Abstract: The invention relates to a method for obtaining a layer at least partially made of a nitride (N), first comprising the provision of a stack comprising at least one assembly of pads (1000A1-1000B4) extending from a substrate (100). Each pad comprises at least one creep section (220A1-220A5) and one crystalline section (300A1,300A5) surmounting the creep section (200A1-200A5). Then, a crystallite (510A1-510A5) is epitaxially grown on at least some of said pads until coalescence of the crystallites, so as to form a nitride layer (550A). The pads of the assembly are distributed over the substrate, such that the relative arrangement of the pads of the assembly is such that during the epitaxy of the crystallites, the progressive coalescence of the crystallites is always done between, on the one hand, a crystallite or a plurality of coalesced crystallites and, on the other hand, an isolated crystallite.

Abstract: A method for producing a device comprising GAA transistors. Advantageously, the channels of the transistors are produced by deposition of a semiconductor material, preferably a 2D material, after successive removal of certain layers of the initial stack. The gates-all-around are produced after selective removal of the other layers from the initial stack. The initial stack does not comprise the semiconductor material, nor the material of the gates. The subsequent deposition of the semiconductor material aims to better preserve the semiconductor material.

Abstract: A computer-implemented method for processing experimental data of a solid to be characterized, including atoms and including one or more defects, the experimental data coming from at least one sensor and having a multimodal distribution. The method includes the representation, in a space called descriptor space, of dimension K, comprised between 10 and 108, of one or more reference solid(s) and the data; the calculation for at least one portion of the atoms of the solid to be characterized of an experimental confidence score in the descriptor space, relative to the atoms of the reference solid; and the classification of the atoms of the structure depending on the experimental confidence score.

Abstract: An in-memory computing circuit includes a plurality of memory planes. Each plane forming a two-dimensional matrix of non-volatile, resistive and programmable memory cells. Each memory cell having a selection node, a first input/output node and a second input/output node. The computing circuit comprising at least one elementary group of memory cells comprising: a first memory cell belonging to any one of the memory planes and intended to store a first input datum; a second memory cell belonging to any one of the memory planes and intended to store a second input datum; a third memory cell belonging to a memory plane different from that of the first and of the second memory cell. The third memory cell being intended to store the result of a first logic operation with the first and second input data as operands.

Abstract: A device for detecting infrared radiation, includes at least one pixel having an axis in a direction Z, the pixel comprising a first absorbent planar structure comprising at least one semiconductor layer. The composition of the materials used to produce the at least one layer of the first absorbent planar structure is chosen such that: the first absorbent planar structure has an effective valence band formed by a plurality of energy levels. Each energy level is occupied by one of: a first type of positive charge carrier, called heavy holes, having a first effective mass; or a second type of positive charge carrier, called light holes, having a second effective mass strictly less than the first effective mass. The maximum energy level of the effective valence band is occupied by light holes along the axis of the pixel.

Abstract: An authentication method for a user who has a hierarchical deterministic keys wallet including a path between the user's master private key and a private key specific to a smart contract, the path including a plurality of branches each carrying an index, the smart contract being univocally identified by one or several indices of branches followed by the path. The user can issue a transaction from an issuing account address, obtained by hashing the public key corresponding to the specific private key in an asymmetric cryptosystem, and can sign this transaction using the specific private key. The smart contract uses the signature to verify that the transaction was really issued from the issuing account address in question.

Abstract: A process for manufacturing an electroluminescent device, comprising: (a) using a stack comprising, successively: a substrate having a surface; matrix arrays of pixels formed on the surface of the substrate, of columnar shape; an encapsulating layer arranged to cover the matrix arrays of pixels; a dielectric layer formed on the encapsulating layer; (b) performing a directional etch along the normal to the surface of the substrate, of a portion of the dielectric layer extending between the pixels of the matrix arrays of pixels; the dielectric layer having a portion remaining at the end of step (b); and (c) performing a selective chemical etch of the remaining portion of the dielectric layer with a chemical etchant that permits selective etching of the remaining portion of the dielectric layer with respect to the encapsulating layer.

Abstract: This invention relates to a solid-state battery and its production method.

Abstract: The present invention is related to expressing an AHA5 protein in plants, and preferentially a mutated AHA5 protein leading to a constitutive activity of AHA5, to control stomatal closure and improve tolerance to drought conditions and yield in plants.

Abstract: A parameterising method and system integrated within a high-intensity focused ultrasound (HIFU) treatment device. The parameterising system includes a real-time simulation unit that makes it possible to predict, on the basis of geometric and physiological parameters of tissue regions in the area to be treated, and treatment parameters, the distribution of the ultrasonic field within the area. The computation is performed in real time by means of a metamodel: the ultrasonic field is estimated from an interpolation of maps of the ultrasonic field which are pre-computed and stored in a database, the maps being associated with different values of the geometric and physiological parameters of the tissue regions in question. The thermal dose applied at each point during treatment is subsequently computed and the tissue response is estimated.

Abstract: This invention relates to a method for preparing a cyclic anhydride such as succinic anhydride and methyl succinic anhydride from an unsaturated carboxylic acid such as acrylic acid or crotonic acid. This method can also be used in the manufacture of food additives, plasticisers, polymers of interest, in particular polyurethanes and elastanes, resins, coatings and pharmaceutical products.

