Patents by Inventor Stefanie Rammelsberger

Stefanie Rammelsberger 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: 10340430
    Abstract: An optoelectronic lamp device includes an optoelectronic semiconductor component including a top side including a light-emitting face, and a housing embedding the semiconductor component and leaving free the light-emitting face, wherein a housing face is coated with a light-scattering dielectric resist layer that may scatter light incident on a face of the resist layer facing away from the housing face.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 2, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Leirer, Björn Hoxhold, Stefanie Rammelsberger
  • Patent number: 10290784
    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: Grant
    Filed: May 12, 2016
    Date of Patent: May 14, 2019
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Korbinian Perzlmaier, Stefanie Rammelsberger, Anna Kasprzak-Zablocka, Julian Ikonomov, Christian Leirer
  • Patent number: 10283686
    Abstract: An optoelectronic semiconductor component includes an optoelectronic semiconductor chip; and an electrical connection point that contacts the optoelectronic semiconductor chip, wherein the electrical connection point covers the optoelectronic semiconductor chip on the bottom thereof at least in some areas, the electrical connection point includes a contact layer facing toward the optoelectronic semiconductor chip, the electrical connection point includes at least one barrier layer arranged on a side of the contact layer facing away from the optoelectronic semiconductor chip, the electrical connection point includes a protective layer arranged on the side of the at least one barrier layer facing away from the contact layer, the layers of the electrical connection point are arranged one on top of another along a stack direction, and the stack direction runs perpendicular to a main extension plane of the optoelectronic semiconductor chip.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 7, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Korbinian Perzlmaier, Anna Kasprzak-Zablocka, Stefanie Rammelsberger, Julian Ikonomov
  • Patent number: 10164143
    Abstract: An optoelectronic semiconductor chip has a semiconductor body and a substrate on which the semiconductor body is disposed. The semiconductor body has an active region disposed between a first semiconductor layer of a first conductor type and a second semiconductor layer of a second conductor type. The first semiconductor layer is disposed on the side of the active region facing the substrate. The first semiconductor layer is electrically conductively connected to a first termination layer that is disposed between the substrate and the semiconductor body. An encapsulation layer is disposed between the first termination layer and the substrate and, in plan view of the semiconductor chip, projects at least in some regions over a side face which delimits the semiconductor body.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: December 25, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Karl Engl, Markus Maute, Stefanie Rammelsberger, Anna Kasprzak-Zablocka
  • Patent number: 10043958
    Abstract: A light emitting diode chip includes a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side and a mirror layer at least in regions at a rear side situated opposite the radiation exit area, a protective layer is arranged on the mirror layer, the protective layer includes a transparent conductive oxide, the mirror layer adjoins the semiconductor layer sequence at an interface situated opposite the protective layer, first and second layers, the first and second electrical connection layers face the rear side of the semiconductor layer sequence and are electrically insulated from one another, and a partial region of the second electrical connection layer extends from the rear side of the semiconductor layer sequence through at least one perforation of the active layer in a direction toward the front side.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 7, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Korbinian Perzlmaier, Kai Gehrke, Robert Walter, Karl Engl, Guido Weiss, Markus Maute, Stefanie Rammelsberger
  • Publication number: 20180198044
    Abstract: An optoelectronic lamp device includes an optoelectronic semiconductor component including a top side including a light-emitting face, and a housing embedding the semiconductor component and leaving free the light-emitting face, wherein a housing face is coated with a light-scattering dielectric resist layer that may scatter light incident on a face of the resist layer facing away from the housing face.
    Type: Application
    Filed: June 27, 2016
    Publication date: July 12, 2018
    Inventors: Christian Leirer, Björn Hoxhold, Stefanie Rammelsberger
  • Patent number: 10008649
    Abstract: A light emitting diode chip includes a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side and a mirror layer at least in regions at a rear side situated opposite the radiation exit area, a protective layer is arranged on the mirror layer, the protective layer includes a transparent conductive oxide, the mirror layer adjoins the semiconductor layer sequence at an interface situated opposite the protective layer, first and second layers, the first and second electrical connection layers face the rear side of the semiconductor layer sequence and are electrically insulated from one another, and a partial region of the second electrical connection layer extends from the rear side of the semiconductor layer sequence through at least one perforation of the active layer in a direction toward the front side.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: June 26, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Korbinian Perzlmaier, Kai Gehrke, Robert Walter, Karl Engl, Guido Weiss, Markus Maute, Stefanie Rammelsberger
  • 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
  • Publication number: 20180013043
    Abstract: An optoelectronic semiconductor component includes an optoelectronic semiconductor chip; and an electrical connection point that contacts the optoelectronic semiconductor chip, wherein the electrical connection point covers the optoelectronic semiconductor chip on the bottom thereof at least in some areas, the electrical connection point includes a contact layer facing toward the optoelectronic semiconductor chip, the electrical connection point includes at least one barrier layer arranged on a side of the contact layer facing away from the optoelectronic semiconductor chip, the electrical connection point includes a protective layer arranged on the side of the at least one barrier layer facing away from the contact layer, the layers of the electrical connection point are arranged one on top of another along a stack direction, and the stack direction runs perpendicular to a main extension plane of the optoelectronic semiconductor chip.
