Patents by Inventor Roger Countryman

Roger Countryman 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).

  • Electrostatic discharge protection device
    Patent number: 5514892
    Abstract: An electrostatic discharge protection device (12) may be fabricated below a wirebond pad (20) to reduce the area impact upon the circuit (10) which incorporates the device. The electrostatic discharge protection device has one or more diodes (13) formed below the wirebond pad. The connections to and from the diodes are by a one or more sets of strips (46). The silicon dioxide formed in the gaps between the strips transfers the downward force exerted during wirebonding to the substrate with causing interlayer delamination.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: May 7, 1996
    Assignee: Motorola, Inc.
    Inventors: Roger Countryman, Gianfranco Gerosa, Horacio Mendez