Patents by Inventor Charles Robert Davis

Charles Robert Davis 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: 7009280
    Abstract: An interlevel dielectric layer (ILD) comprises a low-k dielectric layer; and a low-k dielectric film, deposited under compressive stress, atop the dielectric layer. The dielectric layer comprises a low-k material, such as an organosilicon glass (OSG) or a SiCOH material. The dielectric film has a thickness, which is 2%–10% of the thickness of the dielectric layer, has a similar chemical composition to the dielectric layer, but has a different morphology than the dielectric layer. The dielectric film is deposited under compressive stress, in situ, at or near the end of the dielectric layer deposition by altering a process that was used to deposit the low-k dielectric layer.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: March 7, 2006
    Assignee: International Business Machines Corporation
    Inventors: Matthew Angyal, Edward Paul Barth, Sanjit Kumar Das, Charles Robert Davis, Habib Hichri, William Francis Landers, Jia Lee
  • Patent number: 5872337
    Abstract: Reinforcement members are disposed along only the transverse edge regions of selected flexible cables of an integral chip carrier and cable assembly, and along only the respectively aligned end areas of the chip carrier portion of the assembly. The reinforcement members may be disposed along all of the flexible cables and end areas of the assembly, or on only selected cable and end area portions of the assembly. The reinforcement members are formed of a tough tear resistant polymer material, such as a hot melt adhesive or polymer tape or film.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: February 16, 1999
    Assignee: International Business Machines Corporation
    Inventors: Donald Seton Farquhar, Stephen Joseph Fuerniss, Charles Robert Davis, David Lee Questad, Darbha Suryanarayana, Jeffrey Alan Zimmerman
  • Patent number: 5789121
    Abstract: The present invention provides a method of ablative photodecomposition and forming metal pattern which attains high resolution, is convenient, and employs non-halogenated solvents. The present invention is directed to a process for forming a metal pattern, preferably circuitization on an organic substrate, preferably on a circuit board or component thereof, which comprises coating the substrate with an ablatively-removable coating comprising a polymer resin preferably an acrylate polymer resin and preferably an ultraviolet absorber. A pattern is formed in the polymer coating corresponding to the desired metal pattern by irradiating at least a portion of the polymer coating with a sufficient amount of ultraviolet radiation to thereby ablatively remove the irradiated portion of the polymer coating. Next the patterned substrate is coated with a conductive metal paste to define the metal pattern, and the conductive metal paste is cured.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: August 4, 1998
    Assignee: International Business Machines Corporation
    Inventors: Douglas Adam Cywar, Charles Robert Davis, Thomas Patrick Duffy, Frank Daniel Egitto, Paul Joseph Hart, Gerald Walter Jones, Edward McLeskey
  • Patent number: 5709805
    Abstract: A method for producing a panel of a multi-layer electronic circuit package and resulting article of manufacture is provided comprising the steps of coating a circuitized core material that has been cut into panels with a dielectric material and copper cover sheets; forming circuits from the cover sheets by etching; applying an adhesive polymer across the dielectric material covering the entire area of the panel; applying a cover sheet; drilling the panel to form through-holes and vias; seeding and plating the through-holes and vias with joining metal; applying photo-resist to the panels exposed with an image of the area of the panel to be joined and developed; and etching the cover sheet and the photo-resist away in the area of the panel to be joined to expose the adhesive polymer.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: January 20, 1998
    Assignee: International Business Machines Corporation
    Inventors: Charles Robert Davis, Thomas P. Gall
  • Patent number: 5679444
    Abstract: A method for producing a panel of a multi-layer electronic circuit package and resulting article of manufacture is provided comprising the steps of coating a circuitized core material that has been cut into panels with a dielectric material and copper cover sheets; forming circuits from the cover sheets by etching; applying an adhesive polymer across the dielectric material covering the entire area of the panel; applying a cover sheet; drilling the panel to form through-holes and vias; seeding and plating the through-holes and vias with joining metal; applying photo-resist to the panels exposed with an image of the area of the panel to be joined and developed; and etching the cover sheet and the photo-resist away in the area of the panel to be joined to expose the adhesive polymer.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: October 21, 1997
    Assignee: International Business Machines Corporation
    Inventors: Charles Robert Davis, Thomas P. Gall