Patents by Inventor Albrecht Schwille

Albrecht Schwille 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 of producing structured wafers
    Patent number: 6723250
    Abstract: A method of producing structured wafers guarantees that the edge of the wafer will be protected from attack by an aggressive etchant medium without applying a photoresist to the edge and without using additional mechanical measures. In a type of negative process, a passivation layer is applied to the areas that are not to be structured, including the edge area of the wafer.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: April 20, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Schaefer, Peter Linke, Albrecht Schwille, Helmut Baumann