Patents by Inventor Armin Willmeroth

Armin Willmeroth 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: 8324686
    Abstract: A semiconductor device and method for manufacturing. One embodiment provides a semiconductor device including an active cell region and a gate pad region. A conductive gate layer is arranged in the active cell region and a conductive resistor layer is arranged in the gate pad region. The resistor layer includes a resistor region which includes a grid-like pattern of openings formed in the resistor layer. A gate pad metallization is arranged at least partially above the resistor layer and in electrical contact with the resistor layer. An electrical connection is formed between the gate layer and the gate pad metallization, wherein the electrical connection includes the resistor region.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: December 4, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Carolin Tolksdorf
  • Patent number: 8294206
    Abstract: An integrated circuit device includes a semiconductor body fitted with a first electrode and a second electrode on opposite surfaces. A control electrode on an insulating layer controls channel regions of body zones for a current flow between the two electrodes. A drift section adjoining the channel regions comprises drift zones and charge compensation zones. A part of the charge compensation zones includes conductively connected charge compensation zones electrically connected to the first electrode. Another part includes nearly-floating charge compensation zones, so that an increased control electrode surface has a monolithically integrated additional capacitance CZGD in a cell region of the semiconductor device.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: October 23, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Winfried Kaindl, Carolin Tolksdorf, Michael Rueb
  • Patent number: 8273622
    Abstract: A semiconductor device with a dynamic gate drain capacitance. One embodiment provides a semiconductor device. The device includes a semiconductor substrate, a field effect transistor structure including a source region, a first body region, a drain region, a gate electrode structure and a gate insulating layer. The gate insulating layer is arranged between the gate electrode structure and the body region. The gate electrode structure and the drain region partially form a capacitor structure including a gate-drain capacitance configured to dynamically change with varying reverse voltages applied between the source and drain regions. The gate-drain capacitance includes at least one local maximum at a given threshold or a plateau-like course at given reverse voltage.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: September 25, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Hans-Joachim Schulze, Carolin Tolksdorf, Winfried Kaindl, Armin Willmeroth
  • Patent number: 8263450
    Abstract: A semiconductor component with charge compensation structure has a semiconductor body having a drift path between two electrodes. The drift path has drift zones of a first conduction type, which provide a current path between the electrodes in the drift path, while charge compensation zones of a complementary conduction type constrict the current path of the drift path. For this purpose, the drift path has two alternately arranged, epitaxially grown diffusion zone types, the first drift zone type having monocrystalline semiconductor material on a monocrystalline substrate, and a second drift zone type having monocrystalline semiconductor material in a trench structure, with complementarily doped walls, the complementarily doped walls forming the charge compensation zones.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: September 11, 2012
    Assignee: Infineon Technologies AG
    Inventors: Stefan Sedlmaier, Hans-Joachim Schulze, Anton Mauder, Helmut Strack, Armin Willmeroth, Frank Pfirsch
  • Patent number: 8258573
    Abstract: A semiconductor component includes a body with a drift zone, a source zone, a body zone, and a drain zone. A gate forms a MOS structure with the drift zone, with the source zone and with the body zone. An edge termination between the lateral edge and the MOS structure includes a plurality of field rings which enclose the MOS structure. The lateral edge is at the same potential as the drift zone, and the edge termination reduces voltage between the lateral edge and the source zone. A horizontally extending edge plate is disposed at the front side between the lateral edge and the edge termination. The edge plate is at the same potential as the drift zone and forms a plate capacitor structure including a field plate lying above the edge plate.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 4, 2012
    Assignee: Infineon Technologies AG
    Inventors: Uwe Wahl, Armin Willmeroth
  • Publication number: 20120175635
    Abstract: A semiconductor device arrangement includes a first semiconductor device having a load path, and a number of second transistors, each having a load path between a first and a second load terminal and a control terminal. The second transistors have their load paths connected in series and connected in series to the load path of the first transistor. Each of the second transistors has its control terminal connected to the load terminal of one of the other second transistors. One of the second transistors has its control terminal connected to one of the load terminals of the first semiconductor device.
