Patents by Inventor Martin Wendel

Martin Wendel 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: 10756081
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 25, 2020
    Assignee: Infineon Technologies AG
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Publication number: 20180033783
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Patent number: 9812438
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 7, 2017
    Assignee: Infineon Technologies AG
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Publication number: 20160111413
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Application
    Filed: December 22, 2015
    Publication date: April 21, 2016
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Patent number: 9257523
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: February 9, 2016
    Assignee: Infineon Technologies AG
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Publication number: 20140291808
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Patent number: 8791547
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: July 29, 2014
    Assignee: Infineon Technologies AG
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Patent number: 8710590
    Abstract: In a method for producing an electronic component, a substrate is doped by introducing doping atoms. In the doped substrate, at least one connection region of the electronic component is formed by doping with doping atoms. Furthermore, at least one additional doped region is formed at least below the at least one connection region by doping with doping atoms. Furthermore, at least one well region is formed in the substrate by doping with doping atoms in such a way that the well region doping is blocked at least below the at least one additional doped region.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: April 29, 2014
    Assignee: Infineon Technologies AG
    Inventors: Philipp Riess, Henning Feick, Martin Wendel
  • Patent number: 8043934
    Abstract: A method for protecting a semiconductor circuit from electrostatic discharge is disclosed. An electrostatic discharge is received at a node. Current created by the electrostatic discharge is directed vertically into a semiconductor body, laterally through the semiconductor and beneath a trench isolation region so that the current flows in a direction parallel to an upper surface of the semiconductor body, and to a reference supply node. The reference supply node being formed in a conductive layer disposed over the upper surface of the semiconductor body.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: October 25, 2011
    Assignee: Infineon Technologies AG
    Inventors: Jens Schneider, Martin Wendel
  • Publication number: 20110038085
    Abstract: A method for protecting a semiconductor circuit from electrostatic discharge is disclosed. An electrostatic discharge is received at a node. Current created by the electrostatic discharge is directed vertically into a semiconductor body, laterally through the semiconductor and beneath a trench isolation region so that the current flows in a direction parallel to an upper surface of the semiconductor body, and to a reference supply node. The reference supply node being formed in a conductive layer disposed over the upper surface of the semiconductor body.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 17, 2011
    Inventors: Jens Schneider, Martin Wendel
  • Patent number: 7875933
    Abstract: A semiconductor device (10) includes a semiconductor body (12) of a first conductivity type (e.g., p-type). A first doped region (14) of a second conductivity type (e.g., n-type) is disposed at an upper surface of the semiconductor body (12). A second doped region (16) of the second conductivity type is disposed at the upper surface of the semiconductor body (12) and is separated from the first doped region (14) by an isolation region (18). A first contact (26) overlies and is electrically coupled to the first doped region (14) and a second contact (28) overlies and is electrically coupled to the second doped region (16). A third doped region (32) of the first conductivity type is disposed within the semiconductor body (12) beneath the first doped region (14).
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: January 25, 2011
    Assignee: Infineon Technologies AG
    Inventors: Jens Schneider, Martin Wendel
  • Patent number: 7709896
    Abstract: An ESD protection device includes a source region, a channel region adjacent the source region, and an elongated drain region spaced from the source region by the channel region. The elongated drain region includes an unsilicided portion adjacent the channel and a silicided portion spaced from channel region by the unsilicided portion. A first ESD region is located beneath the silicided portion of the elongated drain region and a second ESD region is located beneath the unsilicided portion of the elongated drain region, the second ESD region being spaced from the first ESD region.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: May 4, 2010
    Assignee: Infineon Technologies AG
    Inventors: Cornelius Christian Russ, David Alvarez, Kiran V. Chatty, Jens Schneider, Robert Gauthier, Martin Wendel
  • Publication number: 20090185316
    Abstract: The invention relates to an avalanche diode that can be employed as an ESD protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current. The avalanche ignition region is preferably formed wider than the diode depletion zone, and is preferably created by placement, preferably by ion implantation, of an atomic specie different from that of the principal device structure. The doping concentration of the placed atomic specie should be sufficiently high to ensure substantially immediate onset of avalanche current when the diode breakdown voltage is exceeded. The new atomic specie preferably comprises argon or nitrogen, but other atomic species can be employed. However, other means of increasing a defect concentration level in the diode depletion zone, such as an altered annealing program, are also contemplated.
