Patents by Inventor Mahendar Kumar

Mahendar Kumar 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).

  • SOI trench capacitor cell incorporating a low-leakage floating body array transistor
    Patent number: 6964897
    Abstract: A DRAM array in an SOI wafer having a uniform BOX layer extending throughout the array eliminates the collar oxide step in processing; connects the buried plates with an implant that, in turn, is connected to a conductive plug extending through the device layer and the box that is biased at ground; while the pass transistors are planar NFETs having floating bodies that have a leakage discharge path to ground through a grounded bitline.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: November 15, 2005
    Assignee: International Business Machines Corporation
    Inventors: Karen A. Bard, David M. Dobuzinsky, Herbert L. Ho, Mahendar Kumar, Denise Pendleton, Michael D. Steigerwalt, Brian L. Walsh
  • SOI TRENCH CAPACITOR CELL INCORPORATING A LOW-LEAKAGE FLOATING BODY ARRAY TRANSISTOR
    Publication number: 20040248363
    Abstract: A DRAM array in an SOI wafer having a uniform BOX layer extending throughout the array eliminates the collar oxide step in processing; connects the buried plates with an implant that, in turn, is connected to a conductive plug extending through the device layer and the box that is biased at ground; while the pass transistors are planar NFETs having floating bodies that have a leakage discharge path to ground through a grounded bitline.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Karen A. Bard, David M. Dobuzinsky, Herbert L. Ho, Mahendar Kumar, Denise Pendleton, Michael D. Steigerwalt, Brian L. Walsh