Patents by Inventor Karl Engl

Karl Engl 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).

  • Publication number: 20130313604
    Abstract: A method for producing a light-emitting semiconductor component is specified. A light-emitting semiconductor chip is arranged on a mounting area of a carrier. The semiconductor chip is electrically connected to electrical contact regions on the mounting area. An encapsulation layer is applied to the semiconductor chip by means of atomic layer deposition. All surfaces of the semiconductor chip which are free after mounting and electrical connection are covered with an encapsulation layer. Furthermore, a light-emitting semiconductor component is specified.
    Type: Application
    Filed: April 11, 2012
    Publication date: November 28, 2013
    Applicant: OSRAM OPTO SEMICONDUCTORS GmbH
    Inventors: Karl Engl, Richard Baisl, Tilman Schlenker, Lutz Hoeppel, Sebastian Taeger, Christian Gaertner
  • Patent number: 8530923
    Abstract: A light-emitting diode chip (1) with a semiconductor layer sequence (2) is described, which is contacted electrically by contacts (5) via a current spreading layer (3). The contacts (5) cover around 1%-8% of the surface of the semiconductor layer sequence (2). The contacts (5) consist for example of separate contact points (51), which are arranged at the nodes of a regular grid (52) with a grid constant of 12 ?m. The current spreading layer (3) contains for example indium-tin oxide, indium-zinc oxide or zinc oxide and has a thickness in the range from 15 nm to 60 nm.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: September 10, 2013
    Assignee: OSRAM Opto Semiconductor GmbH
    Inventors: Matthias Sabathil, Lutz Hoeppel, Andreas Weimar, Karl Engl, Johannes Baur
  • Publication number: 20130228819
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence and a carrier substrate. A first and a second electrical contact layer are arranged at least in regions between the carrier substrate and the semiconductor layer sequence and are electrically insulated from one another by an electrically insulating layer. A mirror layer is arranged between the semiconductor layer sequence and the carrier substrate. The minor layer adjoins partial regions of the first electrical contact layer and partial regions of the electrically insulating layer. The partial regions of the electrically insulating layer which adjoin the mirror layer are covered by the second electrical contact layer in such a way that at no point do they adjoin a surrounding medium of the optoelectronic semiconductor chip.
    Type: Application
    Filed: August 22, 2011
    Publication date: September 5, 2013
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Karl Engl, Markus Maute, Andreas Weimar, Lutz Hoeppel, Patrick Rode, Juergen Moosburger, Norwin von Malm
  • Patent number: 8526476
    Abstract: A semiconductor chip with a semiconductor body has a semiconductor layer sequence with an active region provided for generating radiation. A mirror structure that includes a mirror layer and a dielectric layer that is arranged at least in regions between the mirror layer and semiconductor body is arranged on the semiconductor body.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: September 3, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Karl Engl, Lutz Hoeppel, Christoph Eichler, Matthias Sabathil, Andreas Weimar
  • Publication number: 20130221390
    Abstract: A light-emitting diode chip having a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light-emitting diode chip has, on a front side, a radiation exit surface, at least regions of the light-emitting diode chip have, on a rear side opposite the radiation exit surface, a mirror layer containing silver, a protective layer containing Pt is disposed on the mirror layer, and the protective layer has a structure that covers the mirror layer only in sub-regions.
    Type: Application
    Filed: August 24, 2011
    Publication date: August 29, 2013
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Karl Engl, Markus Maute, Stefanie Rammelsberger
  • Publication number: 20130187183
    Abstract: A light-emitting diode chip is specified, comprising an n-conducting region (1), a p-conducting region (2), an active region (3) between the n-conducting region (1) and the p-conducting region (2), a mirror layer (4) at that side of the p-conducting region (2) which is remote from the active region (3), an encapsulation layer (5) at that side of the mirror layer (4) which is remote from the p-conducting region (2), and a contact layer (6) at a side of the encapsulation layer (5) which is remote from the mirror layer (4), wherein the encapsulation layer (5) extends along a bottom area (43) of the mirror layer (4) which is remote from the p-conducting region (2) and a side area (42) of the mirror layer (4) which runs transversely with respect to the bottom area (43), and the contact layer (6) is freely accessible in places from its side facing the n-conducting region (1).
    Type: Application
    Filed: July 25, 2011
    Publication date: July 25, 2013
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Lutz Höppel, Karl Engl
  • Publication number: 20130146910
    Abstract: A light emitting diode chip includes a semiconductor layer sequence, the semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side. At a rear side lying opposite the radiation exit area, the light emitting diode chip has, at least in regions, a mirror layer containing silver. A functional layer that reduces corrosion and/or improves adhesion of the mirror layer is arranged on the mirror layer, wherein a material from which the functional layer is formed is also distributed in the entire mirror layer. The material of the functional layer has a concentration gradient in the mirror layer, wherein the concentration of the material of the functional layer in the mirror layer decreases proceeding from the functional layer in the direction toward the semiconductor layer sequence.
