Abstract: Production of a triboelectric generator element based on a given dielectric polymer material, provided with a rough surface comprising conical micro-tip shaped structures obtained by means of a heat treatment of the polymer material (FIG. 1C).

Abstract: A method for manufacturing an electroactive actuator is provided. The method includes applying a layer of an electroactive polymer to an electrode surface, crystallizing the electroactive polymer by application of U.V. flash and applying a second electrode onto the crystallized electroactive polymer layer. According to the method a stack of multiple superimposed first electrode layers, electroactive polymer layers and second electrode layers may be obtained.

Abstract: An interface device comprises a layer of a material thoroughly crossed by metal electrodes intended to electrically connect two electronic circuits. According to the present invention, the layer of material comprises a graphene layer and the electrodes each comprise a central electrically-conductive element formed across the thickness of the graphene layer and an electrically-insulating peripheral layer, interposed between the central element and the graphene layer.

Abstract: A humidity-sensing device and a method of producing the humidity-sensing device. The humidity-sensing device is of capacitive type and includes a dielectric material with low permeability to moisture and an electrode with permeability to moisture greater than that of the dielectric material with which it is in contact.

Abstract: A piezoelectric device including a substrate, at least two electrodes extending on the substrate, at least one piezoelectric strip extending on the substrate and on the electrodes, and at least one electrically-conductive strip extending at least on one of the electrodes and on the piezoelectric strip and in contact with the substrate on either side of the piezoelectric strip.

Abstract: A device including: a paper film including cellulose fibers, a first surface, and a second surface opposite to the first surface; and at least one first heat-sensitive resistor having a negative temperature coefficient, the first heat-sensitive resistor including a first electrode arranged on the first surface, a second electrode arranged on the second surface, the first and second electrodes having at least first portions facing each other, the first heat-sensitive resistor further including the portion of the paper film arranged between the first portions facing each other. The invention also relates to a method of manufacturing such a device.

Abstract: A piezoelectric device including a paper film including cellulose fibers and containing an additive selected from the group including 4-fluorophenethyl isocyanate, 2-2 diphenyl-ethyl isocyanate, nitrophenyl isocyanate, 1-adamantyl iso-cyanate, cyanophenyl isocyanate, and triphenylamine grafted to the cellulose fibers, the film further having a first surface and a second surface opposite to the first surface and a first electrode arranged on the first surface and a second electrode arranged on the second surface.

Abstract: A tin-based material includes: from 50 to 100 wt. parts of grapheme; from 0 to 50 wt. parts of antimony-doped tin dioxide (ATO); from 0 to 50 wt. parts of indium-doped tin dioxide (ITO). The material includes at least ATO and/or ITO.

Abstract: This touch-sensitive sensor includes a layer of piezoelectric material interposed between, on the one hand, first and second electrically-conductive elements and, on the other hand, at least one third conductive element including a surface opposite at least one of the first and second conductors.

Abstract: An electronic circuit, including a substrate made of a first polymer having a first glass transition temperature lower than 200° C., the substrate having first and second opposite surfaces; a first layer or first tracks of a second polymer on the first surface; a second layer or second tracks of the second polymer or of a third polymer on the second surface, the second and third polymers being different from the first polymer and having a second glass transition temperature higher than 200° C.; and third electrically-conductive tracks on the first layer or the first tracks.

Abstract: A device including an electrically conducting track arranged on a support includes a step of supply of the support, and a step of formation of the electrically conducting track on the support including a step of supply of a solution intended to be deposited on the support, a step of deposition of the solution by printing on the support. The step of supply of the solution is such that the solution supplied includes a mixture of a solvent, of a set of metal particles and of a metallic material having a melting point below that of the metal particles of the set of metal particles, and the method includes a step of melting of the metallic material which results in the formation of a solder of metallic material between metal particles of the set of metal particles.

Abstract: An X-ray detector including a substrate having opposite first and second faces, at least a first temperature sensor on the side of the first or second face, and at least one stack including of a copper oxide layer and a copper layer. The copper oxide layer is located between the copper layer and the substrate. The stack covers at least partially the first temperature sensor or is at least partially opposite the first temperature sensor.

