Patents by Inventor Don E. White

Don E. White 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).

  • Ceramic circuit board mounted in housing and method of fabrication thereof
    Patent number: 3934074
    Abstract: Disclosed is an electrical circuit board structure incorporating a ceramic substrate wafer and metallic mounting means bonded to the substrate wafer for securing the structure to a housing. The metallic portion of the structure protects the ceramic wafer from mechanical stresses transmitted through the housing by providing structural integrity and dynamic isolation. Selection of such a metallic material having its coefficient of thermal expansion similar to that of the substrate material prevents the creation of thermal stresses between the ceramic and the metal portion of the structure.The disclosed method comprises rigidly securing the ceramic substrate circuit board to the metallic member in such a way that the latter may be attached to the housing without stressing the ceramic material.
    Type: Grant
    Filed: April 22, 1974
    Date of Patent: January 20, 1976
    Assignee: TRW Inc.
    Inventors: Leon G. Evelove, John S. Leone, Don E. White