    Type: Application
    Filed: January 11, 2016
    Publication date: January 11, 2018
    Inventors: Korbinian Perlmaier, Anna Kasprzak-Zablocka, Stefanie Rammelsberger, Julian Ikonomov
  • Publication number: 20170324000
    Abstract: An optoelectronic semiconductor chip has a semiconductor body and a substrate on which the semiconductor body is disposed. The semiconductor body has an active region disposed between a first semiconductor layer of a first conductor type and a second semiconductor layer of a second conductor type. The first semiconductor layer is disposed on the side of the active region facing the substrate. The first semiconductor layer is electrically conductively connected to a first termination layer that is disposed between the substrate and the semiconductor body. An encapsulation layer is disposed between the first termination layer and the substrate and, in plan view of the semiconductor chip, projects at least in some regions over a side face which delimits the semiconductor body.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 9, 2017
    Inventors: Karl Engl, Markus Maute, Stefanie Rammelsberger, Anna Kasprzak-Zablocka
  • Patent number: 9761770
    Abstract: An optoelectronic semiconductor chip includes a semiconductor body with an active region provided for generating electromagnetic radiation, a first mirror layer provided for reflecting the electromagnetic radiation, a first encapsulation layer formed with an electrically insulating material, and a carrier provided for mechanically supporting the first encapsulation layer, the first mirror layer and the semiconductor body. The first mirror layer is arranged between the carrier and the semiconductor body. The first encapsulation layer is arranged between the carrier and the first mirror layer. The first encapsulation layer is an ALD layer.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: September 12, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Johann Eibl, Sebastian Taeger, Lutz Höppel, Karl Engl, Stefanie Rammelsberger, Markus Maute, Michael Huber, Rainer Hartmann, Georg Hartung
  • Patent number: 9722136
    Abstract: An optoelectronic semiconductor chip has a semiconductor body and a substrate on which the semiconductor body is disposed. The semiconductor body has an active region disposed between a first semiconductor layer of a first conductor type and a second semiconductor layer of a second conductor type. The first semiconductor layer is disposed on the side of the active region facing the substrate. The first semiconductor layer is electrically conductively connected to a first termination layer that is disposed between the substrate and the semiconductor body. An encapsulation layer is disposed between the first termination layer and the substrate and, in plan view of the semiconductor chip, projects at least in some regions over a side face which delimits the semiconductor body.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: August 1, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Karl Engl, Markus Maute, Stefanie Rammelsberger, Anna Kasprzak-Zablocka
  • Publication number: 20170148962
    Abstract: A light emitting diode chip includes a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side and a mirror layer at least in regions at a rear side situated opposite the radiation exit area, a protective layer is arranged on the mirror layer, the protective layer includes a transparent conductive oxide, the mirror layer adjoins the semiconductor layer sequence at an interface situated opposite the protective layer, first and second layers, the first and second electrical connection layers face the rear side of the semiconductor layer sequence and are electrically insulated from one another, and a partial region of the second electrical connection layer extends from the rear side of the semiconductor layer sequence through at least one perforation of the active layer in a direction toward the front side.
