Patents by Inventor Christof Landesberger

Christof Landesberger 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).

  • Patent number: 6328841
    Abstract: In a method of connecting a first and a second silicon wafer, the first silicon wafer is first provided with a polyimide layer on a main surface thereof. Subsequently, a plasma-induced reaction between the polyimide layer and water is performed. A plasma-induced reaction is also performed between a main surface of the second silicon wafer and chlorine. The main surface of the second silicon wafer is then subjected to a treatment with hydrolyzed triethoxysilylpropanamine. Following this, the surfaces of the two silicon wafers, which have been subjected to the plasma-induced reactions, are joined together so as connect the silicon wafers permanently.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: December 11, 2001
    Assignee: Fraunhofer-Gesellschaft zur Foerderungdder Angewandten Forschung, e.V.
    Inventors: Armin Klumpp, Christof Landesberger