Patents by Inventor Xinfu Liu

Xinfu 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: 20170084736
    Abstract: High voltage devices and methods for forming a high voltage device are disclosed. The high voltage device includes a substrate prepared with a device isolation region. The device isolation region defines a device region. The device region includes at least first and second source/drain regions and a gate region defined thereon. A device well is disposed in the device region. The device well encompasses the at least first and second source/drain regions. A primary gate and at least one secondary gate adjacent to the primary gate are disposed in the gate region. The at least first and second source/drain regions are displaced from first and second sides of the primary gate.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 23, 2017
    Inventors: Eng Huat TOH, Xinfu LIU, Xueming Dexter TAN
  • Patent number: 9287497
    Abstract: Integrated circuits with a Hall effect sensor and methods for fabricating such integrated circuits are provided. The method includes forming a buried plate layer within a substrate and overlying a substrate base, where the buried plate layer is doped with an ā€œNā€ type dopant. A cover insulating layer if formed overlying the buried plate layer, and a plurality of contact points are formed adjacent to the cover insulating layer.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: March 15, 2016
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Eng Huat Toh, Xinfu Liu
  • Publication number: 20150357561
    Abstract: Integrated circuits with a Hall effect sensor and methods for fabricating such integrated circuits are provided. The method includes forming a buried plate layer within a substrate and overlying a substrate base, where the buried plate layer is doped with an ā€œNā€ type dopant. A cover insulating layer if formed overlying the buried plate layer, and a plurality of contact points are formed adjacent to the cover insulating layer.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 10, 2015
    Inventors: Eng Huat Toh, Xinfu Liu