Abstract: A semiconductor radiation source includes at least one semiconductor chip that generates radiation; a controller with one or more switching elements configured for pulsed operation of the semiconductor chip; and at least one capacitor body, wherein the semiconductor chip directly electrically connects in a planar manner to the capacitor body, the controller electrically connects to a side of the semiconductor chip opposite the capacitor body, and the controller, the capacitor body and the semiconductor chip are stacked on top of each other so that the capacitor body is located between the control unit and the semiconductor chip.
Type:
Grant
Filed:
March 20, 2018
Date of Patent:
July 20, 2021
Assignee:
OSRAM OLED GmbH
Inventors:
Andreas Wojcik, Hubert Halbritter, Josip Maric
Abstract: A method for producing an optoelectronic semiconductor component and an optoelectronic semiconductor component are disclosed. In an embodiment a method include providing a semiconductor layer sequence having an active region and a plurality of emission regions, forming a plurality of first contact points, filling spacings between the first contact points with a molding compound, removing a growth substrate of the semiconductor layer sequence and arranging the semiconductor layer sequence on a connection carrier comprising a control circuit and a plurality of connection surfaces, wherein each of the first contact points is electrically conductively connected to a connection surface, wherein the emission regions are independently controllable by the control circuit, and wherein the molding compound serves as a temporary auxiliary carrier that mechanically stabilizes the semiconductor layer sequence during the removal of the growth substrate.
Abstract: A light-emitting device and a method for manufacturing a light emitting device are disclosed. In an embodiment a light-emitting device includes a light-emitting semiconductor chip having a light-outcoupling surface and an optical element arranged on the light-outcoupling surface, wherein the light-emitting semiconductor chip is laterally surrounded by a frame element in a form-locking manner, wherein the optical element is mounted on the frame element, wherein the frame element projects beyond the light-outcoupling surface in a vertical direction such that a gas-filled gap is present at least in a partial region between the light-outcoupling surface and the optical element, and wherein the frame element has a channel connecting the gap to an atmosphere surrounding the light-emitting device.
Type:
Grant
Filed:
April 11, 2019
Date of Patent:
July 20, 2021
Assignee:
OSRAM OLED GMBH
Inventors:
Luca Haiberger, Sam Chou, Martin Brandl
Abstract: A method of producing an optoelectronic semiconductor component includes A) providing at least three source substrates, wherein each of the source substrates is equipped with a specific type of radiation-emitting semiconductor chips, B) providing a target substrate having a mounting plane configured to mount the semiconductor chips thereto, C) forming platforms on the target substrate, and D) transferring at least some of the semiconductor chips with a wafer-to-wafer process from the source substrates onto the target substrate so that the semiconductor chips transferred to the target substrate maintain their relative position with respect to one another, within the types of semiconductor chips, wherein on the target substrate the semiconductor chips of each type of semiconductor chips have a specific height above the mounting plane due to the platforms so that the semiconductor chips of different types of semiconductor chips have different heights.
Type:
Grant
Filed:
January 12, 2018
Date of Patent:
July 20, 2021
Assignee:
OSRAM OLED GmbH
Inventors:
Andreas Plößl, Siegfried Herrmann, Martin Rudolf Behringer, Frank Singer, Thomas Schwarz, Alexander F. Pfeuffer
Abstract: A method of transmitting optical data includes providing a plurality of light sources in a transmission system, transmitting a data signal with data to be transmitted to the transmission system, decomposing the data signal in the transmission system into N different sub-signals, wherein N is a natural number with N?2, and controlling the light sources based on the sub-signals such that each of the light sources emits light according to one of the sub-signals and the light emitted overall by the light sources transmits the data.
