Patents by Inventor David L. Addie

David L. Addie 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).

  • Double pinned sensor utilizing a tensile film
    Patent number: 5241864
    Abstract: A double pinned micromachined sensor (11) which utilizes a laminated film (27) having overall tensile strength formed on top of a silicon substrate (16). The laminated film (27) comprises a layer of silicon nitride (18) encapsulated by two layers of polysilicon (19, 21), the silicon nitride (18) providing overall tension for the laminated film. The laminated film (27) is supported above the silicon substrate by support posts (17) and is selectively etched to form a sensor (11, 13).
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: September 7, 1993
    Assignee: Motorola, Inc.
    Inventors: David L. Addie, Ronald J. Gutteridge, Ljubisa Ristic
  • Button rectifier package for non-planar die
    Patent number: 4498096
    Abstract: An axial lead semiconductor device package is provided for use with non-planar semiconductor die. By using solders of predetermined strength, wetting and flow characteristics, melting temperature, shape, area, and thickness, reliable attachment of non-planar die to planar mounting surfaces is achieved.
    Type: Grant
    Filed: September 12, 1983
    Date of Patent: February 5, 1985
    Assignee: Motorola, Inc.
    Inventors: David L. Addie, Kenneth A. Ellsworth