Patents by Inventor Werner Schustereder

Werner Schustereder 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: 20180138266
    Abstract: A method of producing a semiconductor device includes providing a semiconductor body including a semiconductor body material having a dopant diffusion coefficient that is smaller than the corresponding dopant diffusion coefficient of silicon. At least one first semiconductor region doped with dopants of a first conductivity type is produced in the semiconductor body, including by applying a first implantation of first implantation ions. At least one second semiconductor region adjacent to the at least one first semiconductor region and doped with dopants of a second conductivity type complementary to the first conductivity type is produced in the semiconductor body, including by applying a second implantation of second implantation ions.
    Type: Application
    Filed: December 26, 2017
    Publication date: May 17, 2018
    Inventors: Hans-Joachim Schulze, Wolfgang Jantscher, Roland Rupp, Werner Schustereder, Hans Weber
  • Patent number: 9972704
    Abstract: A method for forming a semiconductor device comprises implanting a defined dose of protons into a semiconductor substrate and tempering the semiconductor substrate according to a defined temperature profile. At least one of the defined dose of protons and the defined temperature profile is selected depending on a carbon-related parameter indicating information on a carbon concentration within at least a part of the semiconductor substrate.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: May 15, 2018
    Assignee: Infineon Technologies AG
    Inventors: Moriz Jelinek, Johannes Georg Laven, Helmut Oefner, Hans-Joachim Schulze, Werner Schustereder
  • Publication number: 20180122895
    Abstract: Crystal lattice defects are generated in a horizontal surface portion of a semiconductor substrate and hydrogen-related donors are formed in the surface portion. Information is obtained about a cumulative dopant concentration of dopants, including the hydrogen-related donors, in the surface portion. Based on the information about the cumulative dopant concentration and a dissociation rate of the hydrogen-related donors, a main temperature profile is determined for dissociating a defined portion of the hydrogen-related donors. The semiconductor substrate is subjected to a main heat treatment applying the main temperature profile to obtain, in the surface portion, a final total dopant concentration deviating from a target dopant concentration by not more than 15%.
    Type: Application
    Filed: October 25, 2017
    Publication date: May 3, 2018
    Inventors: Moriz Jelinek, Hans Weber, Hans-Joachim Schulze, Johannes Georg Laven, Werner Schustereder
  • Patent number: 9960044
    Abstract: A method for forming a semiconductor device includes implanting doping ions into a semiconductor substrate. A deviation between a main direction of a doping ion beam implanting the doping ions and a main crystal direction of the semiconductor substrate is less than ±0.5° during the implanting of the doping ions into the semiconductor substrate. The method further includes controlling a temperature of the semiconductor substrate during the implantation of the doping ions so that the temperature of the semiconductor substrate is within a target temperature range for more than 70% of an implant process time used for implanting the doping ions. The target temperature range reaches from a lower target temperature limit to an upper target temperature limit. The lower target temperature limit is equal to a target temperature minus 30° C., and the target temperature is higher than 80° C.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: May 1, 2018
    Assignee: Infineon Technologies AG
    Inventors: Johannes Georg Laven, Hans-Joachim Schulze, Werner Schustereder
  • Publication number: 20180102423
    Abstract: A semiconductor device includes at least one transistor structure. The at least one transistor structure includes an emitter or source terminal, and a collector or drain terminal. A carbon concentration within a semiconductor substrate region located between the emitter or source terminal and the collector or drain terminal varies between the emitter or source terminal and the collector or drain terminal.
