Patents by Inventor Michael Rueb

Michael Rueb 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: 7973362
    Abstract: A semiconductor component includes a semiconductor body having an edge with an edge zone of a first conductivity type. Charge compensation regions of a second conductivity type are embedded into the edge zone, with the charge compensation regions extending from a top side of the semiconductor component vertically into the semiconductor body. For the number Ns of charge carriers present in a volume Vs between two charge compensation regions that are adjacent in a direction perpendicular to the edge, and for the number Np of charge carriers present in a volume Vp between two charge compensation regions that are adjacent in a direction parallel to the edge, Np>Ns holds true.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: July 5, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Michael Rueb, Carolin Tolksdorf, Markus Schmitt
  • Patent number: 7868396
    Abstract: A power semiconductor component includes a drift zone in a semiconductor body, a component junction and a compensation zone. The component junction is disposed between the drift zone and a further component zone, which is configured such that when a blocking voltage is applied to the component junction, a space charge zone forms extending generally in a first direction in the drift zone. The compensation zone is disposed adjacent to the drift zone in a second direction and includes at least one high-dielectric material having a temperature-dependent dielectric constant. The temperature dependence of the compensation zone varies in the second direction.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: January 11, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Rueb, Franz Hirler
  • Patent number: 7821064
    Abstract: A lateral MISFET having a semiconductor body has a doped semiconductor substrate of a first conduction type and an epitaxial layer of a second conduction type, which is complementary to the first conduction type, the epitaxial layer being provided on the semiconductor substrate. This MISFET has, on the top side of the semiconductor body, a drain, a source, and a gate electrode with gate insulator. A semiconductor zone of the first conduction type is embedded in the epitaxial layer in a manner adjoining the gate insulator, a drift zone of the second conduction type being arranged between the semiconductor zone and the drain electrode in the epitaxial layer. The drift zone has pillar-type regions which are arranged in rows and columns and whose boundary layers have a metal layer which in each case forms a Schottky contact with the material of the drift zone.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: October 26, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Rueb, Markus Schmitt, Carolin Tolksdorf, Uwe Wahl, Armin Willmeroth
  • Patent number: 7745273
    Abstract: A method for manufacturing a semiconductor device. The method includes providing a semiconductor body of a conductivity type, wherein the semiconductor body comprises a first surface. At least one buried region of a second conductivity type is formed in the semiconductor body and at least a surface region of the second conductivity type is formed at the first surface of the semiconductor body, wherein the buried region and the surface region are formed such that they are spaced apart from each other. The buried region is formed by deep implantation of a first dopant of the second conductivity type.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: June 29, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Treu, Roland Rupp, Michael Rueb, Rudolf Elpelt
  • Publication number: 20100078775
    Abstract: A semiconductor device has a cell field with drift zones of a first type of conductivity and charge carrier compensation zones of a second type of conductivity complementary to the first type. An edge region which surrounds the cell field has a higher blocking strength than the cell field, the edge region having a near-surface area which is undoped to more weakly doped than the drift zones, and beneath the near-surface area at least one buried, vertically extending complementarily doped zone is positioned.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Franz Hirler, Armin Willmeroth, Michael Rueb, Holger Kapels
  • Patent number: 7687843
    Abstract: A process for producing structures in a semiconductor zone, has the steps of a) producing a trench (2) in the semiconductor zone (18), b) filling the trench with a photoresist (19), and c) exposing the photoresist (19) using ion beams (20), d) developing the photoresist (19). The energy density and ion dose for the ion beams (20) are selected in such a way that the photoresist (19) is only chemically changed at defined depths, so as to produce two regions, in the first region (21) of which the photoresist has been chemically changed at the defined depths by the ion beams (20), and in the second region of which the photoresist has been left chemically unchanged, so that during the developing step the photoresist is removed in precisely one of the two regions.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: March 30, 2010
    Assignee: Infineon Technologies AG
    Inventor: Michael Rueb
  • Publication number: 20090267174
    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: April 29, 2008
