Patents by Inventor Sam Ziqun Zhao

Sam Ziqun Zhao 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: 20130082800
    Abstract: Methods and apparatus are disclosed for wirelessly communicating among integrated circuits and/or functional modules within the integrated circuits. A semiconductor device fabrication operation uses a predetermined sequence of photographic and/or chemical processing steps to form one or more functional modules onto a semiconductor substrate. The functional modules are coupled to an integrated waveguide that is formed onto the semiconductor substrate and/or attached thereto to form an integrated circuit. The functional modules communicate with each other as well as to other integrated circuits using a multiple access transmission scheme via the integrated waveguide. One or more integrated circuits may be coupled to an integrated circuit carrier to form Multichip Module. The Multichip Module may be coupled to a semiconductor package to form a packaged integrated circuit.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Ahmadreza Rofougaran, Arya Reza Behzad, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers
  • Publication number: 20130078915
    Abstract: Embodiments of an interposer package structure are provided herein. Embodiments include a substrate having first and second opposing surfaces. An IC die electrically coupled to the first surface of the substrate. A plurality of contact members coupled to the first surface of the substrate. An interposer having a plurality of contact elements located on a first surface. Each conductive element coupled to a respective one of the plurality of contact members.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 28, 2013
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Rezaur Rahman Khan
  • Patent number: 8351855
    Abstract: Disclosed herein are systems, apparatuses, and methods for providing a proximity coupling without Ohmic contact. Such a system includes a plurality of wireless-enabled components (WECs) that are wirelessly coupled to each other. Each WEC includes a metal-based element, a substrate, and a semiconductor layer that separates the metal-based element from the substrate. A signal is configured to be transmitted via a proximity coupling (e.g., a magnetic coupling, an electric coupling, and/or an electromagnetic coupling) between the metal-based element and the substrate without an Ohmic contact between the metal-based element and the substrate. In an example, a first subset of the plurality of the WECs is co-located on a first chip, and a second subset of the plurality of the WECs is co-located on a second chip. The first chip and the second chip may be located in a single device or in separate devices.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: January 8, 2013
    Assignee: Broadcom Corporation
    Inventors: Jesus Alfonso Castaneda, Arya Reza Behzad, Michael Boers, Ahmadreza Reza Rofougaran, Sam Ziqun Zhao
  • Publication number: 20130000968
    Abstract: A method of manufacturing a printed circuit board is disclosed. A conductive metal layer is formed on a first surface of a dielectric substrate. One or more vias are formed through the substrate. A conductive metal layer is formed on the first surface of the substrate and is patterned to form conductive traces on the first surface of the substrate. A plating mask is formed on the second surface of the substrate. One or more openings are formed in the plating mask to correspond to the location of the via(s). Conductive metal is deposited in the via(s) sufficient to substantially fill the via(s) and make contact with the conductive metal layer on the first surface and substantially to the level of the plating mask. The plating mask is removed from the substrate such that one or more conductive posts extend outwardly from the second surface of the substrate.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan, Raymond Kwok Cheung Tsang
  • Publication number: 20120314367
    Abstract: An apparatus for cooling a semiconductor element is provided. The apparatus can include an electron emitter configured to emit electrons such that at least some of the emitted electrons become attached to air particulates and an air accelerator configured to generate an electric field that accelerates the air particulates toward the air accelerator to create an air flow over at least a portion of the semiconductor element. The air flow carries heat away from the at least a portion of the semiconductor element.
    Type: Application
    Filed: June 13, 2011
    Publication date: December 13, 2012
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Milind S. BHAGAVAT
  • Patent number: 8310067
    Abstract: A package is provided. The package includes a substrate having first and second surfaces, a stiffener coupled to the first surface of the substrate, and a thermal connector coupled to the second surface of the substrate that is configured to be coupled to a printed circuit board.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: November 13, 2012
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Reza-ur Rahman Khan
  • Publication number: 20120223429
    Abstract: An integrated circuit (IC) package has a package member having a first surface and a second surface opposite the first surface. A first plurality of contact members is physically and electrically fixed to the second surface. An interposer substrate having a second plurality of contact members on one surface thereof which make physical and electrical contact with respective ones of the first plurality of contact members. The interposer substrate is configured to have at least one circuit member mounted to a second surface thereof opposite the one surface thereof.
