    Abstract: III-N high voltage MOS capacitors and System on Chip (SoC) solutions integrating at least one III-N MOS capacitor capable of high breakdown voltages (BV) to implement high voltage and/or high power circuits. Breakdown voltages over 4V may be achieved avoiding any need to series couple capacitors in an RFIC and/or PMIC. In embodiments, depletion mode III-N capacitors including a GaN layer in which a two dimensional electron gas (2DEG) is formed at threshold voltages below 0V are monolithically integrated with group IV transistor architectures, such as planar and non-planar silicon CMOS transistor technologies. In embodiments, silicon substrates are etched to provide a (111) epitaxial growth surface over which a GaN layer and III-N barrier layer are formed. In embodiments, a high-K dielectric layer is deposited, and capacitor terminal contacts are made to the 2DEG and over the dielectric layer.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 23, 2015
    Assignee: Intel Corporation
    Inventors: Han Wui Then, Sansaptak Dasgupta, Gerhard Schrom, Valluri R. Rao, Robert S. Chau
  • Publication number: 20150002984
    Abstract: An apparatus including a die; a carrier coupled to the die; and at least one capacitor positioned in or on the carrier, the at least one capacitor including a first electrode, a second electrode and a dielectric material; and a magnet positioned such that a magnetic field at least partially actuates the second electrode toward the first electrode. A method including disposing a die, a first electrode of a capacitor and a magnet on a sacrificial substrate; forming a dielectric layer on the first electrode; patterning a conductive material coupled to the first electrode; patterning a second electrode on the dielectric layer; and removing the sacrificial substrate. A method including exposing a suspended first electrode of a capacitor in a package to a magnetic field; driving a current in a first direction through the first electrode; and establishing a voltage difference between the first electrode and a second electrode.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Weng Hong TEH, Qing Ma, Johanna M. Swan, Valluri R. Rao
  • Publication number: 20140333480
    Abstract: An apparatus includes a die with through-silicon vias and radio frequency integrated circuit capabilities and it is vertically integrated with a phased-array antenna substrate. The through-silicon via and a radio frequency integrated circuit is coupled to a plurality of antenna elements disposed on the phased-array antenna substrate where each of the plurality of antenna elements is coupled to the through-silicon vias and radio frequency integrated circuit through a plurality of through-silicon vias. A process of assembling the through-silicon vias and radio frequency integrated circuit to the phased-array antenna substrate includes testing the apparatus.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Georgios Yorgos Palaskas
  • Patent number: 8816906
    Abstract: An apparatus includes a die with through-silicon vias and radio frequency integrated circuit capabilities and it is vertically integrated with a phased-array antenna substrate. The through-silicon via and a radio frequency integrated circuit is coupled to a plurality of antenna elements disposed on the phased-array antenna substrate where each of the plurality of antenna elements is coupled to the through-silicon vias and radio frequency integrated circuit through a plurality of through-silicon vias. A process of assembling the through-silicon vias and radio frequency integrated circuit to the phased-array antenna substrate includes testing the apparatus.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: August 26, 2014
    Assignee: Intel Corporation
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Yorgos Palaskas
  • Publication number: 20140176368
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include forming a package structure comprising a discrete antenna disposed on a back side of a device, wherein the discrete antenna comprises an antenna substrate, a through antenna substrate via vertically disposed through the antenna substrate. A through device substrate via that is vertically disposed within the device is coupled with the through antenna substrate via, and a package substrate is coupled with an active side of the device.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Ofir Degani
  • Patent number: 8759950
    Abstract: An apparatus includes a radio-frequency die with shielding through-silicon vias and a die backside lattice lid that shield a sector in the RF die from radio- and electromagnetic interference.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: June 24, 2014
    Assignee: Intel Corporation
    Inventors: Telesphor Kamgaing, Valluri R. Rao
  • Publication number: 20140165723
    Abstract: This invention relates to inductive inertial sensors employing a magnetic drive and/or sense architecture. In embodiments, translational gyroscopes utilize a conductive coil made to vibrate in a first dimension as a function of a time varying current driven through the coil in the presence of a magnetic field. Sense coils register an inductance that varies as a function of an angular velocity in a second dimension. In embodiments, the vibrating coil causes first and second mutual inductances in the sense coils to deviate from each other as a function of the angular velocity. In embodiments, self-inductances associated with a pair of meandering coils vary as a function of an angular velocity in a second dimension. In embodiments, package build-up layers are utilized to fabricate the inductive inertial sensors, enabling package-level integrated inertial sensing advantageous in small form factor computing platforms, such as mobile devices.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Inventors: Qing MA, Feras EID, Kevin LIN, Johanna M. SWAN, Weng Hong TEH, Valluri R. RAO
  • Publication number: 20140091845
    Abstract: III-N high voltage MOS capacitors and System on Chip (SoC) solutions integrating at least one III-N MOS capacitor capable of high breakdown voltages (BV) to implement high voltage and/or high power circuits. Breakdown voltages over 4V may be achieved avoiding any need to series couple capacitors in an RFIC and/or PMIC. In embodiments, depletion mode III-N capacitors including a GaN layer in which a two dimensional electron gas (2DEG) is formed at threshold voltages below 0V are monolithically integrated with group IV transistor architectures, such as planar and non-planar silicon CMOS transistor technologies. In embodiments, silicon substrates are etched to provide a (111) epitaxial growth surface over which a GaN layer and III-N barrier layer are formed. In embodiments, a high-K dielectric layer is deposited, and capacitor terminal contacts are made to the 2DEG and over the dielectric layer.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Han Wui THEN, Sansaptak DASGUPTA, Gerhard SCHROM, Valluri R. RAO, Robert S. CHAU
  • Publication number: 20140027880
    Abstract: A three-dimensional inductor is formed in an integrated circuit die using conductive through-body-vias which pass through the body of the die and contact one or more metal interconnect layers on the front side of the die and terminate on the back side of the die. In another embodiment, the through-body-vias may pass through a dielectric material disposed in a plug in the body of the die. In yet another aspect, a transformer may be formed by coupling multiple inductors formed using through-body-vias. In still another aspect, a three-dimensional inductor may include conductors formed of stacks of on chip metallization layers and conductive through-layer-vias disposed in insulation layers between metallization layers. Other embodiments are described.
