Patents by Inventor Stephen J Duey

Stephen J Duey 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).

  • Patent number: 6394520
    Abstract: An apparatus and method are provided for picking up an integrated circuit and for facilitating the optical testing thereof. The apparatus comprises a pick-up mechanism that includes a vacuum chamber. The vacuum chamber is defined by an upper portion, an expandable member, and a lower portion. The lower portion defines a suction orifice that is moveable with a movement of the expandable member. An optical pathway is defined by the vacuum chamber, the optical pathway passing through the suction orifice and onto an integrated circuit that is held against the suction orifice via a vacuum pressure applied to the vacuum chamber.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 28, 2002
    Assignee: Agilent Technologies, Inc.
    Inventors: Keith W Quick, Stephen J Duey
  • Patent number: 6364386
    Abstract: An apparatus and method are provided for picking up an integrated circuit and for facilitating the optical testing thereof. The apparatus comprises a pick-up mechanism that includes a vacuum chamber. The vacuum chamber is defined by an upper portion, an expandable member, and a lower portion. The lower portion defines a suction orifice that is moveable with a movement of the expandable member. An optical pathway is defined by the vacuum chamber, the optical pathway passing through the suction orifice and onto an integrated circuit that is held against the suction orifice via a vacuum pressure applied to the vacuum chamber.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: April 2, 2002
    Assignee: Agilent Technologies, Inc.
    Inventors: Keith W Quick, Stephen J Duey
  • Publication number: 20020036411
    Abstract: An apparatus and method are provided for picking up an integrated circuit and for facilitating the optical testing thereof. The apparatus comprises a pick-up mechanism that includes a vacuum chamber. The vacuum chamber is defined by an upper portion, an expandable member, and a lower portion. The lower portion defines a suction orifice that is moveable with a movement of the expandable member. An optical pathway is defined by the vacuum chamber, the optical pathway passing through the suction orifice and onto an integrated circuit that is held against the suction orifice via a vacuum pressure applied to the vacuum chamber.
    Type: Application
    Filed: October 30, 2001
    Publication date: March 28, 2002
    Inventors: Keith W. Quick, Stephen J. Duey
  • Patent number: 5422299
    Abstract: A quasi-dielectrically isolated (QDI) bipolar structure using epitaxial lateral overgrowth (ELO) uses a combination of dielectric isolation (DI) and junction isolation (JI), providing better isolation properties than JI, while providing better heat dissipation than DI. ELO silicon is grown out of a deep basin with oxide sidewalls for lateral dielectric isolation. The ELO silicon is grown at a low temperature and pressure in an RF heated pancake-type reactor. Fabricated transistors have gains, ideality factors, and leakage currents comparable to bulk devices. A main application for QDI is in power integrated circuits (PICs) where isolation of high power devices and low power logic is necessary.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: June 6, 1995
    Assignee: Purdue Research Foundation
    Inventors: Gerold W. Neudeck, Stephen J. Duey