Patents by Inventor Lark Lehman

Lark Lehman 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).

  • Publication number: 20050122765
    Abstract: A reference cell layout for use in a 1T/1C ferroelectric memory array includes a transistor of a first polarity type having a gate coupled to a reference word line and a current path coupled between a bit line and an internal cell node, a transistor of a second polarity type having a gate coupled to a pre-charge line and a current path coupled between a source of power supply voltage and the internal cell node, a shunt reference word line extending across the reference cell that is electrically isolated from the reference word line, the pre-charge line and the transistors within the physical boundary of the memory cell, and a ferroelectric capacitor coupled between the internal cell node and a reference plate line.
    Type: Application
    Filed: November 18, 2004
    Publication date: June 9, 2005
    Inventors: Judith Allen, Dennis Wilson, William Kraus, Lark Lehman
  • Publication number: 20010033510
    Abstract: A memory cell layout for use in a 1T/1C ferroelectric memory array includes an access transistor having a gate coupled to a word line and a current path coupled between a bit line and an internal cell node, a shunt word line extending across the memory cell that is electrically isolated from the word line and the access transistor within the physical boundary of the memory cell, and a ferroelectric capacitor coupled between the internal cell node and a plate line.
    Type: Application
    Filed: January 16, 2001
    Publication date: October 25, 2001
    Inventors: Judith E. Allen, Lark Lehman, Dennis R. Wilson