Patents Assigned to Commissariat a l'Energie Atomique et Aux Energies Alternatives
  • Publication number: 20250081685
    Abstract: The invention relates to a method for manufacturing an optoelectronic device (1) including an array of diodes (D1, D2, D3) and an array of colour conversion portions (P1, P2), including the following steps: providing the array of diodes (D1, D2, D3), and the upper electrode layers (E1, E2, E3); depositing a dielectric layer (26) having a substantially zero surface potential; applying a potential difference between an electrode (2) and the first upper electrode layers (E1), resulting in the formation of first patterns (M1) with non-zero surface potential in the dielectric layer (26); producing the first colour conversion portions (P1), by contacting the dielectric layer (26) with a colloidal solution (S1) containing first photoluminescent particles (p1).
    Type: Application
    Filed: September 3, 2024
    Publication date: March 6, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: François TEMPLIER, Stéphane ALTAZIN, Aurélien SUHM, Jérémy BILDE, Etienne QUESNEL
  • Publication number: 20250076457
    Abstract: The invention relates to a frequency-modulated, continuously transmitting radar measurement device including a generator configured to generate N first periodic radar signals, the frequency of each of said first periodic radar signals varies linearly as a function of time, in a frequency band B, over sections Tx of a part Ttrame of a period T, the frequencies of said first periodic radar signals being different from one another at each time instant of the part Ttrame; N transmit antennas; M receive antennas, each receive antenna being configured to receive a signal including echoes of the first periodic radar signals; a receive circuit configured to calculate, from the M signals, a range and/or a radial velocity and/or an angle, associated with a reflector detected by the radar measurement device.
    Type: Application
    Filed: August 28, 2024
    Publication date: March 6, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Mykhailo ZARUDNIEV, Laurent OUVRY
  • Publication number: 20250079122
    Abstract: A method for etching at least a portion of a layer based on a III-N material includes exposing a least one portion of an upper face of the III-N layer to a plasma treatment with bias voltage pulsing based on chlorine, wherein the plasma treatment is configured to present a duty cycle comprised between 20% and 80%. A first non-zero polarization bias is applied to the substrate during Ton, and a second polarization bias lesser than the first non-zero polarization bias or no polarization bias is applied, during Toff, so as to etch the portion of the III-N layer. The duration of the etching is significantly reduced to obtain a satisfying quality of the III-N layer for the operation of a microelectronic device, such as a transistor or a diode.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 6, 2025
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, LAM RESEARCH CORPORATION
    Inventors: Nicolas POSSEME, Simon RUEL, Patricia PIMENTA BARROS, Bryan HELMER, Philippe THOUEILLE
  • Patent number: 12244119
    Abstract: A laser includes a distributed Bragg mirror and is configured to emit monochromatic light radiation along a longitudinal direction. The laser has layers, stacked along a first transverse direction normal to the longitudinal direction and made of III-V materials, including an active region configured to emit the radiation. The mirror is formed by periodic lateral corrugations which extend mainly along the longitudinal direction and having a dimension along a second transverse direction normal to the longitudinal direction. The lateral corrugations of the Bragg mirror extend from a top surface of the waveguide pattern along the first transverse direction on a height strictly less than the depth, at which the active region is located starting from the top surface, such that a portion of lateral flanks of the waveguide is free of any lateral corrugations at the active region.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: March 4, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Vincent Reboud, Maryse Fournier, Jean-Marc Fedeli
  • Patent number: 12241858
    Abstract: A potentiometric oxygen sensor for measuring an oxygen concentration of a liquid metal, which includes a metal tube forming at least one sensor body part, an electrochemical subassembly, and an insert made of a transition metal from group 4 of the Periodic Table or its alloy. The electrochemical subassembly contains an electrolyte, intended to be in contact with the liquid metal, and a reference electrode contained in the electrolyte, the electrolyte being made of yttrium-doped or calcium-doped hafnia (HfO2), or of thoria (ThO2), which is optionally yttrium-doped or calcium-doped, or of yttrium-doped or calcium-doped zirconia (ZrO2). The reference electrode contains at least one metal and its oxide form at the operating temperature of the potentiometric oxygen sensor. The insert is arranged between the sensor body part and the electrolyte, and is attached to the sensor body part and brazed onto the electrolyte by a brazing joint.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: March 4, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Laurent Brissonneau
  • Patent number: 12241869
    Abstract: Methods and devices are provided for analyzing a tubular structure including at least two electromagnetic-acoustic transducers (EMAT) and, called sensors, attachable or attached in, on or in the vicinity of the tubular structure; and computation and/or memory resources, that are accessed locally and/or remotely and that are configured to determine, for the pair of sensors, a function representing the impulse response of the tubular structure on the basis of the diffuse acousto-elastic noise present in the structure. Developments describe the use of rings supporting the sensors; translation and/or rotation movements; permanent or temporary installations; hinged rings; various computation modes, e.g., intercorrelation, a passive inverse filter, or correlation of the coda of the correlation; the use of artificial noise sources, imaging (e.g., tomography) for determining the existence of one or more defects in the structure. Software aspects are described.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 4, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Tom Druet, Olivier Mesnil, Bastien Chapuis