    Type: Application
    Filed: October 17, 2011
    Publication date: July 12, 2012
    Applicant: Infineon Technologies Austria AG
    Inventors: Rolf Weis, Franz Hirler, Matthias Stecher, Armin Willmeroth, Gerald Deboy, Martin Feldtkeller
  • Patent number: 8193584
    Abstract: A semiconductor component including a drift zone and a drift control zone. One embodiment provides a transistor component having a drift zone, a body zone, a source zone and a drain zone. The drift zone is arranged between the body zone and the drain zone. The body zone is arranged between the source zone and the drift zone.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: June 5, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Stefan Sedlmaier, Armin Willmeroth
  • Publication number: 20120132956
    Abstract: A semiconductor component having a semiconductor body is disclosed. In one embodiment, the semiconductor component includes a drift zone of a first conductivity type, a drift control zone composed of a semiconductor material which is arranged adjacent to the drift zone at least in places, a dielectric which is arranged between the drift zone and the drift control zone at least in places. A quotient of the net dopant charge of the drift control zone, in an area adjacent to the accumulation dielectric and the drift zone, divided by the area of the dielectric arranged between the drift control zone and the drift zone is less than the breakdown charge of the semiconductor material in the drift control zone.
    Type: Application
    Filed: February 7, 2012
    Publication date: May 31, 2012
    Applicant: Infineon Technologies AG
    Inventors: Frank Dieter Pfirsch, Armin Willmeroth, Anton Mauder, Stefan Sedlmaier
  • Publication number: 20120088353
    Abstract: A semiconductor device with a charge carrier compensation structure in a semiconductor body and to a method for its production. The semiconductor body includes drift zones of a first conduction type and charge compensation zones of a second conduction type complementing the first conduction type. The drift zones include a semiconductor material applied in epitaxial growth zones, wherein the epitaxial growth zones include an epitaxially grown semiconductor material which is non-doped to lightly doped. Towards the substrate, the epitaxial growth zones are provided with a first conduction type incorporated by ion implantation over the entire surface and with selectively introduced doping material zones of a second, complementary conduction type. Towards the front side, the epitaxial growth zones are provided with a second, complementary conduction type incorporated by ion implantation over the entire surface and with selectively introduced doping material zones of the first conduction type.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Michael Rueb
  • Publication number: 20120032255
    Abstract: An integrated circuit and component is disclosed. In one embodiment, the component is a compensation component, configuring the compensation regions in the drift zone in V-shaped fashion in order to achieve a convergence of the space charge zones from the upper to the lower end of the compensation regions is disclosed.
    Type: Application
    Filed: October 20, 2011
    Publication date: February 9, 2012
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Armin Willmeroth, Holger Kapels
  • Patent number: 8110868
    Abstract: A semiconductor component having a semiconductor body is disclosed. In one embodiment, the semiconductor component includes a drift zone of a first conductivity type, a drift control zone composed of a semiconductor material which is arranged adjacent to the drift zone at least in places, a dielectric which is arranged between the drift zone and the drift control zone at least in places. A quotient of the net dopant charge of the drift control zone, in an area adjacent to the accumulation dielectric and the drift zone, divided by the area of the dielectric arranged between the drift control zone and the drift zone is less than the breakdown charge of the semiconductor material in the drift control zone.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: February 7, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Frank Dieter Pfirsch, Armin Willmeroth, Anton Mauder, Stefan Sedlmaier
  • Publication number: 20120018856
    Abstract: Disclosed is a method of forming a semiconductor device with drift regions of a first doping type and compensation regions of a second doping type, and a semiconductor device with drift regions of a first doping type and compensation regions of a second doping type.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Joachim Weyers, Armin Willmeroth, Anton Mauder, Franz Hirler
  • Patent number: 8101997
    Abstract: A semiconductor device with a charge carrier compensation structure in a semiconductor body and to a method for its production. The semiconductor body includes drift zones of a first conduction type and charge compensation zones of a second conduction type complementing the first conduction type. The drift zones include a semiconductor material applied in epitaxial growth zones, wherein the epitaxial growth zones include an epitaxially grown semiconductor material which is non-doped to lightly doped. Towards the substrate, the epitaxial growth zones are provided with a first conduction type incorporated by ion implantation over the entire surface and with selectively introduced doping material zones of a second, complementary conduction type. Towards the front side, the epitaxial growth zones are provided with a second, complementary conduction type incorporated by ion implantation over the entire surface and with selectively introduced doping material zones of the first conduction type.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: January 24, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Michael Rueb
  • Publication number: 20110309810
    Abstract: Disclosed is an electronic circuit with a first load terminal, a second load terminal, a supply terminal configured for having a charge storage arrangement connected thereto, and a load transistor, a current sense circuit with a sense transistor, and a start-up circuit with a start-up transistor.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Armin WILLMEROTH, Marc FAHLENKAMP
  • Patent number: 8063419
    Abstract: An integrated circuit and component is disclosed. In one embodiment, the component is a compensation component, configuring the compensation regions in the drift zone in V-shaped fashion in order to achieve a convergence of the space charge zones from the upper to the lower end of the compensation regions is disclosed.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: November 22, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Holger Kapels
  • Publication number: 20110241104
    Abstract: An integrated circuit device includes a semiconductor body fitted with a first electrode and a second electrode on opposite surfaces. A control electrode on an insulating layer controls channel regions of body zones for a current flow between the two electrodes. A drift section adjoining the channel regions comprises drift zones and charge compensation zones. A part of the charge compensation zones includes conductively connected charge compensation zones electrically connected to the first electrode. Another part includes nearly-floating charge compensation zones, so that an increased control electrode surface has a monolithically integrated additional capacitance CZGD in a cell region of the semiconductor device.