Abstract: A temperature sensor including a capacitive circuit including an input terminal for the application of an input voltage, an output terminal for the reading of an output voltage of the circuit, and a reference potential terminal, a voltage circuit for applying a predetermined voltage to the input terminal of the circuit and a circuit for reading the voltage at the output terminal of the capacitive circuit and converting the read voltage into a temperature measurement. According to the invention, the capacitive circuit includes a fir capacitor, connected between the input and output terminals, and having a capacitance decreasing according to temperature; and a second capacitor, connected between the input terminal and the terminal at the reference potential, and having a capacitance increasing along with temperature.

Abstract: The invention relates to a method for manufacturing an electroactive actuator from a stack comprising a first electrode (20) and a layer comprising an electroactive polymer superposed on the electrode (20), the electroactive polymer being deformed when it is in a crystalline state and when an electric field is applied thereto, with the method comprising: a step of obtaining an electroactive layer (30) comprising a step of crystallisation the layer comprising the electroactive polymer superposed on the stack; a step of forming a second electrode (21) in such a way that the electroactive layer (30) is disposed between the two electrodes (20, 21); characterised in that the electroactive polymer is formed from a material which crystallises under the effect of an ultraviolet flash and in that the crystallisation step includes a UV flash step. The invention further relates in particular to electroactive actuator.

Abstract: An X-ray detector including a substrate having opposite first and second faces, at least a first temperature sensor on the side of the first or second face, and at least one stack including of a copper oxide layer and a copper layer. The copper oxide layer is located between the copper layer and the substrate. The stack covers at least partially the first temperature sensor or is at least partially opposite the first temperature sensor.

Abstract: A device and method recovering heat energy and converting the heat energy into electrical energy by heat-sensitive molecules to which are connected magnetic particles, with the heat-sensitive molecules able to move the magnetic particles in relation to a conductive circuit to generate an induced current in the circuit.

Abstract: A method of manufacturing an electronic device including a film, including the steps of forming at least one layer of a solution including a solvent and a compound including a polymer selected from the group including poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)), poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) (P(VDF-TrFE-CTFE)) and a mixture of these compounds, the molecular rate of chlorine in the copolymer being greater than or equal to 3%; and irradiating at least the layer with pulses of at least one ultraviolet radiation.

Abstract: The invention concerns a method of flip-chip assembly between first (1) and second (2) components each comprising connection pads (11, 21) on one of the faces of same, referred to as assembly faces, which involves transferring the components onto each other via the assembly faces of same in such a way as to create electrical interconnections between the pads of the first and second components. The invention involves transforming the copper oxide into copper by UV annealing, very locally, in the gap between the components, at least around the areas adjacent to the connection pads. The method according to the invention can be used for any component that is transparent to UV rays, including for substrates made from a plastic material such as substrates made from PEN or PET. The invention also concerns the assembly of two components obtained by the method.

Abstract: The invention concerns a method of flip-chip assembly between first (1) and second (2) components each comprising connection pads (11, 21) on one of the faces of same, referred to as assembly faces, which involves transferring the components onto each other via the assembly faces of same in such a way as to create electrical interconnections between the pads of the first and second components. The invention involves transforming the copper oxide into copper by UV annealing, very locally, in the gap between the components, at least around the areas adjacent to the connection pads. The method according to the invention can be used for any component that is transparent to UV rays, including for substrates made from a plastic material such as substrates made from PEN or PET. The invention also concerns the assembly of two components obtained by the method.

Abstract: A device including: a paper film including cellulose fibers, a first surface, and a second surface opposite to the first surface; and at least one first heat-sensitive resistor having a negative temperature coefficient, the first heat-sensitive resistor including a first electrode arranged on the first surface, a second electrode arranged on the second surface, the first and second electrodes having at least first portions facing each other, the first heat-sensitive resistor further including the portion of the paper film arranged between the first portions facing each other. The invention also relates to a method of manufacturing such a device.