Patents Represented by Attorney, Agent or Law Firm H. Donalo Nelson
  • Flash memory cells having a modulation doped heterojunction structure
    Patent number: 6207978
    Abstract: A flash memory device and a method to manufacture the flash memory device. The flash memory device includes a modulation-doped heterostructure formed in a semiconductor substrate, a layer of tunnel oxide, a floating gate, a layer of dielectric, a control gate and source and drain regions formed in the substrate.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 27, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Richard Fastow
  • Reduction of oxide stress through the use of forward biased body voltage
    Patent number: 6137727
    Abstract: A method of reading a flash memory (EEPROM) device by applying zero to all bitlines except for the bitline to which the cell being read is attached, applying a positive voltage to the wordline to which the cell being read is attached and applying a positive voltage to the p-well in which the cell being read is formed. A positive voltage is applied to the bitline to which the cell being read is attached.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: October 24, 2000
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Lee Cleveland