Patents by Inventor Frank A. Shott

Frank A. Shott 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).

  • Method of making conductive via holes in printed circuit boards
    Patent number: 4170819
    Abstract: A printed circuit board is provided with via holes and these holes are provided with a base coat of conductive metal, a coating of insulating material deposited on said base coat, and a second coat of conducting metal deposited on said insulating material. The metal coatings are interconnected to one or more surfaces of the board and the base coat is connected to at least one internal power, ground or signal plane. This via hole construction facilitates the making of engineering changes by simply deleting the interconnection between the metal coatings at the board surface and subsequently connecting the desired point to an alternate point on the circuit board.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: October 16, 1979
    Assignee: International Business Machines Corporation
    Inventors: Anthony E. Peter, Frank A. Shott, Robert L. Weiss