Patents by Inventor David Linn Edwards

David Linn Edwards 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: 20020137369
    Abstract: The present invention relates generally to a new apparatus and method for a land grid array electronic module. The land grid array electronic module packaging assembly includes a substrate member upon which electronic components are mounted and which is permanently fastened to an frame member that engages an alignment and mounting feature of an underlying socket. The frame member is sized to overlap the substrate member on at least two opposing edges thereof, and is permanently affixed to the substrate member by an adhesive applied to the overlap. The assembly arrangement allows a permanently correct alignment of the substrate to the underlying socket at minimal expense in valuable substrate top surface real estate. The adhesive accommodates the different thermal expansions between the substrate member and frame member.
    Type: Application
    Filed: March 21, 2001
    Publication date: September 26, 2002
    Applicant: International Business Machines Corporation
    Inventors: David Linn Edwards, Michael Joseph Ellsworth, John G. Torok, Hilton T. Toy, Jeffrey Allen Zitz
  • Patent number: 5977625
    Abstract: A semi-conductor packaging structure and a method to reduce the seal strain of the package are disclosed. The structure comprises a cap, substrate, seal and the cap and substrate have a predetermined TCE mismatch. The TCE mismatch between the cap and substrate is predetermined to minimize the seal strain during power-on and power-off use conditions. Preferably, the device has a substrate comprises a ceramic material, a cap with a thermal conductivity of at least about 100 W/m-K. A method of selecting a cap material is disclosed.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: November 2, 1999
    Assignee: International Business Machines Corporation
    Inventors: David Linn Edwards, Raed A. Sherif, Hilton T. Toy, Shaji Farooq, Patrick Anthony Coico
  • Patent number: 5891755
    Abstract: A process wherein thermal material such as a paste or gel is confined within a paste gap between a surface of a flat cooling plate and an opposing surface of a chip mounted on a surface of a chip carrier or substrate by forming a partition, preferably in the form of a grid, at the periphery of one or more chips. The partition is located laterally in sufficient proximity to the chip and in communication with the paste gap to form a capillary and thus confine motion of a viscous thermal material to repetitive bidirectional flow out of and into the paste gap with relative motion of the chip and the surface of the flat cooling plate. The grid is preferably fitted closely within grooves formed in the surface of the flat cooling plate and preferably supported by leaf springs so that thermal material is confined within cells of the grid while providing support and/or damping of relative motion between the flat cooling plate and the substrate or carrier.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: April 6, 1999
    Assignee: International Business Machines Corporation
    Inventors: David Linn Edwards, Sushumna Iruvanti, Gaetano Paolo Messina, Raed A. Sherif
  • Patent number: 5819402
    Abstract: The present invention relates generally to a new apparatus and method for customized cooling of chips. More particularly, the invention encompasses an apparatus and a method that provides customized cooling of a MCM (Multi-Chip Module) by varying the depth of thermal compound filled gap or the blind hole that is above each chip.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: October 13, 1998
    Assignee: International Business Machines Corporation
    Inventors: David Linn Edwards, Mark Gerard Courtney, Albert Joseph Fahey, Gregory Scott Hopper, Sushumna Iruvanti, Charles Frederick Jones, Gaetano Paolo Messina, Raed A. Sherif
  • Patent number: 5757620
    Abstract: The present invention relates generally to a new apparatus and method for customized cooling of chips. More particularly, the invention encompasses an apparatus and a method that provides customized cooling of a MCM (Multi-Chip Module) by varying the depth of thermal compound filled gap or the blind hole that is above each chip.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: May 26, 1998
    Assignee: International Business Machines Corporation
    Inventors: David Linn Edwards, Mark Gerard Courtney, Albert Joseph Fahey, Gregory Scott Hopper, Sushumna Iruvanti, Charles Frederick Jones, Gaetano Paolo Messina, Raed A. Sherif
  • Patent number: 5724729
    Abstract: The present invention relates generally to a new apparatus and method for customized cooling of chips using a plurality of thermally conductive materials. More particularly, the invention encompasses an apparatus and a method that provides customized cooling of a MCM (Multi-Chip Module) by using a plurality of thermally conductive materials.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: March 10, 1998
    Assignee: International Business Machines Corporation
    Inventors: Raed A. Sherif, Mark Gerard Courtney, David Linn Edwards, Albert Joseph Fahey, Gregory Scott Hopper, Sushumna Iruvanti, Charles Frederick Jones, Gaetano Paolo Messina
  • Patent number: 5723905
    Abstract: A semi-conductor packaging structure and a method to reduce the seal strain of the package are disclosed. The structure comprises a cap, substrate, seal and the cap and substrate have a predetermined TCE mismatch. The TCE mismatch between the cap and substrate is predetermined to minimize the seal strain during power-on and power-off use conditions. Preferably, the device has a substrate comprises a ceramic material, a cap with a thermal conductivity of at least about 100 W/m-K. A method of selecting a cap material is disclosed.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: March 3, 1998
    Assignee: International Business Machines Corporation
    Inventors: Patrick Anthony Coico, David Linn Edwards, Shaji Farooq, Raed A. Sherif, Hilton T. Toy
  • Patent number: 5706171
    Abstract: Thermal material such as a paste or gel is confined within a paste gap between a surface of a flat cooling plate and an opposing surface of a chip mounted on a surface of a chip carrier or substrate by forming a partition, preferably in the form of a grid, at the periphery of one or more chips. The partition is located laterally in sufficient proximity to the chip and in communication with the paste gap to form a capillary and thus confine motion of a viscous thermal material to repetitive bidirectional flow out of and into the paste gap with relative motion of the chip and the surface of the flat cooling plate. The grid is preferably fitted closely within grooves formed in the surface of the flat cooling plate and preferably supported by leaf springs so that thermal material is confined within cells of the grid while providing support and/or damping of relative motion between the flat cooling plate and the substrate or carrier.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: January 6, 1998
    Assignee: International Business Machines Corporation
    Inventors: David Linn Edwards, Sushumna Iruvanti, Gaetano Paolo Messina, Raed A. Sherif