    Type: Application
    Filed: December 29, 2011
    Publication date: January 30, 2014
    Inventors: Andreas Duevel, Telesphor Kamgaing, Valluri R. Rao, Uwe Zillmann
  • Patent number: 8338813
    Abstract: An apparatus comprising a substrate, a heater formed on the substrate, and a phase-change layer formed on the heater. The heater comprises a heater layer and first and second electrodes electrically coupled to the heater layer. A process comprising forming a heater on a substrate and forming a phase-change layer on the heater. The heater comprises a heater layer and first and second electrodes electrically coupled to the heater layer.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: December 25, 2012
    Assignee: Intel Corporation
    Inventors: Qing Ma, Valluri R. Rao, Tsung-Kuan Allen Chou
  • Publication number: 20120280860
    Abstract: An apparatus includes a die with through-silicon vias and radio frequency integrated circuit capabilities and it is vertically integrated with a phased-array antenna substrate. The through-silicon via and a radio frequency integrated circuit is coupled to a plurality of antenna elements disposed on the phased-array antenna substrate where each of the plurality of antenna elements is coupled to the through-silicon vias and radio frequency integrated circuit through a plurality of through-silicon vias. A process of assembling the through-silicon vias and radio frequency integrated circuit to the phased-array antenna substrate includes testing the apparatus.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 8, 2012
    Inventors: Telesphor Kamgaing, Valluri R. Rao, Yorgos Palaskas
  • Publication number: 20120280366
    Abstract: An apparatus includes a radio-frequency die with shielding through-silicon vias and a die backside lattice lid that shield a sector in the RF die from radio - and electromagnetic interference.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 8, 2012
    Inventors: Telesphor Kamgaing, Valluri R. Rao
  • Publication number: 20120192413
    Abstract: Disclosed are embodiments of a glass core substrate for an integrated circuit (IC) device. The glass core substrate includes a glass core and build-up structures on opposing sides of the glass core. Electrically conductive terminals may be formed on both sides of the glass core substrate. An IC die may be coupled with the terminals on one side of the substrate, whereas the terminals on the opposing side may be coupled with a next-level component, such as a circuit board. The glass core may comprise a single piece of glass in which conductors have been formed, or the glass core may comprise two or more glass sections that have been joined together, each section having conductors. The conductors extend through the glass core, and one or more of the conductors may be electrically coupled with the build-up structures disposed over the glass core. Other embodiments are described and claimed.
    Type: Application
    Filed: April 9, 2012
    Publication date: August 2, 2012
    Inventors: Qing Ma, Quan A. Tran, Robert L. Sankman, Johanna M. Swan, Valluri R. Rao
  • Patent number: 8207453
    Abstract: Disclosed are embodiments of a glass core substrate for an integrated circuit (IC) device. The glass core substrate includes a glass core and build-up structures on opposing sides of the glass core. Electrically conductive terminals may be formed on both sides of the glass core substrate. An IC die may be coupled with the terminals on one side of the substrate, whereas the terminals on the opposing side may be coupled with a next-level component, such as a circuit board. The glass core may comprise a single piece of glass in which conductors have been formed, or the glass core may comprise two or more glass sections that have been joined together, each section having conductors. The conductors extend through the glass core, and one or more of the conductors may be electrically coupled with the build-up structures disposed over the glass core. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: June 26, 2012
    Assignee: Intel Corporation
    Inventors: Qing Ma, Quan A. Tran, Robert L. Sankman, Johanna M. Swan, Valluri R. Rao