Patents by Inventor Bich-Yen Nguyen

Bich-Yen Nguyen 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).

  • Integrated circuit trench cell
    Patent number: 4686552
    Abstract: A two-device trench cell having a transistor surrounded by a capacitor. This combined capacitor and transistor cell can be used as a memory cell. The capacitor is first fabricated into the walls of a trench leaving a narrowed trench into which a vertical metal-oxide-semiconductor field-effect-transistor (MOSFET) may be fabricated. One of the plates of the capacitor doubles as a source/drain layer of the transistor.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: August 11, 1987
    Assignee: Motorola, Inc.
    Inventors: Ker-Wen Teng, Bich-Yen Nguyen, Louis C. Parrillo