    Type: Application
    Filed: June 30, 2011
    Publication date: September 6, 2012
    Applicant: Broadcom Corporation
    Inventors: Rezaur Rahman KHAN, Sam Ziqun Zhao
  • Publication number: 20120225522
    Abstract: A method of manufacturing an integrated circuit (IC) package is provided. The method includes stacking an interposer substrate and a device structure, the interposer substrate having a first plurality of contact members formed on a first surface of the interposer substrate and the device structure having a second plurality of contact members that are exposed at a surface of the device structure, and laminating the interposer substrate and the device structure such that the first plurality of contact members are physically and electrically coupled to the second plurality of contact members. The interposer substrate is configured such that a circuit member mounted to a second surface of the interposer substrate is electrically coupled to the second plurality of contact members.
    Type: Application
    Filed: April 26, 2012
    Publication date: September 6, 2012
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Rezaur Rahman KHAN
  • Publication number: 20120212244
    Abstract: A test board is provided. The test board includes a test module configured to accommodate an integrated circuit (IC) device and first wirelessly enabled functional blocks located in the test module and configured to communicate with second wirelessly enabled functional blocks of the IC device.
    Type: Application
    Filed: May 31, 2011
    Publication date: August 23, 2012
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Ahmadreza Rofougaran, Arya Behzad, Jesus Castaneda, Michael Boers
  • Patent number: 8213180
    Abstract: A printed circuit board (PCB) assembly is provided that includes a PCB, an integrated circuit package, an electromagnetic interference (EMI) shield ring, and a heat sink lid. A first surface of the package is mounted to a first surface of the PCB. The EMI shield ring is mounted to the first surface of the PCB in a ring around the package. A first surface of the heat sink lid includes a recessed region and first and second supporting portions separated by the recessed region. The heat sink lid is mated with the EMI shield ring such that the package is positioned in an enclosure formed by the EMI shield ring and the recessed region of the heat sink lid. A second surface of the package may interface with a surface of the recessed region.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 3, 2012
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Calvin Wong
  • Publication number: 20120126396
    Abstract: Methods and apparatuses for a die down device with a thermal connector are provided. In an embodiment, an integrated circuit (IC) device includes an IC die having opposing first and second surfaces, a thermal connector coupled to the first surface of the IC die, and a substrate. The second surface of the IC die is coupled to the substrate. The thermal connector is configured to be coupled to a circuit board.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 24, 2012
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8183687
    Abstract: Methods and apparatus for improved electrical, mechanical and thermal performance of stacked IC packages are described. An IC package comprises a substrate, a first die, a second die, and an interposer with an opening in a first surface of the interposer configured to accommodate the first die. The first IC die is attached a first surface of the substrate. The interposer is mounted on the first surface of the substrate such that the first IC die is placed within the opening in the interposer. The second die is mounted on a second surface of the interposer. Wire bonds couple bond pads on the first surfaces of IC die are coupled to the first surface of the substrate. A mold compound encapsulates the first IC die, the second IC die, the interposer and the wire bonds.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: May 22, 2012
    Assignee: Broadcom Corporation
    Inventors: Rezaur Rahman Khan, Sam Ziqun Zhao
  • Patent number: 8183680
    Abstract: Methods and apparatus for improved thermal performance and electromagnetic interference (EMI) shielding in integrated circuit (IC) packages are described. A die-up or die-down package includes an IC die, a die attach pad, a heat spreader cap coupled to the die attach pad defining a cavity, and one or more peripheral rows of leads surrounding the die attach pad. The leads do not protrude substantially from the footprint of the encasing structure. The die attach pad and the heat spreader cap defines an encasing structure that substantially encloses the IC die, and shields EMI emanating from and radiating towards the IC die. The encasing structure also dissipates heat generated by the IC die during operation.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: May 22, 2012
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8169067
    Abstract: Methods and apparatuses for improved thermal, electrical and/or mechanical performance in integrated circuit (IC) packages are described. An IC circuit package comprises a substrate having a central opening. An IC die, resides within the opening in the substrate. Wirebonds couples a plurality of bond pads on a top surface of the IC die to a plurality of bond fingers on a top surface the substrate. An encapsulating material encapsulates at least the IC die and the wirebonds such that at least a bottom surface of the IC die is left exposed. The encapsulating material suspends the die such that at least a portion of the die is held within the opening in the substrate.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: May 1, 2012
    Assignee: Broadcom Corporation
    Inventors: Edward Law, Sam Ziqun Zhao, Rezaur Rahman Khan
  • Publication number: 20120086114
    Abstract: An integrated circuit (IC) device arrangement includes a substrate, an IC die coupled to the substrate, an antenna coupled to the IC die, and a first wirelessly enabled functional block coupled to the IC die. The wirelessly enabled functional block is configured to wirelessly communicate with a second wirelessly enabled functional block coupled to the substrate. The antenna is configured to communicate with another antenna coupled to another device.
