Patents Assigned to Commissariat à l'énergie atomique et aux energies alternatives
-
Publication number: 20240014542Abstract: 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: ApplicationFiled: July 6, 2023Publication date: January 11, 2024Applicant: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Romain ALCESILAS, Marc SANSA PERNA, Camille JOUVAUD
-
Patent number: 11867632Abstract: 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: GrantFiled: November 4, 2019Date of Patent: January 9, 2024Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Younès Belrhiti, Mickaël Albaric, Malek Benmansour, David Pelletier
-
Publication number: 20240003854Abstract: 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: ApplicationFiled: June 29, 2023Publication date: January 4, 2024Applicant: Commissariat à l'Energie Atomique et aux Energies AlternativesInventor: Arnaud RECOQUILLAY
-
Publication number: 20240006231Abstract: 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: ApplicationFiled: June 30, 2023Publication date: January 4, 2024Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Pierre MONTMEAT, Frank FOURNEL
-
Patent number: 11863890Abstract: 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: GrantFiled: December 17, 2020Date of Patent: January 2, 2024Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventor: Gaelle Palmigiani
-
Publication number: 20230417598Abstract: 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: ApplicationFiled: June 16, 2023Publication date: December 28, 2023Applicant: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventor: François Deneuville
-
Patent number: 11851365Abstract: 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: GrantFiled: September 18, 2020Date of Patent: December 26, 2023Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Frédéric Angeli, Patrick Jollivet
-
Publication number: 20230395933Abstract: 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: ApplicationFiled: October 26, 2021Publication date: December 7, 2023Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Rémi VINCENT, Nicolas FERRIER
-
Patent number: 11834329Abstract: 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: GrantFiled: March 31, 2021Date of Patent: December 5, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Marc Sansa Perna, Martial Defoort
-
Patent number: 11838016Abstract: 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: GrantFiled: September 4, 2020Date of Patent: December 5, 2023Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: René Escoffier, Julien Buckley
-
Publication number: 20230387070Abstract: 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: ApplicationFiled: May 17, 2023Publication date: November 30, 2023Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Frank FOURNEL, Aziliz CALVEZ, Vincent LARREY, Christophe MORALES
-
Publication number: 20230386891Abstract: 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: ApplicationFiled: May 12, 2023Publication date: November 30, 2023Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Frank FOURNEL, Aziliz CALVEZ, Vincent LARREY, Christophe MORALES
-
Patent number: 11830891Abstract: 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: GrantFiled: October 21, 2020Date of Patent: November 28, 2023Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Norbert Moussy, Cédric Giroud-Garampon, Olivier Saxod
-
Publication number: 20230375711Abstract: 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 toType: ApplicationFiled: May 17, 2023Publication date: November 23, 2023Applicant: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Gaelle Palmigiani, François Deneuville, Olivier Saxod
-
Publication number: 20230375644Abstract: 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: ApplicationFiled: August 7, 2023Publication date: November 23, 2023Applicants: Allegro MicroSystems, LLC, Commissariat à l'énergie atomique et aux énergies alternativesInventors: Alexander Latham, Claude Fermon, Jason Boudreau, Myriam Pannetier-Lecoeur, Bryan Cadugan, Hernán D. Romero
-
Patent number: 11821517Abstract: 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: GrantFiled: December 13, 2019Date of Patent: November 21, 2023Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, TECHNETICS GROUP FRANCE SASInventors: Florent Ledrappier, Jean-François Juliaa, Marin Teissier, Michel Lefrancois, Thierry David, Tony Zaouter
-
Publication number: 20230368839Abstract: 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: ApplicationFiled: May 10, 2023Publication date: November 16, 2023Applicants: Commissariat à l'énergie atomique et aux énergies alternatives, Université d'Aix-Marseille, Centre national de la recherche scientifiqueInventors: Djohan BONNET, Tifenn HIRTZLIN, Elisa VIANELLO, Eduardo ESMANHOTTO, Jean-Michel PORTAL
-
Patent number: 11815400Abstract: 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: GrantFiled: May 28, 2019Date of Patent: November 14, 2023Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Abdelkader Aliane, Alain Charpentier
-
Publication number: 20230361684Abstract: 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: ApplicationFiled: April 28, 2023Publication date: November 9, 2023Applicant: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Vincent MASSAVIE, Ghislain DESPESSE, Sébastien CARCOUET, Xavier MAYNARD
-
Publication number: 20230348262Abstract: 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: ApplicationFiled: April 27, 2023Publication date: November 2, 2023Applicant: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Audrey Berthelot, Philippe Robert