Patents by Inventor William L. Jamison

William L. Jamison 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: 5475040
    Abstract: Filled, thermoplastic-modified thermosetting polyester resin formulations are provided as encapsulants for microelectronics devices. The polyester encapsulant formulations include either a low profile thermoplastic resin additive or a combination of polyethylene and a low shrink thermoplastic additive. In preferred embodiments the polyester encapsulant formulations are of low viscosity and can be utilized in various pressure molding protocols. The encapsulant matrix is characterized by a low coefficient of thermal expansion, very low shrinkage, low modulus, and good thermal conductivity. Microelectronics devices encapsulated with the polyester resin formulation exhibit good resistance to moisture related and stress-induced failure.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: December 12, 1995
    Assignee: Thermoset Plastics, Inc.
    Inventors: William L. Jamison, William H. Jenson, George E. Sears, Jr.
  • Patent number: 5475048
    Abstract: Conductor-filled thermosetting resins having a free radical based cure chemistry are prepared for use as solder paste replacements for electrical conducting attachments of surface mount electronics components to printed circuit boards and as a die attach adhesive. The thermosetting resins exhibit rheological properties that allow them to be substituted for state-of-the-art solder paste and die attach adhesives. The conductor filled resins can be thermally cured in in-line processing operations to provide a low stress, substrate adherent, electrically conductive resin matrix.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: December 12, 1995
    Assignee: Thermoset Plastics, Inc.
    Inventors: William L. Jamison, Andrzej Moscicki
  • Patent number: 5250209
    Abstract: A water washable thermally conductive grease useful for thermal coupling of electronic chips and heat sinks in electronic modules comprises a hydrophilic alkylene oxide modified silicone carrier, and up to 90 weight percent of a microparticulate thermally conductive filler. In a preferred embodiment, the thixotropic dielectric composition further comprises an antioxidant and an ionic surfactant to promote wetting/dispersion of the microparticulate filler. The thermally conductive grease is non-corrosive, resistant to shear induced phase destabilization and capable of being washed from module surfaces with aqueous solutions. Substitution of the present hydrophilic based greases for art-recognized solvent washable greases eliminates use of non-aqueous solvents in electronic module processing/reprocessing operations.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: October 5, 1993
    Assignee: Thermoset Plastics, Inc.
    Inventors: William L. Jamison, Gary J. Larsen, George E. Sears, Jr.
  • Patent number: 5167851
    Abstract: A water washable thermally conductive grease useful for thermal coupling of electronic chips and heat sinks in electronic modules comprises a hydrophilic liquid polymer carrier, an antioxidant, and up to 90 weight percent of a microparticulate thermally conductive filler. In a preferred embodiment, the thixotropic dielectric composition further comprises an ionic surfactant to promote wetting/dispersion of the microparticulate filler. The thermally conductive grease is non-corrosive, resistant to shear induced phase destabilization and capable of being washed from module surfaces with aqueous solutions. Substitution of the present hydrophilic based greases for art-recognized solvent washable greases eliminates use of non-aqueous solvents in electronic module processing/reprocessing operations.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: December 1, 1992
    Assignee: Thermoset Plastics, Inc.
    Inventors: William L. Jamison, Gary J. Larsen, George E. Sears, Jr.
  • Patent number: 4790534
    Abstract: A table-top golf game provides a game board, clubs, and balls, yielding a three-dimensional nature of play simulating that of conventional golf. The board has multi-textured surfaces as playing holes for golf, which include simulated greens, fairways, rough, water hazards and sand traps, and a plurality of tee areas located at varying distances from the greens in order to provide a variety of par three, four and five holes. The clubs have faces of varying angles to achieve shots of varying distances and heights; and, with the exception of the putter, the clubs are spring actuated and may be manipulated to cause various types of shots and trajectories of the game ball. The putter is manually actuated to provide maximum feel to the putting stroke. The ultra light balls have a density of only about 1.3 to 1.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: December 13, 1988
    Inventor: William L. Jamison