Patents by Inventor Issac H. Yamasaki

Issac H. Yamasaki 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).

  • Method of erasing UPROM transistors
    Patent number: 5656521
    Abstract: The failure rate of semiconductor devices containing UPROM transistors is improved by erasing the UPROM transistors using X-rays. The semiconductor devices are subsequently exposed to UV radiation to erase other transistors charged during X-ray exposure.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: August 12, 1997
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Darlene Hamilton, Issac H. Yamasaki