Patents by Inventor Stanley H. Watanabe

Stanley H. Watanabe 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).

  • Aluminum germanium ohmic contacts to gallium arsenide
    Patent number: 4994892
    Abstract: Ohmic contacts are attached to n-type Gallium Arsenide with an alloy of Aluminum-Germanium. The contact is prepared by depositing by evaporation a sequence of 400 Angstroms of Germanium, 300 Angstroms of Nickel, and 2000 Angstroms of Aluminum and subsequent alloying.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: February 19, 1991
    Assignee: McDonnell Douglas Corporation
    Inventors: Rainer Zuleeg, Stanley H. Watanabe, John M. Stephens