Patents by Inventor Christoph Eichler
Christoph Eichler 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: 11923660Abstract: An optoelectronic semiconductor component is provided that includes a primary light source and a secondary light source. The primary light source and the secondary light source are monolithically integrated in the semiconductor component so that only condensed matter is located between them. The primary light source includes a first resonator containing a semiconductor layer sequence which is electrically pumped during operation. A first resonator axis of the first resonator is oriented parallel to a growth direction (G) of the semiconductor layer sequence. The primary light source is configured to generate pump laser radiation (P). The secondary light source includes a pump medium for generating secondary radiation (S) and the pump medium is optically pumped by the pump laser radiation (P). The first resonator axis points past the pump medium.Type: GrantFiled: June 6, 2019Date of Patent: March 5, 2024Assignee: OSRAM OLED GMBHInventors: Bernhard Stojetz, Christoph Eichler, Alfred Lell, Sven Gerhard
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Publication number: 20240030686Abstract: In an embodiment a light-emitting semiconductor chip includes a semiconductor body having a plurality of emitter units, wherein each emitter unit has an active region which is arranged in a resonator having an outcoupling side and a rear side and which is configured to emit light at the outcoupling side along a radiation emission direction, wherein, in each emitter unit, the active region is completely penetrated by at least one recess in the semiconductor body, wherein, in each emitter unit, in a region of the active region the recess has a recess width measured along the radiation emission direction, and wherein recess widths of the emitter units are at least partially different.Type: ApplicationFiled: December 9, 2021Publication date: January 25, 2024Inventors: Lars Nähle, Christoph Eichler
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Publication number: 20230369831Abstract: The invention relates to a component with a main part and a contact structure. The main part has an active zone which is designed to generate electromagnetic radiation at least in some regions during the operation of the component. The contact structure has a plurality of individually actuatable segments. The component has a connection surface and a lateral surface running transversely to the connection surface, and the lateral surface is designed as a radiation passage surface of the component. The connection surface is designed to be structured, wherein the connection surface is defined by common internal boundary surfaces between the main part and the contact structure, and each segment has a local common boundary surface with the main part and is designed for a pixelated current impression into the main part. The invention additionally relates to a method for operating such a component.Type: ApplicationFiled: September 21, 2021Publication date: November 16, 2023Applicant: ams-OSRAM International GmbHInventors: Christoph Eichler, Lars Naehle, Sven Gerhard, Alfred Lell, Harald Koenig
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Patent number: 11804696Abstract: A semiconductor laser (1) is provided that includes a semiconductor layer sequence in which an active zone for generating laser radiation is located. A ridge waveguide is formed as an elevation from the semiconductor layer sequence. An electrical contact layer is located directly on the ridge waveguide. A metallic electrical connection region is located directly on the contact layer and is configured for external electrical connection of the semiconductor laser. A metallic breakage coating extends directly to facets of the semiconductor layer sequence and is arranged on the ridge waveguide. The breakage coating is electrically functionless and includes comprises a lower speed of sound for a breaking wave than the semiconductor layer sequence in the region of the ridge waveguide.Type: GrantFiled: June 12, 2019Date of Patent: October 31, 2023Assignee: OSRAM OLED GMBHInventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Muhammad Ali
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Publication number: 20230299562Abstract: A semiconductor laser diode is specified, the semiconductor laser diode includes a semiconductor layer sequence having an active layer having a main extension plane and which, in operation, is configured to generate light in an active region and emit light via a light-outcoupling surface, the active region extending from a back surface opposite the light-outcoupling surface to the light-outcoupling surface along a longitudinal direction in the main extension plane, the semiconductor layer sequence having a surface region on which a first cladding layer is applied in direct contact, the first cladding layer having a transparent material from a material system different from the semiconductor layer sequence, and the first cladding layer being structured and having a first structure.Type: ApplicationFiled: May 24, 2023Publication date: September 21, 2023Inventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Bemhard Stojetz
