Patents by Inventor Patrick Zunino

Patrick Zunino 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).

  • Method for characterizing the oxygen contents of Czochralski grown silicon rods
    Patent number: 4344815
    Abstract: The oxygen content of Czochralski grown silicon rods is characterized by annealing portions of the rods at selected times and temperatures and measuring the resistivity shift which is then related to the oxygen content of that portion of the rod. The rod can be selected for use in unipolar or bipolar device manufacture prior to cutting the rod into wafers.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: August 17, 1982
    Assignee: International Business Machines Corporation
    Inventors: Victor Cazarra, Andre Schwab, Patrick Zunino