Patents by Inventor James William Milligan

James William Milligan 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).

  • Semiconductor devices having thermal spacers
    Patent number: 7135747
    Abstract: A high power, high frequency semiconductor device has a plurality of unit cells connected in parallel. The unit cells each having a controlling electrode and first and second controlled electrodes. A thermal spacer divides at least one of the unit cells into a first active portion and a second active portion, spaced apart from the first potion by the thermal spacer. The controlling electrode and the first and second controlled electrodes of the unit cell cross over the first thermal spacer.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: November 14, 2006
    Assignee: Cree, Inc.
    Inventors: Scott Thomas Allen, James William Milligan