Patents Assigned to Commissariat à l'énergie atomique et aux energies alternatives
  • Publication number: 20240014542
    Abstract: A passive wireless electronic component (2) including at least one antenna (14), the or each antenna having an associated antenna frequency, and comprising at least one resonant micro-electromechanical component having a resonant frequency and connected to a contact point of said antenna, forming an antenna-resonator assembly suitable for receiving an incident electromagnetic signal (Sl) including at least two frequencies and for transmitting a backscattered electromagnetic signal (Sr). The passive wireless electronic component (2) is such that the or each antenna (14) includes at least two non-linearly actuated resonant micro-electromechanical MEMS components (16, 18), each of said MEMS components having a natural mechanical resonant frequency thereof within a resonant frequency range, the resonant frequency ranges associated with two distinct MEMS components being disjointed.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 11, 2024
    Applicant: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Romain ALCESILAS, Marc SANSA PERNA, Camille JOUVAUD
  • Patent number: 11867632
    Abstract: A device for characterising at least one liquid material includes an analysis head and a rotating mechanical mixer. The mixer includes a central part having an internal cavity which forms an analysis chamber, a first end connected to the analysis head, and a plurality of stirring blades which are connected to a second end that is hollow so as to ensure fluid communication between the internal cavity and the liquid bath. The mechanical stirring blades are intended to be totally submerged, the central part comprises one or more openings intended to be partially submerged, and each mechanical stirring blade comprises at least one stirring flange oriented at a non-zero angle of orientation.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: January 9, 2024
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Younès Belrhiti, Mickaël Albaric, Malek Benmansour, David Pelletier
  • Publication number: 20240003854
    Abstract: This method comprises: a step of reconstructing the acoustic signal produced during the occurrence or the evolution of the defect, this reconstruction step comprising constructing an estimate Se(w) of the signal produced at the position of the defect based on an ultrasonic signal Fj(t) measured by a sensor and using an estimate or a measurement of a product Rj(w)Gj(w) that relates, in the frequency domain, the measured ultrasonic signal Fj(w) to the produced acoustic signal S(w), and a step of automatically classifying the acoustic source, carried out based on the estimate of the reconstructed acoustic signal.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 4, 2024
    Applicant: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventor: Arnaud RECOQUILLAY
  • Publication number: 20240006231
    Abstract: A method for manufacturing a paved structure comprising: a) providing a vignetted structure comprising a rigid frame, vignettes bonded in a spaced manner on the rigid frame provided with an UV-sensitive adhesive film, b) bonding the vignettes to a support substrate through a mineral-based paste so as to form a stack, c) applying a pressure on the stack so that the mineral-based paste fills the space between the vignettes, d) insolating the UV-sensitive adhesive film, e) separating the rigid frame and the vignettes integral with the support substrate, and f) applying a thermal treatment so as to transform the mineral-based paste into a cohesive mineral material to obtain the paved structure.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 4, 2024
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Pierre MONTMEAT, Frank FOURNEL
  • Patent number: 11863890
    Abstract: A pixel circuit comprising: a light-sensing element; a first transistor having its control node coupled to a sense node and its source coupled to a readout path of the pixel circuit; and a reset voltage correction circuit comprising: a first switch configured to selectively couple an input node of the reset voltage correction circuit to a correction node, the input node being connected to the sense node or to the source of the first transistor, the correction node being coupled by a capacitance to the sense node; and a second switch configured to selectively couple the correction node to a reset voltage.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: January 2, 2024
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventor: Gaelle Palmigiani
  • Publication number: 20230417598
    Abstract: A system for determining an estimated degree of polarization of a radiation reflected) by a scene, including a first light source of a first electromagnetic radiation at a first frequency and rectilinearly polarized according to a first direction, a second light source of a second electromagnetic radiation at a second frequency greater than the first frequency and rectilinearly polarized according to a second direction non-parallel to the first direction, and a device of acquisition of an image of the radiation reflected by the scene including first pixels configured to capture the reflected radiation, each first pixel being covered with a rectilinear polarizer according to a third direction non-perpendicular to the first direction.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 28, 2023
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventor: François Deneuville
  • Patent number: 11851365
    Abstract: A method for treating a lead-containing glass that makes it possible to limit the migration of the lead contained in this glass, the method successively comprising the following distinct steps: a step of placing the lead-containing glass in contact with a solution comprising perchloric acid; a step of heat treatment of the glass at a temperature less than or equal to the glass transition temperature of the glass.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: December 26, 2023
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Frédéric Angeli, Patrick Jollivet
  • Publication number: 20230395933
    Abstract: A safety device adapted to an electrochemical cell, the cell having a container in which a coil is placed, the container including at least one first wall provided with at least one rupture initiator, designed to break in the event of a fault so as to expel the gases, and a second wall arranged to ensure the coil is held in said container, the safety device has a holding device arranged to ensure an abutment against said second wall of the cell so as to hold it in position in the event of thermal runaway and to retain the coil on the inside of the container, a gas releasing device, arranged to ensure the expulsion of the gases from the cell, in the event of thermal runaway.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 7, 2023
