Patents by Inventor Ted Letavic

Ted Letavic 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: 20050259368
    Abstract: Termination of a high voltage device is achieved by a plurality of discrete deposits of charge that are deposited in varying volumes and/or spacing laterally along a termination region. The manner in which the volumes and/or spacing varies also varies between different layers of a multiple layer device. In a preferred embodiment, the variations are such that the field strength is substantially constant along any horizontal or vertical cross section of the termination region.
    Type: Application
    Filed: June 24, 2005
    Publication date: November 24, 2005
    Inventors: Ted Letavic, Mark Simpson
  • Patent number: 6927103
    Abstract: Termination of a high voltage device is achieved by a plurality of discrete deposits of charge that are deposited in varying volumes and/or spacing laterally along a termination region. The manner in which the volumes and/or spacing varies also varies between different layers of a multiple layer device. In a preferred embodiment, the variations are such that the field strength is substantially constant along any horizontal or vertical cross section of the termination region.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: August 9, 2005
    Assignee: Koninklijke Phillips Electronics N.V.
    Inventors: Ted Letavic, Mark Simpson
  • Publication number: 20040104430
    Abstract: Termination of a high voltage device is achieved by a plurality of discrete deposits of charge that are deposited in varying volumes and/or spacing laterally along a termination region. The manner in which the volumes and/or spacing varies also varies between different layers of a multiple layer device. In a preferred embodiment, the variations are such that the field strength is substantially constant along any horizontal or vertical cross section of the termination region.
    Type: Application
    Filed: November 12, 2003
    Publication date: June 3, 2004
    Inventors: Ted Letavic, Mark Simpson
  • Patent number: 6642558
    Abstract: Termination of a high voltage device is achieved by a plurality of discrete deposits of charge that are deposited in varying volumes and/or spacing laterally along a termination region. The manner in which the volumes and/or spacing varies also varies between different layers of a multiple layer device. In a preferred embodiment, the variations are such that the field strength is substantially constant along any horizontal or vertical cross section of the termination region.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: November 4, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ted Letavic, Mark Simpson
  • Patent number: 6414365
    Abstract: A thin layer SOI high-voltage device in which the drift charge is depleted using a three-dimensional MOS capacitor structure. The drift region of the high-voltage semiconductor device is doped with a graded charge profile which increases from source-to-drain. The drift region is physically patterned to create a stripe geometry where individual SOI stripes. Each SOI stripe is individually circumscribed longitudinally by a dielectric layer wherein each dielectric layer is longitudinally circumscribed by field plates of a conducting multi-capacitor field plate layer which is electrically shorted to the substrate. The resultant structure is a thin drift-region stripe which is completely enclosed by a MOS field plate, resulting in three-dimensional depletion upon application of a bias voltage between the SOI stripe and its encapsulating field plates.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: July 2, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ted Letavic, Mark Simpson