Patents Assigned to OSRAM OLED GmbH
  • Patent number: 12051768
    Abstract: An optoelectronic semiconductor component comprises a first semiconductor layer of a first conductivity type having a first main surface and a second semiconductor layer of a second conductivity type arranged on a side facing away from the first main surface of the first semiconductor layer. The optoelectronic semiconductor component further comprises, on the side of the first main surface, a first current spreading structure electrically connected to the first semiconductor layer and a second current spreading structure electrically connected to the second semiconductor layer. The optoelectronic semiconductor component furthermore includes a dielectric mirror layer arranged on the side of the first main surface of the first semiconductor layer and on a side of the first or second current spreading structure facing away from the first semiconductor layer. At least one of the first and second current spreading structures contains silver.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: July 30, 2024
    Assignee: OSRAM OLED GmbH
    Inventors: Fabian Kopp, Attila Molnar, Franz Eberhard
  • Patent number: 12034271
    Abstract: An optoelectronic semiconductor device may include a first array of first optoelectronic components and a second array of second optoelectronic components arranged in a substrate. The first optoelectronic components may each include a first resonator mirror and a second resonator mirror where the first resonator mirror has a first main surface and an active area suitable for generating radiation. Each resonator mirror is arranged one above the other along a first direction where radiation emitted by the optoelectronic component is emitted via the first main surface. The first optoelectronic components are suitable for emitting electromagnetic radiation. The second optoelectronic components may each include an active area suitable for generating radiation and are suitable for absorbing electromagnetic radiation.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: July 9, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Florian Lex, Thomas Kippes, Michael Mueller, Fabian Knorr, Zeljko Pajkic
  • Patent number: 12027817
    Abstract: The invention relates to a laser chip located between a first and a second electrically and thermally conductive component, wherein: a first lateral surface of the laser chip is connected in a planar manner to a first lateral surface of the first component; the second lateral surface of the laser chip is connected in a planar manner to a first lateral surface of the second component; the laser chip has a radiation side which is located between the components; the radiation side is arranged set back inwardly at a predefined distance from the first end faces of the components; and a radiation space, which extends from the radiation side of the laser chip to the first end faces of the components is formed between the first lateral surfaces of the two components and adjacent to the radiation side of the laser chip.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: July 2, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Thomas Schwarz, Jörg Sorg
  • Patent number: 12027503
    Abstract: A component having a carrier and at least one main body where the main body may include a semiconductor body and the carrier may have a mounting surface for arranging the mounting body thereon. A stopping structure may be arranged on the mounting surface and may project vertically beyond the mounting surface. The main body may be directly adjacent to the stopping structure such that the position of the main body is bounded along at least one lateral direction by the stopping structure.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 2, 2024
    Assignee: OSRAM OLED GmbH
    Inventor: Alexander F. Pfeuffer
  • Publication number: 20240204139
    Abstract: In one embodiment, the optoelectronic semiconductor chip includes a semiconductor layer sequence with an active zone for generating radiation with a wavelength of maximum intensity L. A mirror includes a cover layer. The cover layer is made of a material transparent to the radiation and has an optical thickness between 0.5 L and 3 L inclusive. The cover layer is followed in a direction away from the semiconductor layer sequence by between inclusive two and inclusive ten intermediate layers of the mirror. The intermediate layers alternately have high and low refractive indices. An optical thickness of at least one of the intermediate layers is not equal to L/4. The intermediate layers are followed in the direction away from the semiconductor layer sequence by at least one metal layer of the mirror as a reflection layer.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Applicant: OSRAM OLED GmbH
    Inventors: Anna Strozecka-Assig, Johannes Saric
  • Publication number: 20240204138
    Abstract: In one embodiment, the optoelectronic semiconductor chip includes a semiconductor layer sequence with an active zone for generating radiation with a wavelength of maximum intensity L. A mirror includes a cover layer. The cover layer is made of a material transparent to the radiation and has an optical thickness between 0.5 L and 3 L inclusive. The cover layer is followed in a direction away from the semiconductor layer sequence by between inclusive two and inclusive ten intermediate layers of the mirror. The intermediate layers alternately have high and low refractive indices. An optical thickness of at least one of the intermediate layers is not equal to L/4. The intermediate layers are followed in the direction away from the semiconductor layer sequence by at least one metal layer of the mirror as a reflection layer.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Applicant: OSRAM OLED GmbH
    Inventors: Anna Strozecka-Assig, Johannes Saric
  • Patent number: 12015107
    Abstract: In one embodiment, the optoelectronic semiconductor chip comprises a semiconductor layer sequence with an active zone for generating a radiation. The semiconductor layer sequence is based on AlInGaP and/or on AlInGaAs. A metal mirror for the radiation is located on a rear side of the semiconductor layer sequence opposite a light extraction side. A protective metallization is applied directly to a side of the metal mirror facing away from the semiconductor layer sequence. An adhesion promoting layer is located directly on a side of the metal mirror facing the semiconductor layer sequence. The adhesion promoting layer is an encapsulation layer for the metal mirror, so that the metal mirror is encapsulated at least at one outer edge by the adhesion promoting layer together with the protective metallization.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: June 18, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Sebastian Pickel, Johannes Saric, Wolfgang Schmid, Anna Strozecka-Assig, Johannes Baur
