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).

  • Patent number: 8928128
    Abstract: There are disclosed herein various implementations of a shield interposer situated between a top active die and a bottom active die for shielding the active dies from electromagnetic noise. One implementation includes an interposer dielectric layer, a through-silicon via (TSV) within the interposer dielectric layer, and an electromagnetic shield. The TSV connects the electromagnetic shield to a first fixed potential. The electromagnetic shield may include a grid of conductive layers laterally extending across the shield interposer. The shield interposer may also include another electromagnetic shield connected to another fixed potential.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: January 6, 2015
    Assignee: Broadcom Corporation
    Inventors: Sampath K. V. Karikalan, Kevin Kunzhong Hu, Sam Ziqun Zhao, Rezaur Rahman Khan, Pieter Vorenkamp, Xiangdong Chen
  • Patent number: 8923765
    Abstract: Disclosed herein are systems, apparatuses, and methods for establishing wireless communications among a plurality of wireless-enabled components (WECs), and applications thereof. Such a system includes a plurality of WECs, each configured to transmit and receive over a wireless bus. The wireless bus includes (i) a first channel to identify proximally located WECs and (ii) a second channel to support communications among the proximally located WECs. The plurality of WECs may be located on a single chip, on multiple chips of a single device, or on multiple chips across multiple devices.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: December 30, 2014
    Assignee: Broadcom Corporation
    Inventors: Arya Reza Behzad, Michael Boers, Jesus Alfonso Castaneda, Ahmadreza (Reza) Rofougaran, Sam Ziqun Zhao
  • Publication number: 20140374897
    Abstract: In an embodiment, a thermal interface material (TIM) is provided. The TIM comprises first and a second layers of a first transition metal, and a third layer including a plurality of carbon nanotubes supported in a flexible polymer matrix and a second transition metal coupled to sidewalls of carbon nanotubes. The first and second metal layers are in contact with first and second ends of carbon nanotube. The TIM further comprises fourth and fifth layers of an alloy material coupled to the first and second metal layers, respectively. The carbon nanotube based TIM including the layers with transition metal allow improved heat transfer from an integrated circuit die to a heat spreader.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 25, 2014
    Inventors: Sam Ziqun ZHAO, Arpit Mittal, Rezaur Rahman Khan
  • Publication number: 20140367854
    Abstract: Various examples are provided for interconnection structures for molded IC packages. In one example, among others, an IC package includes a substrate and an interposer. A plurality of conductive elements provide physical and electrical contact between a surface of the substrate and a surface of the interposer. A standoff element disposed between the surfaces of the substrate and interposer provides a minimum spacing between the surfaces of the substrate and interposer. In some implementations, a standoff element is disposed between an IC die disposed on the surface of the substrate and the surface of the interposer. In another example, a method includes coupling conductive elements to a surface of an interposer, attaching a standoff element, coupling the conductive elements to a surface of a substrate, and forming an embedded layer between the interposer and substrate. The standoff element defines a minimum gap between the interposer and the substrate.
