Patents by Inventor James C. Y. Yu

James C. Y. Yu 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).

  • Program algorithm for low voltage single power supply flash memories
    Patent number: 5644531
    Abstract: A programming algorithm for a flash memory wherein programming circuitry is subdivided into a set of separately controllable groups. The algorithm detects a number of logic zeros to be programmed into a flash cell array by each group and switches among the groups such that a number of simultaneously programmed cells in the flash cell array does not exceed a predetermined number and such that maximum available programming current is used to enhance programming speed.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: July 1, 1997
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Tiao Hua Kuo, Chung K. Chang, Johnny Chen, James C. Y. Yu