Patents by Inventor Alexander Linkov
Alexander Linkov 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: 11670742Abstract: An optoelectronic semiconductor chip and a method for producing an optoelectronic semiconductor chip are disclosed. In an embodiment an optoelectronic semiconductor chip includes a semiconductor layer sequence having a plurality of pixels, the semiconductor layer sequence comprising an active layer configured to generate electromagnetic radiation of a first wavelength range and a plurality of conversion elements, wherein each conversion element is configured to convert the radiation of the first wavelength range into radiation of a second wavelength range, wherein each pixel has a radiation exit surface and a conversion element is arranged on each radiation exit surface, and wherein each conversion element has a greater thickness in a central region than in a peripheral region.Type: GrantFiled: August 2, 2017Date of Patent: June 6, 2023Assignee: OSRAM OLED GmbHInventors: Britta Göötz, Alexander Linkov
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Publication number: 20220416133Abstract: In an embodiment a method for operating an optoelectronic semiconductor component includes providing the optoelectronic semiconductor component having an optoelectronic semiconductor chip and a casing comprising a matrix material, wherein the semiconductor chip is embedded into the casing, and wherein optically inactive particles have been introduced as crack nuclei into the matrix material of the casing, and operating the optoelectronic semiconductor component such that cavities form entirely within the casing for at least some of the crack nuclei.Type: ApplicationFiled: December 10, 2020Publication date: December 29, 2022Inventors: Christian Betthausen, Olivier Leray, Muyuan Li, Benjamin Gruber, Michael Steyer, Alexander Linkov, Stefan Handl
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Patent number: 11195976Abstract: An optoelectronic component may have a semiconductor chip designed to emit electromagnetic radiation. The semiconductor chip may have a radiation exit surface, and a protective layer arranged over the radiation exit surface. The protective layer may include at least one first layer comprising an aluminum oxide and at least one second layer comprising a silicon oxide a silicon oxide, and at least one third layer comprising a titanium oxide. A current spreading layer may include one or more transparent conductive oxides arranged between the radiation exit surface and the protective layer.Type: GrantFiled: March 29, 2018Date of Patent: December 7, 2021Assignee: OSRAM OLED GMBHInventors: Jia Ping Jackson Kua, Tilman Eckert, Alexander Linkov
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Patent number: 11107945Abstract: A component includes a light emitting semiconductor chip, wherein the semiconductor chip includes a layer arrangement including a plurality of layers, the p-conducting layer and the n-conducting layer adjoin one another in an active zone, a first electrical contact is configured on the p-conducting side of the layer arrangement at a first side of the semiconductor chip, a second electrical contact is configured on the n-conducting side of the layer arrangement at a second side of the semiconductor chip, the second side being situated opposite the first side of the semiconductor chip, the first side of the semiconductor chip transitions into the second side via an end side, the semiconductor chip is secured by the end side on a substrate, the substrate includes a first and second further electrical contact, and the further electrical contacts electrically conductively connect to the electrical contacts of the semiconductor chip.Type: GrantFiled: November 22, 2017Date of Patent: August 31, 2021Assignee: OSRAM OLED GmbHInventors: Alexander Linkov, Frank Singer, Matthias Bruckschloegl, Siegfried Herrmann, Jürgen Moosburger, Thomas Schwarz
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Patent number: 11038090Abstract: A method of manufacturing an optoelectronic component includes providing a carrier with an upper side; arranging an optoelectronic semiconductor chip above the upper side of the carrier; arranging a casting material over the upper side of the carrier, wherein the optoelectronic semiconductor chip is embedded in the casting material, and the casting material forms a cast surface; and removing a portion of the casting material at the cast surface, wherein a topography is generated at the cast surface, and the removal of a portion of the casting material at the cast surface takes place through laser interference structuring.Type: GrantFiled: July 31, 2018Date of Patent: June 15, 2021Assignee: OSRAM OLED GmbHInventors: Daniel Leisen, Herbert Brunner, Emilia Dinu, Jens Eberhard, Christina Keith, Markus Pindl, Thomas Reeswinkel, Daniel Richter, Christopher Wiesmann, Ludwig Peyker, Alexander Linkov