    Type: Application
    Filed: January 21, 2008
    Publication date: July 23, 2009
    Inventors: Jens Schneider, Kai Esmark, Martin Wendel
  • Patent number: 7359169
    Abstract: A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in series between a connection of the integrated circuit and a supply voltage. When electrostatic discharges or electrical over-stress occurs, current flows through the conductive path formed through the first and second protective elements. A current path that contains a circuit element limits current through the first protective element is connected in parallel with the first protective element. The first protective element has blocking behavior when no electrostatic discharges or electrical over-stress occurs, a limited current flows through the current path and the second protective element.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: April 15, 2008
    Assignee: Infineon Technologies AG
    Inventors: Kai Esmark, Harald Gossner, Wolfgang Stadler, Martin Streibl, Martin Wendel
  • Publication number: 20070210387
    Abstract: An ESD protection device includes a source region, a channel region adjacent the source region, and an elongated drain region spaced from the source region by the channel region. The elongated drain region includes an unsilicided portion adjacent the channel and a silicided portion spaced from channel region by the unsilicided portion. A first ESD region is located beneath the silicided portion of the elongated drain region and a second ESD region is located beneath the unsilicided portion of the elongated drain region, the second ESD region being spaced from the first ESD region.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 13, 2007
    Inventors: Cornelius Russ, David Alvarez, Kiran Chatty, Jens Schneider, Robert Gauthier, Martin Wendel
  • Publication number: 20070010077
    Abstract: In a method for producing an electronic component, a substrate is doped by introducing doping atoms. In the doped substrate, at least one connection region of the electronic component is formed by doping with doping atoms. Furthermore, at least one additional doped region is formed at least below the at least one connection region by doping with doping atoms. Furthermore, at least one well region is formed in the substrate by doping with doping atoms in such a way that the well region doping is blocked at least below the at least one additional doped region.
    Type: Application
    Filed: June 16, 2006
    Publication date: January 11, 2007
    Inventors: Philipp Riess, Henning Feick, Martin Wendel
  • Publication number: 20060226488
    Abstract: A semiconductor device (10) includes a semiconductor body (12) of a first conductivity type (e.g., p-type). A first doped region (14) of a second conductivity type (e.g., n-type) is disposed at an upper surface of the semiconductor body (12). A second doped region (16) of the second conductivity type is disposed at the upper surface of the semiconductor body (12) and is separated from the first doped region (14) by an isolation region (18). A first contact (26) overlies and is electrically coupled to the first doped region (14) and a second contact (28) overlies and is electrically coupled to the second doped region (16). A third doped region (32) of the first conductivity type is disposed within the semiconductor body (12) beneath the first doped region (14).
    Type: Application
    Filed: March 29, 2005
    Publication date: October 12, 2006
    Inventors: Jens Schneider, Martin Wendel
  • Patent number: 7087938
    Abstract: An ESD protective circuit protects an input or output of a monolithically integrated circuit. The ESD protective circuit has at least one bipolar transistor structure and one ESD protective element between two supply networks. The emitter of the bipolar transistor structure is electrically connected to the input or output, while the base is electrically connected to one of the two supply networks. The collector produces a current signal, which is used for triggering of the ESD protective element, when an ESD load occurs at the input or output.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: August 8, 2006
    Assignee: Infineon Technologies AG
    Inventors: Martin Streibl, Kai Esmark, Christian Russ, Martin Wendel, Harald Gossner
  • Publication number: 20060056121
    Abstract: A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in series between a connection of the integrated circuit and a supply voltage. When electrostatic discharges or electrical over-stress occurs, current flows through the conductive path formed through the first and second protective elements. A current path that contains a circuit element limits current through the first protective element is connected in parallel with the first protective element. The first protective element has blocking behavior when no electrostatic discharges or electrical over-stress occurs, a limited current flows through the current path and the second protective element.
    Type: Application
    Filed: November 24, 2003
    Publication date: March 16, 2006
    Inventors: Kai Esmark, Harald Gossner, Wolfgang Stadler, Martin Streibl, Martin Wendel
  • Patent number: 7009404
    Abstract: To test the ESD resistance of a semiconductor component, for example of a NOS transistor, which can be used as a PSD protective element in a chip, a direct current characteristic of the semiconductor component is monitored and the ESD resistance of the respective semiconductor component is inferred depending on this. In particular, the direct current failure threshold of the semiconductor component at which an increased leakage current occurs in the non-conducting direction of the semiconductor component can be monitored in operation of the semiconductor component using an applied direct current and the ESD resistance of the semiconductor component inferred depending on a change in this direct current failure threshold.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: March 7, 2006
    Assignee: Infineon Technologies AG
    Inventors: Martin Wendel, Richard Owen, Harald Gossner, Wolfgang Stadler, Philipp Riess, Martin Streibl, Kai Esmark