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Rémi VINCENT, Nicolas FERRIER
  • Patent number: 11834329
    Abstract: The present description concerns a microelectromechanical sensor control method, including the steps of: exciting, with same first signal (FSL), a first resonant (206L) and at least one second resonant element (206R); and estimating a phase shift (??) between the first signal and a second signal (FSR) which is an image of vibrations of the second resonant element.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 5, 2023
    Assignee: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventors: Marc Sansa Perna, Martial Defoort
  • Patent number: 11838016
    Abstract: A circuit, intended to be associated in series with a load to be powered including a first field-effect transistor; at least one second field-effect transistor, associated in parallel with the first transistor; and at least one sensor of information representative of a current transmitted to said load, the gate of the second transistor being coupled to an output of the sensor.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 5, 2023
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: René Escoffier, Julien Buckley
  • Publication number: 20230387070
    Abstract: A method for manufacturing a multilayer structure by direct bonding between a first substrate and a second substrate includes the steps of: a) providing a first substrate and a second substrate respectively including a first bonding surface and a second bonding surface, b) bringing the first bonding surface and the second bonding surface into contact so as to create a direct bonding interface between the first substrate and the second substrate, c) disposing at least the direct bonding interface in a basic environment, and d) applying a thermal treatment at a temperature of between 20° C. and 350° C. so as to obtain the multilayer structure.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 30, 2023
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Frank FOURNEL, Aziliz CALVEZ, Vincent LARREY, Christophe MORALES
  • Publication number: 20230386891
    Abstract: A method for manufacturing a multilayer structure by direct bonding between a first substrate and a second substrate, the method including the steps of: providing a first substrate and a second substrate respectively including a first bonding surface and a second bonding surface, contacting the first bonding surface and the second bonding surface so as to create a direct bonding interface between the first substrate and the second substrate, placing at least the direct bonding interface in a cationic aqueous solution including deionized water and cationic species originating from at least one element of the first and/or of the second column of the periodic table of elements, and applying a heat treatment at a temperature comprised between 20° C. and 350° C. so as to obtain the multilayer structure.
    Type: Application
    Filed: May 12, 2023
    Publication date: November 30, 2023
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Frank FOURNEL, Aziliz CALVEZ, Vincent LARREY, Christophe MORALES
  • Patent number: 11830891
    Abstract: An image sensor including a plurality of avalanche photodiodes formed inside and on top of a semiconductor substrate of a first conductivity type having a front side and a back side, wherein: trenches vertically extend in the substrate from its front side to its back side, the trenches having, in top view, the shape of a continuous grid laterally delimiting a plurality of substrate islands, each island defining a pixel including a single individually-controllable avalanche photodiode, and including a doped area of collection of an avalanche signal of the pixel photodiode the lateral walls of the trenches are coated with a first semiconductor layer having a conductivity type opposite to that of the collection area, and a conductive region extends in the trenches, the conductive region being in contact with the surface of the first semiconductor layer opposite to the substrate.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: November 28, 2023
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Norbert Moussy, Cédric Giroud-Garampon, Olivier Saxod
  • Publication number: 20230375711
    Abstract: An image sensor including a plurality of photosites formed inside and on top of a semiconductor substrate, each photosite including: a first photosensitive area formed in the semiconductor substrate and adapted to capturing light in a first wavelength range; a second photosensitive area formed in the semiconductor substrate vertically in line with the first photosensitive area and adapted to capturing light in a second wavelength range, different from the first wavelength range; a first area of collection of charges photogenerated in the first and second photosensitive areas, arranged on the side of a surface of the substrate opposite to the first photosensitive area; a first transfer gate vertically extending from the first photosensitive area to said surface, adapted to transferring the charges photogenerated in the first photosensitive area to the second photosensitive area; and a second transfer gate, horizontally extending on said surface vertically in line with the second photosensitive area, adapted to
    Type: Application
    Filed: May 17, 2023
    Publication date: November 23, 2023
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Gaelle Palmigiani, François Deneuville, Olivier Saxod
  • Publication number: 20230375644
    Abstract: A magnetic field sensor includes a first coil responsive to a first AC coil drive signal having a first frequency, a magnetic field sensing element responsive to a sensing element drive signal and configured to simultaneously detect a directly coupled magnetic field generated by the first coil and a reflected magnetic field generated by an eddy current induced in a conductive target by the first coil, the conductive target disposed proximate to the magnetic field sensing element, the magnetic field sensing element further configured to generate a magnetic field signal, a second coil responsive to a second AC coil drive signal having a second frequency that is the same as the first frequency and current sensing circuitry configured to measure a magnitude of the second AC coil drive signal that causes the magnetic field signal to be approximately zero.