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Publication number: 20210135068Abstract: A method of manufacturing an optoelectronic component includes providing a carrier with an upper side; arranging an optoelectronic semiconductor chip above the upper side of the carrier; arranging a casting material over the upper side of the carrier, wherein the optoelectronic semiconductor chip is embedded in the casting material, and the casting material forms a cast surface; and removing a portion of the casting material at the cast surface, wherein a topography is generated at the cast surface, and the removal of a portion of the casting material at the cast surface takes place through laser interference structuring.Type: ApplicationFiled: July 31, 2018Publication date: May 6, 2021Inventors: Daniel Leisen, Herbert Brunner, Emilia Dinu, Jens Eberhard, Christina Keith, Markus Pindl, Thomas Reeswinkel, Daniel Richter, Christopher Wiesmann, Ludwig Peyker, Alexander Linkov
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Patent number: 10916686Abstract: An optoelectronic component includes an optoelectronic semiconductor chip having a radiation-emitting face; and an optical element arranged over the radiation-emitting face, wherein the optical element includes a material in which light-scattering particles are embedded, and a concentration of the embedded light-scattering particles has a gradient forming an angle not equal to 90° with the radiation emission face.Type: GrantFiled: November 4, 2014Date of Patent: February 9, 2021Assignee: OSRAM OLED GmbHInventors: Thomas Schwarz, Frank Singer, Alexander Linkov, Stefan Illek, Wolfgang Moench
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Publication number: 20200295240Abstract: A light-emitting semiconductor device is specified which comprises a light-emitting semiconductor chip having a main surface comprising a radiation-outcoupling surface via which, during operation, a first light in a first wavelength range is emitted. A wavelength conversion layer for converting at least part of the first light into second light in a second wavelength range different from the first wavelength range is applied onto a first sub-region of the main surface. An optical feedback element is applied directly to a second sub-region of the main surface adjacent to the first sub-region, wherein the optical feedback element deflects first light emitted from the second sub-region in the direction of the radiation-outcoupling surface and/or in the direction of the wavelength conversion layer.Type: ApplicationFiled: December 11, 2018Publication date: September 17, 2020Inventors: Alexander LINKOV, Hubert HALBRITTER
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Patent number: 10615323Abstract: A component includes a semiconductor chip, an envelope and a reflector, wherein the semiconductor chip has a front side, a rear side facing away from the front side and side faces, and the semiconductor chip is electrically contactable at least partially via its rear side, the reflector completely encloses the semiconductor chip in lateral directions, has a first subregion and a second subregion directly adjoining the first subregion, and the first subregion is spatially spaced from the semiconductor chip and the second subregion directly adjoins the semiconductor chip, the envelope covers the front side of the semiconductor chip completely and the side surfaces of the semiconductor chip at least partially so that the envelope has an interface facing the semiconductor chip and reproducing a contour of the semiconductor chip in regions, and in the component is free of a lead frame enclosed by a molded body.Type: GrantFiled: April 6, 2017Date of Patent: April 7, 2020Assignee: OSRAM OLED GmbHInventors: Michael Kühnelt, Alexander Linkov
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Publication number: 20200098948Abstract: An optoelectronic component may have a semiconductor chip designed to emit electromagnetic radiation. The semiconductor chip may have a radiation exit surface, and a protective layer arranged over the radiation exit surface. The protective layer may include at least one first layer comprising an aluminum oxide and at least one second layer comprising a silicon oxide a silicon oxide, and at least one third layer comprising a titanium oxide. A current spreading layer may include one or more transparent conductive oxides arranged between the radiation exit surface and the protective layer.Type: ApplicationFiled: March 29, 2018Publication date: March 26, 2020Inventors: Jia Ping Jackson KUA, Tilman Eckert, Alexander Linkov
