Patents by Inventor Stephen J. Whitney

Stephen J. Whitney 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: 6507264
    Abstract: A fuse element partially encapsulated in an arc-suppression material which can, in turn, be integrated along with a semiconductor device into a semiconductor package to provide overcurrent protection, as well as a method of integrating such a fuse along with a semiconductor device into a semiconductor package wherein the semiconductor package has a standard form factor based on the semiconductor device integrated within.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: January 14, 2003
    Assignee: Littelfuse, Inc.
    Inventor: Stephen J. Whitney
  • Publication number: 20020050910
    Abstract: An arrangement of voltage variable materials for the protection of electrical components from electrical overstress (EOS) transients. A device having a plurality of electrical leads, a ground plane and a layer of voltage variable material. The voltage variable material physically bonds the plurality of electrical leads to one another as well as provides an electrical connection between the plurality of electrical leads and the ground plane. A die having a circuit integrated therein is attached to the ground plane. Conductive members electrically connect the plurality of electrical leads to the integrated circuit. At normal operating voltages, the voltage variable material has a high resistance, thus channeling current from the electrical leads to the integrated circuit via the conductive members.
    Type: Application
    Filed: August 19, 1999
    Publication date: May 2, 2002
    Inventors: STEPHEN J. WHITNEY, LOUIS RECTOR, HUGH M. HYATT, ANTHONY D. MINERVINI, HONORIO S. LUCIANO
  • Patent number: 6351011
    Abstract: A number of integrated circuit dies having on board protection against electrical overstress (EOS) transients are provided. Generally, the devices have an integrated circuit die with an outer periphery and a functional die area. A plurality of conductive input/output pads are formed on the integrated circuit die. Typically, a first conductive guard rail is disposed on the integrated circuit die and forms a gap between each one of the input/output pads. A voltage variable material is disposed in the gaps between the conductive guard rail and the input/output pads. Typically, a plurality of electrical leads are electrically connected to a respective one of the plurality of conductive input/output pads. At normal operating voltages, the voltage variable material is non-conductive. However, in response to an EOS transient, the voltage variable material switches to a low resistance state, providing a conductive path between the conductive guard rail and the input/output pads.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: February 26, 2002
    Assignee: Littlefuse, Inc.
    Inventors: Stephen J. Whitney, Edwin James Harris, IV, Jeffrey S. Niew, Michael J. Weber
  • Patent number: 6211554
    Abstract: An integrated circuit die having on board protection against electrical overstress (EOS) transients. A device having an integrated circuit die with an outer periphery and a functional die area. A plurality of conductive input/output pads are formed on the integrated circuit die. A first conductive guard rail is disposed on the integrated circuit die and forms a gap between each one of the input/output pads. A voltage variable material is disposed in the gaps between the conductive guard rail and the input/output pads. A plurality of electrical leads are electrically connected to a respective one of the plurality of conductive input/output pads. At normal operating voltages, the voltage variable material is non-conductive. However, in response to an EOS transient, the voltage variable material switches to a low resistance state, providing a conductive path between the conductive guard rail and the input/output pads.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: April 3, 2001
    Assignee: Littelfuse, Inc.
    Inventor: Stephen J. Whitney
  • Patent number: 6160695
    Abstract: A method for fabricating transient voltage protection devices is described wherein a gap between a ground conductor and another conductor is formed using a diamond dicing saw. Substrate material selection and includes specific ceramic materials designed to optimize performance and manufacturability. An overlay layer can be provided to minimize burring of the conductors during formation of the gap.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: December 12, 2000
    Assignee: Cooper Technologies
    Inventors: Joan L. Winnett, Stephen J. Whitney, Edward G. Glass, Vernon Spaunhorst, Farid Ghaderi
  • Patent number: 6013358
    Abstract: A transient voltage protection device is described wherein a gap between a ground conductor and another conductor is formed using a diamond dicing saw. Substrate material selection includes specific ceramic materials having a density of less than 3.8 gm/cm.sup.3 designed to optimize performance and manufacturability. An overlay layer can be provided to minimize burring of the conductors during formation of the gap.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: January 11, 2000
    Assignee: Cooper Industries, Inc.
    Inventors: Joan L. Winnett, Stephen J. Whitney, Edward G. Glass, Vernon Spaunhorst, Farid Ghaderi
  • Patent number: 5812046
    Abstract: A method for manufacturing a subminiature fuse includes the steps of applying metallized coatings to surfaces at axially opposite ends of a hollow fuse body, placing a fuse element in an internal cavity in the fuse body, the fuse element extending from the first end to the second end of the cavity, placing a one of a solder and brazing preform and end termination at each of the first and second ends of the cavity, and heating the assembled fuse body, fuse element, solder preforms and end terminations to a temperature sufficient to cause the solder preforms to bond the fuse element to the end terminations and for the end terminations to bond with the metallized end portions of the fuse body, wherein the end terminations form hermetic seals closing the ends of the cavity. A subminiature fuse according to the invention includes a fuse body with a fuse element diagonally disposed in the body. The fuse body includes metallized end portions to which the end terminations are bonded.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: September 22, 1998
    Assignee: Cooper Technologies, Inc.
    Inventors: Russell Brown, Farid Ghaderi, Varinder K. Kalra, Keith A. Spalding, Joan L. Winnett, Stephen J. Whitney