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Publication number: 20230283040Abstract: The invention relates to a method for producing a radiation-emitting semiconductor body, including the following steps: providing a growth substrate having a main surface; producing a plurality of distributor structures on the main surface of the growth substrate; epitaxially depositing a compound semiconductor material on the main surface of the growth substrate, wherein the epitaxial growth of the compound semiconductor material varies along the main surface because of the distributor structures, such that the epitaxial deposition produces an epitaxial semiconductor layer sequence having at least a first emitter region and a second emitter region on the main surface, the first emitter region and the second emitter region being laterally adjacent to each other in a top view of a main surface of the semiconductor body, and the first emitter region and the second emitter region producing electromagnetic radiation of different wavelength ranges during operation.Type: ApplicationFiled: July 20, 2021Publication date: September 7, 2023Applicant: ams-OSRAM International GmbHInventors: Jan Wagner, Lars Naehle, Sven Gerhard, Alfred Lell, Harald Koenig, Christoph Eichler, Georg Brüderl, Martin Rudolf Behringer
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Publication number: 20230261436Abstract: The invention relates to a radiation-emitting semiconductor chip having the following features:—a semiconductor body including an active region which, during operation, generates electromagnetic radiation and is arranged in a resonator, —at least one recess in the semiconductor body, which recess completely penetrates the active region, wherein—the recess has a first lateral face and a second lateral face opposite the first lateral face, and—the first lateral face has a first coating which specifies a reflectivity for the electromagnetic radiation of the active region, and/or—the second lateral face has a second coating which specifies a reflectivity for the electromagnetic radiation of the active region. The invention further relates to a method for producing such a semiconductor chip.Type: ApplicationFiled: July 5, 2021Publication date: August 17, 2023Inventors: Harald Koenig, Peter Fuchs, Lars Naehle, Christoph Eichler
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Patent number: 11695253Abstract: A semiconductor laser diode is specified, the semiconductor laser diode includes a semiconductor layer sequence having an active layer having a main extension plane and which, in operation, is configured to generate light in an active region and emit light via a light-outcoupling surface, the active region extending from a back surface opposite the light-outcoupling surface to the light-outcoupling surface along a longitudinal direction in the main extension plane, the semiconductor layer sequence having a surface region on which a first cladding layer is applied in direct contact, the first cladding layer having a transparent material from a material system different from the semiconductor layer sequence, and the first cladding layer being structured and having a first structure.Type: GrantFiled: April 14, 2022Date of Patent: July 4, 2023Assignee: OSRAM OLED GmbHInventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Bernhard Stojetz
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Publication number: 20230197893Abstract: The invention relates to a radiation-emitting semiconductor chip, having: a semiconductor body comprising an active region which is designed to generate electromagnetic radiation; a resonator which comprises a first end region and a second end region; and at least one cut-out in the semiconductor body, said cut-out passing completely through the active region, wherein: the active region is situated in the resonator, and the cut-out defines a reflectivity for the electromagnetic radiation. The invention also relates to a radiation-emitting semiconductor component, a method for producing a radiation-emitting semiconductor chip, and a method for producing radiation-emitting semiconductor components.Type: ApplicationFiled: May 10, 2021Publication date: June 22, 2023Applicant: ams-OSRAM International GmbHInventors: Christoph EICHLER, Lars NÄHLE, Sven GERHARD
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Patent number: 11626707Abstract: In an embodiment a semiconductor laser diode includes a semiconductor layer sequence comprising an active layer having a main extension plane, the semiconductor layer sequence configured to generate light in an active region and radiate the light via a light-outcoupling surface, wherein the active region extends from a rear surface opposite the light-outcoupling surface to the light-outcoupling surface along a longitudinal direction in the main extension plane and a continuous contact structure directly disposed on a surface of the semiconductor layer sequence, wherein the contact structure comprises in at least a first contact region a first electrical contact material in direct contact with the surface region and in at least a second contact region a second electrical contact material in direct contact with the surface region, wherein the first and second contact regions adjoin one another.Type: GrantFiled: March 5, 2021Date of Patent: April 11, 2023Assignee: OSRAM OLED GMBHInventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Bernhard Stojetz
