Patents by Inventor Don Gerber

Don Gerber 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).

  • Patent number: 6432761
    Abstract: A split-gate p-channel memory cell of an EEPROM, and method of fabricating the cell, are provided. The memory cell includes a memory transistor and select transistor that share a common gate. It further includes two independent and distinct threshold voltage adjusts implanted in different portions of a channel region of a substrate of the memory cell. One of the threshold voltage adjusts is disposed in relation to the memory transistor so as to influence its threshold voltage. The other threshold voltage adjust is disposed in relation to the selected transistor so as to influence its threshold voltage. In the method of fabrication, an n-type of dopant is implanted into the substrate to form the threshold voltage adjust associated with the memory transistor and a p-type of dopant is implanted into the substrate to form the threshold voltage adjust associated with the select transistor.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: August 13, 2002
    Assignee: Microchip Technology Incorporated
    Inventors: Don Gerber, Jeff Shields, David Suda