Patents by Inventor Josef Georg Bauer

Josef Georg Bauer 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: 11387359
    Abstract: A power semiconductor device having a power semiconductor transistor configuration includes: a semiconductor body having a front side coupled to a first load terminal structure, a backside coupled to a second load terminal structure, and a lateral chip edge; an active region for conducting a load current in a conducting state; and an edge termination region separating the active region and lateral chip edge. At the front-side, the edge termination region includes a protection region devoid of any metallic structure, unless the metallic structure is electrically shielded from below by a polysilicon layer that extends further towards the lateral chip edge than the metallic structure by a lateral distance of at least 20 ?m. In a blocking state, the protection region accommodates a voltage change of at least 90% of a blocking voltage inside the semiconductor body in a lateral direction from the active region towards the lateral chip edge.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: July 12, 2022
    Assignee: Infineon Technologies AG
    Inventors: Oliver Humbel, Josef-Georg Bauer, Jens Brandenburg, Diana Car, Philipp Sebastian Koch, Angelika Koprowski, Sebastian Kremp, Thomas Kurzmann, Erwin Lercher, Holger Ruething
  • Publication number: 20200357883
    Abstract: A power semiconductor device includes an active region having a total volume with a central volume forming at least 20% of the total volume, a peripheral volume forming at least 20% of the total volume and surrounding the central volume, and an outermost peripheral volume forming at least 5% of the total volume and surrounding the peripheral volume. The peripheral volume has a constant lateral distance from an edge termination region. A first doped semiconductor region is electrically connected with a first load terminal at a semiconductor body frontside. A second doped semiconductor region is electrically connected with a second load terminal at a semiconductor body backside. The first and/or second doped semiconductor region has: a central portion extending into the central volume and having a central average dopant dose; and a peripheral portion extending into the peripheral volume and having a peripheral average dopant dose.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 12, 2020
    Inventors: Manfred Pfaffenlehner, Josef-Georg Bauer, Frank Dieter Pfirsch, Thilo Scheiper, Konrad Schraml
  • Publication number: 20200194585
    Abstract: A power semiconductor device having a power semiconductor transistor configuration includes: a semiconductor body having a front side coupled to a first load terminal structure, a backside coupled to a second load terminal structure, and a lateral chip edge; an active region for conducting a load current in a conducting state; and an edge termination region separating the active region and lateral chip edge. At the front-side, the edge termination region includes a protection region devoid of any metallic structure, unless the metallic structure is electrically shielded from below by a polysilicon layer that extends further towards the lateral chip edge than the metallic structure by a lateral distance of at least 20 ?m. In a blocking state, the protection region accommodates a voltage change of at least 90% of a blocking voltage inside the semiconductor body in a lateral direction from the active region towards the lateral chip edge.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Inventors: Oliver Humbel, Josef-Georg Bauer, Jens Brandenburg, Diana Car, Philipp Sebastian Koch, Angelika Koprowski, Sebastian Kremp, Thomas Kurzmann, Erwin Lercher, Holger Ruething
  • Patent number: 10388722
    Abstract: A power semiconductor device is disclosed. In one example, the device comprises: a semiconductor body comprising a drift region, the drift region having dopants of a first conductivity type; an active region having at least one power cell; least partially into the semiconductor body; the at least one power cell being configured to conduct a load current between said terminals and to block a blocking voltage applied between said terminals; an edge that laterally terminates the semiconductor body; and a non-active termination structure arranged in between the edge and the active region. The termination structure comprises: at least one doped semiconductor region implemented in the semiconductor body; a conductor structure, and an ohmic path that electrically couples the conductor structure with an electrical potential of the first load terminal.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 20, 2019
    Assignee: Infineon Technologies AG
    Inventors: Elmar Falck, Josef-Georg Bauer, Jens Brandenburg, Hans-Joachim Schulze
  • Publication number: 20180114841
    Abstract: A power semiconductor device is disclosed. In one example, the device comprises: a semiconductor body comprising a drift region, the drift region having dopants of a first conductivity type; an active region having at least one power cell; least partially into the semiconductor body; the at least one power cell being configured to conduct a load current between said terminals and to block a blocking voltage applied between said terminals; an edge that laterally terminates the semiconductor body; and a non-active termination structure arranged in between the edge and the active region. The termination structure comprises: at least one doped semiconductor region implemented in the semiconductor body; a conductor structure, and an ohmic path that electrically couples the conductor structure with an electrical potential of the first load terminal.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 26, 2018
    Applicant: Infineon Technologies AG
    Inventors: Elmar Falck, Josef-Georg Bauer, Jens Brandenburg, Hans-Joachim Schulze
  • Patent number: 9859395
