Patents by Inventor Thomas Raker

Thomas Raker 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: 10211057
    Abstract: A transistor component includes in a semiconductor body a source zone and a drift zone of a first conduction type, and a body zone of a second conduction type complementary to the first conduction type, the body zone arranged between the drift zone and the source zone. The transistor component further includes a source electrode in contact with the source zone and the body zone, a gate electrode adjacent the body zone and dielectrically insulated from the body zone by a gate dielectric layer, and a diode structure connected between the drift zone and the source electrode. The diode structure includes a first emitter zone adjoining the drift zone in the semiconductor body, and a second emitter zone of the first conduction type adjoining the first emitter zone. The second emitter zone is connected to the source electrode and has an emitter efficiency ? of less than 0.7.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: February 19, 2019
    Assignee: Infineon Technologies Austria AG
    Inventors: Franz Hirler, Anton Mauder, Thomas Raker, Hans-Joachim Schulze, Wolfgang Werner
  • Patent number: 9412854
    Abstract: An IGBT module is provided. The IGBT module has at least a first individual IGBT with a first softness during switching-off the IGBT module, and at least a second individual IGBT connected in parallel to the at least one first IGBT. The at least one second individual IGBT has a second softness during switching-off the IGBT module which is different than the first softness. Further a circuit and an electronic power device having two individual IGBTs, which are connected in parallel, are provided.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: August 9, 2016
    Assignee: Infineon Technologies Austria AG
    Inventors: Hans-Peter Felsl, Hans-Joachim Schulze, Franz-Josef Niedernostheide, Thomas Raker
  • Publication number: 20160111508
    Abstract: A semiconductor device having a trench gate and method for manufacturing is disclosed. One embodiment includes a first semiconductor area and a second semiconductor area, a semiconductor body area between the first semiconductor area and the second semiconductor area, and a gate arranged in a trench and separated from the semiconductor body by an insulation layer, wherein the trench has a top trench portion which extends from the semiconductor surface at least to a depth which is greater than a depth of the first semiconductor area, wherein the trench further has a bottom trench portion extending subsequent to the top trench portion at least up to the second semiconductor area, and wherein the top trench portion has a first lateral dimension and the bottom trench portion has a second lateral dimension which is greater than the first lateral dimension.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Applicant: Infineon Technologies AG
    Inventors: Christian Foerster, Georg Ehrentraut, Frank Pfirsch, Thomas Raker
  • Patent number: 9105682
    Abstract: Disclosed is a semiconductor component that includes a semiconductor body, a first emitter region of a first conductivity type in the semiconductor body, a second emitter region of a second conductivity type spaced apart from the first emitter region in a vertical direction of the semiconductor body, a base region of one conductivity type arranged between the first emitter region and the second emitter region, and at least two higher doped regions of the same conductivity type as the base region and arranged in the base region. The at least two higher doped regions are spaced apart from one another in a lateral direction of the semiconductor body and separated from one another only by sections of the base region.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 11, 2015
    Assignee: Infineon Technologies Austria AG
    Inventors: Hans-Peter Felsl, Thomas Raker, Hans-Joachim Schulze, Franz-Josef Niedernostheide
  • Patent number: 8872264
    Abstract: A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: October 28, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Frank Pfirsch, Maria Cotorogea, Franz Hirler, Franz-Josef Niedernostheide, Thomas Raker, Hans-Joachim Schulze, Hans Peter Felsl
  • Publication number: 20130270632
    Abstract: A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Frank Pfirsch, Maria Cotorogea, Franz Hirler, Franz-Josef Niedernostheide, Thomas Raker, Hans-Joachim Schulze, Hans Peter Felsl
  • Patent number: 8482062
    Abstract: A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: July 9, 2013
    Assignee: Infineon Technologies Austria AG
    Inventors: Frank Pfirsch, Maria Cotorogea, Franz Hirler, Franz-Josef Niedernostheide, Thomas Raker, Hans-Joachim Schulze, Hans Peter Felsl
  • Publication number: 20130001640
    Abstract: A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Frank Pfirsch, Maria Cotorogea, Franz Hirler, Franz-Josef Niedernostheide, Thomas Raker, Hans-Joachim Schulze, Hans Peter Felsl
  • Patent number: 8264033
    Abstract: A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: September 11, 2012
    Assignee: Infineon Technologies Austria AG