    Type: Application
    Filed: June 26, 2013
    Publication date: December 18, 2014
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8901945
    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: Grant
    Filed: May 31, 2011
    Date of Patent: December 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Ahmadreza Rofougaran, Arya Behzad, Jesus Castaneda, Michael Boers
  • Patent number: 8884417
    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: Grant
    Filed: September 29, 2011
    Date of Patent: November 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Jesus Alfonso Castaneda, Arya Reza Behzad, Ahmadreza Rofougaran, Sam Ziqun Zhao, Michael Boers
  • Patent number: 8884428
    Abstract: Embodiments described herein provide enhanced integrated circuit (IC) devices. In an embodiment, an IC device includes a substrate, an IC die coupled to a surface of the substrate, a first wirelessly enabled functional block located, on the IC die, the first wirelessly enabled functional block being configured to wirelessly communicate with a second wirelessly enabled functional block located on the substrate, and a ground ring configured to provide electromagnetic shielding for the first and second wirelessly enabled functional blocks.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: November 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Michael Boers, Ahmadreza Rofougaran, Arya Behzad, Jesus Castaneda
  • Patent number: 8872321
    Abstract: One implementation of present disclosure includes a semiconductor package stack. The semiconductor package stack includes an upper package coupled to a lower package by a plurality of solder balls. The semiconductor package stack also includes a lower active die situated in a lower package substrate in the lower package. The lower active die is thermally coupled to a heat spreader in the upper package by a thermal interface material. An upper active die is situated in an upper package substrate in the upper package, the upper package substrate being situated over the heat spreader. The thermal interface material can include an array of aligned carbon nanotubes within a filler material. The heat spreader can include at least one layer of metal or metal alloy. Furthermore, the heat spreader can be connected to ground or a DC voltage source. The plurality of solder balls can be situated under the heat spreader.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: October 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan, Kevin Kunzhong Hu, Sampath K. V. Karikalan, Pieter Vorenkamp, Xiangdong Chen
  • Patent number: 8866502
    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: Grant
    Filed: February 17, 2011
    Date of Patent: October 21, 2014
    Assignee: Broadcom Corporation
    Inventors: Arya Reza Behzad, Ahmadreza Rofougaran, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers
  • Publication number: 20140291818
    Abstract: In embodiments described herein, an integrated circuit (IC) package is provided. The IC package can include a substrate having opposing first and second surfaces, an IC die coupled to the first surface of the substrate, a first plurality of conductive elements coupled to conductive regions on the first surface of the substrate, an interposer having opposing first and second surfaces, and a second plurality of conductive elements coupled to conductive regions on the first surface of the interposer. The second surface of the substrate is configured be coupled to at least one device. Each of the first plurality of conductive elements is electrically coupled to a respective one of the second plurality of conductive elements. The interposer is configured to be attached to a printed circuit board (PCB).
    Type: Application
    Filed: March 26, 2013
    Publication date: October 2, 2014
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Rezaur Rahman Khan
  • Patent number: 8829656
    Abstract: The present application discloses various implementations of a semiconductor package including an organic substrate and one or more interposers having through-semiconductor vias (TSVs). Such a semiconductor package may include a contiguous organic substrate having a lower substrate segment including first and second pluralities of lower interconnect pads, the second plurality of lower interconnect pads being disposed in an opening of the lower substrate segment. The contiguous organic substrate may also include an upper substrate segment having an upper width and including first and second pluralities of upper interconnect pads. In addition, the semiconductor package may include at least one interposer having TSVs for electrically connecting the first and second pluralities of lower interconnect pads to the first and second pluralities of upper interconnect pads. The interposer has an interposer width less than the upper width of the upper substrate segment.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8829654
    Abstract: The present application discloses various implementations of a semiconductor package including an organic substrate and one or more interposers having through-semiconductor vias (TSVs). Such a semiconductor package may include a contiguous organic substrate having a lower substrate segment including first and second pluralities of lower interconnect pads, the second plurality of lower interconnect pads being disposed in an opening of the lower substrate segment. The contiguous organic substrate may also include an upper substrate segment having an upper width and including first and second pluralities of upper interconnect pads. In addition, the semiconductor package may include at least one interposer having TSVs for electrically connecting the first and second pluralities of lower interconnect pads to the first and second pluralities of upper interconnect pads. The interposer has an interposer width less than the upper width of the upper substrate segment.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8829655
