Patents by Inventor Hermann Dumm

Hermann Dumm 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).

  • Process for machining a wafer-like workpiece
    Patent number: 6811473
    Abstract: A process for machining a wafer-like workpiece between two plates, in which material is abraded from the workpiece under the influence of an auxiliary substance supplied and of a pressure acting on the workpiece. In this process, the pressure on the workpiece is significantly reduced and then increased again at least once during the machining of the workpiece, and the supply of the auxiliary substance is reduced as the pressure is increased.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: November 2, 2004
    Assignee: Siltronic AG Corporate Intellectual Property
    Inventors: Timon Heimes, Hermann Dumm
  • Process for machining a wafer-like workpiece
    Publication number: 20040043709
    Abstract: A process for machining a wafer-like workpiece between two plates, in which material is abraded from the workpiece under the influence of an auxiliary substance supplied and of a weight acting on the workpiece. In this process, the load on the workpiece from the weight is significantly reduced and then increased again at least once during the machining of the workpiece, and the supply of the auxiliary substance is reduced as the weight is increased.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 4, 2004
    Applicant: Wacker Siltronic AG
    Inventors: Timon Heimes, Hermann Dumm