    Type: Application
    Filed: February 15, 2011
    Publication date: June 13, 2013
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Markus Maute, Karl Engl, Stefanie Rammelsberger, Nikolaus Gmeinwieser, Johann Eibl
  • Patent number: 8450751
    Abstract: An optoelectronic semiconductor body includes a semiconductor layer sequence which has an active layer suitable for generating electromagnetic radiation, and a first and a second electrical connecting layer. The semiconductor body is provided for emitting electromagnetic radiation from a front side. The first and the second electrical connecting layer are arranged at a rear side opposite the front side and are electrically insulated from one another by means of a separating layer. The first electrical connecting layer, the second electrical connecting layer and the separating layer laterally overlap and a partial region of the second electrical connecting layer extends from the rear side through a breakthrough in the active layer in the direction of the front side. Furthermore, a method for producing such an optoelectronic semiconductor body is specified.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 28, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Karl Engl, Patrick Rode, Lutz Hoeppel, Matthias Sabathil
  • Patent number: 8420439
    Abstract: A method of producing a radiation-emitting thin film component includes providing a substrate, growing nanorods on the substrate, growing a semiconductor layer sequence with at least one active layer epitaxially on the nanorods, applying a carrier to the semiconductor layer sequence, and detaching the semiconductor layer sequence and the carrier from the substrate by at least partial destruction of the nanorods.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: April 16, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Hans-Jürgen Lugauer, Klaus Streubel, Martin Strassburg, Reiner Windisch, Karl Engl
  • Patent number: 8362506
    Abstract: An optoelectronic semiconductor body includes a substrate with a front side for emitting electromagnetic radiation. The optoelectronic semiconductor body has a semiconductor layer sequence that is arranged on a rear side of the substrate and has an active layer suitable for generating the electromagnetic radiation. The optoelectronic semiconductor body also includes first and second electrical connection layers that are arranged on a first surface of the semiconductor body that faces away from the substrate.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: January 29, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Patrick Rode, Karl Engl, Martin Strassburg, Lutz Hoeppel, Matthias Sabathil
  • Publication number: 20120322186
    Abstract: In a method for producing an optoelectronic component, a growth substrate having a first coefficient of thermal expansion is provided. A multilayered buffer layer sequence is applied thereto. A layer sequence having a second coefficient of thermal expansion—different than the first coefficient of thermal expansion—is subsequently deposited epitaxially. It furthermore comprises an active layer for emitting electromagnetic radiation. A carrier substrate is subsequently applied on the epitaxially deposited layer sequence. The growth substrate is removed and the multilayered buffer layer sequence is structured in order to increase a coupling-out of electromagnetic radiation. Finally, contact is made with the epitaxially deposited layer sequence.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 20, 2012
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Patrick Rode, Martin Strassburg, Karl Engl, Lutz Höppel
  • Patent number: 8319250
    Abstract: A radiation-emitting semiconductor chip (1) is provided, which comprises a carrier (5), a semiconductor body (2) with a semiconductor layer sequence, a first contact (35) and a second contact (36). The semiconductor layer sequence comprises an active region (20) provided for generating radiation, which is arranged between a first semiconductor layer (21) and a second semiconductor layer (22). The carrier (5) comprises a major surface (51) facing the semiconductor body (2). The first semiconductor layer (21) is arranged on the side of the active region (20) facing the major surface (51) of the carrier (5) and is electrically contactable by means of the first contact (35). The second semiconductor layer (22) is electrically contactable by means of the second contact (36). A protection diode (4) is formed in a current path extending between the first contact (35) and the second contact (36) through the carrier (5).
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: November 27, 2012
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Patrick Rode, Lutz Hoeppel, Karl Engl, Tony Albrecht
  • Patent number: 8283191
    Abstract: In a method for producing an optoelectronic component, a growth substrate having a first coefficient of thermal expansion is provided. A multilayered buffer layer sequence is applied thereto. A layer sequence having a second coefficient of thermal expansion—different than the first coefficient of thermal expansion—is subsequently deposited epitaxially. It furthermore comprises an active layer for emitting electromagnetic radiation. A carrier substrate is subsequently applied on the epitaxially deposited layer sequence. The growth substrate is removed and the multilayered buffer layer sequence is structured in order to increase a coupling-out of electromagnetic radiation. Finally, contact is made with the epitaxially deposited layer sequence.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: October 9, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Patrick Rode, Martin Strassburg, Karl Engl, Lutz Höppel
  • Publication number: 20120168809
    Abstract: An optoelectronic semiconductor body has a front face provided for the emission and/or reception of electromagnetic radiation, a rear face which lies opposite the front face and is provided for application onto a support plate, and an active semiconductor layer sequence which in the direction from the rear face to the front face includes a layer of a first conductivity type, an active layer and a layer of a second conductivity type in this sequence.
