Patents by Inventor Edward G. Bundga

Edward G. Bundga 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: 6425772
    Abstract: Forming an isotropic electrical connection and a mechanical bond between two articles having metal surfaces. The resulting bond is preferably between metal contact pads on a dielectric substrate and on an electronic device. The connection is provided by utilizing a conductive adhesive wherein the conduction is provided by metal particles which have exposed palladium thereon. The particles may be the metal palladium itself or it may be some other metal, such as silver, having palladium coated thereon. The particles typically are flakes with the palladium having an incipient dendritic form on the surface, i.e.; the palladium has a multi-pointed surface configuration that can grow into fully formed needle-like dendritic structures. The polymer preferably is conventional polyimide/siloxane which is a thermoplastic, i.e. upon heating softens and upon cooling sets, and upon reheating will soften and reflow.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: July 30, 2002
    Assignee: International Business Machines Corporation
    Inventors: William E. Bernier, Edward G. Bundga
  • Publication number: 20020022384
    Abstract: A method of forming an isotropic electrical connection and a mechanical bond between two articles having metal surfaces thereon and the resulting bond, preferably metal contact pads on a dielectric substrate and on an electronic device. The connection is provided by utilizing a conductive adhesive wherein the conduction is provided by metal particles which have exposed palladium thereon. The particles may be the metal palladium itself or it may be some other metal, such as silver, having palladium coated thereon. The particles typically are flakes with the palladium having an incipient dendritic form on the surface, i.e.; the palladium has a multi-pointed surface configuration that can grow into fully formed needle-like dendritic structures. The polymer preferably is conventional polyimide/siloxane which is a thermoplastic, i.e. upon heating softens and upon cooling sets, and upon reheating will soften and reflow.
    Type: Application
    Filed: July 23, 2001
    Publication date: February 21, 2002
    Applicant: International Business Machines Corporation
    Inventors: William E. Bernier, Edward G. Bundga
  • Patent number: 6331119
    Abstract: A method of forming an isotropic electrical connection and a mechanical bond between two articles having metal surfaces thereon and the resulting bond is provided. Preferably, the metal surfaces are the surfaces of metal contact pads on a dielectric substrate and on an electronic device such as an I/C chip or chip carrier. The mechanical bond and electrical connection is provided by utilizing a conductive adhesive, in which adhesive the conduction is provided by metal particles which have exposed palladium thereon. The particles may be the metal palladium itself or it may be some other metal, such as silver, having palladium coated thereon, preferably by electrodeposition. The particles typically are flakes with the palladium having an incipient dendritic form on the surface, i.e.; the palladium has a multi-pointed surface configuration that can grow into fully formed needle-like dendritic structures. However, the shape of the particle is not significant.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: December 18, 2001
    Assignee: International Business Machines Corporation
    Inventors: William E. Bernier, Edward G. Bundga
  • Patent number: 5281150
    Abstract: A method and device are provided for connecting a triaxial or coaxial cable to a substrate by surface mount technology wherein the substrate has a plurality of contact pads located on the surface thereof. The connector includes a signal wire connector element connected to the signal wire of the cable and a drain wire connector element connected to each of the drain wires of the cable. The connection also includes resilient connector element, including a flexible circuit having a plurality of spaced electrical conducting lines thereon. One set of lines is for connection to the signal wires of the cable and the other set for connection to the drain wire(s) of the cable. The opposite ends of the signal line and drain line of the flexible circuit element are connected to electrical connection pads on the substrate to provide signal and drain connections between the cable and the substrate.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: January 25, 1994
    Assignee: International Business Machines Corporation
    Inventors: Edward G. Bundga, Michael D. Dinardo, Jeffrey A. Knight, Louis J. Konrad, III