Patents by Inventor Robert W. Dail

Robert W. Dail 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).

  • Vertical PNP bipolar transistor and its method of fabrication
    Patent number: 6359317
    Abstract: A bipolar vertical PNP transistor compatible with CMOS processing and useful in a complementary BiMOS structure is characterized in that it is devoid of an epitaxial layer and employs a high-energy implanted phosphorus layer to provide N-type substrate isolation.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: March 19, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventors: Michael S. Carroll, Yih-Feng Chyan, Samir Chaudhry, Tony G. Ivanov, Robert W. Dail, Alan S. Chen