    Inventors: Frank Pfirsch, Maria Cotorogea, Franz Hirler, Franz-Josef Niedernostheide, Thomas Raker, Hans-Joachim Schulze, Hans Peter Felsl
  • Publication number: 20120217539
    Abstract: Disclosed is a semiconductor component that includes a semiconductor body, a first emitter region of a first conductivity type in the semiconductor body, a second emitter region of a second conductivity type spaced apart from the first emitter region in a vertical direction of the semiconductor body, a base region of one conductivity type arranged between the first emitter region and the second emitter region, and at least two higher doped regions of the same conductivity type as the base region and arranged in the base region. The at least two higher doped regions are spaced apart from one another in a lateral direction of the semiconductor body and separated from one another only by sections of the base region.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Hans Peter Felsl, Thomas Raker, Hans-Joachim Schulze, Franz-Josef Niedernostheide
  • Publication number: 20120098097
    Abstract: An IGBT module is provided. The IGBT module has at least a first individual IGBT with a first softness during switching-off the IGBT module, and at least a second individual IGBT connected in parallel to the at least one first IGBT. The at least one second individual IGBT has a second softness during switching-off the IGBT module which is different than the first softness. Further a circuit and an electronic power device having two individual IGBTs, which are connected in parallel, are provided.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 26, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Hans-Peter Felsl, Hans-Joachim Schulze, Franz-Josef Niedernostheide, Thomas Raker
  • Publication number: 20120037955
    Abstract: A transistor component includes in a semiconductor body a source zone and a drift zone of a first conduction type, and a body zone of a second conduction type complementary to the first conduction type, the body zone arranged between the drift zone and the source zone. The transistor component further includes a source electrode in contact with the source zone and the body zone, a gate electrode adjacent the body zone and dielectrically insulated from the body zone by a gate dielectric layer, and a diode structure connected between the drift zone and the source electrode. The diode structure includes a first emitter zone adjoining the drift zone in the semiconductor body, and a second emitter zone of the first conduction type adjoining the first emitter zone. The second emitter zone is connected to the source electrode and has an emitter efficiency ? of less than 0.7.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 16, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Franz Hirler, Anton Mauder, Thomas Raker, Hans-Joachim Schulze, Wolfgang Werner
  • Publication number: 20110309423
    Abstract: A semiconductor device having a trench gate and method for manufacturing is disclosed. One embodiment includes a first semiconductor area and a second semiconductor area, a semiconductor body area between the first semiconductor area and the second semiconductor area, and a gate arranged in a trench and separated from the semiconductor body by an insulation layer, wherein the trench has a top trench portion which extends from the semiconductor surface at least to a depth which is greater than a depth of the first semiconductor area, wherein the trench further has a bottom trench portion extending subsequent to the top trench portion at least up to the second semiconductor area, and wherein the top trench portion has a first lateral dimension and the bottom trench portion has a second lateral dimension which is greater than the first lateral dimension.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 22, 2011
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Christian Foerster, Georg Ehrentraut, Frank Pfirsch, Thomas Raker
  • Patent number: 7952166
    Abstract: A semiconductor device with switch electrode and gate electrode and a method for switching a semiconductor device. One embodiment provides a semiconductor substrate with an emitter region, a drift region, a body region and a source region. The drift region is formed between the emitter and the body region while the body region is formed between the drift and the source region. A first trench structure extends from the source region at least partially into the drift region. The first trench structure includes a gate electrode arranged next to the body region and a switch electrode arranged in portions next to the drift region, wherein the switch and gate electrodes are electrically insulated from each other in the trench structure. A first gate driver is electrically connected to the gate electrode while a second gate driver is electrically connected to the switch gate.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: May 31, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Franz Hirler, Thomas Raker
  • Publication number: 20110018029
