Patents by Inventor Mathias Kämpf

Mathias Kämpf 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: 20220013700
    Abstract: In one embodiment, a method includes providing a chip carrier, creating holes for electrical through-connections in the chip carrier, producing a thin metallization in the holes, filling the metallized holes with a filling of a plastic, and applying optoelectronic semiconductor chips on the metallized holes so that the semiconductor chips are ohmically conductively connected with an associated metallization, wherein a mean thickness of the metallization in the holes is between 0.1 ?m and 0.7 ?m, inclusive, and wherein a diameter of the holes exceeds the mean thickness of the metallization by at least a factor of 10.
    Type: Application
    Filed: December 4, 2019
    Publication date: January 13, 2022
    Inventors: Pascal Porten, Mathias Kämpf, Marcus Zenger
  • Patent number: 10276748
    Abstract: Disclosed is a radiation-emitting semi-conductor chip (1) comprising an epitaxial semi-conductor layer sequence (3) which emits electromagnetic radiation in operation. The epitaxial semi-conductor layer sequence (3) is applied on a a transparent substrate (4), wherein the substrate (4) has a first main surface (8) facing the semi-conductor layer sequence (3), a second main surface (9) facing away from the semi-conductor layer sequence (3) and a first lateral flank (10) arranged between the first main surface (8) and the second main surface (9), and the lateral flank (10) has a decoupling structure which is formed in a targeted manner from separating tracks. Also disclosed is a method for producing the semi-conductor chip, and a component comprising such a semi-conductor chip.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: April 30, 2019
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Mathias Kaempf, Simon Jerebic, Ingo Neudecker, Guenter Spath, Michael Huber, Korbinian Perzlmaier
  • Patent number: 10232471
    Abstract: The invention relates to a method for dividing a composite into a plurality of semiconductor chips along a dividing pattern. A composite, which comprises a substrate, a semiconductor layer sequence, and a functional layer, is provided. Separating trenches are formed in the substrate along the dividing pattern. The functional layer is cut through along the dividing pattern by means of coherent radiation. Each divided semiconductor chip has part of the semiconductor layer sequence, part of the substrate, and part of the functional layer. The invention further relates to a semiconductor chip.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 19, 2019
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventor: Mathias Kaempf
  • Patent number: 10224393
    Abstract: A method of producing a plurality of semiconductor chips includes a) providing a carrier substrate having a first major face and a second major face opposite the first major face; b) forming a diode structure between the first major face and the second major face, the diode structure electrically insulating the first major face from the second major face at least with regard to one polarity of an electrical voltage; c) arranging a semiconductor layer sequence on the first major face of the carrier substrate; and d) singulating the carrier substrate with the semiconductor layer sequence into a plurality of semiconductor chips.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: March 5, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ewald Karl Michael Günther, Andreas Plöβl, Heribert Zull, Thomas Veit, Mathias Kämpf, Jens Dennemarck, Bernd Böhm, Korbinian Perzlmaier
  • Patent number: 10115869
    Abstract: The invention relates to an optoelectronic semiconductor chip (10) comprising a carrier (2) and a semiconductor body (1) having an active layer (13) provided for generating electromagnetic radiation. Said carrier (2) has a first main surface (2A) facing the semiconductor body, a second main surface (2B) facing away from the semiconductor body, and a sidewall (2C) arranged between the first main surface and the second main surface. The carrier (2) has a structured region (21, 22, 23, 2C) for enlarging the total surface area of the sidewall, wherein the structured region has singulation traces. The invention also relates to an optoelectronic component (100) comprising such a semiconductor chip and a method for producing a plurality of such semiconductor chips are specified.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: October 30, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Mathias Kaempf, Simon Jerebic, Ingo Neudecker, Guenter Spath, Michael Huber
  • Patent number: 10090198
    Abstract: Disclosed is a method for separating a substrate (1) along a separation pattern (4), in which method a substrate (1) is provided and an auxiliary layer (3) is applied to the substrate, said layer covering the substrate at least along the separation pattern. The substrate comprising the auxiliary layer is irradiated, such that the material of the auxiliary layer penetrates the substrate along the separation pattern in the form of an impurity. The substrate is broken along the separation pattern. A semiconductor chip (15) is also disclosed.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: October 2, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Mathias Kaempf
  • Publication number: 20180233627
    Abstract: Disclosed is a radiation-emitting semi-conductor chip (1) comprising an epitaxial semi-conductor layer sequence (3) which emits electromagnetic radiation in operation. The epitaxial semi-conductor layer sequence (3) is applied on a a transparent substrate (4), wherein the substrate (4) has a first main surface (8) facing the semi-conductor layer sequence (3), a second main surface (9) facing away from the semi-conductor layer sequence (3) and a first lateral flank (10) arranged between the first main surface (8) and the second main surface (9), and the lateral flank (10) has a decoupling structure which is formed in a targeted manner from separating tracks. Also disclosed is a method for producing the semi-conductor chip, and a component comprising such a semi-conductor chip.
