Patents by Inventor Carsten Ahrens

Carsten Ahrens 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).

  • Patent number: 8883612
    Abstract: A method of manufacturing a semiconductor device includes forming a porous area of a semiconductor body. The semiconductor body includes a porous structure in the porous area. A semiconductor layer is formed on the porous area. Semiconductor regions are formed in the semiconductor layer. Then, the semiconductor layer is separated from the semiconductor body along the porous area, including introducing hydrogen into the porous area by a thermal treatment.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: November 11, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Hans-Joachim Schulze, Francisco Javier Santos Rodriguez, Anton Mauder, Johannes Baumgartl, Carsten Ahrens
  • Publication number: 20140327103
    Abstract: A semiconductor device with a buried electrode is manufactured by forming a cavity within a semiconductor substrate, forming an active device region in an epitaxial layer disposed on the semiconductor substrate and forming the buried electrode below the active device region in the cavity. The buried electrode is formed from an electrically conductive material different than the material of the semiconductor substrate.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 6, 2014
    Inventors: Carsten Ahrens, Johannes Baumgartl, Francisco Javier Santos Rodriguez, Hans-Joachim Schulze
  • Publication number: 20140264651
    Abstract: In accordance with an embodiment of the present invention, a method of forming a semiconductor device includes forming a sacrificial layer over a first surface of a workpiece having the first surface and an opposite second surface. A membrane is formed over the sacrificial layer. A through hole is etched through the workpiece from the second surface to expose a surface of the sacrificial layer. At least a portion of the sacrificial layer is removed from the second surface to form a cavity under the membrane. The cavity is aligned with the membrane.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Alfons Dehe, Carsten Ahrens, Stefan Barzen, Wolfgang Friza
  • Patent number: 8816503
    Abstract: A semiconductor device with a buried electrode is manufactured by forming a cavity within a semiconductor substrate, forming an active device region in an epitaxial layer disposed on the semiconductor substrate and forming the buried electrode below the active device region in the cavity. The buried electrode is formed from an electrically conductive material different than the material of the semiconductor substrate.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: August 26, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Carsten Ahrens, Johannes Baumgartl, Francisco Javier Santos Rodriguez, Hans-Joachim Schulze
  • Publication number: 20140235039
    Abstract: A method for producing a protective structure may include: providing a semiconductor base substrate with a doping of a first conductivity type; producing a first epitaxial layer on the substrate; implanting a dopant of a second conductivity type in a delimited implantation region of the first epitaxial layer; applying a second epitaxial layer with a doping of the second conductivity type on the first epitaxial layer; forming an insulation zone in the second epitaxial layer, such that the second epitaxial layer is subdivided into first and second regions; producing a first dopant zone with a doping of the first conductivity type in the first region above the implantation region; producing a second dopant zone with a doping of the second conductivity type in the second region; outdiffusing the dopant from the implantation region to form a buried layer at the junction between the first epitaxial layer and the first region.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Applicant: Infineon Technologies AG
    Inventors: Andre Schmenn, Damian Sojka, Carsten Ahrens
  • Publication number: 20140203399
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Application
    Filed: March 19, 2014
    Publication date: July 24, 2014
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Patent number: 8766415
    Abstract: A protective structure may include: a semiconductor substrate having a doping of a first conductivity type; a semiconductor layer having a doping of a second conductivity type arranged at a surface of the semiconductor substrate; a buried layer having a doping of the second conductivity type arranged in a first region of the semiconductor layer and at the junction between the semiconductor layer and the semiconductor substrate; a first dopant zone having a doping of the first conductivity type arranged in the first region of the semiconductor layer above the buried layer; a second dopant zone having a doping of the second conductivity type arranged in a second region of the semiconductor layer; an electrical insulation arranged between the first region and the second region of the semiconductor layer; and a common connection device for the first dopant zone and the second dopant zone.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 1, 2014
    Assignee: Infineon Technologies AG
    Inventors: Andre Schmenn, Damian Sojka, Carsten Ahrens
  • Patent number: 8753982
    Abstract: A method for producing a connection region on a side wall of a semiconductor body is disclosed. A first trench is produced on a first surface of a semiconductor body and extends into the semiconductor body. An insulation layer is formed on the side walls and on the bottom of the first trench, and the first trench is only partially filled. The unfilled part of the first trench is filled with an electrically conductive material. A separating trench is produced along the first trench in such a way that a side wall of the separating trench directly adjoins the first trench. The part of the insulation layer which adjoins the separating trench is at least partially removed, with the result that at least some of the electrically conductive material in the first trench is exposed.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: June 17, 2014
    Assignee: Infineon Technologies AG
    Inventors: Carsten Ahrens, Berthold Schuderer, Stefan Willkofer
  • Patent number: 8709831
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: April 29, 2014
    Assignee: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Publication number: 20140103460
    Abstract: A method for manufacturing a MEMS device is disclosed. Moreover a MEMS device and a module including a MEMS device are disclosed. An embodiment includes a method for manufacturing MEMS devices includes forming a MEMS stack on a first main surface of a substrate, forming a polymer layer on a second main surface of the substrate and forming a first opening in the polymer layer and the substrate such that the first opening abuts the MEMS stack.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Alfons Dehe, Stephan Pindl, Bernhard Knott, Carsten Ahrens
  • Publication number: 20140097514
    Abstract: A semiconductor package includes a semiconductor chip, an inductor applied to the semiconductor chip. The inductor includes at least one winding. A space within the at least one winding is filled with a magnetic material.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Klaus Elian, Jens Pohl, Horst Theuss, Renate Hofmann, Alexander Glas, Carsten Ahrens
  • Publication number: 20140037116
    Abstract: Embodiments show a method for fabricating a cavity structure, a semiconductor structure, a cavity structure for a semiconductor device and a semiconductor microphone fabricated by the same. In some embodiments the method for fabricating a cavity structure comprises providing a first layer, depositing a carbon layer on the first layer, covering at least partially the carbon layer with a second layer to define the cavity structure, removing by means of dry etching the carbon layer between the first and second layer so that the cavity structure is formed.
