Abstract: The invention relates to a method for producing a thin layer (8) containing at least one component (6, 6A, 6B) comprising:—a preparation step, wherein an added layer (2, 3, 4) is created on a support (1), at least one part (2) of said layer being adapted for local embrittling and said substrate and the part which can be embrittled being made from different materials and/or having different microstructures; an embrittlement step, wherein a fragile underlayer (5) is produced in the part which can be embrittled; a work step, wherein at least one component (6, 6A, 6B) is created on said added layer; and a separation step, wherein a dissociation is induced in the part which can be embrittled, along said fragile underlayer, in order to produce a thin layer (8) comprising a part of said added layer and said component.

Abstract: This invention consists of transforming a liquid crystal flat screen, normally designed to operate in transmissive mode, to enable it to operate in reflective mode so as to consume less energy. To do this, some screen elements inserted between the liquid crystal layer (3) and the reflector (9) must satisfy a specific relation.

Abstract: The invention concerns a pressure sensor (1), able to operate at high temperature and measure the pressure of a hostile medium, comprising:

Abstract: The invention concerns a pressure sensor (1), able to operate at high temperature and measure the pressure of a hostile medium, comprising: a sensing element (4) integrating a membrane (8) in monocrystalline silicon carbide, made by micro-machining a substrate in polycrystalline silicon carbide, a first surface of membrane (8) intended to contact said medium, a second surface of membrane (8) comprising membrane deformation detection means (9) connected to electric contacts (10) to connect electric connection means (11), the surfaces of sensing element (4) contacting said medium being chemically inert to this medium; a carrier (5) to support sensing element (4) so that said first surface of membrane (8) may be contacted with said medium and the second surface of membrane (8) may be shielded from said medium, carrier (5) being in polycrystalline silicon carbide; a seal strip (6), in material containing silicon carbide, brazed between carrier (5) and sensing element (4) to protect the second surface of membra

Abstract: Chemical and/or biological analysis device comprising an analysis support (100) with at least one input bowl (102) to contain a sample, at least one output bowl (104) to output the said sample, at least one internal duct (108) passing through the support to form a connection between the input bowl and the output bowl, and at least one reagent reservoir (120a, 120b, 120c) connected to each duct (108) between the input bowl and the output bowl, in which the input bowl, the output bowl and the reservoir open up onto a first face (106) of the analysis support.

Abstract: A chemical or biological analysis multi-point micro-system including a structure equipped with micro-wells, each micro-well being intended to receive a reagent coupled with a conductive polymer. Each micro-well includes a reception electrode on which the reagent is fixed by the conductive polymer with which it is coupled. Each micro-well also includes a counter-electrode arranged so as to be able to apply, in a volume of the micro-well, an electric field between its counter-electrode and its reception electrode. The structure further enables the simultaneous connection of all the reception electrodes to a first electric potential and enables the simultaneous connection of all the counter-electrodes to a second electric potential to be able to set up the electric field.

Abstract: A micromachined structure able to operate at a high temperature, including a deformable membrane secured on a support allowing for its deformation. The membrane includes at least a membrane layer in a material retaining its elasticity for the high operating temperature. The membrane layer supporting components detect the deformation of the membrane, made in a semiconducting material, and it has an electrically insulating interface with the detection components, formed by an electrically insulating layer. The support is made in a material enabling the membrane to be released by a microelectronics technique.

Abstract: The present invention relates to a system for measuring at least one physical parameter in a place in a patient's body to which a medical probe has access, comprising a medical probe (1) equipped with a sensor of said parameter and means for emitting an electrical signal that represents said parameter and that is received by the sensor, to a data processing device outside the patient's body.

Abstract: Devices and methods for carrying out a chemical or biochemical protocol are disclosed. In one embodiment, the chemical or biochemical protocol is performed by cycling at least one thermal transfer member between at least two temperatures while liquid samples on which the chemical or biochemical protocol is to be performed are continuously moving through at least one temperature regulated zone upon which the at least one thermal transfer member acts. In some embodiments, the device comprises a sample transport member that comprises liquid samples in sample receiving regions. The sample transport member moves the samples continuously through a temperature regulated zone which cycles between at least two temperatures while the liquid samples are moving through a temperature regulated zone on which at least one thermal transfer member acts. In some embodiments, the sample receiving regions comprise wells, hydrophillic films or hydrophillic filaments.

