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).

  • Patent number: 11670742
    Abstract: 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: Grant
    Filed: August 2, 2017
    Date of Patent: June 6, 2023
    Assignee: OSRAM OLED GmbH
    Inventors: Britta Göötz, Alexander Linkov
  • Publication number: 20220416133
    Abstract: 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: Application
    Filed: December 10, 2020
    Publication date: December 29, 2022
    Inventors: Christian Betthausen, Olivier Leray, Muyuan Li, Benjamin Gruber, Michael Steyer, Alexander Linkov, Stefan Handl
  • Patent number: 11195976
    Abstract: 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: Grant
    Filed: March 29, 2018
    Date of Patent: December 7, 2021
    Assignee: OSRAM OLED GMBH
    Inventors: Jia Ping Jackson Kua, Tilman Eckert, Alexander Linkov
  • Patent number: 11107945
    Abstract: 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: Grant
    Filed: November 22, 2017
    Date of Patent: August 31, 2021
    Assignee: OSRAM OLED GmbH
    Inventors: Alexander Linkov, Frank Singer, Matthias Bruckschloegl, Siegfried Herrmann, Jürgen Moosburger, Thomas Schwarz
  • Patent number: 11038090
    Abstract: 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: Grant
    Filed: July 31, 2018
    Date of Patent: June 15, 2021
    Assignee: OSRAM OLED GmbH
    Inventors: Daniel Leisen, Herbert Brunner, Emilia Dinu, Jens Eberhard, Christina Keith, Markus Pindl, Thomas Reeswinkel, Daniel Richter, Christopher Wiesmann, Ludwig Peyker, Alexander Linkov
  • Publication number: 20210135068
    Abstract: 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: Application
    Filed: July 31, 2018
    Publication date: May 6, 2021
    Inventors: Daniel Leisen, Herbert Brunner, Emilia Dinu, Jens Eberhard, Christina Keith, Markus Pindl, Thomas Reeswinkel, Daniel Richter, Christopher Wiesmann, Ludwig Peyker, Alexander Linkov
  • Patent number: 10916686
    Abstract: 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: Grant
    Filed: November 4, 2014
    Date of Patent: February 9, 2021
    Assignee: OSRAM OLED GmbH
    Inventors: Thomas Schwarz, Frank Singer, Alexander Linkov, Stefan Illek, Wolfgang Moench
  • Publication number: 20200295240
    Abstract: 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: Application
    Filed: December 11, 2018
    Publication date: September 17, 2020
    Inventors: Alexander LINKOV, Hubert HALBRITTER
  • Patent number: 10615323
    Abstract: 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: Grant
    Filed: April 6, 2017
    Date of Patent: April 7, 2020
    Assignee: OSRAM OLED GmbH
    Inventors: Michael Kühnelt, Alexander Linkov
  • Publication number: 20200098948
    Abstract: 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: Application
    Filed: March 29, 2018
    Publication date: March 26, 2020
    Inventors: Jia Ping Jackson KUA, Tilman Eckert, Alexander Linkov
  • Patent number: 10580941
    Abstract: 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: Grant
    Filed: October 19, 2017
    Date of Patent: March 3, 2020
    Assignee: OSRAM OLED GmbH
    Inventors: Michael Binder, Alexander Linkov, Thomas Zeiler, Peter Brick
  • Patent number: 10355174
    Abstract: 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: Grant
    Filed: July 12, 2016
    Date of Patent: July 16, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Markus Maute, Lutz Höppel, Jürgen Moosburger, Thomas Schwarz, Matthias Sabathil, Ralph Wirth, Alexander Linkov, Johannes Baur
  • Publication number: 20190207066
    Abstract: 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: Application
    Filed: August 2, 2017
    Publication date: July 4, 2019
    Inventors: Britta Göötz, Alexander Linkov
  • Publication number: 20190165225
    Abstract: 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: Application
    Filed: April 6, 2017
    Publication date: May 30, 2019
    Inventors: Michael Kühnelt, Alexander Linkov
  • Patent number: 10276752
    Abstract: 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: Grant
    Filed: July 11, 2016
    Date of Patent: April 30, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Johannes Baur, Jürgen Moosburger, Lutz Höppel, Markus Maute, Thomas Schwarz, Matthias Sabathil, Ralph Wirth, Alexander Linkov
  • Patent number: 10217910
    Abstract: 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: Grant
    Filed: April 3, 2018
    Date of Patent: February 26, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Matthias Sabathil, Alexander Linkov, Britta Göötz, Georg Dirscherl
  • Publication number: 20190051788
    Abstract: 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: Application
    Filed: May 29, 2017
    Publication date: February 14, 2019
    Inventors: Frank Singer, Alexander Linkov, Stefan Illek, Rainer Butendeich, Christoph Koller, Thomas Schwarz
  • Publication number: 20190006562
    Abstract: 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: Application
    Filed: July 11, 2016
    Publication date: January 3, 2019
    Inventors: Johannes Baur, Jurgen Moosburger, Lutz Hoppel, Markus Maute, Thomas Schwarz, Matthias Sabathil, Ralph Wirth, Alexander Linkov
  • Patent number: 10115871
    Abstract: 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: Grant
    Filed: December 16, 2015
    Date of Patent: October 30, 2018
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Alexander Linkov, Siegfried Herrmann
  • Publication number: 20180233634
    Abstract: 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: Application
    Filed: April 3, 2018
    Publication date: August 16, 2018
    Inventors: Matthias Sabathil, Alexander Linkov, Britta Göötz, Georg Dirscherl