Patents by Inventor Mathias Rohde

Mathias Rohde 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: 9815262
    Abstract: The invention relates to a method of joining substrates. It is the object of the invention in this respect to join substrates of substrate materials together without having to exert an increased effort for a coating with additional coating processes to be carried out and to be able to achieve a good quality of the join connection in so doing. In the method in accordance with the invention a pretreatment of at least one join surface of a substrate to be joined is carried out in low pressure oxygen plasma prior to the actual joining. On the joining, a contact force acts on the substrates to be joined in the range 2 kPa to 5 MPa and in this process a heat treatment is carried out at an elevated temperature of at least 100° C. and at under pressure conditions of a maximum of 10 mbar, preferably <10?3 mbar.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: November 14, 2017
    Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Friedrich-Schiller-Universität Jena
    Inventors: Gerhard Kalkowski, Carolin Rothhardt, Mathias Rohde, Ramona Eberhardt
  • Publication number: 20140083597
    Abstract: The invention relates to a method of joining substrates. It is the object of the invention in this respect to join substrates of substrate materials together without having to exert an increased effort for a coating with additional coating processes to be carried out and to be able to achieve a good quality of the join connection in so doing. In the method in accordance with the invention a pretreatment of at least one join surface of a substrate to be joined is carried out in low pressure oxygen plasma prior to the actual joining. On the joining, a contact force acts on the substrates to be joined in the range 2 kPa to 5 MPa and in this process a heat treatment is carried out at an elevated temperature of at least 100° C. and at under pressure conditions of a maximum of 10 mbar, preferably <10?3 mbar.
    Type: Application
    Filed: February 21, 2012
    Publication date: March 27, 2014
    Applicants: Friedrich-Schiller-Universität Jena, FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V.
    Inventors: Gerhard Kalkowski, Carolin Rothhardt, Mathias Rohde, Ramona Eberhardt
  • Patent number: 7491946
    Abstract: The invention is directed to electrostatic deflection systems for corpuscular beams which can be used particularly in microstructured and nanostructured applications in lithography installations or measuring equipment. According to the proposed object of the invention, the individual electrodes of a deflection system of this kind should permanently have and retain a very exact axially symmetric arrangement relative to one another. In the electrostatic deflection system according to the invention, rod-shaped electrodes are held in an axially symmetric arrangement in an inwardly hollow carrier through which a corpuscular beam can be directed. The carrier is formed of at least two, and at most four, carrier members which are connected to one another.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 17, 2009
    Assignee: Leica Microsystems Lithography GmbH
    Inventors: Stefan Risse, Thomas Peschel, Christoph Damm, Andreas Gebhardt, Mathias Rohde, Christoph Schenk, Thomas Elster, Hans-Joachim Doering, Gerhard Schubert
  • Publication number: 20060192133
    Abstract: The invention is directed to electrostatic deflection systems for corpuscular beams which can be used particularly in microstructured and nanostructured applications in lithography installations or measuring equipment. According to the proposed object of the invention, the individual electrodes of a deflection system of this kind should permanently have and retain a very exact axially symmetric arrangement relative to one another. In the electrostatic deflection system according to the invention, rod-shaped electrodes are held in an axially symmetric arrangement in an inwardly hollow carrier through which a corpuscular beam can be directed. The carrier is formed of at least two, and at most four, carrier members which are connected to one another.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 31, 2006
    Inventors: Stefan Risse, Thomas Peschel, Christoph Damm, Andreas Gebhardt, Mathias Rohde, Christoph Schenk, Thomas Elster, Hans-Joachim Doering, Gerhard Schubert