  • Patent number: 12009460
    Abstract: The invention relates to a method for producing a conversion element having the following steps: providing a frame having an opening; applying a sacrificial layer at least to a side surface of the at least one opening; applying a reflective layer to the sacrificial layer; introducing a conversion material into the at least one opening, the conversion material covering the reflective layer; and removing the sacrificial layer and the frame.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 11, 2024
    Assignee: Osram OLED GmbH
    Inventor: Luca Haiberger
  • Patent number: 11984704
    Abstract: In an embodiment, the gain-guided semiconductor laser includes a semiconductor layer sequence and electrical contact pads. The semiconductor layer sequence includes an active zone for radiation generation, a waveguide layer, and a cladding layer. The semiconductor layer sequence further includes a current diaphragm layer which is electrically conductive along a resonator axis (R) in a central region and electrically insulating in adjoining edge regions. Transverse to the resonator axis (R), the central region includes a width of at least 10 ?m and the edge regions includes at least a minimum width. The minimum width is 3 ?m or more. Seen in plan view, the semiconductor layer sequence as well as at least one of the contact pads on the semiconductor layer sequence are continuous components extending in the central region as well as on both sides at least up to the minimum width in the direction transverse to the resonator axis (R) adjoining the central region and beyond the central region.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: May 14, 2024
    Assignee: OSRAM OLED GMBH
    Inventor: Jens Ebbecke
  • Patent number: 11979000
    Abstract: Surface-emitting semiconductor laser chip (1) comprising a carrier (20), a layer stack (10) arranged on the carrier (20) and having a layer plane (L) extending perpendicularly to the stacking direction (R), a front side contact (310) and a rear side contact (320), in which in operation a predetermined distribution of a current density (I) is achieved by means of current constriction in the layer stack (10), wherein in the carrier (20) an electrical through-connection (200) is provided, which extends from a bottom surface (20a) of the carrier (20) facing away from the layer stack (10) to a surface of the carrier (20) facing the layer stack (10), and the distribution of the current density (I) is significantly influenced by the shape and size of the cross-section of the through-connection (200) parallel to the layer plane (L) on the surface facing the layer stack.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 7, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Tilman Rügheimer, Hubert Halbritter
  • Patent number: 11973317
    Abstract: In an embodiment, the semiconductor laser (1) comprises a semiconductor layer sequence (2) in which an active zone (22) for generating laser radiation (L) is located. Several electrical contact surfaces (5) serve for external electrical contacting of the semiconductor layer sequence (2). Several parallel ridge waveguides (3) are formed from the semiconductor layer sequence (2) and configured to guide the laser radiation (L) along a resonator axis, so that there is a separating trench (6) between adjacent ridge waveguides. At least one electrical feed (4) serves from at least one of the electrical contact surfaces (5) to guide the current to at least one of the ridge waveguides (3). A distance (A4) between the ridge waveguides is at most 50 ?m. The ridge waveguides (3) are electrically controllable individually or in groups independently of one another and/or configured for single-mode operation.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: April 30, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Jan Marfeld, André Somers, Andreas Löffler, Sven Gerhard
  • Patent number: 11961820
    Abstract: A method for producing a connection between component parts and a component made of component parts are disclosed. In an embodiment, a includes providing a first component part having a first exposed insulation layer and a second component part having a second exposed insulation layer, wherein each of the insulation layers has at least one opening, joining together the first and second component parts such that the opening of the first insulation layer and the opening of the second insulation layer overlap in top view, wherein an Au layer and a Sn layer are arranged one above the other in at least one of the openings and melting the Au layer and the Sn layer to form an AuSn alloy, wherein the AuSn alloy forms a through-via after cooling electrically conductively connecting the first component part to the second component part.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: April 16, 2024
    Assignee: OSRAM OLED GmbH
    Inventors: Simeon Katz, Mathias Wendt, Sophia Huppmann, Marcus Zenger, Jens Mueller
  • Patent number: 11955767
    Abstract: In an embodiment a radiation-emitting component includes a first semiconductor chip configured to generate first primary electromagnetic radiation, a second semiconductor chip configured to generate second primary electromagnetic radiation, a first conversion element configured to partially convert the first and/or the second primary electromagnetic radiation into a first secondary radiation, wherein the first semiconductor chip is a first semiconductor laser diode, wherein the first primary electromagnetic radiation is blue primary radiation and wherein the first secondary radiation is green secondary radiation and a first optical element arranged between radiation emitting surfaces of the first semiconductor chip and the second semiconductor chip, wherein the first optical element is reflective for the first primary radiation and the second primary radiation.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 9, 2024
    Assignee: OSRAM OLED GmbH
    Inventors: Jörg Erich Sorg, David Racz
  • Patent number: 11949052
    Abstract: In an embodiment, the optoelectronic semiconductor component (1) comprises a semiconductor layer sequence (2) with an active zone (22) for generating a radiation. On an bottom side (20) of the semiconductor layer sequence (2) there is an electrically insulating separation layer (3) with several openings (32). An adhesion-promoting layer (4) is located next to the openings (32) on a side of the separation layer (3) facing away from the semiconductor layer sequence (2). A continuous metallization layer (5) is located on a side of the adhesion-promoting layer (4) facing away from the semiconductor layer sequence (2). The semiconductor layer sequence (2) is electrically contacted in the openings (32) directly by the metallization layer (5). The metallization layer (5) and the openings (32) are spaced from the active zone (22) in the direction perpendicular to the separation layer (3).
