Patents by Inventor Zhang Xiao PING

Zhang Xiao PING 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: 20180122729
    Abstract: A cavity package is set forth along with a method of manufacturing thereof. According to one embodiment, the method comprises attaching a metal heat sink to a leadframe using an intermediate structure that is thermally conductive and electrically insulating; molding a plastic body around the heat sink and exposed leads of the leadframe to form a cavity, with partially and selectively exposed lead top surfaces, heat sink top surface, and heat sink bottom surface; attaching a semiconductor device die within cavity on to the exposed top surface of the heat sink using a thermal conductive material; wire bonding respective wire bond pads of the semiconductor device die to the exposed lead top surfaces and to the heat sink for grounding; and attaching a lid to the plastic molded body to protect the wire bonded device within cavity.
    Type: Application
    Filed: January 8, 2018
    Publication date: May 3, 2018
    Inventors: Zhang Xiao PING, Sin Chi WAI
  • Patent number: 9865528
    Abstract: A cavity package is set forth along with a method of manufacturing thereof. According to one embodiment, the method comprises attaching a metal heat sink to a leadframe using an intermediate structure that is thermally conductive and electrically insulating; molding a plastic body around the heat sink and exposed leads of the leadframe to form a cavity, with partially and selectively exposed lead top surfaces, heat sink top surface, and heat sink bottom surface; attaching a semiconductor device die within cavity on to the exposed top surface of the heat sink using a thermal conductive material; wire bonding respective wire bond pads of the semiconductor device die to the exposed lead top surfaces and to the heat sink for grounding; and attaching a lid to the plastic molded body to protect the wire bonded device within cavity.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: January 9, 2018
    Assignee: UBOTIC COMPANY LIMITED
    Inventors: Zhang Xiao Ping, Sin Chi Wai
  • Publication number: 20170170102
    Abstract: A cavity package is set forth along with a method of manufacturing thereof. According to one embodiment, the method comprises attaching a metal heat sink to a leadframe using an intermediate structure that is thermally conductive and electrically insulating; molding a plastic body around the heat sink and exposed leads of the leadframe to form a cavity, with partially and selectively exposed lead top surfaces, heat sink top surface, and heat sink bottom surface; attaching a semiconductor device die within cavity on to the exposed top surface of the heat sink using a thermal conductive material; wire bonding respective wire bond pads of the semiconductor device die to the exposed lead top surfaces and to the heat sink for grounding; and attaching a lid to the plastic molded body to protect the wire bonded device within cavity.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 15, 2017
    Inventors: Zhang Xiao PING, Sin Chi WAI