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Patent number: 10580941Abstract: An optoelectronic semiconductor component comprising a connection carrier with a mounting face and an electrically insulating base member. An optoelectronic semiconductor chip is arranged on the mounting face of the connection carrier. A radiation-transmissive body having four side faces is provided. The radiation-transmissive body surrounds the semiconductor chip in such a way that the radiation-transmissive body envelops outer faces of the optoelectronic semiconductor chip not facing the connection carrier in form-fitting manner. The radiation-transmissive body comprises at least one side face which extends at least in places at an angle of between 60° and 70° to the mounting face. The base member has a thickness which amounts to at most 250 ?m.Type: GrantFiled: October 19, 2017Date of Patent: March 3, 2020Assignee: OSRAM OLED GmbHInventors: Michael Binder, Alexander Linkov, Thomas Zeiler, Peter Brick
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Patent number: 10355174Abstract: A component includes a carrier and a semiconductor body arranged on the carrier, wherein the semiconductor body has an active layer arranged between the first and second semiconductor layers and is configured to generate, during operation of the component, an electromagnetic radiation that can be coupled out from the component through a first main surface, the first main surface of the component has an electrical contact layer configured to electrically contact a first semiconductor layer and in a plan view the carrier covers the first main surface in places, and in direct vicinity of the electrical contact layer the component includes a shielding structure configured to prevent electromagnetic radiation generated by the active layer from impinging onto the contact layer.Type: GrantFiled: July 12, 2016Date of Patent: July 16, 2019Assignee: OSRAM Opto Semiconductors GmbHInventors: Markus Maute, Lutz Höppel, Jürgen Moosburger, Thomas Schwarz, Matthias Sabathil, Ralph Wirth, Alexander Linkov, Johannes Baur
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Publication number: 20190207066Abstract: An optoelectronic semiconductor chip and a method for producing an optoelectronic semiconductor chip are disclosed. In an embodiment an optoelectronic semiconductor chip includes a semiconductor layer sequence having a plurality of pixels, the semiconductor layer sequence comprising an active layer configured to generate electromagnetic radiation of a first wavelength range and a plurality of conversion elements, wherein each conversion element is configured to convert the radiation of the first wavelength range into radiation of a second wavelength range, wherein each pixel has a radiation exit surface and a conversion element is arranged on each radiation exit surface, and wherein each conversion element has a greater thickness in a central region than in a peripheral region.Type: ApplicationFiled: August 2, 2017Publication date: July 4, 2019Inventors: Britta Göötz, Alexander Linkov
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Publication number: 20190165225Abstract: A component includes a semiconductor chip, an envelope and a reflector, wherein the semiconductor chip has a front side, a rear side facing away from the front side and side faces, and the semiconductor chip is electrically contactable at least partially via its rear side, the reflector completely encloses the semiconductor chip in lateral directions, has a first subregion and a second subregion directly adjoining the first subregion, and the first subregion is spatially spaced from the semiconductor chip and the second subregion directly adjoins the semiconductor chip, the envelope covers the front side of the semiconductor chip completely and the side surfaces of the semiconductor chip at least partially so that the envelope has an interface facing the semiconductor chip and reproducing a contour of the semiconductor chip in regions, and in the component is free of a lead frame enclosed by a molded body.Type: ApplicationFiled: April 6, 2017Publication date: May 30, 2019Inventors: Michael Kühnelt, Alexander Linkov
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Patent number: 10276752Abstract: An optoelectronic semiconductor component includes a light-emitting semiconductor body having a radiation side, a current expansion layer arranged on the radiation side of the semiconductor body and at least partially covers this side, wherein the current expansion layer includes an electrically-conductive material transparent to the light radiated by the semiconductor body, and particles of a further material, and an electrical contact arranged on a side of the current expansion layer facing away from the semiconductor body.Type: GrantFiled: July 11, 2016Date of Patent: April 30, 2019Assignee: OSRAM Opto Semiconductors GmbHInventors: Johannes Baur, Jürgen Moosburger, Lutz Höppel, Markus Maute, Thomas Schwarz, Matthias Sabathil, Ralph Wirth, Alexander Linkov