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Patent number: 11581702Abstract: A semiconductor laser diode is disclosed. In an embodiment a semiconductor laser diode includes a first resonator and a second resonator, the first and second resonators having parallel resonator directions along a longitudinal direction and being monolithically integrated into the semiconductor laser diode, wherein the first resonator includes at least a part of a semiconductor layer sequence having an active layer and an active region configured to be electrically pumped to generate a first light, wherein the longitudinal direction is parallel to a main extension plane of the active layer, and wherein the second resonator has an active region with a laser-active material configured to be optically pumped by at least a part of the first light to produce a second light which is partially emitted outwards from the second resonator.Type: GrantFiled: May 17, 2018Date of Patent: February 14, 2023Assignee: OSRAM OLED GMBHInventors: Bernhard Stojetz, Christoph Eichler, Alfred Lell, Sven Gerhard
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Patent number: 11527865Abstract: An optoelectronic semiconductor device includes a semiconductor body in which an active layer configured to generate or detect electromagnetic radiation, a first interlayer and a p-conducting contact layer are formed, and a connection layer applied to the semiconductor body, wherein the contact layer is disposed between the first interlayer and the connection layer and adjoins the connection layer, the active layer is arranged on a side of the first interlayer remote from the contact layer, the first interlayer and the contact layer are based on a nitride compound semiconductor, the contact layer is doped with a p-dopant, the contact layer has a thickness of at most 50 nm, and the contact layer includes a lower aluminum content than the first interlayer.Type: GrantFiled: August 10, 2018Date of Patent: December 13, 2022Assignee: OSRAM OLED GmbHInventors: Matthias Peter, Teresa Wurm, Christoph Eichler
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Publication number: 20220239069Abstract: A semiconductor laser diode is specified, the semiconductor laser diode includes a semiconductor layer sequence having an active layer having a main extension plane and which, in operation, is configured to generate light in an active region and emit light via a light-outcoupling surface, the active region extending from a back surface opposite the light-outcoupling surface to the light-outcoupling surface along a longitudinal direction in the main extension plane, the semiconductor layer sequence having a surface region on which a first cladding layer is applied in direct contact, the first cladding layer having a transparent material from a material system different from the semiconductor layer sequence, and the first cladding layer being structured and having a first structure.Type: ApplicationFiled: April 14, 2022Publication date: July 28, 2022Inventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Bernhard Stojetz
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Patent number: 11336078Abstract: A semiconductor laser diode is specified, the semiconductor laser diode includes a semiconductor layer sequence having an active layer which has a main extension plane and which, in operation, is adapted to generate light in an active region and to emit light via a light-outcoupling surface, the active region extending from a rear surface opposite the light-outcoupling surface to the light-outcoupling surface along a longitudinal direction in the main extension plane, the semiconductor layer sequence having a surface region on which a first cladding layer is applied in direct contact, the first cladding layer having a transparent material from a material system different from the semiconductor layer sequence, and the first cladding layer being structured and having a first structure.Type: GrantFiled: June 8, 2018Date of Patent: May 17, 2022Assignee: OSRAM OLED GmbHInventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Bernhard Stojetz
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Publication number: 20220131341Abstract: The invention relates to a semiconductor laser diode, which comprises a semiconductor layer sequence grown in a vertical direction and having an active layer that is configured and provided to generate light during operation in at least one active region extending in a longitudinal direction, and which comprises a transparent electrically conductive cover layer on the semiconductor layer sequence, wherein the semiconductor layer sequence terminates in a vertical direction with a top side, and the top side has a contact region arranged in the vertical direction above the active region and at least one cover region directly adjoining the contact region in a lateral direction perpendicular to the vertical and longitudinal directions, the cover layer is applied contiguously to the contact region and the at least one cover region on the top side, the cover layer is applied directly to the top side of the semiconductor layer sequence at least in the at least one cover region, and at least one element defining the aType: ApplicationFiled: February 13, 2020Publication date: April 28, 2022Inventors: Sven GERHARD, Christoph EICHLER, Alfred LELL, Muhammad ALI
