Patents by Inventor Liang-Hua Lin

Liang-Hua Lin 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).

  • Photo sensor and method of forming the same
    Publication number: 20040002177
    Abstract: A method of forming a photo sensor in a photo diode is provided. The photo diode is formed in a semiconductor wafer. The semiconductor wafer includes a substrate with a first conductive type, and an insulating layer surrounding the photo sensor. A first ion implantation process, utilizing dopants with a second conductive type, is performed to form a plurality of first doped regions in the surface of the photo sensor. A second ion implantation process, utilizing dopants with the second conductive type, is performed to form a second doped region in the surface of the photo sensor. The second doped region is overlapped with a portion of each of the first doped regions.
    Type: Application
    Filed: October 1, 2002
    Publication date: January 1, 2004
    Inventors: Liang-Hua Lin, Anchor Chen
  • Photo sensor in a photo diode on a semiconductor wafer
    Patent number: 6566722
    Abstract: A method of forming a photo sensor in a photo diode is provided. The photo diode is formed in a semiconductor wafer. The semiconductor wafer includes a substrate with a first conductive type, and an insulating layer surrounding the photo sensor. A first ion implantation process, utilizing dopants with a second conductive type, is performed to form a plurality of first doped regions in the surface of the photo sensor. A second ion implantation process, utilizing dopants with the second conductive type, is performed to form a second doped region in the surface of the photo sensor. The second doped region is overlapped with a portion of each of the first doped regions.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: May 20, 2003
    Assignee: United Microelectronics Corp.
    Inventors: Liang-Hua Lin, Anchor Chen