Patents by Inventor Michael G. Firmstone

Michael G. Firmstone 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).

  • Seed layer compositions containing organogold and organosilver compounds
    Patent number: 5059242
    Abstract: A fluid composition for producing a gold seed layer on a substrate for an electrical circuit, which comprises an organogold and an organosliver compound present as 0.5 to 10 parts by weight silver per 100 parts by weight gold. In preferred compositions the silver is present as 0.8 to 6 parts by weight per 100 parts gold. The process improves seed layer to substrate adhesion.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: October 22, 1991
    Inventors: Michael G. Firmstone, Andrew Lindley