Patents by Inventor Uwe Strauss
Uwe Strauss 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: 8976829Abstract: An edge-emitting semiconductor laser is specified. A semiconductor body includes an active zone suitable for producing electromagnetic radiation. At least two facets on the active zone form a resonator. At least two contact points are spaced apart from one another in a lateral direction by at least one intermediate region and are mounted on an outer face of the semiconductor body.Type: GrantFiled: May 9, 2011Date of Patent: March 10, 2015Assignee: Osram Opto Semiconductors GmbHInventors: Harald Koenig, Uwe Strauss, Wolfgang Reill
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Publication number: 20150063395Abstract: An optoelectronic semiconductor chip, based on a nitride material system, comprising at least one active quantum well, wherein during operation electromagnetic radiation is generated in the active quantum well, the active quantum well comprises N successive zones in a direction parallel to a growth direction z of the semiconductor chip, N being a natural number greater than or equal to 2, the zones are numbered consecutively in a direction parallel to the growth direction z, at least two of the zones have average aluminium contents k which differ from one another, and the active quantum well fulfils the condition: 50??(35?k(z))dz?2.5N?1.5?dz?120.Type: ApplicationFiled: November 6, 2014Publication date: March 5, 2015Inventors: Adrian AVRAMESCU, Désirée Queren, Christoph Eichler, Matthias Sabathil, Stephan Lutgen, Uwe Strauss
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Publication number: 20150003042Abstract: A conversion element (10) is specified, comprising a scattering layer (12), a reflection layer (14), and a conversion layer (16) arranged between the scattering layer (12) and the reflection layer (14). The scattering layer (12) is designed to transmit a first portion (20) of a primary radiation (18) impinging on it from a side facing away from the conversion layer (16) into the conversion layer (16), and to scatter a second portion (22) of the primary radiation (18) impinging on it towards that side of the scattering layer (12) which faces away from the conversion layer (16). The conversion layer (16) comprises at least one conversion means (25) which is designed to convert at least part of the first portion of the primary radiation (18) into a second radiation (19) having a higher wavelength different from the primary radiation (18). The reflection layer (14) has a reflective effect at least with regard to the second radiation (19).Type: ApplicationFiled: February 22, 2013Publication date: January 1, 2015Inventor: Uwe Strauß
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Publication number: 20140362883Abstract: A laser diode assembly includes a housing having a housing part and a mounting part, which is connected to the housing part and which extends away from the housing part along an extension direction. A laser diode chip is disposed on the mounting part. The laser diode chip has, on a substrate, semiconductor layers with an active layer for emitting light. The housing part and the mounting part have a main body composed of copper and at least the housing part is steel-sheathed. A first solder layer having a thickness of greater than or equal to 2 ?m is arranged between the laser diode chip and the mounting part. The laser diode chip has a radiation coupling-out area, on which a crystalline protective layer is applied.Type: ApplicationFiled: April 29, 2014Publication date: December 11, 2014Inventors: Alfred Lell, Uwe Strauss, Soenke Tautz, Clemens Vierheilig
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Patent number: 8908733Abstract: In at least one embodiment of the optoelectronic semiconductor chip (1), the latter is based on a nitride material system and comprises at least one active quantum well (2). The at least one active quantum well (2) is designed to generate electromagnetic radiation when in operation. Furthermore, the at least one active quantum well (2) comprises N successive zones (A) in a direction parallel to a growth direction z of the semiconductor chip (1), N being a natural number greater than or equal to 2. At least two of the zones (A) of the active quantum well (2) have mutually different average indium contents c. Furthermore the at least one active quantum well (2) fulfills the condition: 40??c(z)dz?2.5N?1.5?dz?80.Type: GrantFiled: March 10, 2010Date of Patent: December 9, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Adrian Avramescu, Désirée Queren, Christoph Eichler, Matthias Sabathil, Stephan Lutgen, Uwe Strauss
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Patent number: 8897327Abstract: A laser diode device including a housing having a mounting area in a cavity of the housing, at least one laser diode chip that emits electromagnetic radiation through a radiation exit area during operation, at least one covering element which is transmissive, at least in places, to the electromagnetic radiation generated by the laser diode chip during operation, and a deflection element, that directs at least part of the electromagnetic radiation generated by the laser diode chip during operation in a direction of the covering element, wherein the radiation exit area of the laser diode chip runs substantially transversely or substantially perpendicularly with respect to the mounting area and/or with respect to the covering element, the covering element connects to the housing, and the covering element tightly closes the housing.Type: GrantFiled: April 15, 2013Date of Patent: November 25, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Karsten Auen, Uwe Strauss, Thomas Höfer
