Patents by Inventor Ronald J. McDonald

Ronald J. 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).

  • Input/output (I/O) thin film repair process
    Patent number: 5397607
    Abstract: Missing thin film metallurgy on substrates is replaced during the manufacture of thin film electronic circuits. The process allows the missing thin film metallurgy, such as an input/output (I/O) pad or pads, to be replaced quickly and simply, without damaging the other I/O pads or thin film metallurgy already applied to the substrate. The process essentially uses lift-off technology without building a complete lift-off stencil.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: March 14, 1995
    Assignee: International Business Machines Corporation
    Inventors: Ronald R. Shields, Kurt A. Smith, Ronald J. McDonald