Patents by Inventor Ivan K. Ho

Ivan K. Ho 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).

  • Selective and precise etching and plating of conductive substrates
    Patent number: 5202222
    Abstract: Method for selective and precise etching and plating of a conductive substrate through electrophoretic deposition of a photoresist composition. The invention enables chemical milling and plating of products useful in high performance applications such as lead frames with lead widths less than 1.0 mil and precisely plated lead faces.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: April 13, 1993
    Assignee: Shipley Company Inc.
    Inventors: Martin J. Harris, Ivan K. Ho