    Type: Application
    Filed: December 4, 2017
    Publication date: April 12, 2018
    Inventors: Hans-Joachim Schulze, Moriz Jelinek, Johannes Laven, Helmut Oefner, Werner Schustereder
  • Patent number: 9934988
    Abstract: Disclosed is a method for processing a semiconductor wafer. The method includes forming an oxygen containing region in the semiconductor wafer, wherein forming the oxygen containing region includes introducing oxygen via a first surface into the semiconductor wafer. The method further includes creating vacancies at least in the oxygen containing region and annealing at least the oxygen containing region in an annealing process so as to form oxygen precipitates.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: April 3, 2018
    Assignee: Infineon Technologies AG
    Inventors: Werner Schustereder, Helmut Oefner, Hans-Joachim Schulze, Sandeep Walia
  • Publication number: 20180088042
    Abstract: A method of determining the carbon content in a silicon sample may include: generating electrically active polyatomic complexes within the silicon sample. Each polyatomic complex may include at least one carbon atom. The method may further include: determining a quantity indicative of the content of the generated polyatomic complexes in the silicon sample, and determining the carbon content in the silicon sample from the determined quantity.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 29, 2018
    Inventors: Naveen Goud GANAGONA, Moriz JELINEK, Helmut OEFNER, Hans-Joachim SCHULZE, Werner SCHUSTEREDER
  • Publication number: 20180061644
    Abstract: A semiconductor device and method is disclosed. In one example, the method for forming a semiconductor device includes forming a trench extending from a front side surface of a semiconductor substrate into the semiconductor substrate. The method includes forming of material to be structured inside the trench. Material to be structured is irradiated with a tilted reactive ion beam at a non-orthogonal angle with respect to the front side surface such that an undesired portion of the material to be structured is removed due to the irradiation with the tilted reactive ion beam while an irradiation of another portion of the material to be structured is masked by an edge of the trench.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Applicant: Infineon Technologies AG
    Inventors: Johannes Georg Laven, Anton Mauder, Hans-Joachim Schulze, Werner Schustereder
  • Publication number: 20180040691
    Abstract: Crystal lattice vacancies are generated in a pretreated section of a semiconductor layer directly adjoining a process surface. Dopants are implanted at least into the pretreated section. A melt section of the semiconductor layer is heated by irradiating the process surface with a laser beam activating the implanted dopants at least in the melt section.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 8, 2018
    Inventors: Alexander Breymesser, Hans-Joachim Schulze, Holger Schulze, Werner Schustereder
  • Publication number: 20180019132
    Abstract: Disclosed is a method that includes forming a plurality of semiconductor arrangements one above the other. In this method, forming each of the plurality of semiconductor arrangements includes: forming a semiconductor layer; forming a plurality of trenches in a first surface of the semiconductor layer; and implanting dopant atoms of at least one of a first type and a second type into at least one of a first sidewall and a second sidewall of each of the plurality of trenches of the semiconductor layer.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 18, 2018
    Inventors: Anton Mauder, Hans Weber, Franz Hirler, Johannes Georg Laven, Hans-Joachim Schulze, Werner Schustereder, Maximilian Treiber, Daniel Tutuc, Andreas Voerckel
  • Publication number: 20180019306
    Abstract: A method of manufacturing a semiconductor device includes determining information that indicates an extrinsic dopant concentration and an intrinsic oxygen concentration in a semiconductor wafer. On the basis of information about the extrinsic dopant concentration and the intrinsic oxygen concentration as well as information about a generation rate or a dissociation rate of oxygen-related thermal donors in the semiconductor wafer, a process temperature gradient is determined for generating or dissociating oxygen-related thermal donors to compensate for a difference between a target dopant concentration and the extrinsic dopant concentration.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 18, 2018
    Inventors: Johannes Georg Laven, Moriz Jelinek, Hans-Joachim Schulze, Werner Schustereder, Michael Stadtmueller
  • Publication number: 20180005830
    Abstract: By directing an ion beam with a beam divergence ? on a process surface of a semiconductor substrate, parallel electrode trenches are formed in the semiconductor substrate. A center axis of the directed ion beam is tilted to a normal to the process surface at a tilt angle ?, wherein at least one of the tilt angle ? and the beam divergence ? is not equal to zero. The semiconductor substrate is moved along a direction parallel to the process surface during formation of the electrode trenches. A conductive electrode is formed in the electrode trenches, wherein first sidewalls of the electrode trenches are tilted to the normal by a first slope angle ? 1 with ? 1=(?+0/2) and second sidewalls are tilted to the normal by a second slope angle ? 2 with ? 2=(???/2).
