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: 20180145235
    Abstract: An optoelectronic semiconductor component comprises an optoelectronic semiconductor chip (C1) having an electrically conductive substrate (T), an active part (AT) containing epitaxially grown layers, and an intermediate layer (ZS) which is arranged between the substrate (T) and the active part (AT) and contains a solder material. The optoelectronic semiconductor component further comprises an electrical connection point, which at least partially covers an underside of the substrate (T), wherein the electrical connection point comprises a first contact layer (KS1) on a side facing the substrate (T), and the first contact layer (KS1) contains aluminium or consists of aluminium.
    Type: Application
    Filed: May 12, 2016
    Publication date: May 24, 2018
    Inventors: Korbinian PERZLMAIER, Stefanie RAMMELSBERGER, Anna KASPRZAK-ZABLOCKA, Julian IKONOMOV, Christian LEIRER
  • Patent number: 9972748
    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.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 15, 2018
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Christian Leirer, Anton Vogl, Andreas Biebersdorf, Rainer Butendeich, Christian Rumbolz
  • Publication number: 20180097156
    Abstract: An optoelectronic lighting device and a method for manufacturing an optoelectronic lighting device are disclosed. In an embodiment the device includes a carrier and a light-emitting diode arranged on the carrier having a light-emitting surface. The device further includes a microlens structure including a plurality of microlenses, wherein the microlens structure is arranged on the light-emitting surface of the diode and a conversion layer arranged on the microlens structure, wherein the light-emitting surface is configured to emit light, wherein the microlens structure images, at least in part, the light, and wherein the conversion layer converts the light.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 5, 2018
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Leirer, Alexander Linkov, Matthias Sperl, Matthias Kiessling
  • Patent number: 9853018
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence. The semiconductor layer sequence includes a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type, and an active zone having a p-n junction, which active zone is formed between the first semiconductor region and the second semiconductor region. The semiconductor layer sequence is arranged on a carrier. The semiconductor chip also includes a first contact, which is provided for electrically connecting the first semiconductor region, and a second contact, which is different from the first contact and which is provided for electrically connecting the second semiconductor region. In addition, the semiconductor chip includes a first capacitive electrical element, which is connected in parallel with the p-n junction and which has a first dielectric element.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: December 26, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Leirer, Berthold Hahn, Roland Zeisel, Johannes Baur, Karl Engl
  • Patent number: 9761758
    Abstract: An optoelectronic semiconductor component includes a layer sequence including a p-doped layer, an n-doped layer and an active zone that generates electromagnetic radiation arranged between the n-doped layer and the p-doped layer, wherein the n-doped layer includes at least GaN, an interlayer is arranged in the n-doped layer, wherein the interlayer includes AlxGa1-xN, wherein 0<x?1, and the interlayer includes magnesium.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: September 12, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Tobias Meyer, Matthias Peter, Jürgen Off, Alexander Walter, Tobias Gotschke, Christian Leirer
  • Patent number: 9728674
    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: Grant
    Filed: October 4, 2016
    Date of Patent: August 8, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Leirer, Tobias Meyer, Matthias Peter, Juergen Off, Joachim Hertkorn, Andreas Loeffler, Alexander Walter, Dario Schiavon
  • Patent number: 9680052
    Abstract: An optoelectronic component includes a semiconductor layer structure having a quantum film structure, and a p-doped layer arranged above the quantum film structure, wherein the p-doped layer includes at least one first partial layer and a second partial layer, and the second partial layer has a higher degree of doping than the first partial layer.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: June 13, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Andreas Löffler, Tobias Meyer, Adam Bauer, Christian Leirer
  • Publication number: 20170125643
    Abstract: A light emitting semiconductor device includes at least one light emitting semiconductor chip having a semiconductor layer sequence, a light outcoupling surface, a rear face on an opposite side of the semiconductor layer sequence from the light outcoupling surface, and side faces which connect the light outcoupling surface and the rear face. The light emitting semiconductor device further includes a carrier body, having a molded body which covers the side faces of the at least one light emitting semiconductor chip directly and in a positively-locking manner. The carrier body comprises, at the light outcoupling surface of the at least one light emitting semiconductor chip, a top face on which a dielectric mirror is disposed. At least part of the light outcoupling surface is uncovered by the dielectric mirror.
