Patents by Inventor Herber Weidner

Herber Weidner 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).

  • Apparatus for producing a single crystal
    Patent number: 5567399
    Abstract: Apparatus for producing a single crystal of semiconductor material in accance with the Czochralski method, has a cooling means which cools the growing single crystal and is constructed in two parts, The first is an upper part duct system through which a liquid coolant flows. The second is a lower part which is a heat-conducting cooling body.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: October 22, 1996
    Assignee: Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
    Inventors: Wilfried Von Ammon, Erich Dornberger, Herber Weidner, Alfred Pardubitzki