Patents by Inventor Stéphanie Dournelle

Stéphanie Dournelle 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).

  • Protection of an integrated circuit against electrostatic discharges
    Patent number: 7336460
    Abstract: A circuit of protection against electrostatic discharges, comprising a first MOS transistor for detecting a leakage current between a first input node of a circuit to be protected and a second node at an output voltage, a second MOS transistor constitute of a switch directly connecting said nodes, and a leakage current amplifier in the first transistor to control the second one.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: February 26, 2008
    Assignee: STMicroelectronics SA
    Inventors: Stéphanie Dournelle, Pascal Salome
  • Electrostatic discharge protection device comprising several thyristors
    Patent number: 7113377
    Abstract: An electrostatic discharge protection device comprises several thyristors which are connected in parallel between two nodes of an electrical circuit. It also includes a control circuit having an output connected to the control trigger terminal input of each of the thyristors. In response to an abnormal variation in a voltage between the two nodes being detected, the control circuit initiates a triggering current on the output so as to trigger the thyristors to conduct current between the two nodes. Preferably, the thyristors are arranged in a semiconductor substrate so as to have low hold voltages and small geometrical dimensions.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: September 26, 2006
    Assignees: Stmicrelectronics S.A., Centre National de la Recherche Scientifique
    Inventors: Pascal Salome, Stéphanie Dournelle, Florence Azais, Benjamin Caillard, Pascal Nouet
  • Protection of an integrated circuit against electrostatic discharges
    Publication number: 20050275031
    Abstract: A circuit of protection against electrostatic discharges, comprising a first MOS transistor for detecting a leakage current between a first input node of a circuit to be protected and a second node at an output voltage, a second MOS transistor constitutive of a switch directly connecting said nodes, and a leakage current amplifier in the first transistor to control the second one.
    Type: Application
    Filed: May 26, 2005
    Publication date: December 15, 2005
    Inventors: Stephanie Dournelle, Pascal Salome
  • Electrostatic discharge protection device comprising several thyristors
    Publication number: 20040021998
    Abstract: An electrostatic discharge protection device comprises several thyristors which are connected in parallel between two nodes of an electrical circuit. It also includes a control circuit having an output connected to the control trigger terminal input of each of the thyristors. In response to an abnormal variation in a voltage between the two nodes being detected, the control circuit initiates a triggering current on the output so as to trigger the thyristors to conduct current between the two nodes. Preferably, the thyristors are arranged in a semiconductor substrate so as to have low hold voltages and small geometrical dimensions.
    Type: Application
    Filed: April 17, 2003
    Publication date: February 5, 2004
    Inventors: Pascal Salome, Stephanie Dournelle, Florence Azais, Benjamin Caillard, Pascal Nouet