    Type: Application
    Filed: June 27, 2017
    Publication date: January 4, 2018
    Applicant: Infineon Technologies AG
    Inventors: Johannes Georg Laven, Anton Mauder, Roland Rupp, Hans-Joachim Schulze, Werner Schustereder
  • Patent number: 9859361
    Abstract: A semiconductor device includes a semiconductor body having a semiconductor body material with a dopant diffusion coefficient that is smaller than the corresponding dopant diffusion coefficient of silicon, at least one first semiconductor region doped with dopants of a first conductivity type and having a columnar shape that extends into the semiconductor body along an extension direction, wherein a respective width of the at least one first semiconductor region continuously increases along the extension direction; and at least one second semiconductor region included in the semiconductor body. The at least one second semiconductor region is arranged adjacent to the at least one first semiconductor region, and is doped with dopants of a second conductivity type complementary to the first conductivity type.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: January 2, 2018
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Wolfgang Jantscher, Roland Rupp, Werner Schustereder, Hans Weber
  • Patent number: 9853137
    Abstract: A method for forming a semiconductor device comprises implanting a defined dose of protons into a semiconductor substrate and tempering the semiconductor substrate according to a defined temperature profile. At least one of the defined dose of protons and the defined temperature profile is selected depending on a carbon-related parameter indicating information on a carbon concentration within at least a part of the semiconductor substrate.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: December 26, 2017
    Assignee: Infineon Technologies AG
    Inventors: Moriz Jelinek, Johannes Georg Laven, Helmut Oefner, Hans-Joachim Schulze, Werner Schustereder
  • Patent number: 9825131
    Abstract: A method of manufacturing a semiconductor device includes determining information that indicates an extrinsic dopant concentration and an intrinsic oxygen concentration in a semiconductor wafer. On the basis of information about the extrinsic dopant concentration and the intrinsic oxygen concentration as well as information about a generation rate or a dissociation rate of oxygen-related thermal donors in the semiconductor wafer, a process temperature gradient is determined for generating or dissociating oxygen-related thermal donors to compensate for a difference between a target dopant concentration and the extrinsic dopant concentration.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: November 21, 2017
    Assignee: Infineon Technologies AG
    Inventors: Johannes Georg Laven, Moriz Jelinek, Hans-Joachim Schulze, Werner Schustereder, Michael Stadtmueller
  • Patent number: 9809877
    Abstract: An ion implantation apparatus includes an ion beam directing unit, a substrate support, and a controller. The controller is configured to effect a relative movement between an ion beam passing the ion beam directing unit and the substrate support. A beam track of the ion beam on a substrate mounted on the substrate support includes circles or a spiral.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: November 7, 2017
    Assignee: Infineon Technologies AG
    Inventors: Alexander Breymesser, Stephan Voss, Hans-Joachim Schulze, Werner Schustereder
  • Patent number: 9812563
    Abstract: A transistor cell includes, in a semiconductor body, a drift region of a first doping type, a source region of the first doping type, a body region of a second doping type, and a drain region of the first doping type. The body region is arranged between the source and drift regions. The drift region is arranged between the body and drain regions. A gate electrode is adjacent the body region and dielectrically insulated from the body region by a gate dielectric, and a field electrode is dielectrically insulated from the drift region by a field electrode dielectric. The drift region includes an avalanche region having a higher doping concentration than sections of the drift region adjacent the avalanche region and which is spaced apart from the field electrode dielectric in a direction perpendicular to the current flow direction. The field electrode is arranged in a needle-shaped trench.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: November 7, 2017
    Assignee: Infineon Technologies AG
    Inventors: Ralf Siemieniec, Markus Zundel, Karl-Heinz Bach, Franz Hirler, Christian Kampen, Werner Schustereder
  • Publication number: 20170243747
    Abstract: A method for implanting ions into a semiconductor substrate includes performing a test implantation of ions into a semiconductor substrate. The ions of the test implantation are implanted with a first implantation angle range over the semiconductor substrate. Further, the method includes determining an implantation angle offset based on the semiconductor substrate after the test implantation and adjusting a tilt angle of the semiconductor substrate with respect to an implantation direction based on the determined implantation angle offset. Additionally, the method includes performing at least one target implantation of ions into the semiconductor substrate after the adjustment of the tilt angle. The ions of the at least one target implantation are implanted with a second implantation angle range over the semiconductor substrate. Further, the first implantation angle range is larger than the second implantation angle range.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 24, 2017
    Inventors: Michael Brugger, Moriz Jelinek, Johannes Georg Laven, Hans-Joachim Schulze, Werner Schustereder
  • Patent number: 9728627
    Abstract: A method for forming a semiconductor device comprises implanting a defined dose of protons into a semiconductor substrate and tempering the semiconductor substrate according to a defined temperature profile. At least one of the defined dose of protons and the defined temperature profile is selected depending on a carbon-related parameter indicating information on a carbon concentration within at least a part of the semiconductor substrate.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: August 8, 2017
    Assignee: Infineon Technologies AG
    Inventors: Moriz Jelinek, Johannes Georg Laven, Helmut Oefner, Hans-Joachim Schulze, Werner Schustereder
  • Publication number: 20170170028
    Abstract: Disclosed is a method for processing a semiconductor wafer. The method includes forming an oxygen containing region in the semiconductor wafer, wherein forming the oxygen containing region includes introducing oxygen via a first surface into the semiconductor wafer. The method further includes creating vacancies at least in the oxygen containing region and annealing at least the oxygen containing region in an annealing process so as to form oxygen precipitates.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 15, 2017
    Inventors: Werner Schustereder, Helmut Oefner, Hans-Joachim Schulze, Sandeep Walia