    Type: Application
    Filed: October 2, 2013
    Publication date: February 6, 2014
    Applicant: Infineon Technologies AG
    Inventors: Wolfgang Friza, Thomas Grille, Klaus Muemmler, Guenter Zieger, Carsten Ahrens
  • Publication number: 20140028192
    Abstract: In one embodiment of the present invention, an electronic device includes a first emitter/collector region and a second emitter/collector region disposed in a substrate. The first emitter/collector region has a first edge/tip, and the second emitter/collector region has a second edge/tip. A gap separates the first edge/tip from the second edge/tip. The first emitter/collector region, the second emitter/collector region, and the gap form a field emission device.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 30, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Alfons Dehe, Damian Sojka, Andre Schmenn, Carsten Ahrens
  • Publication number: 20130341771
    Abstract: A protective structure may include: a semiconductor substrate having a doping of a first conductivity type; a semiconductor layer having a doping of a second conductivity type arranged at a surface of the semiconductor substrate; a buried layer having a doping of the second conductivity type arranged in a first region of the semiconductor layer and at the junction between the semiconductor layer and the semiconductor substrate; a first dopant zone having a doping of the first conductivity type arranged in the first region of the semiconductor layer above the buried layer; a second dopant zone having a doping of the second conductivity type arranged in a second region of the semiconductor layer; an electrical insulation arranged between the first region and the second region of the semiconductor layer; and a common connection device for the first dopant zone and the second dopant zone.
    Type: Application
    Filed: August 28, 2013
    Publication date: December 26, 2013
    Applicant: Infineon Technologies AG
    Inventors: Andre Schmenn, Damian Sojka, Carsten Ahrens
  • Patent number: 8575037
    Abstract: Embodiments show a method for fabricating a cavity structure, a semiconductor structure, a cavity structure for a semiconductor device and a semiconductor microphone fabricated by the same. In some embodiments the method for fabricating a cavity structure comprises providing a first layer, depositing a carbon layer on the first layer, covering at least partially the carbon layer with a second layer to define the cavity structure, removing by means of dry etching the carbon layer between the first and second layer so that the cavity structure is formed.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: November 5, 2013
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Friza, Thomas Grille, Klaus Muemmler, Guenter Zieger, Carsten Ahrens
  • Publication number: 20130260483
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 3, 2013
    Applicant: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Publication number: 20130239404
    Abstract: In one embodiment, an inductor has a substrate, a conductor disposed above the substrate and a seamless ferromagnetic material surrounding at least a first portion of the conductor.
    Type: Application
    Filed: May 6, 2013
    Publication date: September 19, 2013
    Applicant: Infineon Technologies AG
    Inventors: Carsten Ahrens, Gunther Mackh, Klemens Pruegl
  • Patent number: 8531011
    Abstract: A protective structure is produced by providing a semiconductor substrate having doping of a first conductivity type. A semiconductor layer having doping of a second conductivity type is applied at a surface of the semiconductor substrate. A buried layer with doping of a second conductivity type is formed in a first region of the semiconductor layer, producing a layer at the junction between the semiconductor layer and semiconductor substrate. A first dopant zone having doping of a first conductivity type is formed in the first region of the semiconductor layer above the buried layer. A second dopant zone having doping of a second conductivity type is formed in a second region of the semiconductor layer. An electrical insulation is formed between the first and second regions of the semiconductor layer. A common connection device is formed for the first and second dopant zones.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: September 10, 2013
    Assignee: Infineon Technologies AG
    Inventors: Andre Schmenn, Damian Sojka, Carsten Ahrens
  • Patent number: 8470612
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 25, 2013
    Assignee: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Patent number: 8436707
    Abstract: In one embodiment, an inductor has a substrate, a conductor disposed above the substrate and a seamless ferromagnetic material surrounding at least a first portion of the conductor.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: May 7, 2013
    Assignee: Infineon Technologies AG
    Inventors: Carsten Ahrens, Gunther Mackh, Klemens Pruegl