Patents by Inventor Thomas S. Crabb

Thomas S. Crabb 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).

  • Self-aligned silicided base bipolar transistor and resistor and method of fabrication
    Patent number: 5045483
    Abstract: A bipolar transistor and resistor are provided. Fabrication includes using a high temperature oxide to form sidewall spacers for the transistor contacts and/or to overlay the resistor portion of the device. Deposition of the HTO is combined with dopant drive-in so that fewer total steps are required. The process is compatible with MOS technology so that the bipolar transistor and resistor can be formed on a substrate along with MOS devices.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: September 3, 1991
    Assignee: National Semiconductor Corporation
    Inventors: Bancherd DeLong, Christopher S. Blair, George E. Ganschow, Thomas S. Crabb