    Type: Application
    Filed: October 7, 2015
    Publication date: August 16, 2018
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Mathias KAEMPF, Simon JEREBIC, Ingo NEUDECKER, Guenter SPATH, Michael HUBER, Korbinian PERZLMAIER
  • Publication number: 20180117706
    Abstract: The invention relates to a method for dividing a composite into a plurality of semiconductor chips along a dividing pattern. A composite, which comprises a substrate, a semiconductor layer sequence, and a functional layer, is provided. Separating trenches are formed in the substrate along the dividing pattern. The functional layer is cut through along the dividing pattern by means of coherent radiation. Each divided semiconductor chip has part of the semiconductor layer sequence, part of the substrate, and part of the functional layer. The invention further relates to a semiconductor chip.
    Type: Application
    Filed: December 18, 2017
    Publication date: May 3, 2018
    Inventor: Mathias KAEMPF
  • Publication number: 20180047628
    Abstract: A method for singulating an assemblage into a plurality of semiconductor chips is specified, wherein an assemblage comprising a carrier, a semiconductor layer sequence and a metallic layer is provided. Separating trenches are formed in the carrier. The assemblage is subjected to mechanical loading, with the result that the metallic layer breaks along the separating trenches and the assemblage is singulated into semiconductor chips, wherein the singulated semiconductor chips each have part of the semiconductor layer sequence, of the carrier and of the metallic layer. A semiconductor chip is furthermore specified.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 15, 2018
    Inventor: Mathias KAEMPF
  • Patent number: 9873166
    Abstract: The invention relates to a method for dividing a composite into a plurality of semiconductor chips along a dividing pattern. A composite, which comprises a substrate, a semiconductor layer sequence, and a functional layer, is provided. Separating trenches are formed in the substrate along the dividing pattern. The functional layer is cut through along the dividing pattern by means of coherent radiation. Each divided semiconductor chip has part of the semiconductor layer sequence, part of the substrate, and part of the functional layer. The invention further relates to a semiconductor chip.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: January 23, 2018
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventor: Mathias Kaempf
  • Publication number: 20170345966
    Abstract: A method of producing a semiconductor body includes providing a semiconductor wafer having at least two chip regions and at least one separating region arranged between the chip regions, wherein the semiconductor wafer includes a layer sequence, an outermost layer of which has at least within the separating region a transmissive layer transmissive to electromagnetic radiation, carrying out at least one of removing the transmissive layer within the separating region before starting a separation process with help of a laser, applying an absorbent layer within the separating region, wherein the absorbent layer remains in the separation region during a subsequent separation process with help of a laser, and increasing the absorption coefficient of the transmissive layer within the separating region, and subsequently separating the chip regions along the separating regions by a laser.
    Type: Application
    Filed: August 14, 2017
    Publication date: November 30, 2017
    Inventors: Korbinian Perzlmaier, Heribert Zull, Franz Eberhard, Thomas Veit, Mathias Kämpf, Jens Dennemarck
  • Publication number: 20170271438
    Abstract: A method of producing a plurality of semiconductor chips includes a) providing a carrier substrate having a first major face and a second major face opposite the first major face; b) forming a diode structure between the first major face and the second major face, the diode structure electrically insulating the first major face from the second major face at least with regard to one polarity of an electrical voltage; c) arranging a semiconductor layer sequence on the first major face of the carrier substrate; and d) singulating the carrier substrate with the semiconductor layer sequence into a plurality of semiconductor chips.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Inventors: Ewald Karl Michael Günther, Andreas Plössl, Heribert Zull, Thomas Veit, Mathias Kämpf, Jens Dennemarck, Bernd Böhm, Korbinian Perzlmaier
  • Patent number: 9768344
    Abstract: A method of producing a semiconductor body includes providing a semiconductor wafer having at least two chip regions and at least one separating region arranged between the chip regions, wherein the semiconductor wafer includes a layer sequence, an outermost layer of which has at least within the separating region a transmissive layer transmissive to electromagnetic radiation, carrying out at least one of removing the transmissive layer within the separating region before starting a separation process with help of a laser, applying an absorbent layer within the separating region, wherein the absorbent layer remains in the separation region during a subsequent separation process with help of a laser, and increasing the absorption coefficient of the transmissive layer within the separating region, and subsequently separating the chip regions along the separating regions by a laser.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 19, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Korbinian Perzlmaier, Heribert Zull, Franz Eberhard, Thomas Veit, Mathias Kämpf, Jens Dennemarck
