Patents by Inventor Weidong Tian

Weidong Tian 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: 20040178438
    Abstract: The present invention provides a semiconductor device 200, a method of manufacture therefor and an integrated circuit including the same. In one embodiment of the invention, the semiconductor device 200 includes a floating gate 230 located over a semiconductor substrate 210, wherein the floating gate 230 has a metal control gate 250 located thereover. The semiconductor device 200, in the same embodiment, further includes a dielectric layer 240 located between the floating gate 230 and the metal control gate 250, the dielectric layer 240 having a gettering material located therein.
    Type: Application
    Filed: March 12, 2003
    Publication date: September 16, 2004
    Applicant: Texas Instruments Incorporated
    Inventors: Jozef Mitros, Weidong Tian, Pinghai Hao, Victor Ivanov
  • Patent number: 6706635
    Abstract: The present invention relates to a method for forming an anlog capacitor on a semiconductor substrate. The method comprises forming a field oxide over a portion of the substrate, and forming a polysilicon layer over the field oxide layer, and subsequently forming a silicide over the polysilicon layer. A first interlayer dielectric layer is formed over the substrate, and a capacitor masking pattern is formed. The first interlayer dielectric is etched using the capacitor masking pattern as a mask and the silicide layer as an etch stop, and a thin dielectric is formed over the substrate. A contact masking pattern is formed over the substrate, and a subsequent etch is performed on the thin dielectric and the first interlayer dielectric using the silicide and substrate as an etch stop. A metal layer is deposited over the substrate, and is subsequently planarized, thereby defining an analog capacitor.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: March 16, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Imran M. Khan, William E. Nehrer, James Todd, Weidong Tian, Louis N. Hutter
  • Publication number: 20030228764
    Abstract: The present invention relates to a method for forming an analog capacitor on a semiconductor substrate. The method comprises forming a field oxide over a portion of the substrate, and forming a polysilicon layer over the field oxide layer, and subsequently forming a silicide over the polysilicon layer. A first interlayer dielectric layer is formed over the substrate, and a capacitor masking pattern is formed. The first interlayer dielectric is etched using the capacitor masking pattern as a mask and the silicide layer as an etch stop, and a thin dielectric is formed over the substrate. A contact masking pattern is formed over the substrate, and a subsequent etch is performed on the thin dielectric and the first interlayer dielectric using the silicide and substrate as an etch stop. A metal layer is deposited over the substrate, and is subsequently planarized, thereby defining an analog capacitor.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Inventors: Imran M. Khan, William E. Nehrer, James Todd, Weidong Tian, Louis N. Hutter