Patents by Inventor Lawrence J. Dunlop

Lawrence J. Dunlop 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).

  • Sidewall decoupling capacitor
    Patent number: 5339212
    Abstract: The invention provides a decoupling capacitor which utilizes a plurality of tungsten studs and metal interconnects to maximize the surface area of the capacitor, thereby increasing the capacitance. The metal interconnects only partially overlap the tungsten studs, forming the first plate of the capacitor, so that the tops of the studs as well as the sides and tops of the interconnects provide the increased surface area. A method of forming the capacitors, and a method of increasing capacitance of a capacitor, are also provided.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: August 16, 1994
    Assignee: International Business Machines Corporation
    Inventors: Robert M. Geffken, Lawrence J. Dunlop
  • Bathtub
    Patent number: D313839
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: January 15, 1991
    Assignee: Adamsez (N.I.) Limited
    Inventor: Lawrence J. Dunlop