  • Patent number: 12243926
    Abstract: A HEMT GaN transistor with a conductive gate including an upper metal region, and a lower semi-conductor region provided to lower current gate leakage. The lower semiconductor region is formed of: a first sub-region that is P-doped and in contact with the metal region, a second sub-region that is P-doped and in contact with the second layer, and an intermediate sub-region arranged between the first sub-region and the second sub-region, the third sub-region being un-doped or unintentionally doped or doped with a low concentration of dopant compared to that of the first sub-region and second sub-region, respectively.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: March 4, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Gokhan Atmaca
  • Publication number: 20250067887
    Abstract: The invention is based on a method for processing an X-ray and gamma-ray radiation spectrum acquired by a spectrometry device (1). The processing method takes into consideration a spectral dispersion matrix (D). The spectral dispersion matrix models the energy response of the device. The method comprises establishing a transfer matrix (U,U?,D?), using the spectral dispersion matrix. The transfer matrix is then used to establish a direct model, linking measured variables, forming an input vector (m), and variables to be estimated, forming an output vector. The invention of the direct model allows the output vector (a,s,h,?) to be estimated. The invention may be applied to quantifying the activity of an object to be inspected or to performing an energy or efficiency calibration of the spectrometry device. FIG. 2B.
    Type: Application
    Filed: December 29, 2022
    Publication date: February 27, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Kélian THIS, Adrien FRIGERIO, Sébastien COLAS
  • Publication number: 20250070212
    Abstract: An assembly includes a stack of SOEC/SOFC solid oxide cells, the stack having a plurality of plates stacked one on top of the other, each plate having an outer lateral surface, the plurality of plates including at least a plurality of electrochemical cells, a plurality of interconnectors, and upper and lower end plates. At least two guiding elements are configured to guide the vertical stacking of at least some of the plates of the stack. The at least two guiding elements extend vertically in a vertical direction and bear against the outer lateral surface of each of the at least some of the plates.
    Type: Application
    Filed: January 12, 2023
    Publication date: February 27, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Stéphane DI IORIO, Thibault MONNET, Bastien GERVASONI, Olivier GILLIA, Karl VULLIEZ
  • Publication number: 20250065296
    Abstract: A method for manufacturing a porous monolith includes: forming a sol including a sol-gel precursor in aqueous solution; at least partially filling with previously formed sol an enclosure and at least one mould contained in the enclosure, the mould including at least one opening into the sol after filling; forming a sol-gel matrix in the enclosure from the sol; removing the mould with the sol-gel matrix contained in the mould from the enclosure; and forming a porous monolith from the sol-gel matrix contained in the mould, wherein the formation of the sol, the sol-gel matrix, and the porous monolith is performed by a sol-gel process.
    Type: Application
    Filed: December 22, 2022
    Publication date: February 27, 2025
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Laurent MUGHERLI, Marc MALEVAL, Maartine MAYNE
  • Publication number: 20250070211
    Abstract: A stack of SOEC/SOFC solid oxide cells includes a plurality of stacked plates and two guiding elements ensuring that the vertical stacking of at least some of the plates is guided, each plate having two guiding orifices. In a cross-sectional view, the guiding orifices are aligned in a first horizontal direction and are spaced apart by a smaller inter-orifice distance, the guiding elements being spaced apart by a greater smaller inter-element distance and the difference corresponding to the identical inner clearance for the two guiding orifices. The guiding orifices are spaced apart by a larger inter-orifice distance and the guiding elements are spaced apart by a shorter larger inter-element distance, the difference corresponding to the outer clearance, which is greater than the inner clearance.
    Type: Application
    Filed: January 12, 2023
    Publication date: February 27, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Olivier GILLIA, Mathieu MONTEREMAND
  • Publication number: 20250069292
    Abstract: A method for obtaining and processing an image acquired by a gamma camera, the gamma camera comprising a detector configured to detect X-ray or gamma-ray photons emitted in a field of observation of the gamma camera, in order to obtain a reconstructed image. The reconstructed image corresponds to a position of radiation sources in the field of observation, the reconstructed image being liable to contain multiple regions of interest corresponding to hotspots. The method comprises selecting a region of interest so as to determine a probability of the hotspot being present in the selected region of interest.
    Type: Application
    Filed: December 23, 2022
    Publication date: February 27, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Guillaume MONTEMONT
  • Publication number: 20250067597
    Abstract: The invention is a method for processing a calibration spectrum acquired by a spectrometric detector of X or gamma photons. The method comprises a taking into account of a parametric form of a calibration function, the calibration function linking the rank of an energy channel to an energy value. The method comprises a confrontation between the channels of the peaks of the calibration spectrum and emission energies of calibration isotopes. The confrontation makes it possible to define the values of the parameters of the calibration function.
