Patents by Inventor Joachim Krumrey

Joachim Krumrey 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: 20110095360
    Abstract: A transistor component and method of forming a transistor component. One embodiment provides a semiconductor arrangement including a semiconductor body having a at least one first trench, a first field electrode arranged in the lower trench section of the at least one first trench and being insulated from the semiconductor body by a field electrode dielectric. A dielectric layer is formed on the first field electrode in the at least one first trench, including depositing a dielectric material on a first side of the semiconductor body and on the field plate at a higher deposition rate than on sidewalls of the at least one first trench.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 28, 2011
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Joachim Krumrey, Gerhard Noebauer, Martin Poelzl, Marc Probst
  • Patent number: 7859051
    Abstract: The application relates to a semiconductor device made of silicon with regionally reduced band gap and a process for the production of same. One embodiment provides a semiconductor device including a body zone, a drain zone and a source zone. A gate extends between the source zone and the drain zone. A reduced band gap region is provided in a region of the body zone, made of at least ternary compound semiconductor material.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: December 28, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Ralf Siemieniec, Christian Foerster, Joachim Krumrey, Franz Hirler
  • Publication number: 20100187605
    Abstract: One aspect is monolithic semiconductor switches and method for manufacturing. One embodiment provides one semiconductor die with a first and a second FET. One of source/drain of the first FET and one of source/drain of the second FET are electrically coupled to at least one contact area at a first side of one semiconductor die, respectively. The other one of source/drain of the first FET, a gate of the first FET, the other one of source/drain of the second FET and the gate of the second FET are electrically coupled to contact areas at a second side of the one semiconductor die opposite to the first side, respectively. The contact areas of the other one of source/drain of the first FET, of the gate of the first FET, of the other one of source/drain of the second FET and of the gate of the second FET are electrically separated from each other, respectively.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 29, 2010
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Oliver Haeberlen, Walter Rieger, Lutz Goergens, Martin Poelzl, Johannes Schoiswohl, Joachim Krumrey
  • Publication number: 20100117144
    Abstract: In one embodiment, a field effect transistor has a semiconductor body, a drift region of a first conductivity type and a gate electrode. At least one trench extends into the drift region. A field plate is arranged at least in a portion of the at least one trench. A dielectric material at least partially surrounds both the gate electrode and the field plate. The field plate includes a first semiconducting material.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 13, 2010
    Applicant: Infineon Technologies Austria AG
    Inventors: Franz Hirler, Walter Rieger, Andrew Wood, Mathias Born, Ralf Siemieniec, Jan Ropohl, Martin Poelzl, Oliver Blank, Uli Hiller, Oliver Haeberlen, Rudolf Zelsacher, Maximilian Roesch, Joachim Krumrey
  • Publication number: 20100078707
    Abstract: A semiconductor device includes a source metallization, a source region of a first conductivity type in contact with the source metallization, a body region of a second conductivity type which is adjacent to the source region. The semiconductor device further includes a first field-effect structure including a first insulated gate electrode and a second field-effect structure including a second insulated gate electrode which is electrically connected to the source metallization. The capacitance per unit area between the second insulated gate electrode and the body region is larger than the capacitance per unit area between the first insulated gate electrode and the body region.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Oliver Haeberlen, Joachim Krumrey, Franz Hirler, Walter Rieger
  • Publication number: 20100044720
    Abstract: The application relates to a semiconductor device made of silicon with regionally reduced band gap and a process for the production of same. One embodiment provides a semiconductor device including a body zone, a drain zone and a source zone. A gate extends between the source zone and the drain zone. A reduced band gap region is provided in a region of the body zone, made of at least ternary compound semiconductor material.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 25, 2010