Type:
Grant
Filed:
August 10, 2018
Date of Patent:
July 20, 2021
Assignee:
OSRAM OLED GmbH
Inventors:
Martin Rudolf Behringer, Hubert Halbritter, Roland Heinrich Enzmann
Abstract: A method for severing an epitaxially grown semiconductor body is given, in which a) a growth substrate (2) is provided; b) at least one trench (20) is produced in a first main surface (2a) of the growth substrate (2) by etching; c) a semiconductor material is epitaxially deposited on the first main surface (2a) and in the trench (20), wherein a semiconductor body (1) is formed, and the semiconductor body at least partially fills the trench (20); and d) the semiconductor body and the growth substrate are cut along the main direction of the trench. Furthermore, a semiconductor chip with a cover surface and side surfaces is specified, in which the side surfaces each have a beveled section that is adjacent to the cover surface and whose surface is created by epitaxy.
Abstract: An optoelectronic component includes first and second semiconductor layers and an active layer that generates electromagnetic radiation, wherein the active layer is disposed between the first and second semiconductor layers, a recess in the first semiconductor layer, a front side provided for coupling out the electromagnetic radiation, a first electrical connection layer and a second electrical connection layer disposed on a rear side opposite the front side, wherein the first electrical connection layer is arranged at least partially in the recess, and a contact zone with a dopant of a second conductivity type different from the first conductivity type, wherein the contact zone adjoins the recess, and the first semiconductor layer and the second semiconductor layer are highly doped to prevent diffusion of the dopant from the contact zone into the first semiconductor layer and diffusion of the dopant from the contact zone into the second semiconductor layer.
Abstract: A diffractive optical element includes a carrier and a plurality of nano- or micro-scale rods arranged above a top side of the carrier, wherein the rods are arranged parallel to one another in a regular grid arrangement. A method of producing a diffractive optical element includes providing a carrier and epitaxially growing a plurality of mutually parallel nano- or micro-scale rods in a regular gird arrangement above a top side of the carrier.
Type:
Grant
Filed:
March 16, 2017
Date of Patent:
July 13, 2021
Assignee:
OSRAM OLED GmbH
Inventors:
Roland Enzmann, Hubert Halbritter, Adrian Stefan Avramescu, Thomas Hager, Georg Roßbach
Abstract: An optoelectronic component, a method for manufacturing an optoelectronic component and a method for operating an optoelectronic component are disclosed. In an embodiment, the component includes a carrier comprising a molded body and a light-emitting semiconductor body with a first segment and a second segment, wherein the first segment and the second segment are spatially separated from one another, and wherein each segment has an emission side facing away from the carrier. The component further includes a first electrical conductor path arranged on the first segment and on the second segment on a side of the light-emitting semiconductor body facing towards the carrier and a first electrical connecting structure and a second electrical connecting structure, each electrically connecting the first segment and the second segment to one another, wherein the first and second electrical connecting structure are electrically connected to one another by the first electrical conductor path.
Abstract: A laser diode having a semiconductor layer sequence based on a nitride compound semiconductor material includes an n-type cladding layer, a first waveguide layer, a second waveguide layer and an active layer, and a p-type cladding layer including a first partial layer and a second partial layer, wherein the first partial layer includes Alx1Ga1-x1N with 0?x1?1 or Alx1Iny1Ga1-x1-y1N with 0?x1?1, 0?y1<1 and x1+y1?1, the aluminum content x1 decreases in a direction pointing away from the active layer so that the aluminum content has a maximum value x1max and a minimum value x1min<x1max, and the second partial layer includes Alx2Ga1-x2N with 0?x2?x1min or Alx2Iny2Ga1-x2-y2N with 0?x2?x1min, 0?y2<1 and x2+y2?1.
Type:
Grant
Filed:
September 19, 2018
Date of Patent:
July 6, 2021
Assignee:
OSRAM OLED GmbH
Inventors:
Christoph Eichler, Matthias Peter, Jan Wagner
Abstract: An optoelectronic lighting apparatus includes a reflector having a reflector face, an optical component arranged at a distance from the reflector face and opposite the reflector face, and a light-emitting component arranged on the reflector face and having a light-emitting face, wherein the optical component has a plurality of differently configured reflection elements for reflection, in a direction of the reflector face, of electromagnetic radiation emitted by the light-emitting face.