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Publication number: 20140341247Abstract: A laser diode device has a housing with a mounting part and a laser diode chip, which is based on a nitride compound semi-conductor material, in the housing on the mounting part. The laser diode chip is mounted directly on the mounting part by means of a solder layer and the solder layer has a thickness of greater than or equal to 3 ?m.Type: ApplicationFiled: March 11, 2013Publication date: November 20, 2014Inventors: Uwe Strauß, Sönke Tautz, Alfred Lell, Clemens Vierheilig
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Publication number: 20140334508Abstract: A semiconductor laser diode is provided. A semiconductor layer sequence has semiconductor layers applied vertically one above the other. An active layer includes an active region having a width of greater than or equal to 30 ?m emitting laser radiation during operation via a radiation coupling-out surface. The radiation coupling-out surface is formed by a lateral surface of the semiconductor layer sequence and forms, with an opposite rear surface, a resonator having lateral gain-guiding in a longitudinal direction. The semiconductor layer sequence is heated in a thermal region of influence by reason of the operation.Type: ApplicationFiled: November 12, 2012Publication date: November 13, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Christian Lauer, Harald König, Uwe Strauß, Alexander Bachmann
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Patent number: 8867582Abstract: A laser diode assembly includes a housing having a housing part and a mounting part that is connected to the housing part and that extends away from the housing part along an extension direction. A laser diode chip is disposed on the mounting part. The laser diode chip has, on a substrate, semiconductor layers with an active layer for emitting light. The housing part and the mounting part have a main body composed of copper and at least the housing part is steel-sheathed. A first solder layer having a thickness of greater than or equal to 3 ?m is arranged between the laser diode chip and the mounting part.Type: GrantFiled: April 4, 2013Date of Patent: October 21, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Uwe Strauss, Soenke Tautz, Alfred Lell, Karsten Auen, Clemens Vierheilig
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Patent number: 8831061Abstract: An edge emitting semiconductor laser chip includes a semiconductor body, which comprises at least one active zone in which electromagnetic radiation is generated during the operation of the semiconductor laser chip. At least one contact strip is arranged on a top surface at a top side of the semiconductor body. At least two delimiting structures are for delimiting the current spreading between the contact strip and the active zone. The delimiting structures are arranged on both sides of the contact strip.Type: GrantFiled: October 21, 2009Date of Patent: September 9, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Christian Lauer, Harald König, Wolfgang Reill, Uwe Strauss
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Patent number: 8737445Abstract: A laser diode assembly includes a housing having a housing part and a mounting part, which is connected to the housing part and which extends away from the housing part along an extension direction. A laser diode chip is disposed on the mounting part. The laser diode chip has, on a substrate, semiconductor layers with an active layer for emitting light. The housing part and the mounting part have a main body composed of copper and at least the housing part is steel-sheathed. A first solder layer having a thickness of greater than or equal to 2 ?m is arranged between the laser diode chip and the mounting part. The laser diode chip has a radiation coupling-out area, on which a crystalline protective layer is applied.Type: GrantFiled: April 4, 2013Date of Patent: May 27, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Alfred Lell, Soenke Tautz, Uwe Strauss, Clemens Vierheilig
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Patent number: 8711893Abstract: An optoelectronic component contains an epitaxial layer sequence based on a nitride compound semiconductor having an active layer and an epitaxial growth substrate comprising Al1-xGaxN, where 0<x<0.95. In a method for producing an optoelectronic component an epitaxial growth substrate of Al1-x(InyGa1-y)xN or In1-xGaxN, where 0<x<0.99 and 0?y?1, is provided and an epitaxial layer sequence, which is based on a nitride compound semiconductor and contains an active layer, is grown thereon.Type: GrantFiled: January 28, 2009Date of Patent: April 29, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Adrian Stefan Avramescu, Christoph Eichler, Uwe Strauss, Volker Haerle
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Publication number: 20140045279Abstract: A method can be used to produce a semiconductor component. A semiconductor layer sequence has an active region that is provided for generating radiation and also has an indicator layer. Material of the semiconductor layer sequence that is arranged on that side of the indicator layer that is remote from the active region is removed in regions. The material is removed using a dry-chemical removal of the semiconductor layer sequence. A property of a process gas is monitored during the removal to determine that the indicator layer has been reached based on a change in the property of the process gas.Type: ApplicationFiled: October 22, 2013Publication date: February 13, 2014Inventors: Christoph Eichler, Uwe Strauss
