Patents by Inventor Stefaan Verleye

Stefaan Verleye 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).

  • Stacked clamps electrostatic discharge protection device
    Patent number: 11211791
    Abstract: An electrostatic discharge (ESD) protection device including a stack of ESD clamps, a trigger circuit, and a transistor. The trigger circuit may respond to an ESD event by conducting current, which may cause the transistor to turn on. A combination of the trigger circuit conducting current and the transistor turning on may trigger the ESD clamps into a conducting state to shunt current from a first node to a second node.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: December 28, 2021
    Assignee: SOFICS BVBA
    Inventors: Sven Van Wijmeersch, Stefaan Verleye, Benjamin Ernest Henri Virginie Van Camp
  • STACKED CLAMPS ELECTROSTATIC DISCHARGE PROTECTION DEVICE
    Publication number: 20210044106
    Abstract: An electrostatic discharge (ESD) protection device including a stack of ESD clamps, a trigger circuit, and a transistor. The trigger circuit may respond to an ESD event by conducting current, which may cause the transistor to turn on. A combination of the trigger circuit conducting current and the transistor turning on may trigger the ESD clamps into a conducting state to shunt current from a first node to a second node.
    Type: Application
    Filed: August 5, 2020
    Publication date: February 11, 2021
    Applicant: Sofics BV
    Inventors: Sven Van Wijmeersch, Stefaan Verleye, Benjamin Ernest Henri Virginie Van Camp
  • Diode chain with guard-band
    Patent number: 8537514
    Abstract: The present invention provides an ESD protection device having at least one diode in a well of first conductivity type formed in a substrate of second conductivity type. The circuit further includes a guard-band of the first conductivity surrounding at least a portion of the diode, thus forming an NPN transistor between the diode cathode, the substrate and the guard-band.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: September 17, 2013
    Assignee: Sofics BVBA
    Inventors: Benjamin Van Camp, Geert Wybo, Stefaan Verleye
  • DIODE CHAIN WITH GUARD-BAND
    Publication number: 20120200964
    Abstract: The present invention provides an ESD protection device having at least one diode in a well of first conductivity type formed in a substrate of second conductivity type. The circuit further includes a guard-band of the first conductivity surrounding at least a portion of the diode, thus forming an NPN transistor between the diode cathode, the substrate and the guard-band.
    Type: Application
    Filed: February 8, 2012
    Publication date: August 9, 2012
    Applicant: SOFICS BVBA
    Inventors: Benjamin Van Camp, Geert Wybo, Stefaan Verleye
  • Diode chain with a guard-band
    Patent number: 8164869
    Abstract: The present invention provides an ESD protection device having at least one diode in a well of a first conductivity type formed in a substrate of a second conductivity type. The circuit further includes a guard-band of the first conductivity surrounding at least a portion of the diode, thus forming an NPN transistor between the diode cathode, the substrate and the guard-band.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: April 24, 2012
    Assignee: Sofics BVBA
    Inventors: Benjamin Van Camp, Geert Wybo, Stefaan Verleye
  • Localized trigger ESD protection device
    Patent number: 7973334
    Abstract: The present invention provides an ESD device to reduce the total triggering current without increasing the overshoot voltage. This is achieved by localizing the triggering current, such that the local current density remains high enough to trigger the ESD device. This localized triggering provides a fast and efficient triggering of the ESD device.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: July 5, 2011
    Assignee: Sofics BVBA
    Inventors: Stefaan Verleye, Geert Wybo, Benjamin Van Camp
  • LOCALIZED TRIGGER ESD PROTECTION DEVICE
    Publication number: 20090045436
    Abstract: The present invention provides an ESD device to reduce the total triggering current without increasing the overshoot voltage. This is achieved by localizing the triggering current, such that the local current density remains high enough to trigger the ESD device. This localized triggering provides a fast and efficient triggering of the ESD device.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 19, 2009
    Inventors: Stefaan Verleye, Geert Wybo, Benjamin Van Camp
  • Diode Chain with a Guard-Band
    Publication number: 20090040670
    Abstract: The present invention provides an ESD protection device having at least one diode in a well of first conductivity type formed in a substrate of second conductivity type. The circuit further includes a guard band of the first conductivity surrounding at least a portion of the diode, thus forming an NPN transistor between diode cathode, the substrate and the guard-band.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 12, 2009
    Inventors: Benjamin Van Camp, Geert Wybo, Stefaan Verleye