Patents by Inventor Matthias Sabathil
Matthias Sabathil 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).
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Patent number: 8965148Abstract: An optoelectronic component (1) comprises a carrier (2) and at least one semiconductor chip (3). The semiconductor chip (3) is arranged on the carrier (2) and designed for emitting a primary radiation (6). The semiconductor chip (3) is at least partly enclosed by an at least partly transparent medium (7) having a height (8) above the carrier (2) and a width (9) along the carrier (2). Particles (10, 11) are introduced into the medium (7) and interact with the primary radiation (6). The medium (7) has a ratio of the height (8) to the width (9) of greater than 1.Type: GrantFiled: March 28, 2011Date of Patent: February 24, 2015Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Illek, Alexander Linkov, Matthias Sabathil
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Publication number: 20150048400Abstract: A method of producing an optoelectronic semiconductor chip includes growing an optoelectronic semiconductor layer sequence on a growth substrate, forming an electrically insulating layer on a side of the optoelectronic semiconductor layer sequence facing away from the growth substrate by depositing particles of an electrically insulating material by an aerosol deposition method, and at least partly removing the growth substrate after forming the electrically insulating layer.Type: ApplicationFiled: February 14, 2013Publication date: February 19, 2015Inventors: Britta Göötz, Jürgen Moosburger, Andreas Plössl, Matthias Sabathil
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Patent number: 8928052Abstract: An optoelectronic semiconductor chip has a semiconductor layer sequence having an active layer that generates radiation between a layer of a first conductivity type and a layer of a second conductivity type. The layer of the first conductivity type is adjacent to a front side of the semiconductor layer sequence. The semiconductor layer sequence contains at least one cutout extending from a rear side, lying opposite the front side, of the semiconductor layer sequence through the active layer to the layer of the first conductivity type. The layer of the first conductivity type is electrically connected through the cutout by means of a first electrical connection layer which covers the rear side of the semiconductor layer sequence at least in places.Type: GrantFiled: March 13, 2009Date of Patent: January 6, 2015Assignee: OSRAM Opto Semiconductors GmbHInventors: Karl Engl, Lutz Hoeppel, Patrick Rode, Matthias Sabathil
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Patent number: 8908733Abstract: In at least one embodiment of the optoelectronic semiconductor chip (1), the latter is based on a nitride material system and comprises at least one active quantum well (2). The at least one active quantum well (2) is designed to generate electromagnetic radiation when in operation. Furthermore, the at least one active quantum well (2) comprises N successive zones (A) in a direction parallel to a growth direction z of the semiconductor chip (1), N being a natural number greater than or equal to 2. At least two of the zones (A) of the active quantum well (2) have mutually different average indium contents c. Furthermore the at least one active quantum well (2) fulfills the condition: 40??c(z)dz?2.5N?1.5?dz?80.Type: GrantFiled: March 10, 2010Date of Patent: December 9, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Adrian Avramescu, Désirée Queren, Christoph Eichler, Matthias Sabathil, Stephan Lutgen, Uwe Strauss
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Publication number: 20140286369Abstract: An optoelectronic device having an active layer that includes a multiplicity of structural elements spaced apart from one another laterally, wherein the structural elements each have a quantum well structure including at least one barrier layer composed of Inx1Aly1Ga1-x1-y1N, wherein 0?x1?1, 0?y1?1 and x1+y1?1, and at least one quantum well layer composed of Inx2Aly2Ga1-x2-y2N, wherein 0?x2?1, 0?y2?1 and x2+y2?1.Type: ApplicationFiled: August 30, 2012Publication date: September 25, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Simeon Katz, Bastian Galler, Martin Strassburg, Matthias Sabathil, Philipp Drechsel, Werner Bergbauer, Martin Mandl
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Patent number: 8841685Abstract: A description is given of an optoelectronic semiconductor chip (1) comprising a semiconductor layer sequence (2), which has an active zone (4) for generating electromagnetic radiation, and comprising a structured current spreading layer (6), which contains a transparent conductive oxide and is arranged on a main area (12) of the semiconductor layer sequence (2), wherein the current spreading layer (6) covers at least 30% and at most 60% of the main area (12).Type: GrantFiled: June 29, 2009Date of Patent: September 23, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Lutz Hoeppel, Matthias Sabathil
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Patent number: 8816353Abstract: In at least one embodiment of the optoelectronic semiconductor chip (1), the latter comprises a semiconductor layer sequence (2) comprising at least one active layer (3) designed for generating an electromagnetic radiation. Furthermore, the optoelectronic semiconductor chip (1) has coupling-out structures (4), which are fitted at least indirectly on a radiation passage area (20) of the semiconductor layer sequence (2). In this case, a material of the coupling-out structures (4) is different than a material of the semiconductor layer sequence (2). The refractive indices of the materials of the coupling-out structures (4) and of the semiconductor layer sequence (2) deviate from one another by at most 30%. Furthermore, facets (40) of the coupling-out structures (4) have a total area amounting to at least 30% of an area content of the radiation passage area (20).Type: GrantFiled: November 2, 2009Date of Patent: August 26, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Nikolaus Gmeinwieser, Matthias Sabathil, Andreas Leber
