Patents by Inventor Ralph S. Paonessa

Ralph S. Paonessa 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).

  • Coated filler and use thereof
    Patent number: 5614250
    Abstract: Fillers coated with a fluorosilane coating are provided as well as compositions containing the coated fillers. Compositions are especially suitable for substrates for printed circuit boards and cards.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 25, 1997
    Assignee: International Business Machines Corporation
    Inventors: Carl E. Diener, Ashit A. Mehta, Ralph S. Paonessa, Eugene R. Skarvinko, David W. Wang
  • Coated filler and use thereof
    Patent number: 5607744
    Abstract: Fillers coated with a fluorosilane coating are provided as well as compositions containing the coated fillers. Compositions are especially suitable for substrates for printed circuit boards and cards.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: March 4, 1997
    Assignee: International Business Machines Corporation
    Inventors: Carl E. Diener, Ashit A. Mehta, Ralph S. Paonessa, Eugene R. Skarvinko, David W. Wang
  • Gold plating bath additives for copper circuitization on polyimide printed circuit boards
    Patent number: 5176811
    Abstract: Disclosed is a method of fabricating a microelectronic package, especially a microelectronic package having gold plated copper circuitization on a polyimide substrate. The method includes the steps of forming a pattern of copper circuitization on the selected portions of the polyimide substrate, and thereafter depositing a gold thin film of selected portions of the copper circuitization layer. The gold thin film is electrodeposited from an electrodeposition solution of KAu(CN).sub.2, K.sub.2 HPO.sub.4, and KH.sub.2 PO.sub.4, modified by the addition of an effective amount of NH.sub.4.sup.+.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: January 5, 1993
    Assignee: International Business Machines Corporation
    Inventors: Leann G. Keim, Ralph S. Paonessa, Daniel C. Van Hart