Patents by Inventor Mark M. B. Holl

Mark M. B. Holl 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: 5395650
    Abstract: Gold can be selectively deposited onto a catalytically-activated region on a surface of a workpiece in the presence of a catalytically-inactive region on the surface by a chemical vapor deposition method. The method involves placing the workpiece in a vacuum chamber and evacuating the vacuum chamber to a base pressure equal to or less than a catalyst-activity-preserving upper pressure limit to eliminate effectively gaseous catalyst-deactivating contaminants from the chamber. The surface composition of at least one region of a target surface of the workpiece is altered to produce a catalytically-activated region on the target surface. At least one region of the target surface disjoint from the catalytically-activated region is a catalytically-inactive region. A gaseous alkylated (trialkylphosphine)gold compound is introduced into the vacuum chamber to expose the target surface of the workpiece to the compound.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: March 7, 1995
    Assignee: International Business Machines Corporation
    Inventors: Mark M. B. Holl, Steven P. Kowalczyk, Fenton R. McFeely, Paul F. Seidler