    Publication date: October 29, 2009
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Armin Willmeroth, Michael Rueb
  • Patent number: 7576410
    Abstract: A power transistor has a source region, a drain region, a semiconductor body arranged between the source region and the drain region, and a plurality of nanotubes. The plurality of nanotubes are connected in parallel and disposed in the semiconductor body such that the plurality of nanotubes are electrically insulated from the semiconductor body and electrically connect the source and drain regions of the transistor. The power transistor also includes at least one diode formed in the semiconductor body. A portion of the at least one diode formed in the semiconductor body is configured to act as a gate electrode for the transistor.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 18, 2009
    Assignee: Infineon Technologies AG
    Inventors: Michael Rueb, Gerhard Schmidt
  • Publication number: 20090189240
    Abstract: A semiconductor component with at least one field plate. One embodiment provides the field plate to make contact with the semiconductor body at a connection contact. The semiconductor body has in the region of the connection contact a doping concentration that is less than 5·1017 cm?3.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Armin Willmeroth, Anton Mauder, Michael Rueb, Franz Hirler
  • Publication number: 20090159927
    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: December 21, 2007
    Publication date: June 25, 2009
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Armin Willmeroth, Winfried Kaindl, Carolin Tolksdorf, Michael Rueb
  • Publication number: 20090085064
    Abstract: A semiconductor device includes a first semiconductor substrate of a first band-gap material and a second semiconductor substrate of a second band-gap material. The second band-gap material has a lower band-gap than the first band-gap material. A heterojunction is formed between the first semiconductor substrate and the second semiconductor substrate substantially in a first plane. The semiconductor device further includes, in a cross-section which is perpendicular to the first plane, a first semiconductor region of a first conductivity type and a second semiconductor region of the first conductivity type both of which extend from the second semiconductor substrate at least partially into the first semiconductor substrate.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: Infineon Technologies Austria AG
    Inventors: Michael Rueb, Michael Treu, Armin Willmeroth, Franz Hirler
  • Publication number: 20090032848
    Abstract: A method for manufacturing a semiconductor device. The method includes providing a semiconductor body of a conductivity type, wherein the semiconductor body comprises a first surface. At least one buried region of a second conductivity type is formed in the semiconductor body and at least a surface region of the second conductivity type is formed at the first surface of the semiconductor body, wherein the buried region and the surface region are formed such that they are spaced apart from each other. The buried region is formed by deep implantation of a first dopant of the second conductivity type.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Applicant: Infineon Technologies Austria AG
    Inventors: Michael Treu, Roland Rupp, Michael Rueb, Rudolf Elpelt
  • Patent number: 7459365
    Abstract: The fabrication of a semiconductor component having a semiconductor body in which is arranged a very thin dielectric layer having sections which run in the vertical direction and which extend very deeply into the semiconductor body is disclosed. In one method a trench is formed in a drift zone region proceeding from the front side of a semiconductor body, a sacrificial layer is produced on at least a portion of the sidewalls of the trench and at least a portion of the trench is filled with a semiconductor material which is chosen such that the quotient of the net dopant charge of the semiconductor material in the trench and the total area of the sacrificial layer on the sidewalls of the trench between the semiconductor material and the drift zone region is less than the breakdown charge of the semiconductor material, and the sacrificial layer is replaced with a dielectric.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: December 2, 2008
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Rüb, Herbert Schäfer, Armin Willmeroth, Anton Mauder, Stefan Sedlmaier, Roland Rupp, Manfred Pippan, Hans Weber, Frank Pfirsch, Franz Hirler, Hans-Joachim Schulze
  • Publication number: 20080237701
    Abstract: A semiconductor component includes a semiconductor body having an edge with an edge zone of a first conductivity type. Charge compensation regions of a second conductivity type are embedded into the edge zone, with the charge compensation regions extending from a top side of the semiconductor component vertically into the semiconductor body. For the number Ns of charge carriers present in a volume Vs between two charge compensation regions that are adjacent in a direction perpendicular to the edge, and for the number Np of charge carriers present in a volume Vp between two charge compensation regions that are adjacent in a direction parallel to the edge, Np>Ns holds true.
