Patents by Inventor Michael Treu

Michael Treu 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: 20160155861
    Abstract: A method of manufacturing a device comprises depositing one or more metallization layers to a substrate, locally heating an area of the one or more metallization layers to obtain a substrate/metallization-layer compound or a metallization-layer compound, the compound comprising an etch-selectivity toward an etching medium which is different to that of the one or more metallization layers outside the area, and removing the one or more metallization layers in the area or outside the area, depending on the etching selectivity in the area or outside the area, by etching with the etching medium to form the device.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Inventors: Roland Rupp, Stefan Woehlert, Thomas Gutt, Michael Treu
  • Publication number: 20160064504
    Abstract: A method of manufacturing a device comprises depositing one or more metallization layers to a substrate, locally heating an area of the one or more metallization layers to obtain a substrate/metallization-layer compound or a metallization-layer compound, the compound comprising an etch-selectivity toward an etching medium which is different to that of the one or more metallization layers outside the area, and removing the one or more metallization layers in the area or outside the area, depending on the etching selectivity in the area or outside the area, by etching with the etching medium to form the device.
    Type: Application
    Filed: November 6, 2015
    Publication date: March 3, 2016
    Inventors: Roland Rupp, Stefan Woehlert, Thomas Gutt, Michael Treu
  • Patent number: 9263443
    Abstract: A semiconductor device includes a first semiconductor die including a normally-off transistor and a second semiconductor die including a plurality of transistor cells of a normally-on GaN HEMT. One of a source terminal and a drain terminal of the normally-off transistor is electrically coupled to a gate terminal of the normally-on GaN HEMT, and the other one of the source terminal and the drain terminal of the normally-off transistor is electrically coupled to one of a source terminal and a drain terminal of the normally-on GaN HEMT. The second semiconductor die further includes a gate resistor electrically coupled between the gate terminal of the normally-off transistor and respective gates of the plurality of transistor cells, and a voltage clamping element electrically coupled between the gate terminal and one of the source terminal and the drain terminal of the normally-on GaN HEMT.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: February 16, 2016
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Treu, Ralf Siemieniec
  • Patent number: 9209281
    Abstract: A method of manufacturing a device comprises depositing one or more metallization layers to a substrate, locally heating an area of the one or more metallization layers to obtain a substrate/metallization-layer compound or a metallization-layer compound, the compound comprising an etch-selectivity toward an etching medium which is different to that of the one or more metallization layers outside the area, and removing the one or more metallization layers in the area or outside the area, depending on the etching selectivity in the area or outside the area, by etching with the etching medium to form the device.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: December 8, 2015
    Assignee: Infineon Technologies AG
    Inventors: Roland Rupp, Stefan Woehlert, Thomas Gutt, Michael Treu
  • Publication number: 20150041915
    Abstract: A semiconductor device arrangement includes a first semiconductor device having a load path and a plurality of second semiconductor devices, each having a load path between a first and a second load terminal and a control terminal. The second semiconductor devices have their load paths connected in series and connected in series to the load path of the first semiconductor device. Each of the second semiconductor devices has its control terminal connected to the load terminal of one of the other second semiconductor devices, and one of the second semiconductor devices has its control terminal connected to one of the load terminals of the first semiconductor device. Each of the second semiconductor devices has at least one device characteristic. At least one device characteristic of at least one of the second semiconductor devices is different from the corresponding device characteristic of others of the second semiconductor devices.
    Type: Application
    Filed: January 30, 2013
    Publication date: February 12, 2015
    Inventors: Rolf Weis, Michael Treu, Gerald Deboy, Armin Willmeroth, Hans Weber
  • Publication number: 20150041831
    Abstract: Production of an integrated circuit including an electrical contact on SiC is disclosed. One embodiment provides for production of an electrical contact on an SiC substrate, in which a conductive contact is produced on a boundary surface of the SiC substrate by irradiation and absorption of a laser pulse on an SiC substrate.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventors: Roland Rupp, Thomas Gutt, Michael Treu
  • Patent number: 8895422
    Abstract: Production of an integrated circuit including an electrical contact on SiC is disclosed. One embodiment provides for production of an electrical contact on an SiC substrate, in which a conductive contact is produced on a boundary surface of the SiC substrate by irradiation and absorption of a laser pulse on an SiC substrate.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 25, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Roland Rupp, Thomas Gutt, Michael Treu
  • Patent number: 8866253
    Abstract: A semiconductor device arrangement includes a first semiconductor device having a load path and a plurality of second semiconductor devices, each having a load path between a first and a second load terminal and a control terminal. The second semiconductor devices have their load paths connected in series and connected in series to the load path of the first semiconductor device. Each of the second semiconductor devices has its control terminal connected to the load terminal of one of the other second semiconductor devices, and one of the second semiconductor devices has its control terminal connected to one of the load terminals of the first semiconductor device. Each of the second semiconductor devices has at least one device characteristic. At least one device characteristic of at least one of the second semiconductor devices is different from the corresponding device characteristic of others of the second semiconductor devices.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: October 21, 2014
    Assignee: Infineon Technologies Dresden GmbH
    Inventors: Rolf Weis, Gerald Deboy, Michael Treu, Armin Willmeroth, Hans Weber
  • Publication number: 20140264577
    Abstract: A transistor device includes at least one first type transistor cell including a drift region, a source region, a body region arranged between the source region and the drift region, a drain region, a gate electrode adjacent the body region and dielectrically insulated from the body region by a gate dielectric, and a field electrode adjacent the drift region and dielectrically insulated from the drift region by a field electrode dielectric. A gate terminal is coupled to the gate electrode, a source terminal is coupled to the source region, and a control terminal is configured to receive a control signal. A variable resistor is connected between the field electrode and the gate terminal or the source terminal. The variable resistor includes a variable resistance configured to be adjusted by the control signal received at the control terminal.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Walter Rieger, Hans Weber, Michael Treu, Gerhard Nöbauer, Martin Pölzl, Martin Vielemeyer, Franz Hirler
  • Patent number: 8803205
    Abstract: A semiconductor device includes a gate terminal, at least one control terminal and first and second load terminals and at least one device cell. The at least one device cell includes a MOSFET device having a load path and a control terminal, the control terminal coupled to the gate terminal and a JFET device having a load path and a control terminal, the load path connected in series with the load path of the MOSFET device between the load terminals. The at least one device cell further includes a first coupling transistor having a load path and a control terminal, the load path coupled between the control terminal of the JFET device and one of the source terminal and the gate terminal, and the control terminal coupled to the at least one control terminal of the transistor device.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 12, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Franz Hirler, Hans Weber, Michael Treu
  • Patent number: 8618644
    Abstract: An electronic device and manufacturing thereof. One embodiment provides a semiconductor chip having a control electrode and a first load electrode on a first surface and a second load electrode on a second surface. A first lead is electrically coupled to the control electrode. A second lead is electrically coupled to the first load electrode. A third lead is electrically coupled to the first load electrode, the third lead being separate from the second lead. A fourth lead is electrically coupled to the second load electrode, the second and third leads being arranged between the first and fourth leads.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: December 31, 2013
    Assignee: Infineon Technologies AG
    Inventors: Ralf Otremba, Marco Seibt, Uwe Kirchner, Wolfgang Peinhopf, Michael Treu, Andreas Schloegl, Mario Veldvoss
  • Publication number: 20130320354
    Abstract: A semiconductor device includes a first semiconductor die including a normally-off transistor and a second semiconductor die including a plurality of transistor cells of a normally-on GaN HEMT. One of a source terminal and a drain terminal of the normally-off transistor is electrically coupled to a gate terminal of the normally-on GaN HEMT, and the other one of the source terminal and the drain terminal of the normally-off transistor is electrically coupled to one of a source terminal and a drain terminal of the normally-on GaN HEMT. The second semiconductor die further includes a gate resistor electrically coupled between the gate terminal of the normally-off transistor and respective gates of the plurality of transistor cells, and a voltage clamping element electrically coupled between the gate terminal and one of the source terminal and the drain terminal of the normally-on GaN HEMT.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 5, 2013
    Inventors: Michael Treu, Ralf Siemieniec
  • Patent number: 8530904
    Abstract: A semiconductor device is disclosed. One embodiment includes a first semiconductor die having a normally-off transistor. In a second semiconductor die a plurality of transistor cells of a normally-on transistor are formed, wherein one of a source terminal/drain terminal of the normally-on transistor is electrically coupled to a gate terminal of the normally-on transistor and the other one the source terminal/drain terminal of the normally-off transistor is electrically coupled to one of a source terminal/drain terminal of the normally-on transistor. The second semiconductor die includes a gate resistor electrically coupled between the gate terminal of the normally-off transistor and respective gates of the plurality of transistor cells. A voltage clamping element is electrically coupled between the gate terminal and the one of the source terminal/drain terminal of the normally-on transistor.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: September 10, 2013
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Treu, Ralf Siemieniec
  • Patent number: 8525254
    Abstract: A semiconductor device as described herein includes a silicon carbide semiconductor body. A trench extends into the silicon carbide semiconductor body at a first surface. A gate dielectric and a gate electrode are formed within the trench. A body zone of a first conductivity type adjoins to a sidewall of the trench, the body zone being electrically coupled to a contact via a body contact zone including a higher maximum concentration of dopants than the body zone. An extension zone of the first conductivity type is electrically coupled to the contact via the body zone, wherein a maximum concentration of dopants of the extension zone along a vertical direction perpendicular to the first surface is higher than the maximum concentration of dopants of the body zone along the vertical direction. A distance between the first surface and a bottom side of the extension zone is larger than the distance between the first surface and the bottom side of the trench.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: September 3, 2013
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Treu, Ralf Siemieniec
  • Publication number: 20130193525
    Abstract: A semiconductor device arrangement includes a first semiconductor device having a load path and a plurality of second semiconductor devices, each having a load path between a first and a second load terminal and a control terminal. The second semiconductor devices have their load paths connected in series and connected in series to the load path of the first semiconductor device. Each of the second semiconductor devices has its control terminal connected to the load terminal of one of the other second semiconductor devices, and one of the second semiconductor devices has its control terminal connected to one of the load terminals of the first semiconductor device. Each of the second semiconductor devices has at least one device characteristic. At least one device characteristic of at least one of the second semiconductor devices is different from the corresponding device characteristic of others of the second semiconductor devices.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Rolf Weis, Gerald Deboy, Michael Treu, Armin Willmeroth, Hans Weber
  • Patent number: 8492771
    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: Grant
    Filed: September 27, 2007
    Date of Patent: July 23, 2013
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Rüb, Michael Treu, Armin Willmeroth, Franz Hirler
  • Patent number: 8450196
    Abstract: Production of an integrated circuit including an electrical contact on SiC is disclosed. One embodiment provides for production of an electrical contact on an SiC substrate, in which a conductive contact is produced on a boundary surface of the SiC substrate by irradiation and absorption of a laser pulse on an SiC substrate.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: May 28, 2013
    Assignee: Infineon Technologies Austria AG
    Inventors: Roland Rupp, Thomas Gutt, Michael Treu
  • Patent number: 8421147
    Abstract: A MOS transistor having an increased gate-drain capacitance is described. One embodiment provides a drift zone of a first conduction type. At least one transistor cell has a body zone, a source zone separated from the drift zone by the body zone, and a gate electrode, which is arranged adjacent to the body zone and which is dielectrically insulated from the body zone by a gate dielectric. At least one compensation zone of the first conduction type is arranged in the drift zone. At least one feedback electrode is arranged at a distance from the body zone, which is dielectrically insulated from the drift zone by a feedback dielectric and which is electrically conductively connected to the gate electrode.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 16, 2013
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Michael Treu
  • Publication number: 20120319109
    Abstract: An electronic device and manufacturing thereof. One embodiment provides a semiconductor chip having a control electrode and a first load electrode on a first surface and a second load electrode on a second surface. A first lead is electrically coupled to the control electrode. A second lead is electrically coupled to the first load electrode. A third lead is electrically coupled to the first load electrode, the third lead being separate from the second lead. A fourth lead is electrically coupled to the second load electrode, the second and third leads being arranged between the first and fourth leads.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Ralf Otremba, Marco Seibt, Uwe Kirchner, Wolfgang Peinhopf, Michael Treu, Andreas Schloegl, Mario Feldvoss
  • Publication number: 20120305993
    Abstract: A semiconductor device includes a gate terminal, at least one control terminal and first and second load terminals and at least one device cell. The at least one device cell includes a MOSFET device having a load path and a control terminal, the control terminal coupled to the gate terminal and a JFET device having a load path and a control terminal, the load path connected in series with the load path of the MOSFET device between the load terminals. The at least one device cell further includes a first coupling transistor having a load path and a control terminal, the load path coupled between the control terminal of the JFET device and one of the source terminal and the gate terminal, and the control terminal coupled to the at least one control terminal of the transistor device.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Armin Willmeroth, Franz Hirler, Hans Weber, Michael Treu