Patents by Inventor Martin G. McDonald

Martin G. McDonald 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).

  • Low-bridging soldering process
    Patent number: 5390845
    Abstract: A process for wave soldering or reflow soldering comprises contacting substrates with a supply of molten solder containing from about 0.0001 to about 0.1% by weight of phosphorous in an atmosphere of diluent gas containing up to about 0.1% by volume oxygen. A reduced incidence of bridging and other soldering defects occurs.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: February 21, 1995
    Assignee: Praxair Technology, Inc.
    Inventor: Martin G. McDonald