    Type: Application
    Filed: June 15, 2011
    Publication date: October 6, 2011
    Applicant: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Winfried Kaindl, Carolin Tolksdorf, Michael Rueb
  • Publication number: 20110244646
    Abstract: A semiconductor device with a dynamic gate drain capacitance. One embodiment provides a semiconductor device. The device includes a semiconductor substrate, a field effect transistor structure including a source region, a first body region, a drain region, a gate electrode structure and a gate insulating layer. The gate insulating layer is arranged between the gate electrode structure and the body region. The gate electrode structure and the drain region partially form a capacitor structure including a gate-drain capacitance configured to dynamically change with varying reverse voltages applied between the source and drain regions. The gate-drain capacitance includes at least one local maximum at a given threshold or a plateau-like course at given reverse voltage.
    Type: Application
    Filed: June 15, 2011
    Publication date: October 6, 2011
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Anton Mauder, Hans-Joachim Schulze, Carolin Tolksdorf, Winfried Kaindl, Armin Willmeroth
  • Publication number: 20110189839
    Abstract: A semiconductor device with a semiconductor body and method for its production is disclosed. The semiconductor body includes drift zones of epitaxially grown semiconductor material of a first conduction type. The semiconductor body further includes charge compensation zones of a second conduction type complementing the first conduction type, which are arranged laterally adjacent to the drift zones. The charge compensation zones are provided with a laterally limited charge compensation zone doping, which is introduced into the epitaxially grown semiconductor material. The epitaxially grown semiconductor material includes 20 to 80 atomic % of the doping material of the drift zones and a doping material balance of 80 to 20 atomic % introduced by ion implantation and diffusion.
    Type: Application
    Filed: April 12, 2011
    Publication date: August 4, 2011
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Armin Willmeroth, Franz Hirler
  • Patent number: 7982253
    Abstract: A semiconductor device with a dynamic gate drain capacitance. One embodiment provides a semiconductor device. The device includes a semiconductor substrate, a field effect transistor structure including a source region, a first body region, a drain region, a gate electrode structure and a gate insulating layer. The gate insulating layer is arranged between the gate electrode structure and the body region. The gate electrode structure and the drain region partially form a capacitor structure including a gate-drain capacitance configured to dynamically change with varying reverse voltages applied between the source and drain regions. The gate-drain capacitance includes at least one local maximum at a given threshold or a plateau-like course at given reverse voltage.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: July 19, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Hans-Joachim Schulze, Carolin Tolksdorf, Winfried Kaindl, Armin Willmeroth
  • Patent number: 7977737
    Abstract: A semiconductor device with inherent capacitances and method for its production. The semiconductor device has an inherent feedback capacitance between a control electrode and a first electrode. In addition, the semiconductor device has an inherent drain-source capacitance between the first electrode and a second electrode. At least one monolithically integrated additional capacitance is connected in parallel to the inherent feedback capacitance or in parallel to the inherent drain-source capacitance. The additional capacitance comprises a first capacitor surface and a second capacitor surface opposite the first capacitor surface. The capacitor surfaces are structured conductive layers of the semiconductor device on a front side of the semiconductor body, between which a dielectric layer is located and which form at least one additional capacitor.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 12, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Winfried Kaindl, Carolin Tolksdorf, Anton Mauder, Holger Kapels, Gerald Deboy, Franz Hirler