    Applicant: Infineon Technologies Austria AG
    Inventors: Ralf Siemieniec, Christian Foerster, Joachim Krumrey, Franz Hirler
  • Patent number: 7598143
    Abstract: A method for producing an integrated circuit including a semiconductor and in one embodiment a trench transistor structure, is disclosed. A first diffusion method is carried out. A second diffusion method is carried out, by which dopant atoms of a second conduction type are introduced via a first side into a mesa region and into a component region, which form a source zone in the mesa region, the diffusion methods being coordinated with one another in such a way that the dopant atoms of a second conduction type indiffuse further than the dopant atoms of a first conduction type from the first diffusion method, in the vertical direction in the component region and indiffuse not as far as the dopant atoms of the first conduction type in the vertical direction in the mesa region.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: October 6, 2009
    Assignee: Infineon Technologies Austria AG
    Inventors: Markus Zundel, Joachim Krumrey
  • Patent number: 7465987
    Abstract: A trench transistor structure having a field electrode arrangement formed in trenches is disclosed. In one embodiment, the field electrode arrangement is conductively connected to subvoltage taps of a voltage divider for the purpose of stabilizing the potentials on a longer time scale than dynamic charge reversal processes.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: December 16, 2008
    Assignee: Infineon Technologies Austria AG
    Inventors: Joachim Krumrey, Franz Hirler, Walter Rieger
  • Publication number: 20080076222
    Abstract: A method for producing an integrated circuit including a semiconductor and in one embodiment a trench transistor structure, is disclosed. A first diffusion method is carried out. A second diffusion method is carried out, by which dopant atoms of a second conduction type are introduced via a first side into a mesa region and into a component region, which form a source zone in the mesa region, the diffusion methods being coordinated with one another in such a way that the dopant atoms of a second conduction type indiffuse further than the dopant atoms of a first conduction type from the first diffusion method, in the vertical direction in the component region and indiffuse not as far as the dopant atoms of the first conduction type in the vertical direction in the mesa region.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 27, 2008
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Markus Zundel, Joachim Krumrey
  • Publication number: 20070085136
    Abstract: A trench transistor structure having a field electrode arrangement formed in trenches is disclosed. In one embodiment, the field electrode arrangement is conductively connected to subvoltage taps of a voltage divider for the purpose of stabilizing the potentials on a longer time scale than dynamic charge reversal processes.
    Type: Application
    Filed: August 31, 2006
    Publication date: April 19, 2007
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Joachim Krumrey, Franz Hirler, Walter Rieger
  • Publication number: 20070018338
    Abstract: A connection element is arranged on a connection area of a semiconductor component. The connection element includes at least one bonding wire portion fixed on the connection area. The connection area is covered by an electrically conductive material, the fixed bonding wire portion being surrounded or embedded by the electrically conductive material.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 25, 2007
    Inventors: Khalil Hosseini, Joachim Krumrey, Joachim Mahler, Gerhard Noebauer
  • Patent number: 7091573
    Abstract: The power transistor has a trench cell in a semiconductor body. A lower edge of the gate electrode has a profile which is not horizontal, i.e., not planar with respect to the field electrode.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: August 15, 2006
    Assignee: Infineon Technologies AG
    Inventors: Franz Hirler, Jenoe Tihanyi, Ralf Henninger, Joachim Krumrey, Martin Poelzl, Walter Rieger
  • Patent number: 7005351
    Abstract: A method for fabricating a transistor configuration including at least one trench transistor cell has a gate electrode and a field electrode disposed in a trench below the gate electrode. The trenches are formed in a semiconductor substrate. A drift zone, a channel zone, and a source zone are in each case provided in the semiconductor substrate. According to the invention, the source zone and/or the channel zone are formed at the earliest after the introduction of the trenches into the semiconductor substrate by implantation and diffusion.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: February 28, 2006
    Assignee: Infineon Technologies AG