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Publication number: 20140225149Abstract: An optoelectronic semiconductor component includes an optoelectronic semiconductor chip and an optical element. A connecting layer includes a transparent oxide arranged between the semiconductor chip and the optical element. The connecting layer directly adjoins the semiconductor chip and the optical element and fixes the optical element on the semiconductor chip. A method for fabricating an optoelectronic semiconductor component is furthermore specified.Type: ApplicationFiled: September 24, 2012Publication date: August 14, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Matthias Sabathil, Andreas Ploessl, Norwin von Malm, Alexander Linkov, Lutz Hoeppel, Christopher Koelper
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Patent number: 8772804Abstract: A semiconductor light-emitting diode (10) is proposed having at least one p-doped light-emitting diode layer (4), an n-doped light-emitting diode layer (2) and an optically active zone (3) between the p-doped light-emitting diode layer (4) and the n-doped light-emitting diode layer (2), having an oxide layer (8) consisting of a transparent conductive oxide, and having at least one mirror layer (9), wherein the oxide layer (8) is disposed between the light-emitting diode layers (2, 4) and the at least one mirror layer (9), and comprises a first boundary surface (8a) which faces the light-emitting diode layers (2, 4) and a second boundary surface (8b) which faces the at least one mirror layer (9), and wherein the second boundary surface (8b) of the oxide layer (8) has less roughness (R2) than the first boundary surface (8a) of the oxide layer (8).Type: GrantFiled: February 11, 2009Date of Patent: July 8, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Magnus Ahlstedt, Johannes Baur, Ulrich Zehnder, Martin Strassburg, Matthias Sabathil, Berthold Hahn
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Publication number: 20140145227Abstract: A light-emitting diode chip includes a semiconductor body including a radiation-generating active region, at least two contact locations electrically contacting the active region, a carrier and a connecting medium arranged between the carrier and the semiconductor body, wherein the semiconductor body includes roughening on outer surfaces facing the carrier, the semiconductor body mechanically connects to the carrier by the connecting medium, the connecting medium locally directly contacts the semiconductor body and the carrier, and the at least two contact locations are arranged on the upper side of the semiconductor body facing away from the carrier.Type: ApplicationFiled: August 17, 2011Publication date: May 29, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Lutz Höppel, Norwin von Malm, Matthias Sabathil
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Patent number: 8684540Abstract: An optical projection apparatus includes a first light source, a second light source, and an imaging element, which is illuminated by the first light source and the second light source during operation. The light source includes a light-emitting diode chip that emits red light during operation. The second light source includes a first light-emitting diode chip, which emits green light during operation. A second light-emitting diode chip emits blue light during operation. The second light-emitting diode chip is arranged on the first light-emitting diode chip at a radiation exit surface of the first light-emitting diode chip. Electromagnetic radiation generated in the first light-emitting diode chip during operation passes through the second light-emitting diode chip.Type: GrantFiled: June 15, 2010Date of Patent: April 1, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Simon Kocur, Matthias Sabathil
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Publication number: 20140070246Abstract: The invention relates to a light-emitting semiconductor component, comprising—a first semiconductor body (1), which comprises an active zone (11) in which during the operation of the light-emitting semiconductor component electromagnetic radiation is generated, at least some of which leaves the first semiconductor body (1) through a radiation exit surface (1a), and—a second semiconductor body (2), which is suitable for converting the electromagnetic radiation into converted electromagnetic radiation having a shorter wavelength, wherein—the first semiconductor body (1) and the second semiconductor body (2) are produced separately from each other,—the second semiconductor body (2) is electrically inactive, and—the second semiconductor body (2) is in direct contact with the radiation exit surface (1a) and is attached there to the first semiconductor body (1) without connecting means.Type: ApplicationFiled: March 7, 2012Publication date: March 13, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Matthias Sabathil, Andreas Plößl, Hans-Jürgen Lugauer, Alexander Linkov, Patrick Rode
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Patent number: 8653540Abstract: An optoelectronic semiconductor body includes a semiconductor layer sequence which has an active layer suitable for generating electromagnetic radiation, and a first and a second electrical connecting layer. The semiconductor body is provided for emitting electromagnetic radiation from a front side. The first and the second electrical connecting layer are arranged at a rear side opposite the front side and are electrically insulated from one another by means of a separating layer. The first electrical connecting layer, the second electrical connecting layer and the separating layer laterally overlap and a partial region of the second electrical connecting layer extends from the rear side through a breakthrough in the active layer in the direction of the front side. Furthermore, a method for producing such an optoelectronic semiconductor body is specified.Type: GrantFiled: April 12, 2013Date of Patent: February 18, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Karl Engl, Patrick Rode, Lutz Hoeppel, Matthias Sabathil
