Patents by Inventor Joseph M. Viggiano

Joseph M. Viggiano 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: 6271076
    Abstract: A structure and method for providing an interface with an oxide surface which exhibits both high adhesion and preferred electrical properties. The method involves providing a partial layer of a first material, chosen for its electrical properties, whereby the partial layer has openings through which areas of the oxide surface are exposed. Provision of the partial layer is followed by deposition of a continuous layer of a second material, selected for its preferred physical interface properties, i.e., adhesion. The continuous layer of the second material is deposited over the partial layer including the exposed areas of the oxide surface. The second material will adhere to the exposed areas of oxide, while the first material will provide a discrete interface with the oxide.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: August 7, 2001
    Assignee: International Business Machines Corporation
    Inventors: Robert Benjamin Laibowitz, Thomas McCarroll Shaw, Joseph M. Viggiano
  • Patent number: 5926360
    Abstract: A structure for providing an interface with an oxide surface which exhibits both high adhesion and preferred electrical properties. An embodiment includes a capacitor structure having one or two electrodes abutting a high dielectric thin film, whereby the electrodes comprise first partial layers of metal having favorable electrical properties and second continuous layers adjacent the first partial layers, with the second layer material having been chosen for its physical properties, and wherein the second material adheres to exposed areas of the thin film through openings in the partial metal layer.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: July 20, 1999
    Assignee: International Business Machines Corporation
    Inventors: Robert Benjamin Laibowitz, Thomas McCarroll Shaw, Joseph M. Viggiano
  • Patent number: 5447906
    Abstract: Superconducting transition metal oxide films are provided which exhibit very high onsets of superconductivity and superconductivity at temperatures in excess of 40.degree. K. These films are produced by vapor deposition processes using pure metal sources for the metals in the superconducting compositions, where the metals include multi-valent nonmagnetic transition metals, rare earth elements and/or rare earth-like elements and alkaline earth elements. The substrate is exposed to oxygen during vapor deposition, and, after formation of the film, there is at least one annealing step in an oxygen ambient and slow cooling over several hours to room temperature. The substrates chosen are not critical as long as they are not adversely reactive with the superconducting oxide film. Transition metals include Cu, Ni, Ti and V, while the rare earth-like elements include Y, Sc and La. The alkaline earth elements include Ca, Ba and Sr.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: September 5, 1995
    Assignee: International Business Machines Corporation
    Inventors: Praveen Chaudhari, Richard J. Gambino, Roger H. Koch, James A. Lacey, Robert B. Laibowitz, Joseph M. Viggiano