    Abstract: A semiconductor device includes a semiconductor body with a first surface, a contact electrode arranged on the first surface, and a passivation layer on the first surface adjacent the contact electrode. The passivation layer includes a layer stack with an amorphous semi-insulating layer on the first surface, a first nitride layer on the amorphous semi-insulating layer, and a second nitride layer on the first nitride layer.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 2, 2018
    Assignee: Infineon Technologies AG
    Inventors: Gerhard Schmidt, Josef-Georg Bauer, Carsten Schaeffer, Oliver Humbel, Angelika Koprowski, Sirinpa Monayakul
  • Patent number: 9484221
    Abstract: A power semiconductor device has a semiconductor body having a first surface and a second surface that runs substantially parallel to the first surface. A first metallization is arranged on the first surface. A second metallization is arranged on the second surface. The semiconductor body includes an n-doped first semiconductor region spaced apart from the first metallization and having a first maximum doping concentration, an n-doped second semiconductor region having a second maximum doping concentration higher than the first maximum doping concentration and adjoining the first semiconductor region, and a third semiconductor region in ohmic contact with the second metallization, arranged between the second metallization and the second semiconductor region, and adjoining the second semiconductor region. The second semiconductor region is made of a semiconductor material which includes electrically active chalcogen impurities as donors.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: November 1, 2016
    Assignee: Infineon Technologies AG
    Inventors: Gerhard Schmidt, Josef Georg Bauer
  • Patent number: 9349799
    Abstract: Disclosed are a method and a semiconductor device. The method includes implanting recombination center atoms via a first surface into a semiconductor body, and causing the implanted recombination center atoms to diffuse in the semiconductor body in a first diffusion process.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: May 24, 2016
    Assignee: Infineon Technologies AG
    Inventors: Gerhard Schmidt, Josef Georg Bauer, Mario Barusic, Oliver Humbel, Hans Millonig, Werner Schustereder
  • Publication number: 20160049474
    Abstract: Disclosed are a method and a semiconductor device. The method includes implanting recombination center atoms via a first surface into a semiconductor body, and causing the implanted recombination center atoms to diffuse in the semiconductor body in a first diffusion process.
    Type: Application
    Filed: August 13, 2015
    Publication date: February 18, 2016
    Inventors: Gerhard Schmidt, Josef Georg Bauer, Mario Barusic, Oliver Humbel, Hans Millonig, Werner Schustereder
  • Patent number: 9263529
    Abstract: Method of producing a vertically inhomogeneous platinum or gold distribution in a semiconductor substrate with a first and a second surface opposite the first surface, with diffusing platinum or gold into the semiconductor substrate from one of the first and second surfaces of the semiconductor substrate, removing platinum- or gold-comprising residues remaining on the one of the first and second surfaces after diffusing the platinum or gold, forming a phosphorus- or boron-doped surface barrier layer on the first or second surface, and heating the semiconductor substrate for local gettering of the platinum or gold by the phosphorus- or boron-doped surface barrier layer.
    Type: Grant
    Filed: March 21, 2015
    Date of Patent: February 16, 2016
    Assignee: Infineon Technologies Austria AG
    Inventors: Gerhard Schmidt, Josef-Georg Bauer
  • Patent number: 9209027
    Abstract: A method includes implanting recombination center atoms via a first surface into a semiconductor body and causing the implanted recombination center atoms to diffuse in the semiconductor body in a first diffusion process.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: December 8, 2015
    Assignee: Infineon Technologies AG
    Inventors: Gerhard Schmidt, Josef Georg Bauer
  • Publication number: 20150200247
    Abstract: A power semiconductor device has a semiconductor body having a first surface and a second surface that runs substantially parallel to the first surface. A first metallization is arranged on the first surface. A second metallization is arranged on the second surface. The semiconductor body includes an n-doped first semiconductor region spaced apart from the first metallization and having a first maximum doping concentration, an n-doped second semiconductor region having a second maximum doping concentration higher than the first maximum doping concentration and adjoining the first semiconductor region, and a third semiconductor region in ohmic contact with the second metallization, arranged between the second metallization and the second semiconductor region, and adjoining the second semiconductor region. The second semiconductor region is made of a semiconductor material which includes electrically active chalcogen impurities as donors.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 16, 2015
    Inventors: Gerhard Schmidt, Josef Georg Bauer
  • Publication number: 20150194491
    Abstract: Method of producing a vertically inhomogeneous platinum or gold distribution in a semiconductor substrate with a first and a second surface opposite the first surface, with diffusing platinum or gold into the semiconductor substrate from one of the first and second surfaces of the semiconductor substrate, removing platinum- or gold-comprising residues remaining on the one of the first and second surfaces after diffusing the platinum or gold, forming a phosphorus- or boron-doped surface barrier layer on the first or second surface, and heating the semiconductor substrate for local gettering of the platinum or gold by the phosphorus- or boron-doped surface barrier layer.
