Patents by Inventor Christian Leirer

Christian Leirer 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).

  • Publication number: 20150249181
    Abstract: The invention concerns an optoelectronic component comprising a layer structure with a light-active layer. In a first lateral region the light-active layer has a higher density of V-defects than in a second lateral region.
    Type: Application
    Filed: September 24, 2013
    Publication date: September 3, 2015
    Inventors: Christian Leirer, Tobias Meyer, Matthias Peter, Juergen Off, Joachim Hertkorn, Andreas Loeffler, Alexander Walter, Dario Schiavon
  • Publication number: 20140183594
    Abstract: A radiation-emitting semiconductor chip having a semiconductor layer sequence based on a nitride compound semiconductor material and having a pn junction includes a first protective layer having deliberately introduced crystal defects, a second protective layer having a higher doping than the first protective layer, wherein the first protective layer protects the semiconductor chip against electrostatic discharge pulses, an active zone that generates radiation disposed downstream of the first protective layer in a growth direction, wherein during operation of the semiconductor chip, a breakdown behavior of the semiconductor layer sequence in a reverse direction in regions having crystal defects differs from regions without crystal defects, and wherein in the event of electrostatic discharge pulses, electrical charge is dissipated in a homogeneously distributed manner via the regions having crystal defects.
    Type: Application
    Filed: April 26, 2012
    Publication date: July 3, 2014
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Andreas Löffler, Christian Leirer, Rainer Butendeich, Tobias Meyer, Matthias Peter
  • Publication number: 20140061694
    Abstract: A method for producing a thin-film semiconductor body is provided. A growth substrate is provided. A semiconductor layer with funnel-shaped and/or inverted pyramid-shaped recesses is epitaxially grown onto the growth substrate. The recesses are filled with a semiconductor material in such a way that pyramid-shaped outcoupling structures arise. A semiconductor layer sequence with an active layer is applied on the outcoupled structures. The active layer is suitable for generating electromagnetic radiation. A carrier is applied onto the semiconductor layer sequence. At least the semiconductor layer with the funnel-shaped and/or inverted pyramid-shaped recesses is detached, such that the pyramid-shaped outcoupling structures are configured as projections on a radiation exit face of the thin-film semiconductor body.
    Type: Application
    Filed: February 28, 2012
    Publication date: March 6, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Christian Leirer, Anton Vogl, Andreas Biebersdorf, Rainer Butendeich, Christian Rumbolz
  • Publication number: 20140057417
    Abstract: A method for producing an optoelectronic semiconductor chip is disclosed. A growth substrate is provided in an epitaxy installation. At least one intermediate layer is deposited by epitaxy on the growth substrate. A structured surface that faces away from the growth substrate is produced on the side of the intermediate layer facing away from the growth substrate. An active layer is deposited by epitaxy on the structured surface. The structured surface is produced in the epitaxy installation and the active layer follows the structuring of the structured surface at least in some regions in a conformal manner or at least in some sections essentially in a conformal manner.
    Type: Application
    Filed: February 15, 2012
    Publication date: February 27, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Christian Leirer, Anton Vogl, Andreas Biebersdorf, Joachim Hertkorn, Tetsuya Taki, Rainer Butendeich