Patents by Inventor Kola Nirmal Ratnakumar

Kola Nirmal Ratnakumar 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: 7869279
    Abstract: A memory device including a plurality of memory cells, each with access and program PMOS transistors situated in a common N-Well formed in a P-substrate, and an n-erase pocket formed directly in the P-substrate. Each cell includes a program PMOS including gate, and first and second P+ regions formed in an N-Well, wherein the first P+ region is electrically connected to a corresponding bit line. Each cell further comprises an access PMOS including a gate, and first and second P+ regions formed within the same n-doped well as the first and second P+ regions of the program PMOS, wherein the first P+ region is electrically connected to the second P+ region of the program PMOS, and the gate is electrically connected to a corresponding word line. Each cell further includes an n-doped erase pocket including gate, and first and second N+ regions electrically connected to a corresponding erase line, and the gate is electrically connected to the gate of the program PMOS, forming the floating gate of the cell.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: January 11, 2011
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Kola Nirmal Ratnakumar