Patents by Inventor Gero Kastner

Gero Kastner 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 for producing a photovoltaic solar cell
    Patent number: 9023682
    Abstract: A method for producing a photovoltaic solar cell, including the following steps: A. texturizing a front (2) of a semiconductor substrate; B. generating a selective emitter doping on the front (2) of the semiconductor substrate by generating on the front (2) a first low-doped region (4) and a local high-doped region (3) within the first low-doped region; and C. applying at least one metal emitter contact structure to the front (2) of the semiconductor substrate, at least in the regions of local high doping, wherein, between method steps B and C, a respective silicon oxide layer (5a, 5b) is generated in a method step B1 simultaneously on the front and back of the semiconductor substrate via thermal oxidation.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: May 5, 2015
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Sebastian Mack, Ulrich Jager, Andreas Wolf, Daniel Biro, Ralf Preu, Gero Kastner
  • METHOD FOR PRODUCING A PHOTOVOLTAIC SOLAR CELL
    Publication number: 20130095595
    Abstract: A method for producing a photovoltaic solar cell, including the following steps: A. texturizing a front (2) of a semiconductor substrate; B. generating a selective emitter doping on the front (2) of the semiconductor substrate by generating on the front (2) a first low-doped region (4) and a local high-doped region (3) within the first low-doped region; and C. applying at least one metal emitter contact structure to the front (2) of the semiconductor substrate, at least in the regions of local high doping, wherein, between method steps B and C, a respective silicon oxide layer (5a, 5b) is generated in a method step B1 simultaneously on the front and back of the semiconductor substrate via thermal oxidation.
    Type: Application
    Filed: June 16, 2011
    Publication date: April 18, 2013
    Applicant: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Sebastian Mack, Ulrich Jager, Andreas Wolf, Daniel Biro, Ralf Preu, Gero Kastner