    Type: Application
    Filed: June 1, 2015
    Publication date: May 4, 2017
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Leirer, Markus Maute
  • Patent number: 9620673
    Abstract: An optoelectronic device includes a carrier on which a semiconductor layer sequence is applied, said semiconductor layer sequence including an n-doped semiconductor layer and a p-doped semiconductor layer such that a p-n junction is formed which includes an active zone that generates electromagnetic radiation, wherein at least one of the n-doped semiconductor layer and the p-doped semiconductor layer includes a doped region having a first doping concentration greater than a second doping concentration in a surrounding area of the region in the semiconductor layer including the region.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: April 11, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Tobias Meyer, Christian Leirer, Lorenzo Zini, Jürgen Off, Andreas Löffler, Adam Bauer
  • Publication number: 20170025569
    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: October 4, 2016
    Publication date: January 26, 2017
    Inventors: Christian LEIRER, Tobias MEYER, Matthias PETER, Juergen OFF, Joachim HERTKORN, Andreas LOEFFLER, Alexander WALTER, Dario SCHIAVON
  • Patent number: 9502611
    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: Grant
    Filed: September 24, 2013
    Date of Patent: November 22, 2016
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Christian Leirer, Tobias Meyer, Matthias Peter, Juergen Off, Joachim Hertkorn, Andreas Loeffler, Alexander Walter, Dario Schiavon
  • Publication number: 20160300829
    Abstract: Described is an optoelectronic semiconductor chip (1) with a built-in bridging element (9, 9A) for overvoltage protection.
    Type: Application
    Filed: November 7, 2014
    Publication date: October 13, 2016
    Inventors: Christian LEIRER, Berthold HAHN, Karl ENGL, Johannes BAUR, Siegfried HERRMANN, Andreas PLOESSL, Simeon KATZ, Tobias MEYER, Lorenzo ZINI, Markus MAUTE
  • Publication number: 20160225749
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence. The semiconductor layer sequence includes a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type, and an active zone having a p-n junction, which active zone is formed between the first semiconductor region and the second semiconductor region. The semiconductor layer sequence is arranged on a carrier. The semiconductor chip also includes a first contact, which is provided for electrically connecting the first semiconductor region, and a second contact, which is different from the first contact and which is provided for electrically connecting the second semiconductor region. In addition, the semiconductor chip includes a first capacitive electrical element, which is connected in parallel with the p-n junction and which has a first dielectric element.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 4, 2016
    Inventors: Christian Leirer, Berthold Hahn, Roland Zeisel, Johannes Baur, Karl Engl
  • Publication number: 20160079476
    Abstract: An optoelectronic semiconductor component includes a layer sequence including a p-doped layer, an n-doped layer and an active zone that generates electromagnetic radiation arranged between the n-doped layer and the p-doped layer, wherein the n-doped layer includes at least GaN, an interlayer is arranged in the n-doped layer, wherein the interlayer includes AlxGa1-xN, wherein 0<x?1, and the interlayer includes magnesium.
    Type: Application
    Filed: April 17, 2014
    Publication date: March 17, 2016
    Inventors: Tobias Meyer, Matthias Peter, Jürgen Off, Alexander Walter, Tobias Gotschke, Christian Leirer
  • Publication number: 20160079470
    Abstract: An optoelectronic component includes a semiconductor layer structure having a quantum film structure, and a p-doped layer arranged above the quantum film structure, wherein the p-doped layer includes at least one first partial layer and a second partial layer, and the second partial layer has a higher degree of doping than the first partial layer.
    Type: Application
    Filed: April 23, 2014
    Publication date: March 17, 2016
    Inventors: Andreas Löffler, Tobias Meyer, Adam Bauer, Christian Leirer
  • Publication number: 20160056326
    Abstract: A method for producing an optoelectronic semiconductor chip is disclosed. A substrate is provided and a first layer is grown. An etching process is carrying out to initiate V-defects. A second layer is grown and a quantum film structure is grown. An optoelectronic semiconductor chip is also disclosed. The method can be used to produce the optoelectronic semiconductor chip.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 25, 2016
    Inventors: Andreas Löffler, Tobias Meyer, Adam Bauer, Christian Leirer
  • Publication number: 20160049543
    Abstract: An optoelectronic device includes a carrier on which a semiconductor layer sequence is applied, said semiconductor layer sequence including an n-doped semiconductor layer and a p-doped semiconductor layer such that a p-n junction is formed which includes an active zone that generates electromagnetic radiation, wherein at least one of the n-doped semiconductor layer and the p-doped semiconductor layer includes a doped region having a first doping concentration greater than a second doping concentration in a surrounding area of the region in the semiconductor layer including the region.
    Type: Application
    Filed: March 24, 2014
    Publication date: February 18, 2016
    Inventors: Tobias Meyer, Christian Leirer, Lorenzo Zini, Jürgen Off, Andreas Löffler, Adam Bauer
  • Publication number: 20160049550
    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.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: Christian Leirer, Anton Vogl, Andreas Biebersdorf, Rainer Butendeich, Christian Rumbolz
  • Patent number: 9202978
    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: Grant
    Filed: April 26, 2012
    Date of Patent: December 1, 2015
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Andreas Löffler, Christian Leirer, Rainer Butendeich, Tobias Meyer, Matthias Peter
  • Patent number: 9202967
    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: Grant
    Filed: February 28, 2012
    Date of Patent: December 1, 2015
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Christian Leirer, Anton Vogl, Andreas Biebersdorf, Rainer Butendeich, Christian Rumbolz