Patents by Inventor Franz Mangs

Franz Mangs 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).

  • Publication number: 20020187639
    Abstract: A process is provided for treating a polished semiconductor wafer immediately after the semiconductor wafer has been polished. The semiconductor wafer is brought into contact with an aqueous treatment agent solution and its polished surface is oxidized by the action of the aqueous treatment agent solution.
    Type: Application
    Filed: February 27, 1998
    Publication date: December 12, 2002
    Inventors: HEINRICH HENNHOFER, THOMAS BUSCHHARDT, FRANZ MANGS, GERLINDE WENSAUER
  • Patent number: 6171385
    Abstract: A method of mounting and demounting a semiconductor wafer, in which a temperature dependent adhesive and curable joint is provided by an adhesive mixture between the semiconductor wafer and a carrier plate. The adhesive mixture contains a colophonium resin which is chemically modified and esterified. The cured joint is released with water again after polishing the semiconductor wafer. The adhesive mixture suitable for carrying out the method is this resin with an amine which saponifies the resin.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: January 9, 2001
    Assignee: Wacker Siltronic Gesellschaft f{umlaut over (u)}r Halbleitermaterialien AG
    Inventors: Robert Rurlaender, Norbert Franze, Franz Mangs, Anton Schnegg
  • Patent number: 5980361
    Abstract: A method is for the polishing of semiconductor wafers, which are mounted on a front side of a support plate and one side face of which is pressed anst a polishing plate, which is covered with a polishing cloth, with a specific polishing pressure and polished. A device is provided which is suitable for carrying out the method. The method includes a) applying a specific pressure to at least one of a plurality of pressure chambers prior to the polishing of the semiconductor wafers, and b) during the polishing of the semiconductor wafers, transmitting the polishing pressure to a rear side of the support plate via elastic bearing surfaces of the pressure chambers to which pressure has been applied.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: November 9, 1999
    Assignee: Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
    Inventors: Paul Muller, Thomas Buschhardt, Heinrich Hennhofer, Norbert Sickmann, Rainer Neumann, Franz Mangs, Manfred Thurner, Klaus Rottger