Patents by Inventor Kai Esmark

Kai Esmark 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: 20230369849
    Abstract: The described techniques address issues associated with electrostatic discharge (ESD) protection for multi-die integrated circuits (ICs). The techniques include the use of two or more semiconductor dies within a multi-die IC, which may include a first semiconductor die without ESD protection but with full ESD exposure. The first semiconductor receives ESD protection via a second semiconductor die that is integrated as part of the same package with the first semiconductor die. The second semiconductor die may be electrically more remote from ESD-exposed pins compared to the first semiconductor die. The first semiconductor die may include integrated passive devices. The second semiconductor die enables ESD protection for both semiconductor dies in the same integrated IC package.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 16, 2023
    Inventors: Christian Cornelius Russ, Kai Esmark
  • Patent number: 11121126
    Abstract: An embodiment of a silicon controlled rectifier (SCR) includes a semiconductor body, an active device region, and a device isolation region configured to electrically insulate the active device region from neighboring active device regions. First SCR regions and a second SCR region of a first conductivity type are in the active device region. A first pn-junction or Schottky junction is formed at an interface between the first SCR regions and the second SCR region. A first plurality of the first SCR regions and sub-regions of the second SCR region are alternately arranged and directly adjoin one another. A second pn-junction is formed at an interface between the second SCR region and a third SCR region of a second conductivity type. A third pn-junction is formed at an interface between the third SCR region and a fourth SCR region of the first conductivity type.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: September 14, 2021
    Assignee: Infineon Technologies AG
    Inventors: Christian Cornelius Russ, Markus Eckinger, Kai Esmark
  • 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: 20200243507
    Abstract: An embodiment of a silicon controlled rectifier (SCR) includes a semiconductor body, an active device region, and a device isolation region configured to electrically insulate the active device region from neighboring active device regions. First SCR regions and a second SCR region of a first conductivity type are in the active device region. A first pn-junction or Schottky junction is formed at an interface between the first SCR regions and the second SCR region. A first plurality of the first SCR regions and sub-regions of the second SCR region are alternately arranged and directly adjoin one another. A second pn-junction is formed at an interface between the second SCR region and a third SCR region of a second conductivity type. A third pn-junction is formed at an interface between the third SCR region and a fourth SCR region of the first conductivity type.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 30, 2020
    Inventors: Christian Cornelius Russ, Markus Eckinger, Kai Esmark
  • Patent number: 9899367
    Abstract: An embodiment of an integrated circuit includes a minimum lateral dimension of a semiconductor well at a first surface of a semiconductor body. The integrated circuit further includes a first lateral DMOSFET having a load path electrically coupled to a load pin. The first lateral DMOSFET is configured to control a load current through a load element electrically coupled to the load pin. A minimum lateral dimension of a drain region of the first lateral DMOSFET at the first surface of the semiconductor body is more than 50% greater than the minimum lateral dimension.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: February 20, 2018
    Assignee: Infineon Technologies AG
    Inventors: Kai Esmark, Yiqun Cao, Donald Dibra
  • 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: 20160336308
    Abstract: An embodiment of an integrated circuit includes a minimum lateral dimension of a semiconductor well at a first surface of a semiconductor body. The integrated circuit further includes a first lateral DMOSFET having a load path electrically coupled to a load pin. The first lateral DMOSFET is configured to control a load current through a load element electrically coupled to the load pin. A minimum lateral dimension of a drain region of the first lateral DMOSFET at the first surface of the semiconductor body is more than 50% greater than the minimum lateral dimension.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Inventors: Kai Esmark, Yiqun Cao, Donald Dibra
  • Publication number: 20160172849
    Abstract: Representative implementations of devices and techniques provide detection of an electrical stress event for an electrical component or system. A detection component may be located near the electrical component or system and be arranged to determine the existence of the electrical stress event. In some implementations, the detection component is arranged to record, count, and/or differentiate the type of the electrical stress event.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Donald DIBRA, Kai ESMARK
  • 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: 9263430
    Abstract: A semiconductor device includes an SCR ESD device region disposed within a semiconductor body, and a plurality of first device regions of the first conductivity type disposed on a second device region of the second conductivity type, where the second conductivity type is opposite the first conductivity type. Also included is a plurality of third device regions having a sub-region of the first conductivity type and a sub-region of the second conductivity type disposed on the second device region. The first regions and second regions are distributed such that the third regions are not directly adjacent to each other. A fourth device region of the first conductivity type adjacent to the second device region and a fifth device region of the second conductivity type disposed within the fourth device region are also included.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: February 16, 2016
