Patents by Inventor Tommy D. Clark

Tommy D. Clark 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).

  • Laser trimming of circuit elements on semiconductive substrates
    Patent number: 4399345
    Abstract: A method of laser trimming thin film resistors on semiconductive substrates wherein the laser is set to a frequency equal to or less than E.sub.g /h, where E.sub.g is the optical band-gap energy of the doped semiconductor substrate, and h is Planck's constant.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: August 16, 1983
    Assignee: Analog Devices, Inc.
    Inventors: Jerome F. Lapham, Tommy D. Clark