Abstract: An optoelectronic device is disclosed. In an embodiment an optoelectronic device includes a primary radiation source configured to emit an electromagnetic primary radiation during operation of the device and a conversion element arranged in a beam path of the electromagnetic primary radiation, wherein the conversion element includes quantum dots configured to at least partially convert the electromagnetic primary radiation into an electromagnetic secondary radiation during operation of the device, and wherein the quantum dots have a diameter of 50 nm inclusive to 500 nm inclusive.
Type:
Grant
Filed:
September 7, 2017
Date of Patent:
July 6, 2021
Assignee:
OSRAM OLED GMBH
Inventors:
Tansen Varghese, David O'Brien, Georg Roßbach
Abstract: A method of manufacturing an optoelectronic semiconductor chip includes providing a growth substrate, growing a semiconductor layer sequence on the growth substrate, depositing a metallization on a side of the semiconductor layer sequence remote from the growth substrate, depositing a layer on the metallization, coupling a carrier to the layer on a side of the layer remote from the semiconductor layer sequence, separating the growth substrate from the semiconductor layer sequence, depositing an electrically conductive layer on a side of the semiconductor layer sequence facing away from the carrier, separating the carrier from the layer, thereby forming a layer stack with the metallization, the semiconductor layer sequence, the electrically conductive layer and a coupling layer including at least a part of a further material of the layer remaining on a side of the metallization remote from the semiconductor layer sequence, and coupling the layer stack to a chip carrier.
Abstract: An arrangement for operating radiation emitting devices includes a plurality of radiation emitting devices each having a first capacitance, a driver circuit that supplies the devices with electrical energy, and a compensation structure having a variable second capacitance corresponding to each device and means for adjusting the respective second capacitance, the compensation structure being connected to the device such that a total capacitance assigned to a device and dependent on the first capacitance can be adjusted by the second capacitance.
Abstract: A method for producing a semiconductor chip and a semiconductor chip are disclosed. In an embodiment, the method includes providing a semiconductor layer sequence having a first semiconductor layer and a second semiconductor layer, wherein the first semiconductor layer is formed as a p-conducting semiconductor region and the second semiconductor layer is formed as an n-conducting semiconductor region, or vice versa, forming at least one recess in the semiconductor layer sequence so that side surfaces of the first and second semiconductor layers are exposed, wherein the recess is multiple times wider than deep and applying an auxiliary layer for electrically contacting the second semiconductor layer, wherein the auxiliary layer at the side surfaces exposed.
Abstract: A composite material includes at least one photoluminescent material embedded as a light source in a transparent matrix, wherein a refractive index (nP) of the at least one photoluminescent material and a refractive index (nM) of the matrix differ by at most ±0.2.
Abstract: A multilayer encapsulation, a method for encapsulating and an optoelectronic component are disclosed. In an embodiment an optoelectronic component includes a first electrode layer, an organic light-emitting layer stack abutting the first electrode layer, a second electrode layer abutting the light-emitting layer stack and a multilayer encapsulation abutting the second electrode layer, wherein the multilayer encapsulation comprises a barrier layer and a planarization layer, wherein the planarization layer abuts the second electrode layer, and wherein the planarization layer is arranged between the second electrode layer and the barrier layer.
Type:
Grant
Filed:
March 25, 2020
Date of Patent:
June 22, 2021
Assignee:
OSRAM OLED Gmbh
Inventors:
Sebastian Wittmann, Arne Fleissner, Erwin Lang
Abstract: An optoelectronic semiconductor chip includes a plurality of core-shell rods that generate electromagnetic radiation spaced apart from each other; a first electrically conductive contact structure for n-side electrical contacting of the core-shell rods; and a second electrically conductive contact structure for p-side electrical contacting of the core-shell rods, wherein the first electrically conductive contact structure and the second electrically conductive contact structure overlap at least in sections in a vertical direction, the optoelectronic semiconductor chip is surface mountable on a mounting side, and at least a partial region of the two electrically conductive contact structures extends through a breakthrough through at least one layer of the optoelectronic semiconductor chip.