Patents by Inventor Derek A. Coulton

Derek A. Coulton 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: 4112196
    Abstract: An improved laminated beam lead for microelectronic devices, e.g., thin film resistors, integrated circuits or the like includes a first metal adhesion layer, e.g. tantalum nitride having disposed thereover a barrier metal such as palladium or platinum, and a bulk beam material, e.g., gold.In accordance with one aspect of the present invention, a transverse discontinuity is formed in the barrier metalization layer such that normal forces applied to the end portion of the composite beam lead remote from the device chip will merely cause the beam lead to deform at the discontinuity rather than delaminating from the chip.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: September 5, 1978
    Assignee: National Micronetics, Inc.
    Inventors: Thomas R. Selig, Tugrul Yasar, Derek A. Coulton