    Type: Application
    Filed: May 21, 2011
    Publication date: July 5, 2012
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Markus Maute, Karl Engl
  • Publication number: 20120086026
    Abstract: An optoelectronic semiconductor body comprises a substantially planar semiconductor layer sequence having a first and a second main side, which has an active layer suitable for generating electromagnetic radiation. Furthermore, the semiconductor body comprises at least one trench that severs the active layer of the semiconductor layer sequence and serves for subdividing the active of the semiconductor layer sequence into at least two electrically insulated active partial layers. A first and second connection layer arranged on a second main side serve for making contact with the active partial layers. In this case, the first and second connection layers for making contact with the at least two active partial layers are electrically conductively connected to one another in such a way that the active partial layers form a series circuit.
    Type: Application
    Filed: February 25, 2009
    Publication date: April 12, 2012
    Inventors: Karl Engl, Patrick Rode, Lutz Hoeppel, Martin Strassburg
  • Publication number: 20120043572
    Abstract: An optoelectronic semiconductor body with a semiconductor layer sequence (1), the semiconductor layer sequence comprising an active layer (100) suitable for the generation of electromagnetic radiation, and a first electrical contact layer (4) is disclosed. The optoelectronic semiconductor body is provided for emiting electromagnetic radiation from a front side (2). The semiconductor layer sequence (1) comprises at least one opening (110) that penetrates fully through the semiconductor layer sequence (1) in the direction from the front side (2) to a rear side (3) that is opposite the front side (2). The first electrical contact layer (4) is arranged at the rear (3) of the semiconductor body, a section (40) of the first electrical contact layer (4) extends from the rear side (3) through the opening (110) to the front side (2) and covers a first sub-region (11) of a front-side main face (10) of the semiconductor layer sequence (1).
    Type: Application
    Filed: September 30, 2009
    Publication date: February 23, 2012
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Karl Engl, Matthias Sabathil
  • Publication number: 20120018763
    Abstract: A radiation-emitting semiconductor chip includes: a carrier and a semiconductor body with a semiconductor layer sequence including an active region that generates radiation, a first semiconductor layer and a second semiconductor layer; wherein the active region is arranged between the first semiconductor layer and the second semiconductor layer; the first semiconductor layer is arranged on a side of the active region which faces away from the carrier; the semiconductor body comprises at least one recess which extends through the active region; the first semiconductor layer is electrically conductively connected to a first connection layer extending in the recess from the first semiconductor layer in a direction of the carrier; and the first connection layer is electrically connected to the second semiconductor layer via a protective diode.
    Type: Application
    Filed: June 25, 2009
    Publication date: January 26, 2012
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Karl Engl, Berthold Hahn, Klaus Streubel, Markus Klein
  • Publication number: 20110272728
    Abstract: A radiation-emitting semiconductor chip (1) is provided, which comprises a carrier (5), a semiconductor body (2) with a semiconductor layer sequence, a first contact (35) and a second contact (36). The semiconductor layer sequence comprises an active region (20) provided for generating radiation, which is arranged between a first semiconductor layer (21) and a second semiconductor layer (22). The carrier (5) comprises a major surface (51) facing the semiconductor body (2). The first semiconductor layer (21) is arranged on the side of the active region (20) facing the major surface (51) of the carrier (5) and is electrically contactable by means of the first contact (35). The second semiconductor layer (22) is electrically contactable by means of the second contact (36). A protection diode (4) is formed in a current path extending between the first contact (35) and the second contact (36) through the carrier (5).
    Type: Application
    Filed: April 17, 2009
    Publication date: November 10, 2011
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Patrick Rode, Lutz Hoeppel, Karl Engl, Tony Albrecht
  • Publication number: 20110260205
    Abstract: A radiation-emitting semiconductor chip includes a carrier and a semiconductor body having a semiconductor layer sequence, wherein an emission region and a protective diode region are formed in the semiconductor body having the semiconductor layer sequence; the semiconductor layer sequence includes an active region that generates radiation, the active region being arranged between a first semiconductor layer and a second semiconductor layer; the first semiconductor layer is arranged on a side of the active region which faces away from the carrier; the emission region has a recess extending through the active region; the first semiconductor layer in the emission region is electrically conductively connected to a first connection layer, wherein the first connection layer extends in the recess from the first semiconductor layer toward the carrier; and the first connection layer in the protective diode region is electrically conductively connected to the second semiconductor layer.
    Type: Application
    Filed: October 29, 2009
    Publication date: October 27, 2011
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Jürgen Moosburger, Norwin Von Malm, Patrick Rode, Lutz Höppel, Karl Engl
  • Publication number: 20110241031
    Abstract: An optoelectronic projection device which generates a predefined image during operation, including a semiconductor body having an active layer that generates electromagnetic radiation and a radiation exit side and is an imaging element of the projection device, wherein, to electrically contact the semiconductor body, a first contact layer and a second contact layer are arranged at a rear side of the semiconductor body, the rear side lying opposite the radiation exit side, and are electrically insulated from one another by a separating layer.
    Type: Application
    Filed: November 27, 2009
    Publication date: October 6, 2011
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Norwin von Malm, Klaus Streubel, Patrick Rode, Karl Engl, Lutz Hoppel, Jurgen Moosburger