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Patent number: 8581280Abstract: An optoelectronic semiconductor chip (1) having a semiconductor layer sequence (2), which comprises an active region (3) suitable for generating radiation and has a lateral main extension direction. The semiconductor layer sequence is arranged by a substrate (4) having a side surface (17), the side surface has a side surface region (18) that is beveled with respect to the main extension direction, and/or a cutout (21), and the semiconductor chip has a radiation-transmissive and electrically conductive contact layer (5).Type: GrantFiled: December 20, 2006Date of Patent: November 12, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Michael Fehrer, Uwe Strauss
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Patent number: 8564185Abstract: A semiconductor light source is provided, the semiconductor light source having a primary radiation source (1) which, when the semiconductor light source is operated, emits electromagnetic primary radiation (5) in a first wavelength range, and having a luminescence conversion module (2) into which primary radiation (5) emitted by the primary radiation source (1) is fed. The luminescence conversion module (2) contains a luminescence conversion element (6) which, by means of a luminescent material, absorbs primary radiation (5) from the first wavelength range and emits electromagnetic secondary radiation (15) in a second wavelength range. The luminescence conversion element (6) is arranged on a heat sink (3) at a distance from the primary radiation source (1).Type: GrantFiled: September 11, 2008Date of Patent: October 22, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Hubert Ott, Alfred Lell, Sönke Tautz, Uwe Strauss, Frank Baumann, Kirstin Petersen
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Patent number: 8565278Abstract: A semiconductor component includes a semiconductor body with a semiconductor layer sequence having an active region, provided for generating coherent radiation, and an indicator layer. With respect to an interface which delimits the semiconductor body in regions in a vertical direction, on that side of said interface which is remote from the active region, the semiconductor body has a web-like region extending in a vertical direction between the interface and a surface of the semiconductor body. The indicator layer has a material composition that differs from that of the material of the web-like region which adjoins the indicator layer. A distance between the indicator layer and the surface is at most of the same magnitude as a distance between the interface and the surface.Type: GrantFiled: March 9, 2009Date of Patent: October 22, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Christoph Eichler, Uwe Strauss
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Publication number: 20130272333Abstract: A laser diode device is specified, comprising a housing having a mounting part and a laser diode chip based on a nitride compound semiconductor material in the housing on the mounting part, wherein the laser diode chip is mounted directly on the mounting part using a solder layer, and the solder layer has a thickness of greater than or equal to 3 ?m.Type: ApplicationFiled: April 9, 2013Publication date: October 17, 2013Inventors: Uwe Strauss, Soenke Tautz, Alfred Lell, Clemens Vierheilig
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Publication number: 20130272329Abstract: A laser diode device including a housing having a mounting area in a cavity of the housing, at least one laser diode chip that emits electromagnetic radiation through a radiation exit area during operation, at least one covering element which is transmissive, at least in places, to the electromagnetic radiation generated by the laser diode chip during operation, and a deflection element, that directs at least part of the electromagnetic radiation generated by the laser diode chip during operation in a direction of the covering element, wherein the radiation exit area of the laser diode chip runs substantially transversely or substantially perpendicularly with respect to the mounting area and/or with respect to the covering element, the covering element connects to the housing, and the covering element tightly closes the housing.Type: ApplicationFiled: April 15, 2013Publication date: October 17, 2013Applicant: OSRAM Opto Semiconductors GmbHInventors: Karsten Auen, Uwe Strauss, Thomas Höfer
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Publication number: 20130266035Abstract: A housing for an optoelectronic semiconductor component includes a housing body having a mounting plane and a leadframe with a first connection conductor and a second connection conductor. The housing body deforms the leadframe in some regions. The leadframe has a main extension plane which extends obliquely or perpendicularly with respect to the mounting plane. A semiconductor component having such a housing and a semiconductor chip and a method for producing a housing are also disclosed.Type: ApplicationFiled: September 13, 2011Publication date: October 10, 2013Applicant: OSRAM Opto Semiconductors GmbHInventors: Uwe Strauss, Markus Arzberger
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Patent number: 8536603Abstract: An optoelectronic semiconductor chip having a semiconductor layer sequence with a plurality of layers arranged over one another includes an active layer with an active region which emits electromagnetic radiation in an emission direction when in operation, a first grating layer on the active layer which, in an emission direction, has a plurality of stripes in the form of grating lines extending perpendicularly to the emission direction with spaces arranged therebetween, and a second grating layer on the first grating layer which covers the stripes of the first grating layer and the spaces and which comprises a transparent material applied by non-epitaxial application.Type: GrantFiled: October 12, 2009Date of Patent: September 17, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Illek, Uwe Strauss