    Type: Application
    Filed: December 29, 2022
    Publication date: February 27, 2025
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRALESUPELEC, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PARIS-SACLAY
    Inventors: Kélian THIS, Adrien FRIGERIO, Sébastien COLAS, Laurent LE BRUSQUET
  • Patent number: 12233577
    Abstract: A method for manufacturing a mould for nanoprinting and the associated mould, includes providing a substrate having a layer, and at least one ion implantation configured so as to obtain in the layer, at least one first non-implanted portion or portion having a first implantation, at least one second portion having a second implantation, and a third non-implanted portion distinct from the first portion. After implantation, the method includes etching the layer configured so as to have a different etching speed between at least the second portion and the third portion, so as to etch through the openings of an etching mask, a plurality of patterns of different heights being included in the layer.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 25, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Hubert Teyssedre, Nicolas Posseme, Stefan Landis
  • Patent number: 12235090
    Abstract: A wireless electronic detonator includes a primary source of energy and at least one functional module. A power switch is disposed between the primary source of energy and the functional module to connect or disconnect the functional module and the primary source of energy. A controller controls the power switch and includes an optical receiver to detect and demodulate a light signal emitted by a control console, The controller generates a control signal according to the demodulated light signal to at least control the power switch. A wireless detonation system includes the wireless electronic detonator and the control console configured to emit a light signal, and method for activating the wireless electronic detonator.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: February 25, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Lionel Biard, Bernard Piaget, Mélanie Descharles, Vincent Berg, Franck Guyon
  • Patent number: 12234144
    Abstract: A method for sealing cavities using membranes, the method including a) forming cavities arranged in a matrix, of a depth p, a characteristic dimension a, and spaced apart by a spacing b; and b) forming membranes, sealing the cavities, by transferring a sealing film. The method further includes a step a1), executed before step b), of forming a first contour on the front face and/or on the sealing face, the first contour comprising a first trench having a width L and a first depth p1, the formation of the first contour being executed such that after step b) the cavities are circumscribed by the first contour, said first contour being at a distance G from the cavities between one-fifth of b and five b.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: February 25, 2025
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SOITEC
    Inventors: Thierry Salvetat, Bruno Ghyselen, Lamine Benaissa, Caroline Coutier, Gweltaz Gaudin
  • Patent number: 12237330
    Abstract: A device with stacked transistors includes a first transistor of a first type, in particular N or P, the first transistor having a channel formed in one or more first semi-conducting rods of a semi-conducting structure including semi-conducting rods disposed above each other and aligned with each other, and a second transistor of a second type, in particular P or N, with a gate-surrounding gate and a channel region formed in one or more second semi-conducting rods of said semi-conducting structure and disposed above the first semi-conducting rods. The source block of the second transistor is distinct from the source and drain block of the second transistor, and the drain block of the second transistor is distinct from the drain and source blocks of the second transistor.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 25, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Sylvain Barraud, Jean-Pierre Colinge, Bernard Previtali
  • Publication number: 20250060336
    Abstract: A method for measuring relative concentrations of materials in a mixture includes providing an emission coil and at least one reception coil, providing a mixture with n materials having different magnetic susceptibilities, and introducing the mixture into the reception coil. Using a voltage generator the emission coil is supplied with at least one nonzero excitation frequency so as to generate an excitation magnetic field and the signal of the voltage induced in the reception coil is measured. Relative concentrations of the n materials are determined based on comparison between the overall susceptibility of the mixture as obtained through the voltage measurement and that of a reference mixture for which the relative concentrations of the n materials are known.
    Type: Application
    Filed: December 22, 2022
    Publication date: February 20, 2025
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Myriam PANNETIER-LECOEUR, Claude FERMON, Aurélie SOLIGNAC, Julien MARTINEZ, Vincent ROYET
  • Patent number: 12230807
    Abstract: A unit cell of a fuel cell may include: a membrane-electrode assembly including a proton exchange membrane, an anode electrode fastened to a first face of the proton exchange membrane, a first flow guide plate positioned facing the anode electrode and including at least one flow channel having a fuel inlet zone, a median flow zone and a fuel outlet zone. The anode electrode may have, at the fuel outlet zone, a tolerance to carbon monoxide pollution greater than its average tolerance to carbon monoxide pollution at the median flow zone and at the fuel inlet zone.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: February 18, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Sylvie Escribano, Marion Chandesris, Laure Guetaz, Pascal Schott, Marion Scohy
  • Patent number: 12228767
    Abstract: An integrated optical component, including a transparent pad arranged on the upper face of the basic optical component, the transparent pad including a plane mirror at its upper face, and the basic optical component including a convergent mirror at its upper face, the plane and convergent mirrors being arranged such that the light beam is propagated between the internal light gate and the external light gate by passing through the transparent pad by reflection on the plane mirror and by reflection on the convergent mirror.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: February 18, 2025
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Olivier Castany