Patents by Inventor Robert Lee Baker

Robert Lee Baker 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).

  • Chuck for use in the testing of semiconductor wafers
    Patent number: 4104589
    Abstract: A chuck for use in the testing of semiconductor wafers comprising first and second pluralities of electrically conductive members alternately arranged to provide a wafer receiving surface. The members are substantially completely electrically isolated from each other. Electric power leads and measurement sensing leads are provided to the first plurality of conductive members and the second plurality of conductive members respectively.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: August 1, 1978
    Assignee: RCA Corporation
    Inventors: Robert Lee Baker, Calvin Michael Mahoski, John David Partilla, Harold Robert Ronan, Jr.