Patents by Inventor Duixian Liu

Duixian Liu 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: 20170125895
    Abstract: Antenna package structures are provided to implement wireless communications packages. For example, an antenna package includes a package carrier and a package cover. The package carrier includes an antenna ground plane and an antenna feed line. The package cover includes a planar lid having a planar antenna element formed on a first surface of the planar lid. The package cover is bonded to a first surface of the package carrier with the first surface of the planar lid facing the first surface of the package carrier, and with the planar antenna element aligned to the antenna ground plane and the antenna feed line of the package carrier, wherein the first surface of the planar lid is disposed at a distance from the first surface of the package carrier to provide an air space between the planar antenna element and the package carrier.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Christian Wilhelmus Baks, Xiaoxiong Gu, Duixian Liu, Alberto Valdes-Garcia
  • Patent number: 9620464
    Abstract: Antenna package structures are provided to implement wireless communications packages. For example, an antenna package includes a package carrier and a package cover. The package carrier includes an antenna ground plane and an antenna feed line. The package cover includes a planar lid having a planar antenna element formed on a first surface of the planar lid. The package cover is bonded to a first surface of the package carrier with the first surface of the planar lid facing the first surface of the package carrier, and with the planar antenna element aligned to the antenna ground plane and the antenna feed line of the package carrier, wherein the first surface of the planar lid is disposed at a distance from the first surface of the package carrier to provide an air space between the planar antenna element and the package carrier.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 11, 2017
    Assignee: International Business Machines Corporation
    Inventors: Christian Wilhelmus Baks, Xiaoxiong Gu, Duixian Liu, Alberto Valdes-Garcia
  • Patent number: 9577314
    Abstract: Antenna devices, antenna systems and methods of their fabrication are disclosed. One such antenna device includes a semiconductor chip and a chip package. The semiconductor chip includes at least one antenna that is integrated into a dielectric layer of the semiconductor chip and is configured to transmit electromagnetic waves. In addition, the chip package includes at least one ground plane, where the semiconductor chip is mounted on the chip package such that the ground plane(s) is disposed at a predetermined distance from the antenna to implement a reflection of at least a portion of the electromagnetic waves.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: February 21, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Duixian Liu, Arun S. Natarajan, Jean-Olivier Plouchart, Scott K. Reynolds
  • Patent number: 9537224
    Abstract: Systems, methods, devices and apparatuses directed to transceiver devices are disclosed. In accordance with one method, a first set of antenna positions in a first section of a set of sections of a circuit layout for the circuit package is selected. The method further includes selecting another set of antenna positions in another section of the circuit layout such that an arrangement of selected antenna positions of the other set is different from an arrangement of selected antenna positions of a previously selected set of antenna positions. The selecting another set of positions in another section is iterated until selections have been made for a total number of antennas. The selecting the other set is performed such that consecutive unselected positions in the other section do not exceed a predetermined number of positions. In addition, antenna elements are formed at the selected positions to fabricate the circuit package.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 3, 2017
    Assignee: International Business Machines Corporation
    Inventors: Daniel J. Friedman, Xiaoxiong Gu, Duixian Liu, Arun S. Natarajan, Scott K. Reynolds, Alberto Valdes Garcia
  • Patent number: 9537199
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 3, 2017
    Assignee: International Business Machines Corporation
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 9531052
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: December 27, 2016
    Assignee: International Business Machines Corporation
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Publication number: 20160352023
    Abstract: Package structures are provided for integrally packaging antennas with semiconductor RFIC (radio frequency integrated circuit) chips to form compact integrated radio/wireless communications systems that operate in the millimeter-wave and terahertz frequency ranges. For example, a package structure includes an RFIC chip, and an antenna package bonded to the RFIC chip. The antenna package includes a glass substrate, at least one planar antenna element formed on a first surface of the glass substrate, a ground plane formed on a second surface of the glass substrate, opposite the first surface, and an antenna feed line formed through the glass substrate and connected to the at least one planar antenna element. The antenna package is bonded to a surface of the RFIC chip using a layer of adhesive material.