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Publication number: 20220013990Abstract: In an embodiment an edge-emitting semiconductor laser includes a semiconductor layer sequence having a waveguide region with an active layer disposed between a first waveguide layer and a second waveguide layer and a layer system arranged outside the waveguide region configured to reduce facet defects in the waveguide region, wherein the layer system includes one or more layers with the material composition AlxInyGa1-x-yN with 0?x?1, 0?y<1 and x+y?1, wherein at least one layer of the layer system includes an aluminum portion x?0.05 or an indium portion y?0.02, wherein a layer strain is at least 2 GPa at least in some areas, and wherein the semiconductor layer sequence is based on a nitride compound semiconductor material.Type: ApplicationFiled: November 12, 2019Publication date: January 13, 2022Inventors: Jan Wagner, Werner Bergbauer, Christoph Eichler, Alfred Lell, Georg Brüderl, Matthias Peter
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Patent number: 11165223Abstract: A semiconductor light source is disclosed. In one embodiment, a semiconductor light source includes at least one semiconductor laser configured to generate a primary radiation and at least one conversion element configured to generate a longer-wave visible secondary radiation from the primary radiation, wherein the conversion element includes a semiconductor layer sequence having one or more quantum well layers, wherein, in operation, the primary radiation is irradiated into the semiconductor layer sequence parallel to a growth direction thereof, with a tolerance of at most 15°, wherein, in operation, the semiconductor layer sequence is homogeneously illuminated with the primary radiation, and wherein a growth substrate of the semiconductor layer sequence is located between the semiconductor layer sequence and the semiconductor laser, the growth substrate being oriented perpendicular to the growth direction.Type: GrantFiled: June 2, 2020Date of Patent: November 2, 2021Assignee: OSRAM OLED GMBHInventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Loeffler
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Publication number: 20210257812Abstract: A semiconductor laser (1) is provided that includes a semiconductor layer sequence in which an active zone for generating laser radiation is located. A ridge waveguide is formed as an elevation from the semiconductor layer sequence. An electrical contact layer is located directly on the ridge waveguide. A metallic electrical connection region is located directly on the contact layer and is configured for external electrical connection of the semiconductor laser. A metallic breakage coating extends directly to facets of the semiconductor layer sequence and is arranged on the ridge waveguide. The breakage coating is electrically functionless and includes a lower speed of sound for a breaking wave than the semiconductor layer sequence in the region of the ridge waveguide.Type: ApplicationFiled: June 12, 2019Publication date: August 19, 2021Inventors: Sven GERHARD, Christoph EICHLER, Alfred LELL, Muhammad ALI
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Publication number: 20210249843Abstract: An optoelectronic semiconductor component is provided that includes a primary light source and a secondary light source. The primary light source and the secondary light source are monolithically integrated in the semiconductor component so that only condensed matter is located between them. The primary light source includes a first resonator containing a semiconductor layer sequence which is electrically pumped during operation. A first resonator axis of the first resonator is oriented parallel to a growth direction (G) of the semiconductor layer sequence. The primary light source is configured to generate pump laser radiation (P). The secondary light source includes a pump medium for generating secondary radiation (S) and the pump medium is optically pumped by the pump laser radiation (P). The first resonator axis points past the pump medium.Type: ApplicationFiled: June 6, 2019Publication date: August 12, 2021Inventors: Bernhard STOJETZ, Christoph EICHLER, Alfred LELL, Sven GERHARD
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Publication number: 20210249839Abstract: In an embodiment a semiconductor laser diode includes a semiconductor layer sequence comprising an active layer having a main extension plane, the semiconductor layer sequence configured to generate light in an active region and radiate the light via a light-outcoupling surface, wherein the active region extends from a rear surface opposite the light-outcoupling surface to the light-outcoupling surface along a longitudinal direction in the main extension plane and a continuous contact structure directly disposed on a surface of the semiconductor layer sequence, wherein the contact structure comprises in at least a first contact region a first electrical contact material in direct contact with the surface region and in at least a second contact region a second electrical contact material in direct contact with the surface region, wherein the first and second contact regions adjoin one another.Type: ApplicationFiled: March 5, 2021Publication date: August 12, 2021Inventors: Sven Gerhard, Christoph Eichler, Alfred Lell, Bernhard Stojetz