    Type: Application
    Filed: August 7, 2023
    Publication date: November 23, 2023
    Applicants: Allegro MicroSystems, LLC, Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Alexander Latham, Claude Fermon, Jason Boudreau, Myriam Pannetier-Lecoeur, Bryan Cadugan, Hernán D. Romero
  • Patent number: 11821517
    Abstract: A static metal seal comprising an outer sealing layer, wherein the outer sealing layer comprises a textured surface that is configured to come into contact with the surfaces that are to be sealed, the textured surface comprising a network of depressions spaced apart from one another on the textured surface, wherein the depressions are blind, do not pass all the way through the outer sealing layer, and do not communicate with one another.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: November 21, 2023
    Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SAS
    Inventors: Florent Ledrappier, Jean-François Juliaa, Marin Teissier, Michel Lefrancois, Thierry David, Tony Zaouter
  • Publication number: 20230368839
    Abstract: A memory cell, includes first and second main terminals, an auxiliary terminal; M memristor(s) between the main terminals, M?1; M primary switch(es), each in parallel with a memristor; and a secondary switch between the second main terminal and the auxiliary terminal. It is configured for writing to at least one memristor by opening each primary switch in parallel with the at least one memristor, closing each other primary switch, closing the secondary switch and applying a corresponding programming voltage between the first main terminal and the auxiliary terminal; and for reading at least one memristor by opening each primary switch in parallel with the at least one memristor, closing each other possible primary switch, opening the secondary switch and measuring a corresponding electrical quantity between the main terminals.
    Type: Application
    Filed: May 10, 2023
    Publication date: November 16, 2023
    Applicants: Commissariat à l'énergie atomique et aux énergies alternatives, Université d'Aix-Marseille, Centre national de la recherche scientifique
    Inventors: Djohan BONNET, Tifenn HIRTZLIN, Elisa VIANELLO, Eduardo ESMANHOTTO, Jean-Michel PORTAL
  • Patent number: 11815400
    Abstract: A detection system includes a readout substrate, at least one thermal detector associated with a reflector, and at least one compensation device including a compensation transducer in thermal contact with the readout substrate, arranged between the reflector and the readout substrate, and situated facing the reflector so as to be optically insensitive to the incident electromagnetic radiation.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 14, 2023
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Abdelkader Aliane, Alain Charpentier
  • Publication number: 20230361684
    Abstract: Electrical energy converter and associated system for converting electrical energy The invention relates to an electrical energy converter including an inverter (10) for obtaining alternative electrical energy from a DC electrical energy source. The inverter includes a switch (52) having first and second conduction terminals for receiving an AC voltage, the electrical energy converter being suitable for supplying an output electrical energy to a load (8). Said converter includes a capacitive circuit (14) with variable and controllable capacitance, connected between the inverter (10) and the load (8), the control of a modification of said capacitance making it possible to obtain a modification of an electrical output parameter of the converter.
    Type: Application
    Filed: April 28, 2023
    Publication date: November 9, 2023
    Applicant: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Vincent MASSAVIE, Ghislain DESPESSE, Sébastien CARCOUET, Xavier MAYNARD
  • Publication number: 20230348262
    Abstract: The present description concerns a method of manufacturing a microelectromechanical device, including the following successive steps: providing an SOI structure comprising a first semiconductor layer on an insulating layer; forming a second semiconductor layer by epitaxy on top of and in contact with the upper surface of the first semiconductor layer; transferring and bonding, by molecular bonding, a third semiconductor layer onto and in contact with the upper surface of the second semiconductor layer; and forming trenches vertically extending from the upper surface of the third semiconductor layer all the way to the upper surface of the insulating layer, said trenches laterally delimiting a mechanical element of the device.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 2, 2023
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Audrey Berthelot, Philippe Robert