Patents by Inventor Robert H. Grangroth

Robert H. Grangroth 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).

  • Patent number: 4649339
    Abstract: Disclosed is an interface for testing an integrated circuit device through a plurality of contacts on an exposed surface of the device. The interface comprises a flexible sheeting having first and second opposing surfaces. A plurality of contacts are disposed on the first surface of the sheet in a pattern designed to mate with a plurality of contacts on an integrated circuit device. A plurality of thin film conductors are patterned on the sheet, the conductors each being connected to a contact on the sheet and being adapted for connection to a circuit for testing the device. The interface comprises apparatus for preforming into a generally domed shape a portion of the sheet which includes a plurality of the contacts and apparatus for flexing the flexible sheet so that the contacts on both the sheet and the device may be brought into intimate contact.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: March 10, 1987
    Assignee: Honeywell Inc.
    Inventors: Robert H. Grangroth, Jerald M. Loy
  • Patent number: 4011143
    Abstract: To minimize the deposition of materials in portions of a microcircuit structure beyond those intended to be deposited upon through openings in a mask, a special mask holding arrangement is used. This arrangement can be used with several deposition methods which include sputtering and evaporation as well as supplementing these with plating techniques.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: March 8, 1977
    Assignee: Honeywell Inc.
    Inventors: Louis A. Del Monte, Robert H. Grangroth