Patents by Inventor Walter Francis Reichert

Walter Francis Reichert 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: 3993515
    Abstract: Raised electrical contacts are electroplated on selected previously metallized contacts of a semiconductor device. Each metallized contact is on a surface of a separate mesa, respectively, of the device and extends in a cantilever manner beyond the surface of the mesa. The electroplating of the raised electrical contacts is accomplished by the steps of (1) depositing a layer of a metal over the device, (2) applying a photoresist over the layer of the metal, (3) defining openings in the photoresist over areas of the metallized contacts where the raised contacts are to be formed, and (4) electroplating the raised contacts on the metallized contacts through the openings, using the layer of the metal as an electrode in an electroplating system.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: November 23, 1976
    Assignee: RCA Corporation
    Inventor: Walter Francis Reichert