    Inventors: Ralf Henninger, Franz Hirler, Joachim Krumrey, Walter Rieger, Martin Pölzl, Heimo Hofer
  • Patent number: 6998678
    Abstract: The present invention relates to a semiconductor arrangement with a MOS transistor which has a gate electrode (40), arranged in a trench running in the vertical direction of a semiconductor body (100), and a Schottky diode which is connected in parallel with a drain-source path (D-S) and is formed by a Schottky contact between a source electrode and the semiconductor body.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: February 14, 2006
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Werner, Franz Hirler, Joachim Krumrey, Walter Rieger
  • Patent number: 6891223
    Abstract: Transistor configurations have trench transistor cells disposed along trenches in a semiconductor substrate with two or more electrode structures disposed in the trenches, and also metallizations are disposed above a substrate surface of the semiconductor substrate. The trenches extend into an inactive edge region of the transistor configuration and an electrically conductive connection between the electrode structures and corresponding metallizations are provided in the edge region.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: May 10, 2005
    Assignee: Infineon Technologies AG
    Inventors: Joachim Krumrey, Franz Hirler, Ralf Henninger, Martin Pölzl, Walter Rieger
  • Patent number: 6806533
    Abstract: A semiconductor component has a cell array formed in a semiconductor body with a number of identical transistor cells and at least one edge cell formed at an edge of the cell array. Each of the transistor cells has a control electrode, which is formed in a trench, and the edge cell has a field plate, which is formed in a trench, with a distance between the trench of the edge cell and the trench of the immediately adjacent transistor cell being less than the distance between a trench of a transistor cell and the trench of an immediately adjacent transistor cell in the cell array.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: October 19, 2004
    Assignee: Infineon Technologies AG
    Inventors: Ralf Henninger, Franz Hirler, Joachim Krumrey, Markus Zundel, Walter Rieger, Martin Pölzl
  • Publication number: 20040089910
    Abstract: The power transistor has a trench cell in a semiconductor body. A lower edge of the gate electrode has a profile which is not horizontal, i.e., not planar with respect to the field electrode.
    Type: Application
    Filed: September 18, 2003
    Publication date: May 13, 2004
    Applicant: Infineon Technologies AG
    Inventors: Franz Hirler, Jenoe Tihanyi, Ralf Henninger, Joachim Krumrey, Martin Poelzl, Walter Rieger
  • Publication number: 20040031987
    Abstract: A method for fabricating a transistor configuration including at least one trench transistor cell has a gate electrode and a field electrode disposed in a trench below the gate electrode. The trenches are formed in a semiconductor substrate. A drift zone, a channel zone, and a source zone are in each case provided in the semiconductor substrate. According to the invention, the source zone and/or the channel zone are formed at the earliest after the introduction of the trenches into the semiconductor substrate by implantation and diffusion.
    Type: Application
    Filed: March 19, 2003
    Publication date: February 19, 2004
    Inventors: Ralf Henninger, Franz Hirler, Joachim Krumrey, Walter Rieger, Martin Polzl, Heimo Hofer
  • Patent number: 6690062
    Abstract: The switching behavior of a transistor configuration is improved by providing a shielding electrode in an edge region. The shielding electrode surrounds at least sections of an active cell array. The capacitance between an edge gate structure and a drain zone and hence the gate-drain capacitance CGD of the transistor configuration is reduced by the shielding electrode located in the edge region.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: February 10, 2004
    Assignee: Infineon Technologies AG
    Inventors: Ralf Henninger, Franz Hirler, Joachim Krumrey, Walter Rieger, Martin Poelzl
  • Publication number: 20030222297
    Abstract: Transistor configurations have trench transistor cells disposed along trenches in a semiconductor substrate with two or more electrode structures disposed in the trenches, and also metallizations are disposed above a substrate surface of the semiconductor substrate. The trenches extend into an inactive edge region of the transistor configuration and an electrically conductive connection between the electrode structures and corresponding metallizations are provided in the edge region.
    Type: Application
    Filed: March 19, 2003
    Publication date: December 4, 2003
    Inventors: Joachim Krumrey, Franz Hirler, Ralf Henninger, Martin Plolz, Walter Rieger