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: April 2, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Benjamin Reuters, Johannes Saric, Jens Müller
  • Patent number: 11949054
    Abstract: An optoelectronic semiconductor component may include a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, a first contact element for making contact with the first semiconductor layer, and a second contact element for making contact with the second semiconductor layer. The first semiconductor layer may be arranged on a side facing away from a first main surface of the second semiconductor layer. Electromagnetic radiation may be output via the first main surface of the second semiconductor layer. The first contact element and the second contact element may each be arranged on a side of a first main surface of the first semiconductor layer. The first contact element may have a first section extending in a first direction, and a second section connected to the first section and extending in a second direction different from the first direction.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: April 2, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Wolfgang Schmid, Christoph Klemp, Isabel Otto
  • Patent number: 11942763
    Abstract: In one embodiment, the semiconductor laser (1) comprises a semiconductor layer sequence (2) based on the material system AlInGaN with at least one active zone (22) for generating laser radiation. A heat sink (3) is thermally connected to the semiconductor layer sequence (2) and has a thermal resistance towards the semiconductor layer sequence (2). The semiconductor layer sequence (2) is divided into a plurality of emitter strips (4) and each emitter strip (4) has a width (b) of at most 0.3 mm in the direction perpendicular to a beam direction (R). The emitter strips (4) are arranged with a filling factor (FF) of less than or equal to 0.4. The filling factor (FF) is set such that laser radiation having a maximum optical output power (P) can be generated during operation.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: March 26, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Harald König, Bernhard Stojetz, Alfred Lell, Muhammad Ali
  • Patent number: 11942572
    Abstract: The invention relates to a method for producing a semiconductor component comprising a radiation-emitting optical semiconductor chip or a plurality of radiation-emitting optical semiconductor chips, said method comprising: applying the radiation-emitting optical semiconductor chip or the plurality of radiation-emitting optical semiconductor chips to a deformable flat support deforming the support; and permanently fixing the deformation.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: March 26, 2024
    Assignee: OSRAM OLED GMBH
    Inventors: Siegfried Herrmann, Michael Völkl
  • Patent number: 11935755
    Abstract: A semiconductor laser includes a substrate having a semiconductor layer sequence with an active layer that generates light during operation of the semiconductor laser, and a contact layer on a bottom side of the substrate opposite the semiconductor layer sequence, wherein the contact layer has at least one first partial region and at least one second partial region which are formed contiguously, the at least one first partial region is annealed, and the at least one second partial region is unannealed.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: March 19, 2024
    Assignee: OSRAM OLED GmbH
    Inventors: Alfred Lell, Georg Brüderl, John Brückner, Sven Gerhard, Muhammad Ali, Thomas Adlhoch
  • Publication number: 20240088622
    Abstract: In one embodiment the semiconductor laser comprises a carrier and an edge-emitting laser diode which is mounted on the carrier and which comprises an active zone for generating a laser radiation and a facet with a radiation exit region. The semiconductor laser further comprises a protective cover, preferably a lens for collimation of the laser radiation. The protective cover is fastened to the facet and to a side surface of the carrier by means of an adhesive. A mean distance between a light entrance side of the protective cover and the facet is at most 60 ?m. The semiconductor laser is configured to be operated in a normal atmosphere without additional gas-tight encapsulation.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: OSRAM OLED GmbH
    Inventors: Jörg Erich SORG, Harald KÖNIG, Alfred LELL, Florian PESKOLLER, Karsten AUEN, Roland SCHULZ, Herbert BRUNNER, Frank SINGER, Roland HÜTTINGER
  • Patent number: 11929455
    Abstract: An optoelectronic component may include a layer sequence having an active layer configured to emit an electromagnetic primary radiation and a conversion element arranged in the beam path of the primary radiation. The conversion element may include a conversion layer and a conversion potting arranged over the conversion layer. The conversion layer may include a first matrix material and a converter material, and the conversion potting may include a second matrix material and a converter material. There may be a jump in concentration of converter material between the conversion layer and the conversion potting.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: March 12, 2024
    Assignee: OSRAM OLED GmbH
    Inventor: Norbert Harendt