  • Patent number: 9728459
    Abstract: A method for singulating an assemblage (1) into a plurality of semiconductor chips (10) is specified, wherein an assemblage comprising a carrier (4), a semiconductor layer sequence (2) and a metallic layer (3) is provided. Separating trenches (45) are formed in the carrier. The assemblage is subjected to mechanical loading, with the result that the metallic layer breaks along the separating trenches and the assemblage is singulated into semiconductor chips, wherein the singulated semiconductor chips each have part of the semiconductor layer sequence, of the carrier and of the metallic layer. A semiconductor chip (10) is furthermore specified.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: August 8, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Mathias Kaempf
  • Patent number: 9704945
    Abstract: A carrier substrate includes a first major face and a second major face opposite the first major face. A diode structure is formed between the first major face and the second major face, which diode structure electrically insulates the first major face from the second major face at least with regard to one polarity of an electrical voltage.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: July 11, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ewald Karl Michael Günther, Andreas Plöβl, Heribert Zull, Thomas Veit, Mathias Kämpf, Jens Dennemarck, Bernd Böhm, Korbinian Perzlmaier
  • Patent number: 9663699
    Abstract: A suspension for protecting a semiconductor material, comprising a carrier medium, trimethylolpropane as a plasticizer, benzotriazole derivate as an absorber dye, and inorganic particles selected from the group consisting of aluminum nitride, silicon nitride and boron nitride, wherein the thermal conductivity of the suspension is about 1 W/mk to about 2 W/mk.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 30, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Gudrun Lindberg, Mathias Kämpf, Kathrin Lampert
  • Patent number: 9450376
    Abstract: A method of producing a semiconductor laser element includes A) providing at least one carrier assemblage having a multiplicity of carriers for the semiconductor laser elements, C) providing at least one laser bar having a multiplicity of semiconductor laser diodes which include a common growth substrate and a semiconductor layer sequence grown thereon, D) fitting the laser bar on a top side of the carrier assemblage, and E) singulating to form the semiconductor laser elements after D).
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: September 20, 2016
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Roland Enzmann, Stephan Haneder, Markus Arzberger, Christoph Walter, Tomasz Swietlik, Harald König, Robin Fehse, Mathias Kämpf, Markus Graul, Markus Horn
  • Publication number: 20160254415
    Abstract: The invention relates to an optoelectronic semiconductor chip (10) comprising a carrier (2) and a semiconductor body (1) having an active layer (13) provided for generating electromagnetic radiation. Said carrier (2) has a first main surface (2A) facing the semiconductor body, a second main surface (2B) facing away from the semiconductor body, and a sidewall (2C) arranged between the first main surface and the second main surface. The carrier (2) has a structured region (21, 22, 23, 2C) for enlarging the total surface area of the sidewall, wherein the structured region has singulation traces. The invention also relates to an optoelectronic component (100) comprising such a semiconductor chip and a method for producing a plurality of such semiconductor chips are specified.
    Type: Application
    Filed: October 14, 2014
    Publication date: September 1, 2016
    Inventors: Mathias KAEMPF, Simon JEREBIC, Ingo NEUDECKER, Guenter SPATH, Michael HUBER
  • Publication number: 20160218241
    Abstract: A method of producing a semiconductor body includes providing a semiconductor wafer having at least two chip regions and at least one separating region arranged between the chip regions, wherein the semiconductor wafer includes a layer sequence, an outermost layer of which has at least within the separating region a transmissive layer transmissive to electromagnetic radiation, carrying out at least one of removing the transmissive layer within the separating region before starting a separation process with help of a laser, applying an absorbent layer within the separating region, wherein the absorbent layer remains in the separation region during a subsequent separation process with help of a laser, and increasing the absorption coefficient of the transmissive layer within the separating region, and subsequently separating the chip regions along the separating regions by a laser.
    Type: Application
    Filed: April 5, 2016
    Publication date: July 28, 2016
    Inventors: Korbinian Perzlmaier, Heribert Zull, Franz Eberhard, Thomas Veit, Mathias Kämpf, Jens Dennemarck
  • Publication number: 20160204033
    Abstract: Disclosed is a method for separating a substrate (1) along a separation pattern (4), in which method a substrate (1) is provided and an auxiliary layer (3) is applied to the substrate, said layer covering the substrate at least along the separation pattern. The substrate comprising the auxiliary layer is irradiated, such that the material of the auxiliary layer penetrates the substrate along the separation pattern in the form of an impurity. The substrate is broken along the separation pattern. A semiconductor chip (15) is also disclosed.
    Type: Application
    Filed: August 6, 2014
    Publication date: July 14, 2016
    Inventor: Mathias KAEMPF