    Abstract: The present application discloses various implementations of a semiconductor package including an organic substrate and one or more interposers having through-semiconductor vias (TSVs). Such a semiconductor package may include a contiguous organic substrate having a lower substrate segment including first and second pluralities of lower interconnect pads, the second plurality of lower interconnect pads being disposed in an opening of the lower substrate segment. The contiguous organic substrate may also include an upper substrate segment having an upper width and including first and second pluralities of upper interconnect pads. In addition, the semiconductor package may include at least one interposer having TSVs for electrically connecting the first and second pluralities of lower interconnect pads to the first and second pluralities of upper interconnect pads. The interposer has an interposer width less than the upper width of the upper substrate segment.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8823144
    Abstract: An interface substrate is disclosed which includes an interposer having through-semiconductor vias. An upper and a lower organic substrate are further built around the interposer. The disclosed interface substrate enables the continued use of low cost and widely deployed organic substrates for semiconductor packages while providing several advantages. The separation of the organic substrate into upper and lower substrates enables the cost effective matching of fabrication equipment. By providing an opening in one of the organic substrates, one or more semiconductor dies may be attached to exposed interconnect pads coupled to through-semiconductor vias of the interposer, enabling the use of flip chips with high-density microbump arrays and the accommodation of dies with varied bump pitches. By providing the opening specifically in the upper organic substrate, a package-on-package structure with optimized height may also be provided.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Rezaur Rahman Khan, Sam Ziqun Zhao
  • Patent number: 8817472
    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: Grant
    Filed: June 13, 2011
    Date of Patent: August 26, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Milind S. Bhagavat
  • Publication number: 20140235183
    Abstract: Embodiments of provide an integrated circuit (IC) device. The IC device can 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, and an interposer. The interposer can include a plurality of contact elements located on a first surface thereof, each conductive element being coupled to a respective one of the plurality of contact members, and an antenna formed using a conductive layer of the interposer, the antenna being electrically coupled to the IC die through at least one of the plurality of contact elements and at least one of the plurality of contact members.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun ZHAO, Rezaur Rahman Khan
  • Publication number: 20140210083
    Abstract: In one embodiment, a device package is provided. The device package can include a substrate having first and second opposing surfaces, an opening being formed through the first and second surfaces of the substrate; a stiffener coupled to the first surface of the substrate, the stiffener having an extending portion that extends into the opening of the substrate; and an integrated circuit (IC) die coupled to the extending portion of the stiffener, the IC die being electrically coupled to the substrate.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Reza-ur Rahman Khan, Edward Law, Marc Papageorge
  • Patent number: 8791533
    Abstract: There are disclosed herein various implementations of semiconductor packages having an interposer configured for magnetic signaling. One exemplary implementation includes a die transmit pad in an active die for transmitting a magnetic signal corresponding to a die electrical signal produced by the active die, and an interposer magnetic tunnel junction (MTJ) pad in the interposer for receiving the magnetic signal. A sensing circuit is coupled to the interposer MTJ pad for producing a receive electrical signal corresponding to the magnetic signal. In one implementation, the sensing circuit is configured to sense a resistance of the interposer MTJ pad and to produce the receive electrical signal according to the sensed resistance.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: July 29, 2014
    Assignee: Broadcom Corporation
    Inventors: Xiangdong Chen, Sam Ziqun Zhao, Kevin Kunzhong Hu, Sampath K. V. Karikalan, Rezaur Rahman Khan, Pieter Vorenkamp
  • Patent number: 8749072
    Abstract: There are disclosed herein various implementations of semiconductor packages having a selectively conductive film interposer. In one such implementation, a semiconductor package includes a first active die having a first plurality of electrical connectors on a top surface of the first active die, a selectively conductive film interposer situated over the first active die, and a second active die having a second plurality of electrical connectors on a bottom surface of the second active die. The selectively conductive film interposer may be configured to serve as an interposer and to selectively couple at least one of the first plurality of electrical connectors to at least one of the second plurality of electrical connectors.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: June 10, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Kevin Kunzhong Hu, Sampath K. V. Karikalan, Rezaur Rahman Khan, Pieter Vorenkamp, Xiangdong Chen
  • Publication number: 20140151900
    Abstract: An exemplary implementation of the present disclosure includes a stacked package having a top die from a top reconstituted wafer situated over a bottom die from a bottom reconstituted wafer. The top die and the bottom die are insulated from one another by an insulation arrangement. The top die and the bottom die are also interconnected through the insulation arrangement. The insulation arrangement can include a top molding compound that flanks the top die and a bottom molding compound that flanks the bottom die. The top die and the bottom die can be interconnected through at least the top molding compound. Furthermore, the top die and the bottom die can be interconnected through a conductive via that extends within the insulation arrangement.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Kevin Kunzhong HU, Sam Ziqun Zhao, Rezaur Rahman Khan, Pieter Vorenkamp, Sampath K.V. Karikalan, Xiangdong Chen