Patents by Inventor Christian Rumbolz

Christian Rumbolz 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: 11476389
    Abstract: The invention relates to a method for producing an optoelectronic semiconductor chip comprising the following steps: providing a semiconductor body (1) having a radiation-permeable surface (1a), and introducing structures (2) into the semiconductor body (1) on the radiation-permeable surface (1a), wherein the structures (2) are quasi-regular.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: October 18, 2022
    Assignee: OSRAM OLED GmbH
    Inventors: Michael Huber, Jana Sommerfeld, Martin Herz, Sebastian Hoibl, Christian Rumbolz, Albrecht Kieslich, Bernd Boehm, Georg Rossbach, Markus Broell
  • Publication number: 20210126163
    Abstract: The invention relates to a method for producing an optoelectronic semiconductor chip comprising the following steps: providing a semiconductor body (1) having a radiation-permeable surface (1a), and introducing structures (2) into the semiconductor body (1) on the radiation-permeable surface (1a), wherein the structures (2) are quasi-regular.
    Type: Application
    Filed: September 3, 2018
    Publication date: April 29, 2021
    Inventors: Michael Huber, Jana Sommerfeld, Martin Herz, Sebastian Hoibl, Christian Rumbolz, Albrecht Kieslich, Bernd Boehm, Georg Rossbach, Markus Broell
  • Patent number: 10615572
    Abstract: A semiconductor laser diode is disclosed. In an embodiment a semiconductor laser diode includes a semiconductor layer sequence having at least one active layer and a ridge waveguide structure having a ridge extending in a longitudinal direction from a light output surface to a rear side surface and being delimited by ridge side surfaces in a lateral direction perpendicular to a longitudinal direction, wherein the ridge has a first region and a second region adjacent thereto in a vertical direction perpendicular to the longitudinal and lateral directions, wherein the ridge includes a first semiconductor material in the first region and at least one second semiconductor material different from the first semiconductor material in the second region, wherein the ridge has a first width in the first region, and wherein the ridge has a second width in the second region, the second width being larger than the first width.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: April 7, 2020
    Assignee: OSRAM OLED GMBH
    Inventors: Sven Gerhard, Christoph Eichler, Christian Rumbolz
  • Patent number: 10312664
    Abstract: A method for patterning a sequence of layers and a semiconductor laser device are disclosed. In an embodiment the method creates at least one trench in the sequence of layers by two plasma etching methods. The semiconductor laser device comprises a sequence of layers including a semiconductor material and two trenches in the sequence of layers. The trenches laterally delimit a ridge waveguide. Each of the trenches is delimited on the side facing away from the ridge waveguide by a region of the sequence of layers.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: June 4, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Rumbolz, Sven Gerhard
  • Patent number: 10290997
    Abstract: A method of producing an electronic component includes providing a surface comprising a first region and a second region adjoining the first region, arranging a sacrificial layer above the first region of the surface, arranging a passivation layer above the sacrificial layer and the second region of the surface, creating an opening in the passivation layer above the first region of the surface, wherein the opening in the passivation layer is created with an opening area that is smaller than the first region, and removing the sacrificial layer and the portions of the passivation layer that are arranged above the first region.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: May 14, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Jens Mueller, Christoph Stephan, Robert Walter, Stefan Hartauer, Christian Rumbolz
  • Publication number: 20190052055
    Abstract: A semiconductor laser diode is disclosed. In an embodiment a semiconductor laser diode includes a semiconductor layer sequence having at least one active layer and a ridge waveguide structure having a ridge extending in a longitudinal direction from a light output surface to a rear side surface and being delimited by ridge side surfaces in a lateral direction perpendicular to a longitudinal direction, wherein the ridge has a first region and a second region adjacent thereto in a vertical direction perpendicular to the longitudinal and lateral directions, wherein the ridge includes a first semiconductor material in the first region and at least one second semiconductor material different from the first semiconductor material in the second region, wherein the ridge has a first width in the first region, and wherein the ridge has a second width in the second region, the second width being larger than the first width.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 14, 2019
    Inventors: Sven Gerhard, Christoph Eichler, Christian Rumbolz
  • 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: 20180048122
    Abstract: A method of producing an electronic component includes providing a surface comprising a first region and a second region adjoining the first region, arranging a sacrificial layer above the first region of the surface, arranging a passivation layer above the sacrificial layer and the second region of the surface, creating an opening in the passivation layer above the first region of the surface, wherein the opening in the passivation layer is created with an opening area that is smaller than the first region, and removing the sacrificial layer and the portions of the passivation layer that are arranged above the first region.