Abstract: The invention relates to a modular assembly (E) for storing heat by phase-change material including a plurality of heat-storage modules (M1) attached to one another, the heat-storage assembly comprising a vessel (2). At least two adjacent modules are disposed so that a porous external wall (6b) of one of the modules (M1) is arranged facing a porous external wall (6b) of the other of the modules (M1), and so that a solid external wall (6a) of one of the modules (M1), forming one of the parts of the vessel, is attached to a solid external wall (6a) of the other of the modules (M1), forming another part of the vessel.

Abstract: An electrochemical cell for testing a battery, wherein the electrochemical cell includes two electrodes, preferentially made of vitreous carbon, intended to be in electrical contact with the battery to be tested.

Abstract: An assembly includes a solid-oxide pack of the SOEC/SOFC type and a system for clamping the pack. The assembly furthermore includes a coupling system gastight at high temperature, including a clamping base with a first through internal pipe to enable a tube to pass, a support base located in the pipe and having a second through internal pipe, and a seal, having a C shape, positioned against a first end of the support base. One of the clamping plates includes a through pipe for gas to pass having a support surface for the seal and a threaded countersink for receiving a thread of the clamping base.

Abstract: An acoustic, preferably ultrasonic, wave emission and/or reception device, including a wave emitter configured to transmit waves at an emission frequency, and a receiver of preferably ultrasonic waves, separate from the emitter, having a resonance frequency, and configured to receive waves generated by the emitter and including direct waves and reflected waves, wherein the device includes a resonance frequency modulator of the receiver and a control unit configured to control the resonance frequency modulator during a predetermined time period, so as to reduce the sensitivity of the receiver during the predetermined time period by moving the resonance frequency of the receiver away from the emission frequency of the emitter. The acoustic device relates to the field of ultrasonic sensors, particularly PMUTs or CMUTs, having a high quality factor.

Abstract: A firing method for a set of electronic detonators includes receipt, by a receiving device associated with one or more electronic detonators, of an ignition command from a transmitted sequence of ignition commands including at least two ignition commands, a synchronisation delay being associated with each ignition command. A counting down, from the time of receipt of the ignition command, of the synchronisation delay associated with the received ignition command, and a counting down of an ignition delay associated with each electronic detonator from a synchronisation time corresponding to the time at which the countdown of the synchronisation delay is complete, are carried out. Each electronic detonator is ignited once the countdown of the ignition delay is complete. An electronic detonator includes a reception device, first and second countdown devices and a firing device.

Abstract: The invention relates to an electrochemical device that includes an electrochemical unit. The electrochemical unit includes a stack of SOEC/SOFC-type solid oxides operating at high temperatures, a clamping system provided with two clamping plates, referred to as the first clamping plate and second clamping plate, respectively, between which the stack is clamped, one and/or both of the two clamping plates having at least one gas inlet and at least one gas outlet. The unit includes heating means which are designed to ensure the heating of the electrochemical unit and are integrated into said unit. The device includes a containment box, housed in a volume, referred to as internal volume V, the electrochemical unit, the internal volume V being delimited by a surface, referred to as the internal surface S, of the containment box, which follows the shape of the electrochemical assembly.

Abstract: A method for forming spacers of a gate of a transistor is provided, including: providing an active layer surmounted by a gate; forming a dielectric layer covering the gate and the active layer, the dielectric layer having lateral portions, and basal portions covering the active layer; anisotropically modifying the basal portions by implantation of hydrogen-based ions in a direction parallel to the lateral sides of the gate, forming modified basal portions; annealing desorbing the hydrogen from the active layer and transforming the modified basal portions into second modified basal portions; and removing the modified basal portions by selective etching of the modified dielectric material with respect to the non-modified dielectric material and with respect to the semiconductive material, so as to form the spacers on the lateral sides of the gate.

Abstract: A laser device includes a III-V heterostructure amplifying medium; a silicon optical waveguide having a coupling section facing a central portion of the amplifying medium, a propagation section and a first transition section between the coupling section and the propagation section; and a first and a second reflective structure allowing a Fabry-Perot type resonant cavity to be formed between them for the amplifying medium. The coupling section includes a refractive index disruption region provided with micro-reflectors designed to reduce the thickness and/or width of the coupling section. The first reflective structure is formed in a section of the waveguide with a first thickness. The second reflective structure is formed in a section of the waveguide, which has the first thickness and which is separated from the coupling section by a second transition section of the waveguide, the second transition section having a second thickness greater than the first thickness.

Abstract: A photoacoustic detecting device to be applied, via a contact face, against a medium to be analyzed, the device comprising: a hollow cavity; a light source that is pulsed or amplitude-modulated; an acoustic detector configured to detect an acoustic wave extending through the cavity, the device further comprises an interface membrane, forming the contact face, the interface membrane being configured to: form an interface between the gas, filling the cavity, and the medium to be analyzed; block passage of a liquid or gel between the medium to be analyzed and the cavity; and generate an acoustic pressure wave inside the cavity, under the effect of a variation in the temperature of the interface membrane, the temperature variation of the interface membrane being induced by heating of the medium resulting from illumination of the medium.