Patents by Inventor Roy D. Jaworski

Roy D. Jaworski 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: 4963393
    Abstract: Backside growth on substrates in a vapor deposition system has been a problem resulting in cracking of the material deposited on the substrate, making replication in a vapor deposition system difficult to achieve, and requiring post deposition machining to separate the substrate-deposit from the deposition fixture. A solution to the problem is the following: the substrate is mounted on a plurality of graphite pillars, with the pillars being bonded to the substrate as near the periphery thereof as possible. A hollow body open on one side but closed on the other, and fabricated from GRAFOIL with graphite cement used as a bonding agent, is mounted on the pillars with the open end facing the substrate. The open end of the body is pressed against the substrate and sealed with a bonding agent. This completely covers the backside of the substrate and thus prevents any vapor deposition thereon.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: October 16, 1990
    Assignee: CVD Incorporated
    Inventors: Jitendra S. Goela, Roy D. Jaworski, Raymond L. Taylor