    Abstract: A semiconductor device includes a first trench and a second trench extending into a semiconductor body from a surface. A body region of a first conductivity type adjoins a first sidewall of the first trench and a first sidewall of the second trench, the body region including a channel portion adjoining to a source structure and being configured to be controlled in its conductivity by a gate structure. The channel portion is formed at the first sidewall of the second trench and is not formed at the first sidewall of the first trench. An electrically floating semiconductor zone of the first conductivity type adjoins the first trench and has a bottom side located deeper within the semiconductor body than the bottom side of the body region.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 27, 2011
    Applicant: Infineon Technologies Austria AG
    Inventors: Frank Pfirsch, Maria Cotorogea, Franz Hirler, Franz-Josef Niedernostheide, Thomas Raker, Hans-Joachim Schulze, Hans Peter Felsl
  • Patent number: 7768093
    Abstract: A semiconductor device has a heavily doped substrate and an upper layer with doped silicon of a first conductivity type disposed on the substrate, the upper layer having an upper surface and including an active region that comprises a well region of a second, opposite conductivity type. An edge termination zone has a junction termination extension (JTE) region of the second conductivity type, the region having portions extending away from the well region and a number of field limiting rings of the second conductivity type disposed at the upper surface in the junction termination extension region.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: August 3, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Hans-Joachim Schulze, Frank Hille, Thomas Raker
  • Publication number: 20090289690
    Abstract: A semiconductor device with switch electrode and gate electrode and a method for switching a semiconductor device. One embodiment provides a semiconductor substrate with an emitter region, a drift region, a body region and a source region. The drift region is formed between the emitter and the body region while the body region is formed between the drift and the source region. A first trench structure extends from the source region at least partially into the drift region. The first trench structure includes a gate electrode arranged next to the body region and a switch electrode arranged in portions next to the drift region, wherein the switch and gate electrodes are electrically insulated from each other in the trench structure. A first gate driver is electrically connected to the gate electrode while a second gate driver is electrically connected to the switch gate.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 26, 2009
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Franz Hirler, Thomas Raker
  • Publication number: 20090206440
    Abstract: A semiconductor device has a heavily doped substrate and an upper layer with doped silicon of a first conductivity type disposed on the substrate, the upper layer having an upper surface and including an active region that comprises a well region of a second, opposite conductivity type. An edge termination zone has a junction termination extension (JTE) region of the second conductivity type, the region having portions extending away from the well region and a number of field limiting rings of the second conductivity type disposed at the upper surface in the junction termination extension region.
    Type: Application
    Filed: March 13, 2009
    Publication date: August 20, 2009
    Inventors: Hans-Joachim Schulze, Frank Hille, Thomas Raker
  • Patent number: 7541660
    Abstract: A The semiconductor device has a heavily doped substrate and an upper layer with doped silicon of a first conductivity type disposed on the substrate, the upper layer having an upper surface and including an active region that comprises a well region of a second, opposite conductivity type. An edge termination zone has a junction termination extension (JTE) region of the second conductivity type, the region having portions extending away from the well region and a number of field limiting rings of the second conductivity type disposed at the upper surface in the junction termination extension region.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: June 2, 2009
    Assignee: Infineon Technologies Austria AG
    Inventors: Hans-Joachim Schulze, Frank Hille, Thomas Raker
  • Publication number: 20080179666
    Abstract: A semiconductor device having a trench gate and method for manufacturing is disclosed. One embodiment includes a first semiconductor area and a second semiconductor area, a semiconductor body area between the first semiconductor area and the second semiconductor area, and a gate arranged in a trench and separated from the semiconductor body by an insulation layer, wherein the trench has a top trench portion which extends from the semiconductor surface at least to a depth which is greater than a depth of the first semiconductor area, wherein the trench further has a bottom trench portion extending subsequent to the top trench portion at least up to the second semiconductor area, and wherein the top trench portion has a first lateral dimension and the bottom trench portion has a second lateral dimension which is greater than the first lateral dimension.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Christian Foerster, Georg Ehrentraut, Frank Pfirsch, Thomas Raker