    Type: Application
    Filed: October 3, 2007
    Publication date: October 2, 2008
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Armin Willmeroth, Michael Rueb, Carolin Tolksdorf, Markus Schmitt
  • Publication number: 20080203470
    Abstract: A transistor is provided which includes a lateral compensation component. The lateral compensation component includes a plurality of n (or n?) layer/p (or p?) layer pairs, wherein adjacent ones of said pairs are separated by one of an insulator region and/or an intrinsic silicon region.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Michael Rueb, Holger Kapels, Carolin Tolksdorf, Giulliano Rocco Aloise
  • Publication number: 20080203517
    Abstract: A semiconductor component is proposed which has a semiconductor body having a first semiconductor zone of the first conduction type, at least one first rectifying junction with respect to the first semiconductor zone, at least one second rectifying junction with respect to the first semiconductor zone, wherein the three rectifying junctions each have a barrier height of different magnitude.
    Type: Application
    Filed: February 26, 2008
    Publication date: August 28, 2008
    Applicant: Infineon Technologies AG
    Inventors: MICHAEL RUEB, Roland Rupp, Michael Treu
  • Publication number: 20080067626
    Abstract: A semiconductor device, in which a first trench section is produced proceeding from a surface of a semiconductor body into the semiconductor body. A semiconductor layer is produced above the surface and above the first trench section. A further trench section is produced in the semiconductor layer in such a way that the first trench section and the further trench section form a continuous trench structure.
    Type: Application
    Filed: August 6, 2007
    Publication date: March 20, 2008
    Applicant: Infineon Technologies Austria AG
    Inventors: Franz Hirler, Thoralf Kautzsch, Anton Mauder, Michael Rueb, Hans-Joachim Schulze, Helmut Strack, Armin Willmeroth
  • Publication number: 20070200183
    Abstract: A power semiconductor component includes a drift zone in a semiconductor body, a component junction and a compensation zone. The component junction is disposed between the drift zone and a further component zone, which is configured such that when a blocking voltage is applied to the component junction, a space charge zone forms extending generally in a first direction in the drift zone. The compensation zone is disposed adjacent to the drift zone in a second direction and includes at least one high-dielectric material having a temperature-dependent dielectric constant. The temperature dependence of the compensation zone varies in the second direction.
    Type: Application
    Filed: January 31, 2007
    Publication date: August 30, 2007
    Applicant: Infineon Technologies Austria AG
    Inventors: Michael Rueb, Franz Hirler
  • Publication number: 20070069301
    Abstract: A power transistor has a source region, a drain region, a semiconductor body arranged between the source region and the drain region, and a plurality of nanotubes. The plurality of nanotubes are connected in parallel and disposed in the semiconductor body such that the plurality of nanotubes are electrically insulated from the semiconductor body and electrically connect the source and drain regions of the transistor. The power transistor also includes at least one diode formed in the semiconductor body. A portion of the at least one diode formed in the semiconductor body is configured to act as a gate electrode for the transistor.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Applicant: Infineon Technologies AG
    Inventors: Michael Rueb, Gerhard Schmidt
  • Publication number: 20060261384
    Abstract: A lateral MISFET having a semiconductor body has a doped semiconductor substrate of a first conduction type and an epitaxial layer of a second conduction type, which is complementary to the first conduction type, the epitaxial layer being provided on the semiconductor substrate. This MISFET has, on the top side of the semiconductor body, a drain, a source, and a gate electrode with gate insulator. A semiconductor zone of the first conduction type is embedded in the epitaxial layer in a manner adjoining the gate insulator, a drift zone of the second conduction type being arranged between the semiconductor zone and the drain electrode in the epitaxial layer. The drift zone has pillar-type regions which are arranged in rows and columns and whose boundary layers have a metal layer which in each case forms a Schottky contact with the material of the drift zone.
    Type: Application
    Filed: March 14, 2006
    Publication date: November 23, 2006
    Inventors: Michael Rueb, Markus Schmitt, Carolin Tolksdorf, Uwe Wahl, Armin Willmeroth