Patents by Inventor Daniel L. Callahan

Daniel L. Callahan 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: 20090020313
    Abstract: A system comprising a first layer comprising one or more metal sub-layers and a protective overcoat (PO) layer adjacent to the first layer. The PO layer is adapted to protect the first layer, and a circuit logic is at least partially embedded within the PO layer. The circuit logic couples to one of the metal sub-layers.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 22, 2009
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yves LEDUC, Nathalie MESSINA, Kelly J. TAYLOR, Louis N. HUTTER, Jeffrey P. SMITH, Byron L. WILLIAMS, Abha R. SINGH, Scott R. SUMMERFELT, Daniel L. CALLAHAN
  • Patent number: 6920052
    Abstract: The present invention relates to a method and apparatus that prevents/minimizes cracking in the ceramic body of processors. The ability to prevent/minimize cracking can ensure successful operation and substantially increase processor lifetime. The present invention discloses a device for maintaining a microprocessor in a desired relationship with a printed wiring board while limiting the transmission of shock and vibrational motion to and from the processor includes a printed wiring board, a processor, and a dynamic isolating mount compressed between the printed wiring board and the processor, wherein the processor maintains the dynamic isolating mount in a compressed state such that the dynamic isolating mount bears on the printed wiring board.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: July 19, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daniel L. Callahan, Raymond J. Iannuzzelli
  • Patent number: 6884101
    Abstract: A self-locking interposer restraint mechanism is disclosed. Rather than using screws to compress springs, clips are pushed down over the posts to compress the springs. Once the clips are pushed down to a level at which the springs are sufficiently compressed, the clips engage stops fabricated into the posts thereby locking the restraint mechanism.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: April 26, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Raymond J. Iannuzzelli, Daniel L. Callahan, Philip R. Tousignant
  • Publication number: 20040057221
    Abstract: The present invention relates to a method and apparatus that prevents/minimizes cracking in the ceramic body of processors. The ability to prevent/minimize cracking can ensure successful operation and substantially increase processor lifetime. The present invention discloses a device for maintaining a microprocessor in a desired relationship with a printed wiring board while limiting the transmission of shock and vibrational motion to and from the processor includes a printed wiring board, a processor, and a dynamic isolating mount compressed between the printed wiring board and the processor, wherein the processor maintains the dynamic isolating mount in a compressed state such that the dynamic isolating mount bears on the printed wiring board.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 25, 2004
    Inventors: Daniel L. Callahan, Raymond J. Iannuzzelli
  • Patent number: 6633489
    Abstract: The present invention relates to a method and apparatus that prevents/minimizes cracking in the ceramic body of processors. The ability to prevent/minimize cracking can ensure successful operation and substantially increase processor lifetime. The present invention discloses a device for maintaining a microprocessor in a desired relationship with a printed wiring board while limiting the transmission of shock and vibrational motion to and from the processor includes a printed wiring board, a processor, and a dynamic isolating mount compressed between the printed wiring board and the processor, wherein the processor maintains the dynamic isolating mount in a compressed state such that the dynamic isolating mount bears on the printed wiring board.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 14, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daniel L. Callahan, Raymond J. Iannuzzelli
  • Publication number: 20030073336
    Abstract: A self-locking interposer restraint mechanism is disclosed. Rather than using screws to compress springs, clips are pushed down over the posts to compress the springs. Once the clips are pushed down to a level at which the springs are sufficiently compressed, the clips engage stops fabricated into the posts thereby locking the restraint mechanism.
    Type: Application
    Filed: October 17, 2001
    Publication date: April 17, 2003
    Inventors: Raymond J. Iannuzzelli, Daniel L. Callahan, Philip R. Tousignant
  • Publication number: 20030026070
    Abstract: The present invention relates to a method and apparatus that prevents/minimizes cracking in the ceramic body of processors. The ability to prevent/minimize cracking can ensure successful operation and substantially increase processor lifetime. The present invention discloses a device for maintaining a microprocessor in a desired relationship with a printed wiring board while limiting the transmission of shock and vibrational motion to and from the processor includes a printed wiring board, a processor, and a dynamic isolating mount compressed between the printed wiring board and the processor, wherein the processor maintains the dynamic isolating mount in a compressed state such that the dynamic isolating mount bears on the printed wiring board.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 6, 2003
    Inventors: Daniel L. Callahan, Raymond J. Iannuzzelli
  • Patent number: 6002259
    Abstract: A electrostatic adhesion tester for thin film conductors. In one embodiment, a device is provided for testing the adhesion strength of a thin film conductor that has been formed upon a substrate. The device includes an adhesion tester that is primarily comprised of a conducting portion. The conducting portion is applied to the thin film conductor so that it does not physically contact the thin film conductor, but leaves a small space there between. A power supply may further be provided for coupling to either the adhesion tester, the thin film conductor, or both in order to create a potential difference between the conducting portion and the thin film conductor. The potential difference creates an electric field between the conducting portion and the thin film conductor that induces stress in the thin film conductor.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: December 14, 1999
    Assignee: Rice University
    Inventors: Alfred J. Griffin, Jr., Franz R. Brotzen, Daniel L. Callahan, Haining S. Yang
  • Patent number: 4424625
    Abstract: A removal tool for removing strip electrical connectors held in place by friction contact with electrical interconnection ends associated therewith is described. A pair of spaced apart wall members have inclined plane members associated therewith for engaging the undersurface of the connector to be removed for forcing the connector away from the support surface for sequentially disengaging the electrical interconnecting pins as the removal tool is moved axially along the longitudinal length of the connector.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: January 10, 1984
    Assignee: Sperry Corporation
    Inventor: Daniel L. Callahan