    Type: Application
    Filed: March 21, 2015
    Publication date: July 9, 2015
    Inventors: Gerhard Schmidt, Josef-Georg Bauer
  • Publication number: 20150056788
    Abstract: A semiconductor device includes a semiconductor body with a first surface, a contact electrode arranged on the first surface, and a passivation layer on the first surface adjacent the contact electrode. The passivation layer includes a layer stack with an amorphous semi-insulating layer on the first surface, a first nitride layer on the amorphous semi-insulating layer, and a second nitride layer on the first nitride layer.
    Type: Application
    Filed: September 30, 2014
    Publication date: February 26, 2015
    Inventors: Gerhard Schmidt, Josef-Georg Bauer, Carsten Schaeffer, Oliver Humbel, Angelika Koprowski, Sirinpa Monayakul
  • Patent number: 8884342
    Abstract: A semiconductor device includes a semiconductor body with a first surface, a contact electrode arranged on the first surface, and a passivation layer on the first surface adjacent the contact electrode. The passivation layer includes a layer stack with an amorphous semi-insulating layer on the first surface, a first nitride layer on the amorphous semi-insulating layer, and a second nitride layer on the first nitride layer.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: November 11, 2014
    Assignee: Infineon Technologies AG
    Inventors: Gerhard Schmidt, Josef-Georg Bauer, Carsten Schaeffer, Oliver Humbel, Angelika Koprowski, Sirinpa Monayakul
  • Publication number: 20140061733
    Abstract: A semiconductor device includes a semiconductor body with a first surface, a contact electrode arranged on the first surface, and a passivation layer on the first surface adjacent the contact electrode. The passivation layer includes a layer stack with an amorphous semi-insulating layer on the first surface, a first nitride layer on the amorphous semi-insulating layer, and a second nitride layer on the first nitride layer.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Gerhard Schmidt, Josef-Georg Bauer, Carsten Schaeffer, Oliver Humbel, Angelika Koprowski, Sirinpa Monayakul
  • Patent number: 7612388
    Abstract: The power semiconductor element has an emitter region and a stop zone in front of the emitter region. The conductivities of the emitter region and of the stop zone are opposed to one another. In order to reduce not only the static but also the dynamic loss of the power semiconductor foreign atoms are used in the stop-zone. The foreign atoms have at least one energy level within the band gap of the semiconductor and at least 200 meV away from the conduction band and valence band of the semiconductor.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: November 3, 2009
    Assignee: Infineon Technologies AG
    Inventors: Josef-Georg Bauer, Heinrich Brunner, Hans-Joachim Schulze
  • Patent number: 7233031
    Abstract: A vertical power semiconductor component, e.g. a diode or an IGBT, in which there are formed, on the rear side of a substrate, a rear side emitter or a cathode emitter and, over that, a rear side metal layer that at least partly covers the latter, is defined by the fact that, in the edge region of the component, provision is made of injection attenuation means for reducing the charge carrier injection from the rear side emitter or the cathode emitter into said edge section.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: June 19, 2007
    Assignee: Infineon Technologies AG
    Inventors: Anton Mauder, Holger RĂ¼thing, Gerhard Miller, Hans Joachim Schulze, Josef Georg Bauer, Elmar Falck
  • Publication number: 20050035405
    Abstract: A vertical power semiconductor component, e.g. a diode or an IGBT, in which there are formed, on the rear side (R) of a substrate (S), a rear side emitter (14, 14a) or a cathode emitter (24) and, over that, a rear side metal layer (15; 25) that at least partly covers the latter, is defined by the fact that, in the edge region (11; 21) of the component (1-4), provision is made of injection attenuation means (18; 28; 14a; 15a) for reducing the charge carrier injection from the rear side emitter (14, 14a) or the cathode emitter (24) into said edge section (11; 21).
    Type: Application
    Filed: July 7, 2004
    Publication date: February 17, 2005
    Applicant: Infineon Technologies AG
    Inventors: Anton Mauder, Holger Ruthing, Gerhard Miller, Hans Schulze, Josef Georg Bauer, Elmar Falck
  • Publication number: 20010005024
    Abstract: The power semiconductor element has an emitter region and a stop zone in front of the emitter region. The conductivities of the emitter region and of the stop zone are opposed to one another. In order to reduce not only the static but also the dynamic loss of the power semiconductor foreign atoms are used in the stop-zone. The foreign atoms have at least one energy level within the band gap of the semiconductor and at least 200 meV away from the conduction band and valence band of the semiconductor.
    Type: Application
    Filed: January 17, 2001
    Publication date: June 28, 2001
    Inventors: Josef-Georg Bauer, Heinrich Brunner, Hans-Joachim Schulze