Patents by Inventor Wilhelm Schmidbauer

Wilhelm Schmidbauer 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 producing a semiconductor material
    Patent number: 6309467
    Abstract: Semiconductor material has a low metal concentration at the surface. The semiconductor material has an iron content and/or chromium content on the surface of less than 6.66×10−11 g/cm2. A method for producing this semiconductor material includes a preliminary cleaning, a main cleaning and hydrophilization. A device for use in this method has a container with pyramid-shaped recesses at the bottom.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: October 30, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Hanns Wochner, Theresia Bauer, Josef Dietl, Werner Ott, Herbert Pichler, Wilhelm Schmidbauer, Dieter Seifert, Susanne Weizbauer
  • Vacuum drying of semiconductor fragments
    Patent number: 6170171
    Abstract: A method and apparatus for drying semiconductor fragment material, has at least one vacuum-tight chamber with at least one receiving means for semiconductor fragment material, and there is a means for maintaining a vacuum in the apparatus.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: January 9, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Wilhelm Schmidbauer, Hanns Wochner, Werner Ott