    Type: Application
    Filed: August 10, 2016
    Publication date: December 1, 2016
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Peter Jerome Sorce, Cornelia Kang-I Tsang
  • Publication number: 20160336637
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Publication number: 20160336282
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Publication number: 20160336638
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 9472859
    Abstract: Package structures are provided for integrally packaging antennas with semiconductor RFIC (radio frequency integrated circuit) chips to form compact integrated radio/wireless communications systems that operate in the millimeter-wave and terahertz frequency ranges. For example, a package structure includes an RFIC chip, and an antenna package bonded to the RFIC chip. The antenna package includes a glass substrate, at least one planar antenna element formed on a first surface of the glass substrate, a ground plane formed on a second surface of the glass substrate, opposite the first surface, and an antenna feed line formed through the glass substrate and connected to the at least one planar antenna element. The antenna package is bonded to a surface of the RFIC chip using a layer of adhesive material.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 18, 2016
    Assignee: International Business Machines Corporation
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Peter Jerome Sorce, Cornelia Kang-I Tsang
  • Publication number: 20160292470
    Abstract: RFID (radio frequency identification) systems are provided in which tag and interrogator devices implement a hybrid framework for signaling including an optical transmitter/receiver system and an RF transmitter/receiver system. For instance, an RFID tag device includes: optical receiver circuitry configured to receive an optical signal having an embedded clock signal from an interrogator device, and convert the optical signal into an electrical signal comprising the embedded clock signal; clock extraction circuitry configured to extract the embedded clock signal from the electrical signal, and output the extracted clock signal as a clock signal for controlling clocking functions of the tag device; voltage regulator circuitry configured to generate a regulated supply voltage from the electrical signal, wherein the regulated supply voltage is utilized as a bias voltage for components of the tag device; and data transmitter circuitry configured to wirelessly transmit tag data to the interrogator device.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 6, 2016
    Inventors: Daniel J. Friedman, Duixian Liu, Mihai A. Sanduleanu
  • Publication number: 20160294481
    Abstract: RFID (radio frequency identification) systems are provided in which tag and interrogator devices implement a hybrid framework for signaling including an optical transmitter/receiver system and an RF transmitter/receiver system. For instance, an RFID tag device includes: optical receiver circuitry configured to receive an optical signal having an embedded clock signal from an interrogator device, and convert the optical signal into an electrical signal comprising the embedded clock signal; clock extraction circuitry configured to extract the embedded clock signal from the electrical signal, and output the extracted clock signal as a clock signal for controlling clocking functions of the tag device; voltage regulator circuitry configured to generate a regulated supply voltage from the electrical signal, wherein the regulated supply voltage is utilized as a bias voltage for components of the tag device; and data transmitter circuitry configured to wirelessly transmit tag data to the interrogator device.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: Daniel J. Friedman, Duixian Liu, Mihai A. Sanduleanu
  • Publication number: 20160276727
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Application
    Filed: March 19, 2015
    Publication date: September 22, 2016
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Publication number: 20160276729
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Application
    Filed: June 25, 2015
    Publication date: September 22, 2016
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Publication number: 20160172761
    Abstract: Package structures are provided having antenna-in-packages that are integrated with semiconductor RFIC (radio frequency integrated circuit) chips to form compact integrated radio/wireless communications systems that operate in the millimeter wave (mmWave) frequency range with radiation in broadside and end-fire directions.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 16, 2016
    Inventors: Alberto V. Garcia, Xiaoxiong Gu, Duixian Liu
  • Publication number: 20160056544
    Abstract: Package structures are provided having antenna-in-packages that are integrated with semiconductor RFIC (radio frequency integrated circuit) chips to form compact integrated radio/wireless communications systems that operate in the millimeter wave (mmWave) frequency range with radiation in broadside and end-fire directions.
    Type: Application
    Filed: July 10, 2015
    Publication date: February 25, 2016
    Inventors: Alberto V. Garcia, Xiaoxiong Gu, Duixian Liu
  • Patent number: 9268017
    Abstract: Systems and method for near-field millimeter wave imaging are provided, in particular, near-field millimeter wave imaging systems and methods that enable sub-wavelength resolution imaging by scanning objects with sub-wavelength probe elements and capturing and measuring phase and intensity of reflected energy to generate images.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: February 23, 2016
    Assignee: International Business Machines Corporation
    Inventors: Aydin Babakhani, Duixian Liu, Scott K. Reynolds, Mihai A. Sanduleanu
  • Publication number: 20160049723
    Abstract: Antenna package structures are provided to implement wireless communications packages. For example, an antenna package includes a package carrier and a package cover. The package carrier includes an antenna ground plane and an antenna feed line. The package cover includes a planar lid having a planar antenna element formed on a first surface of the planar lid. The package cover is bonded to a first surface of the package carrier with the first surface of the planar lid facing the first surface of the package carrier, and with the planar antenna element aligned to the antenna ground plane and the antenna feed line of the package carrier, wherein the first surface of the planar lid is disposed at a distance from the first surface of the package carrier to provide an air space between the planar antenna element and the package carrier.
    Type: Application
    Filed: March 20, 2015
    Publication date: February 18, 2016
    Inventors: Christian Wilhelmus Baks, Xiaoxiong Gu, Duixian Liu, Alberto Valdes-Garcia
  • Patent number: 9203159
    Abstract: Systems, methods, devices and apparatuses directed to transceiver devices are disclosed. In accordance with one method, a first set of antenna positions in a first section of a set of sections of a circuit layout for the circuit package is selected. The method further includes selecting another set of antenna positions in another section of the circuit layout such that an arrangement of selected antenna positions of the other set is different from an arrangement of selected antenna positions of a previously selected set of antenna positions. The selecting another set of positions in another section is iterated until selections have been made for a total number of antennas. The selecting the other set is performed such that consecutive unselected positions in the other section do not exceed a predetermined number of positions. In addition, antenna elements are formed at the selected positions to fabricate the circuit package.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: December 1, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel J. Friedman, Xiaoxiong Gu, Duixian Liu, Arun S. Natarajan, Scott K. Reynolds, Alberto Valdes Garcia