Patents by Inventor Richard Norman Campbell

Richard Norman Campbell 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).

  • Semiconductor element incorporating a resistive device
    Patent number: 5670820
    Abstract: In a semiconductor polycide resistive element having a first region of polysilicon of one conductivity type and second regions of polysilicon of opposite conductivity type, with silicide overlying the polysilicon but not the first region, the edges of the silicide are spaced apart from the boundaries between the opposite conductivity types.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: September 23, 1997
    Assignee: Inmos Limited
    Inventors: Richard Norman Campbell, Michael Kevin Thompson, Elizabeth Ann Smith