    Type: Application
    Filed: February 18, 2016
    Publication date: February 15, 2018
    Inventors: Jens Mueller, Christoph Stephan, Robert Walter, Stefan Hartauer, Christian Rumbolz
  • Publication number: 20170302058
    Abstract: A method for patterning a sequence of layers and a semiconductor laser device are disclosed. In an embodiment the method creates at least one trench in the sequence of layers by two plasma etching methods. The semiconductor laser device comprises a sequence of layers including a semiconductor material and two trenches in the sequence of layers. The trenches laterally delimit a ridge waveguide. Each of the trenches is delimited on the side facing away from the ridge waveguide by a region of the sequence of layers.
    Type: Application
    Filed: September 21, 2015
    Publication date: October 19, 2017
    Inventors: Christian Rumbolz, Sven Gerhard
  • 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: 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
  • Patent number: 8995490
    Abstract: An edge-emitting semiconductor laser diode includes an epitactic semiconductor layer stack and a planarization layer. The semiconductor layer stack includes a main body and a ridge waveguide. The main body includes an active layer for generating electromagnetic radiation. The planarization layer embeds the ridge waveguide such that a surface of the ridge waveguide and a surface of the planarization layer form a flat main surface. A method for producing such a semiconductor laser diode is also disclosed.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 31, 2015
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Alfred Lell, Christoph Nelz, Christian Rumbolz, Stefan Hartauer
  • 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: 20130230068
    Abstract: An edge-emitting semiconductor laser diode includes an epitactic semiconductor layer stack and a planarization layer. The semiconductor layer stack includes a main body and a ridge waveguide. The main body includes an active layer for generating electromagnetic radiation. The planarization layer embeds the ridge waveguide such that a surface of the ridge waveguide and a surface of the planarization layer form a flat main surface. A method for producing such a semiconductor laser diode is also disclosed.
    Type: Application
    Filed: September 7, 2011
    Publication date: September 5, 2013
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Alfred Lell, Christoph Nelz, Christian Rumbolz, Stefan Hartauer
  • Patent number: 8340146
    Abstract: The invention relates to a radiation-emitting semiconductor chip, comprising an active zone for generating radiation having a wavelength lambda and a structured region having irregularly arranged structure elements which contain a first material having a first refractive index n1 and which are surrounded by a medium comprising a second material having a second refractive index n2. A method for producing a semiconductor chip of this type is furthermore specified.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: December 25, 2012
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Alfred Lell, Christoph Eichler, Christian Rumbolz
  • Patent number: 8268659
    Abstract: A method for manufacturing an edge emitting semiconductor laser chip, which has a carrier substrate, an interlayer arranged between the carrier substrate and a component structure of the edge emitting semiconductor laser chip. The interlayer is adapted to provide adhesion between the carrier substrate and the component structure. The component structure has an active zone provided for generating radiation.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 18, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Christoph Eichler, Volker Härle, Christian Rumbolz, Uwe Strauss
  • Publication number: 20110177634
    Abstract: A method for manufacturing an edge emitting semiconductor laser chip, which has a carrier substrate, an interlayer arranged between the carrier substrate and a component structure of the edge emitting semiconductor laser chip. The interlayer is adapted to provide adhesion between the carrier substrate and the component structure. The component structure has an active zone provided for generating radiation.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 21, 2011
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Christoph EICHLER, Volker HÄRLE, Christian RUMBOLZ, Uwe STRAUSS
  • Patent number: 7885306
    Abstract: What is specified is an edge emitting semiconductor laser chip comprising a carrier substrate (1), an interlayer (2) promoting adhesion between the carrier substrate (1) and a component structure (50) of the edge emitting semiconductor laser chip, and the component structure (50) comprising an active zone (5) provided for generating radiation.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: February 8, 2011
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Christoph Eichler, Volker Härle, Christian Rumbolz, Uwe Strauss
  • Publication number: 20100278203
    Abstract: The invention relates to a radiation-emitting semiconductor chip, comprising an active zone for generating radiation having a wavelength lambda and a structured region having irregularly arranged structure elements which contain a first material having a first refractive index n1 and which are surrounded by a medium comprising a second material having a second refractive index n2. A method for producing a semiconductor chip of this type is furthermore specified.
    Type: Application
    Filed: August 27, 2008
    Publication date: November 4, 2010
    Inventors: Alfred Lell, Christoph Eichler, Christian Rumbolz
  • Publication number: 20080089374
    Abstract: A semiconductor laser comprising a semiconductor layer sequence (2) comprising an active zone (3) for generating electromagnetic radiation, and an absorber zone for attenuating higher modes. The absorber zone is arranged within the semiconductor layer sequence (2) or adjoins the semiconductor layer sequence (2).
    Type: Application
    Filed: October 1, 2007
    Publication date: April 17, 2008
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Christoph Eichler, Alfred Lell, Christian Rumbolz