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Patent number: 10217910Abstract: A method of producing a light-emitting arrangement includes providing a carrier including a top side, attaching a multitude of first conversion elements on the top side of the carrier, wherein the first conversion elements are arranged in a lateral direction spaced apart from one another, attaching an encapsulation on the top side of the carrier, wherein the encapsulation covers the carrier and the first conversion elements at least sectionally, removing the encapsulation in regions between the first conversion elements, and attaching optoelectronic semiconductor chips between the first conversion elements.Type: GrantFiled: April 3, 2018Date of Patent: February 26, 2019Assignee: OSRAM Opto Semiconductors GmbHInventors: Matthias Sabathil, Alexander Linkov, Britta Göötz, Georg Dirscherl
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Publication number: 20190051788Abstract: A light source is disclosed. In an embodiment a light source includes at least one first semiconductor emitter for generating first light, at least one second semiconductor emitter for generating second light, the second light having a different color than the first light, a light mixing body configured to produce a mixed light from the first and second lights and a detector on the light mixing body, the detector configured to determine a color locus of the mixed light, wherein the first and second semiconductor emitters are arranged along a line and have different distances from the detector, wherein the light mixing body is arranged on side surfaces of the first and second semiconductor emitters and in projection onto the side surfaces at least partially covers each of the side surfaces, so that the detector receives light from each of the first and second semiconductor emitters through the light mixing body.Type: ApplicationFiled: May 29, 2017Publication date: February 14, 2019Inventors: Frank Singer, Alexander Linkov, Stefan Illek, Rainer Butendeich, Christoph Koller, Thomas Schwarz
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Publication number: 20190006562Abstract: An optoelectronic semiconductor component includes a light-emitting semiconductor body having a radiation side, a current expansion layer arranged on the radiation side of the semiconductor body and at least partially covers this side, wherein the current expansion layer includes an electrically-conductive material transparent to the light radiated by the semiconductor body, and particles of a further material, and an electrical contact arranged on a side of the current expansion layer facing away from the semiconductor body.Type: ApplicationFiled: July 11, 2016Publication date: January 3, 2019Inventors: Johannes Baur, Jurgen Moosburger, Lutz Hoppel, Markus Maute, Thomas Schwarz, Matthias Sabathil, Ralph Wirth, Alexander Linkov
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Patent number: 10115871Abstract: An optoelectronic semiconductor component and a method for producing the same are disclosed. In an embodiment the semiconductor component includes a semiconductor chip, which emits electromagnetic radiation of a first wavelength range from a radiation emission surface. The semiconductor component further includes a first conversion layer located on a lateral flank of the semiconductor chip, wherein the first conversion layer is suitable for converting electromagnetic radiation of the first wavelength range into electromagnetic radiation of a second wavelength range, and a second conversion layer located on the radiation emission surface of the semiconductor chip, wherein the second conversion layer is suitable for converting electromagnetic radiation of the first wavelength range into electromagnetic radiation of the second or of a third wavelength range. The first conversion layer is different from the second conversion layer.Type: GrantFiled: December 16, 2015Date of Patent: October 30, 2018Assignee: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Alexander Linkov, Siegfried Herrmann
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Publication number: 20180233634Abstract: A method of producing a light-emitting arrangement includes providing a carrier including a top side, attaching a multitude of first conversion elements on the top side of the carrier, wherein the first conversion elements are arranged in a lateral direction spaced apart from one another, attaching an encapsulation on the top side of the carrier, wherein the encapsulation covers the carrier and the first conversion elements at least sectionally, removing the encapsulation in regions between the first conversion elements, and attaching optoelectronic semiconductor chips between the first conversion elements.Type: ApplicationFiled: April 3, 2018Publication date: August 16, 2018Inventors: Matthias Sabathil, Alexander Linkov, Britta Göötz, Georg Dirscherl