    Type: Application
    Filed: February 7, 2011
    Publication date: April 12, 2012
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Ahmadreza Rofougaran, Arya Behzad, Jesus Castaneda, Michael Boers
  • Patent number: 8102027
    Abstract: Systems and methods for preventing damage to a unit with preventive structures are presented. In an embodiment, a unit of a collection of units includes a functional area and a preventive structure configured to prevent cracks from propagating into the functional area.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: January 24, 2012
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Chonghua Zhong, Rezaur Rahman Khan
  • Publication number: 20110316139
    Abstract: An integrated circuit (IC) device is provided. The IC device includes a substrate, an IC die coupled to the substrate, and a first wirelessly enabled functional block formed on the IC die. The first wirelessly enabled functional block is configured to wirelessly communicate with a second wirelessly enabled functional block formed on the substrate.
    Type: Application
    Filed: February 7, 2011
    Publication date: December 29, 2011
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Ahmadreza ROFOUGARAN, Arya BEHZAD, Jesus CASTANEDA, Michael BOERS
  • Publication number: 20110318885
    Abstract: In one embodiment, a method for assembling a ball grid array (BGA) package is provided. The method includes providing a stiffener that has opposing first and second surfaces, wherein the first surface is capable of mounting an integrated circuit (IC) die in a central area and forming a pattern in at least a portion of the first surface to enhance the adhesiveness of an encapsulant material to the first surface.
    Type: Application
    Filed: September 2, 2011
    Publication date: December 29, 2011
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Reaz-ur Rahman Khan, Edward Law, Marc Papageorge
  • Publication number: 20110309852
    Abstract: Methods and apparatus are disclosed to simultaneously, wirelessly test semiconductor components formed on a semiconductor wafer. The semiconductor components transmit respective outcomes of a self-contained testing operation to wireless automatic test equipment via a common communication channel. Multiple receiving antennas observe the outcomes from multiple directions in three dimensional space. The wireless automatic test equipment determines whether one or more of the semiconductor components operate as expected and, optionally, may use properties of the three dimensional space to determine a location of one or more of the semiconductor components. The wireless testing equipment may additionally determine performance of the semiconductor components by detecting infrared energy emitted, transmitted, and/or reflected by the semiconductor wafer before, during, and/or after a self-contained testing operation.
    Type: Application
    Filed: February 17, 2011
    Publication date: December 22, 2011
    Applicant: Broadcom Corporation
    Inventors: Arya Reza Behzad, Ahmadreza Rofougaran, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers
  • Publication number: 20110313711
    Abstract: Methods and apparatus are disclosed to simultaneously, wirelessly test semiconductor components formed on a semiconductor wafer. The semiconductor components transmit respective outcomes of a self-contained testing operation to wireless automatic test equipment via a common communication channel. Multiple receiving antennas observe the outcomes from multiple directions in three dimensional space. The wireless automatic test equipment determines whether one or more of the semiconductor components operate as expected and, optionally, may use properties of the three dimensional space to determine a location of one or more of the semiconductor components. The wireless testing equipment may additionally determine performance of the semiconductor components by detecting infrared energy emitted, transmitted, and/or reflected by the semiconductor wafer before, during, and/or after a self-contained testing operation.
    Type: Application
    Filed: February 11, 2011
    Publication date: December 22, 2011
    Applicant: Broadcom Corporation
    Inventors: Arya Reza BEHZAD, Ahmadreza Rofougaran, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers