Patents by Inventor Gernot Langguth

Gernot Langguth 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: 8335064
    Abstract: Embodiments of this disclosure relate to electrostatic discharge (ESD) protection techniques. For example, some embodiments include a variable resistor that selectively shunts power of an incoming ESD pulse from a first circuit node to a second circuit node and away from a semiconductor device. A control voltage provided to the variable resistor causes the transistor to change between a fully-off mode where only sub-threshold current, if any, flows; a fully-on mode wherein a maximum amount of current flows; and an analog mode wherein an intermediate and time-varying amount of current flows. In particular, the analog mode allows the ESD protection device to shunt power more precisely than previously achievable, such that the ESD protection device can protect semiconductor devices from ESD pulses.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: December 18, 2012
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Soldner, Gernot Langguth, Christian Russ, Harald Gossner
  • Patent number: 8315024
    Abstract: Implementations are presented herein that include an electrostatic discharge (ESD) protection circuit. The ESD protection circuit includes a first transistor and a second transistor. The first transistor has a first terminal that is coupled to a first supply line and a bulk that is coupled to a second supply line. The second transistor has a first terminal that is coupled to the second supply line, a bulk that is coupled to the first supply line and a second terminal that is coupled to a second terminal of the first transistor to define a protected node. The ESD protection circuit further includes a current limiting element that has a first terminal that is coupled to the protected node.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: November 20, 2012
    Assignee: Infineon Technologies AG
    Inventors: Christian Russ, Wolfgang Soldner, Gernot Langguth, David Alvarez, Krysztof Domanski
  • Publication number: 20120154961
    Abstract: Techniques and architectures corresponding to electrostatic discharge blocking circuits are described.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Applicant: Infineon Technologies AG
    Inventors: Christian Russ, Wolfgang Soldner, Gernot Langguth, David Alvarez, Krzysztof Domanski, Klaus von Arnim
  • Publication number: 20120154962
    Abstract: Techniques and architectures corresponding to electrostatic discharge clamping circuits with tracing circuitry are described.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Applicant: Infineon Technologies AG
    Inventors: Christian Russ, Wolfgang Soldner, Klaus von Arnim, David Alvarez, Krzysztof Domanski, Gernot Langguth
  • Patent number: 8198651
    Abstract: A semiconductor device for protecting against an electro static discharge is disclosed. In one embodiment, the semiconductor device includes a first low doped region disposed in a substrate, a first heavily doped region disposed within the first low doped region, the first heavily doped region comprising a first conductivity type, and the first low doped region comprising a second conductivity type, the first and the second conductivity types being opposite, the first heavily doped region being coupled to a node to be protected. The semiconductor device further includes a second heavily doped region coupled to a first power supply potential node, the second heavily doped region being separated from the first heavily doped region by a portion of the first low doped region, and a second low doped region disposed adjacent the first low doped region, the second low doped region comprising the first conductivity type.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: June 12, 2012
    Assignee: Infineon Technologies AG
    Inventors: Gernot Langguth, Wolfgang Soldner, Cornelius Christian Russ
  • Patent number: 8154049
    Abstract: An ESD protection apparatus includes a substrate, a transistor structure arranged in the substrate, and a diode structure arranged in the substrate, a high-resistance electrical connection being provided between the transistor structure and the diode structure in the substrate.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: April 10, 2012
    Assignee: Infineon Technologies AG
    Inventors: Sven Albers, Klaus Diefenbeck, Bernd Eisener, Gernot Langguth, Christian Lehrer, Karl-Heinz Malek, Eberhard Rohrer
  • Publication number: 20120002333
    Abstract: Embodiments of this disclosure relate to electrostatic discharge (ESD) protection techniques. For example, some embodiments include a variable resistor that selectively shunts power of an incoming ESD pulse from a first circuit node to a second circuit node and away from a semiconductor device. A control voltage provided to the variable resistor causes the transistor to change between a fully-off mode where only sub-threshold current, if any, flows; a fully-on mode wherein a maximum amount of current flows; and an analog mode wherein an intermediate and time-varying amount of current flows. In particular, the analog mode allows the ESD protection device to shunt power more precisely than previously achievable, such that the ESD protection device can protect semiconductor devices from ESD pulses.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: Infineon Technologies AG
    Inventors: Wolfgang Soldner, Gernot Langguth, Christian Russ, Harald Gossner
  • Patent number: 8058111
    Abstract: An integrated circuit arrangement includes a pin photodiode and a highly doped connection region of a bipolar transistor. A production method produces an intermediate region of the pin diode with a large depth and without auto-doping in a central region.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: November 15, 2011
    Assignee: Infineon Technologies AG
    Inventors: Gernot Langguth, Karlheinz Mueller, Holger Wille
  • Patent number: 7943928
    Abstract: An ESD protection structure includes a structure to be protected disposed in a semiconductor body. A region of a first conductivity type is disposed within the semiconductor body and a channel is disposed in the semiconductor body and extends through the region of the first conductivity type. A semiconductor of a second conductivity type is disposed within the channel adjacent the region of the first conductivity type such that the region of the first conductivity type and the semiconductor of the second conductivity type form a diode. At least one of the region of the first conductivity type and the semiconductor of the second conductivity type is electrically coupled to the structure to be protected.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: May 17, 2011
    Assignee: Infineon Technologies AG
    Inventors: Michael Runde, Gernot Langguth, Klaus Roeschlau, Karlheinz Mueller
  • Publication number: 20110063763
    Abstract: Implementations are presented herein that include an electrostatic discharge (ESD) protection circuit. The ESD protection circuit includes a first transistor and a second transistor. The first transistor has a first terminal that is coupled to a first supply line and a bulk that is coupled to a second supply line. The second transistor has a first terminal that is coupled to the second supply line, a bulk that is coupled to the first supply line and a second terminal that is coupled to a second terminal of the first transistor to define a protected node. The ESD protection circuit further includes a current limiting element that has a first terminal that is coupled to the protected node.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 17, 2011
    Inventors: David ALVAREZ, Krzysztof DOMANSKI, Gernot LANGGUTH, Christian RUSS, Wolfgang SOLDNER
  • Patent number: 7888703
    Abstract: An ESD protection apparatus includes a substrate, a transistor structure arranged in the substrate, and a diode structure arranged in the substrate, a high-resistance electrical connection being provided between the transistor structure and the diode structure in the substrate.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: February 15, 2011
    Assignee: Infineon Technologies AG
    Inventors: Sven Albers, Klaus Diefenbeck, Bernd Eisener, Gernot Langguth, Christian Lehrer, Karl-Heinz Malek, Eberhard Rohrer
  • Publication number: 20100295094
    Abstract: An ESD protection apparatus includes a substrate, a transistor structure arranged in the substrate, and a diode structure arranged in the substrate, a high-resistance electrical connection being provided between the transistor structure and the diode structure in the substrate.
    Type: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Inventors: Sven Albers, Klaus Diefenbeck, Bernd Eisener, Gernot Langguth, Christian Lehrer, Karl-Heinz Malek, Eberhard Rohrer
  • Patent number: 7736927
    Abstract: A photodetector is formed in a semiconductor body. A hard mask grating is photolithographically formed on a surface of the semiconductor body. The semiconductor body is etched using the hard mask grating as a mask. The etching is performed down to a predetermined depth. An implantation is performed such that an anode or cathode of the photodetector that has been interrupted during the etching is re-formed.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: June 15, 2010
    Assignee: Infineon Technologies AG
    Inventors: Holger Wille, Gernot Langguth, Karl-Heinz Mueller
  • Publication number: 20100090283
    Abstract: A semiconductor device for protecting against an electro static discharge is disclosed. In one embodiment, the semiconductor device includes a first low doped region disposed in a substrate, a first heavily doped region disposed within the first low doped region, the first heavily doped region comprising a first conductivity type, and the first low doped region comprising a second conductivity type, the first and the second conductivity types being opposite, the first heavily doped region being coupled to a node to be protected. The semiconductor device further includes a second heavily doped region coupled to a first power supply potential node, the second heavily doped region being separated from the first heavily doped region by a portion of the first low doped region, and a second low doped region disposed adjacent the first low doped region, the second low doped region comprising the first conductivity type.
    Type: Application
    Filed: October 13, 2008
    Publication date: April 15, 2010
    Applicant: Infineon Technologies AG
    Inventors: Gernot Langguth, Wolfgang Soldner, Cornelius Christian Russ
  • Publication number: 20090209057
    Abstract: An integrated circuit arrangement includes a pin photodiode and a highly doped connection region of a bipolar transistor. A production method produces an intermediate region of the pin diode with a large depth and without auto-doping in a central region.
    Type: Application
    Filed: January 9, 2009
    Publication date: August 20, 2009
    Inventors: Gernot Langguth, Karlheinz Mueller, Holger Wille
  • Patent number: 7495306
    Abstract: An integrated circuit arrangement includes a pin photodiode and a highly doped connection region of a bipolar transistor. A production method produces an intermediate region of the pin diode with a large depth and without auto-doping in a central region.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 24, 2009
    Assignee: Infineon Technologies AG
    Inventors: Gernot Langguth, Karlheinz Mueller, Holger Wille
  • Publication number: 20080192395
    Abstract: An ESD protection apparatus includes a substrate, a transistor structure arranged in the substrate, and a diode structure arranged in the substrate, a high-resistance electrical connection being provided between the transistor structure and the diode structure in the substrate.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 14, 2008
    Inventors: Sven Albers, Klaus Diefenbeck, Bernd Eisener, Gernot Langguth, Christian Lehrer, Karl-Heinz Malek, Eberhard Rohrer
  • Publication number: 20080035924
    Abstract: An ESD protection structure includes a structure to be protected disposed in a semiconductor body. A region of a first conductivity type is disposed within the semiconductor body and a channel is disposed in the semiconductor body and extends through the region of the first conductivity type. A semiconductor of a second conductivity type is disposed within the channel adjacent the region of the first conductivity type such that the region of the first conductivity type and the semiconductor of the second conductivity type form a diode. At least one of the region of the first conductivity type and the semiconductor of the second conductivity type is electrically coupled to the structure to be protected.
    Type: Application
    Filed: November 21, 2006
    Publication date: February 14, 2008
    Inventors: Michael Runde, Gernot Langguth, Klaus Roeschlau, Karlheinz Mueller
  • Publication number: 20070187795
    Abstract: An integrated circuit arrangement (10) containing a pin photodiode (14) and a highly doped connection region (62) of a bipolar transistor (58) is explained, inter alia. Skillful control of the method produces an intermediate region (30) of the pin diode (14) with a large depth and without autodoping in a central region.
    Type: Application
    Filed: December 28, 2006
    Publication date: August 16, 2007
    Inventors: Gernot Langguth, Karlheinz Mueller, Holger Wille
  • Publication number: 20060251995
    Abstract: A photodetector is formed in a semiconductor body. A hard mask grating is photolithographically formed on a surface of the semiconductor body. The semiconductor body is etched using the hard mask grating as a mask. The etching is performed down to a predetermined depth. An implantation is performed such that an anode or cathode of the photodector that has been interrupted during the etching is re-formed.
    Type: Application
    Filed: April 21, 2006
    Publication date: November 9, 2006
    Inventors: Holger Wille, Gernot Langguth, Karl-Heinz Mueller