    Type: Application
    Filed: January 10, 2017
    Publication date: May 25, 2017
    Inventors: Korbinian Perzlmaier, Kai Gehrke, Robert Walter, Karl Engl, Guido Weiss, Markus Maute, Stefanie Rammelsberger
  • Patent number: 9577165
    Abstract: A light emitting diode chip includes a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side, the light emitting diode chip has a mirror layer at least in regions at a rear side situated opposite the radiation exit area, said mirror layer containing silver, a protective layer is arranged on the mirror layer, and the protective layer comprises a transparent conductive oxide.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: February 21, 2017
    Assignee: OSRAM Opto Semiconductor GmbH
    Inventors: Korbinian Perzlmaier, Kai Gehrke, Robert Walter, Karl Engl, Guido Weiss, Markus Maute, Stefanie Rammelsberger
  • Publication number: 20160225943
    Abstract: An optoelectronic semiconductor chip has a semiconductor body and a substrate on which the semiconductor body is disposed. The semiconductor body has an active region disposed between a first semiconductor layer of a first conductor type and a second semiconductor layer of a second conductor type. The first semiconductor layer is disposed on the side of the active region facing the substrate. The first semiconductor layer is electrically conductively connected to a first termination layer that is disposed between the substrate and the semiconductor body. An encapsulation layer is disposed between the first termination layer and the substrate and, in plan view of the semiconductor chip, projects at least in some regions over a side face which delimits the semiconductor body.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventors: KARL ENGL, MARKUS MAUTE, STEFANIE RAMMELSBERGER, ANNA KASPRZAK-ZABLOCKA
  • Patent number: 9343637
    Abstract: An optoelectronic semiconductor chip has a semiconductor body and a substrate on which the semiconductor body is disposed. The semiconductor body has an active region disposed between a first semiconductor layer of a first conductor type and a second semiconductor layer of a second conductor type. The first semiconductor layer is disposed on the side of the active region facing the substrate. The first semiconductor layer is electrically conductively connected to a first termination layer that is disposed between the substrate and the semiconductor body. An encapsulation layer is disposed between the first termination layer and the substrate and, in plan view of the semiconductor chip, projects at least in some regions over a side face which delimits the semiconductor body.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: May 17, 2016
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Karl Engl, Markus Maute, Stefanie Rammelsberger, Anna Kasprzak-Zablocka
  • Publication number: 20150372203
    Abstract: An optoelectronic semiconductor chip includes a semiconductor body with an active region provided for generating electromagnetic radiation, a first mirror layer provided for reflecting the electromagnetic radiation, a first encapsulation layer formed with an electrically insulating material, and a carrier provided for mechanically supporting the first encapsulation layer, the first mirror layer and the semiconductor body. The first mirror layer is arranged between the carrier and the semiconductor body. The first encapsulation layer is arranged between the carrier and the first mirror layer. The first encapsulation layer is an ALD layer.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 24, 2015
    Inventors: Johann Eibl, Sebastian Taeger, Lutz Höppel, Karl Engl, Stefanie Rammelsberger, Markus Maute, Michael Huber, Rainer Hartmann, Georg Hartung
  • Publication number: 20140319566
    Abstract: A light emitting diode chip includes a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side, the light emitting diode chip has a mirror layer at least in regions at a rear side situated opposite the radiation exit area, said mirror layer containing silver, a protective layer is arranged on the mirror layer, and the protective layer comprises a transparent conductive oxide.
    Type: Application
    Filed: August 23, 2012
    Publication date: October 30, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Korbinian Perzlmaier, Kai Gehrke, Robert Walter, Karl Engl, Guido Weiss, Markus Maute, Stefanie Rammelsberger
  • Patent number: 8872209
    Abstract: A light emitting diode chip includes a semiconductor layer sequence, the semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side. At a rear side lying opposite the radiation exit area, the light emitting diode chip has, at least in regions, a mirror layer containing silver. A functional layer that reduces corrosion and/or improves adhesion of the mirror layer is arranged on the mirror layer, wherein a material from which the functional layer is formed is also distributed in the entire mirror layer. The material of the functional layer has a concentration gradient in the mirror layer, wherein the concentration of the material of the functional layer in the mirror layer decreases proceeding from the functional layer in the direction toward the semiconductor layer sequence.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: October 28, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Markus Maute, Karl Engl, Stefanie Rammelsberger, Nikolaus Gmeinwieser, Johann Eibl
  • Publication number: 20140021507
    Abstract: An optoelectronic semiconductor chip has a semiconductor body and a substrate on which the semiconductor body is disposed. The semiconductor body has an active region disposed between a first semiconductor layer of a first conductor type and a second semiconductor layer of a second conductor type. The first semiconductor layer is disposed on the side of the active region facing the substrate. The first semiconductor layer is electrically conductively connected to a first termination layer that is disposed between the substrate and the semiconductor body. An encapsulation layer is disposed between the first termination layer and the substrate and, in plan view of the semiconductor chip, projects at least in some regions over a side face which delimits the semiconductor body.
    Type: Application
    Filed: February 7, 2012
    Publication date: January 23, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Karl Engl, Markus Maute, Stefanie Rammelsberger, Anna Kasprzak-Zablocka