Patents by Inventor Karl A. Stackhouse

Karl A. Stackhouse 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).

  • Composite material for mounting electronic devices
    Patent number: 4320412
    Abstract: A lead frame for mounting semiconductor chips includes laminated chip-mounting portions. These portions are comprised of a high thermal conductivity lead-frame material laminated with upper and lower surfaces of a material which matches the expansivity of the semiconductor. These upper and lower surfaces prevent warping of the mounting portions and this, coupled with the matching of the expansivity of the chip, greatly reduces the likelihood of chip damage.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: March 16, 1982
    Assignee: Western Electric Co., Inc.
    Inventors: Roger P. Hynes, Karl A. Stackhouse