    Assignee: Infineon Technologies AG
    Inventors: Krzysztof Domanski, Cornelius Christian Russ, Kai Esmark
  • 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: 20150144996
    Abstract: A semiconductor device includes an SCR ESD device region disposed within a semiconductor body, and a plurality of first device regions of the first conductivity type disposed on a second device region of the second conductivity type, where the second conductivity type is opposite the first conductivity type. Also included is a plurality of third device regions having a sub-region of the first conductivity type and a sub-region of the second conductivity type disposed on the second device region. The first regions and second regions are distributed such that the third regions are not directly adjacent to each other. A fourth device region of the first conductivity type adjacent to the second device region and a fifth device region of the second conductivity type disposed within the fourth device region are also included.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 28, 2015
    Inventors: Krzysztof Domanski, Cornelius Christian Russ, Kai Esmark
  • Patent number: 8956924
    Abstract: A semiconductor device includes an SCR ESD device region disposed within a semiconductor body, and a plurality of first device regions of the first conductivity type disposed on a second device region of the second conductivity type, where the second conductivity type is opposite the first conductivity type. Also included is a plurality of third device regions having a sub-region of the first conductivity type and a sub-region of the second conductivity type disposed on the second device region. The first regions and second regions are distributed such that the third regions are not directly adjacent to each other. A fourth device region of the first conductivity type adjacent to the second device region and a fifth device region of the second conductivity type disposed within the fourth device region are also included.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: February 17, 2015
    Assignee: Infineon Technologies AG
    Inventors: Krzysztof Domanski, Cornelius C. Russ, Kai Esmark
  • 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: 8623731
    Abstract: Electrostatic discharge devices and methods of forming thereof are disclosed. In one embodiment, a semiconductor device includes an electrostatic discharge (ESD) device region disposed within a semiconductor body. A first ESD device is disposed in a first region of the ESD device region, and a second ESD device disposed in a second region of the ESD device region. The second region is separated from the first region by a first trench.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: January 7, 2014
    Assignee: Infineon Technologies AG
    Inventor: Kai Esmark
  • Publication number: 20130277712
    Abstract: A semiconductor device includes an SCR ESD device region disposed within a semiconductor body, and a plurality of first device regions of the first conductivity type disposed on a second device region of the second conductivity type, where the second conductivity type is opposite the first conductivity type. Also included is a plurality of third device regions having a sub-region of the first conductivity type and a sub-region of the second conductivity type disposed on the second device region. The first regions and second regions are distributed such that the third regions are not directly adjacent to each other. A fourth device region of the first conductivity type adjacent to the second device region and a fifth device region of the second conductivity type disposed within the fourth device region are also included.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 24, 2013
    Inventors: Krzysztof Domanski, Cornelius C. Russ, Kai Esmark
  • Patent number: 8471292
    Abstract: A semiconductor device includes an SCR ESD device region disposed within a semiconductor body, and a plurality of first device regions of the first conductivity type disposed on a second device region of the second conductivity type, where the second conductivity type is opposite the first conductivity type. Also included is a plurality of third device regions having a sub-region of the first conductivity type and a sub-region of the second conductivity type disposed on the second device region. The first regions and second regions are distributed such that the third regions are not directly adjacent to each other. A fourth device region of the first conductivity type adjacent to the second device region and a fifth device region of the second conductivity type disposed within the fourth device region are also included.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: June 25, 2013
    Assignee: Infineon Technologies AG
    Inventors: Krzysztof Domanski, Cornelius Christian Russ, Kai Esmark
  • Publication number: 20130122677
    Abstract: Electrostatic discharge devices and methods of forming thereof are disclosed. In one embodiment, a semiconductor device includes an electrostatic discharge (ESD) device region disposed within a semiconductor body. A first ESD device is disposed in a first region of the ESD device region, and a second ESD device disposed in a second region of the ESD device region. The second region is separated from the first region by a first trench.
    Type: Application
    Filed: December 31, 2012
    Publication date: May 16, 2013
    Applicant: Infineon Technologies AG
    Inventor: Kai Esmark