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Publication number: 20130328066Abstract: An optoelectronic semiconductor chip includes a semiconductor layer stack having an active layer that generates radiation, and a radiation emission side, and a conversion layer disposed on the radiation emission side of the semiconductor layer stack, wherein the conversion layer converts at least a portion of the radiation, which is emitted by the active layer, into radiation of a different wavelength, the radiation emission side of the semiconductor layer stack has a first nanostructuring, and the conversion layer is disposed in this first nanostructuring.Type: ApplicationFiled: November 2, 2011Publication date: December 12, 2013Applicant: OSRAM Opto Semiconductors GmbHInventors: Matthias Sabathil, Alexander Linkov, Christopher Kölper, Martin Strassburg, Norwin von Malm
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Patent number: 8581236Abstract: An electrically pumped optoelectronic semiconductor chip includes at least two radiation-active quantum wells comprising InGaN or consisting thereof. The optoelectronic semiconductor chip includes at least two cover layers which include AlGaN or consist thereof. Each of the cover layers is assigned to precisely one of the radiation-active quantum wells. The cover layers are each located on a p-side of the associated radiation-active quantum well. The distance between the radiation-active quantum well and the associated cover layer is at most 1.5 nm.Type: GrantFiled: June 30, 2010Date of Patent: November 12, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Matthias Peter, Tobias Meyer, Jürgen Off, Tetsuya Taki, Joachim Hertkorn, Matthias Sabathil, Ansgar Laubsch, Andreas Biebersdorf
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Patent number: 8530923Abstract: A light-emitting diode chip (1) with a semiconductor layer sequence (2) is described, which is contacted electrically by contacts (5) via a current spreading layer (3). The contacts (5) cover around 1%-8% of the surface of the semiconductor layer sequence (2). The contacts (5) consist for example of separate contact points (51), which are arranged at the nodes of a regular grid (52) with a grid constant of 12 ?m. The current spreading layer (3) contains for example indium-tin oxide, indium-zinc oxide or zinc oxide and has a thickness in the range from 15 nm to 60 nm.Type: GrantFiled: April 28, 2009Date of Patent: September 10, 2013Assignee: OSRAM Opto Semiconductor GmbHInventors: Matthias Sabathil, Lutz Hoeppel, Andreas Weimar, Karl Engl, Johannes Baur
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Patent number: 8526476Abstract: A semiconductor chip with a semiconductor body has a semiconductor layer sequence with an active region provided for generating radiation. A mirror structure that includes a mirror layer and a dielectric layer that is arranged at least in regions between the mirror layer and semiconductor body is arranged on the semiconductor body.Type: GrantFiled: April 24, 2008Date of Patent: September 3, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Karl Engl, Lutz Hoeppel, Christoph Eichler, Matthias Sabathil, Andreas Weimar
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Patent number: 8502267Abstract: An optoelectronic semiconductor component includes an active layer that emits radiation, the active layer surrounded by cladding layers, wherein the cladding layers and/or the active layer include(s) an indium-containing phosphide compound semiconductor material and the phosphide compound semiconductor material contains at least one of elements Bi or Sb as an additional element of main group V.Type: GrantFiled: January 5, 2010Date of Patent: August 6, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Alexander Behres, Matthias Sabathil
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Patent number: 8450751Abstract: An optoelectronic semiconductor body includes a semiconductor layer sequence which has an active layer suitable for generating electromagnetic radiation, and a first and a second electrical connecting layer. The semiconductor body is provided for emitting electromagnetic radiation from a front side. The first and the second electrical connecting layer are arranged at a rear side opposite the front side and are electrically insulated from one another by means of a separating layer. The first electrical connecting layer, the second electrical connecting layer and the separating layer laterally overlap and a partial region of the second electrical connecting layer extends from the rear side through a breakthrough in the active layer in the direction of the front side. Furthermore, a method for producing such an optoelectronic semiconductor body is specified.Type: GrantFiled: April 24, 2008Date of Patent: May 28, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Karl Engl, Patrick Rode, Lutz Hoeppel, Matthias Sabathil
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Patent number: 8436394Abstract: A luminescence diode chip includes a semiconductor layer sequence having an active layer suitable for generating electromagnetic radiation, and a first electrical connection layer, which touches and makes electrically conductive contact with the semiconductor layer sequence. The first electrical connection layer touches and makes contact with the semiconductor layer sequence in particular with a plurality of contact areas. In the case of the luminescence diode chip, an inhomogeneous current density distribution or current distribution is set in a targeted manner in the semiconductor layer sequence by means of an inhomogeneous distribution of an area density of the contact areas along a main plane of extent of the semiconductor layer sequence.Type: GrantFiled: October 16, 2009Date of Patent: May 7, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Peter Brick, Matthias Sabathil, Hagen Luckner