Patents by Inventor Stephane Chesnais

Stephane Chesnais 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: 10361164
    Abstract: An integrated circuit includes a number of components disposed at a surface of a semiconductor body and an interconnect region connecting the components into a functional circuit. A metallic shield is also produced in the interconnect region. A configurable stage is configurable to operate in a receiving antenna configuration or in a detection configuration during which the integrated circuit is configured to detect a presence of an external electromagnetic radiation representative of an attack by injection of faults.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: July 23, 2019
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Thomas Ordas, Alexandre Sarafianos, Fabrice Marinet, Stephane Chesnais
  • Patent number: 10148421
    Abstract: A device is provided for jamming electromagnetic radiation liable to be emitted by at least one portion of an interconnect region located above at least one zone of an integrated electronic circuit produced in and on a semiconductor substrate. The device includes an antenna located above the at least one zone of the circuit and generating circuit coupled to the antenna and configured to generate an electrical signal having at least one pseudo-random property to pass through the antenna.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 4, 2018
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Thomas Ordas, Alexandre Sarafianos, Stephane Chesnais, Fabrice Marinet
  • Publication number: 20180005964
    Abstract: An integrated circuit includes a number of components disposed at a surface of a semiconductor body and an interconnect region connecting the components into a functional circuit. A metallic shield is also produced in the interconnect region.
    Type: Application
    Filed: March 1, 2017
    Publication date: January 4, 2018
    Inventors: Thomas Ordas, Alexandre Sarafianos, Fabrice Marinet, Stephane Chesnais
  • Publication number: 20170250795
    Abstract: A device is provided for jamming electromagnetic radiation liable to be emitted by at least one portion of an interconnect region located above at least one zone of an integrated electronic circuit produced in and on a semiconductor substrate. The device includes an antenna located above the at least one zone of the circuit and generating circuit coupled to the antenna and configured to generate an electrical signal having at least one pseudo-random property to pass through the antenna.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 31, 2017
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Thomas Ordas, Alexandre Sarafianos, Stephane Chesnais, Fabrice Marinet
  • Patent number: 8359478
    Abstract: A method and a system for protecting a static digital datum contained in a first element of an electronic circuit, intended to be exploited by a second element of this circuit, in which: on the side of the first element, the static datum is converted into a dynamic data flow by at least one first linear shift feedback register representing a different polynomial according to the value of the static datum; the dynamic flow is transmitted to the second element; and on the side of the second element, the received dynamic flow is decoded by at least one second shift register representing at least one of the polynomials that has been used by the first element.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: January 22, 2013
    Assignee: STMicroelectronics S.A.
    Inventors: Loïc Bonizec, Stéphane Chesnais
  • Publication number: 20080163371
    Abstract: A method and a system for protecting a static digital datum contained in a first element of an electronic circuit, intended to be exploited by a second element of this circuit, in which: on the side of the first element, the static datum is converted into a dynamic data flow by at least one first linear shift feedback register representing a different polynomial according to the value of the static datum; the dynamic flow is transmitted to the second element; and on the side of the second element, the received dynamic flow is decoded by at least one second shift register representing at least one of the polynomials that has been used by the first element.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 3, 2008
    Applicant: STMicroelectronics S.A.
    Inventors: Loic Bonizec, Stephane Chesnais
  • Patent number: 5877639
    Abstract: A duration and frequency programmable electronic integrated pulse generator comprises an initialization circuit driven by a reference clock signal and an initialization/comparison signal and producing m initialization values, and a periodic count value coded on n bits. An address decoder module produces write-control bits, while a bits comparison matrix including n.times.m comparison cells each including a RAM and CAM memory cell write-addressable by the write-control bits. Each CAM cell stores a bit CAM.sub.ij of an initialization value and produces a complemented value CAM.sub.ij .sym.BL.sub.i , each RAM memory cell of address i, j produces a masking value M.sub.ij, and each comparison cell produces a value HIT.sub.ij =(CAM.sub.ij .sym.BL.sub.i)+M.sub.ij. All the cells of the same line of rank j are coupled by an OR function and produce, each output S.sub.j, a programmed pulse represented by the equation: ##EQU1## according to a harmonic periodic signal of the periodic count value.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: March 2, 1999
    Assignee: MHS
    Inventors: Michel Porcher, Stephane Chesnais, Jean Desuche