Patents by Inventor Vei-Han Chan

Vei-Han Chan 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).

  • Memory cell programming with controlled current injection
    Patent number: 5856946
    Abstract: A memory with controlled gate current injection during memory cell programming wherein programming circuitry applies a time-varying voltage to a control gate of the memory cell during a programming cycle. The time-varying voltage yields a substantially constant rate of electron flow from the channel region to the floating gate during the programming cycle.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: January 5, 1999
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Vei-Han Chan, Sameer Haddad, Chi Chang