Abstract: Support comprising electrodes covered by a deposit and a system for reading this support. This support comprising a substrate (22) and electrodes (24) on this substrate, at least one of these electrodes being designed to be covered by a deposit capable of recognizing and capturing molecule-targets that are sensitive to a first light and that are capable of emitting a second light when they are excited by the first light. The substrate and electrodes are transparent to at least the first or the second light. The system comprises a light source (60) emitting the first light and means (62) of detecting the second light. Application to biological sensors.

Abstract: An apparatus for detecting an analyte in a sample, including a cell with at least one fixed electrode, at least one mobile electrode opposite the fixed electrode, the mobile electrode being configured to move with respect to the fixed electrode, and a sample receiving cavity defined by a space between the fixed electrode and the mobile electrode, wherein a surface of at least one of the fixed electrode and mobile electrode facing the sample receiving cavity is configured to bound a ligand of the analyte to be detected. The apparatus also includes a displacement mechanism configured to move the mobile electrode; and an external circuit connected to the fixed electrode and to the mobile electrode, and configured to measure a parameter having a value depending on the presence between the fixed electrode and the mobile electrode of the analyte to be detected.

Abstract: A cathode (1) includes a substrate (10), a resistive layer (11) disposed on the substrate (10); at least one cathode conductor (13), and microtips (2) disposed on the resistive layer (11), wherein the cathode conductor (13) has circular wells (17) in the middle of each of which a microtip (2) is disposed, whereby the microtips (2) are electrically isolated from the cathode (13) by a constant access resistance.

Abstract: A method and device for the electrolytic formation of a deposit on a group of electrodes of an electrolysis support. The support has a plurality of electrodes. Electric charges are selectively deposited on chosen electrodes. The support is placed in the presence of an electrolyte to produce the deposit on the chosen electrodes by electrolysis. The electric charges deposited on the electrodes provide an electrolysis current for each chosen electrode. The formed device may be used as a biological sensor.

Abstract: Information recording medium, reading apparatus for said medium and processes for implementing the apparatus. According to the invention, the material constituting the recording layer (15) is photoconducting. The apparatus comprises in particular a microprobe (20) and a light source (26) capable of subjecting the recording layer to a lit or unlit state. The resulting variations in resistivity are used to determine whether the read zone is amorphous or crystalline.

Abstract: A method for assembling two parallel plates respectively forming the bottom and the face of a flat display screen including a degassing step of the plates and a vacuum burn-in step. The method includes the steps of subjecting a first plate to a burn-in step by electronic bombardment, moving under a vacuum the first plate so as to face a second plate, and assembling the two plates with a specific peripheral sealing joint.

Abstract: A cathode includes microtips for flat display screens, of the type including cathode conductors, between a substrate and a gate, the gate including holes inside meshes defined by the cathode conductors. An insulating layer, including wells facing the holes, is interposed between the cathode conductors and the gate. Microtips are deposited in the wells, onto a resistive layer. The cathode conductors are deposited over the resistive layer and are coated with an auxiliary insulating layer.

Abstract: A microtip cathode for flat panel display screens has a constant access resistance and includes a substrate (10), a resistive layer (19), at least one cathode conductor (13), an insulating layer (16), and a control gate (3). The microtip cathode further includes an auxiliary insulating layer (18) disposed between the cathode conductor (13) and the insulating layer (16) to suppress needle hole effects in the insulating layer (16).

Abstract: An electron collector having an anode constituted by a substrate (21, 40, 41) on which are deposited conductive strips or tracks (23, 43). A dielectric material layer is deposited on at least one of the edges of each conductive strip.

Abstract: A flat display screen has a cathode including microtips for electronic bombardment associated with a gate, an anode including phosphor elements, and an inter-electrode gap. The screen includes an apertured insulating plate defining the inter-electrode gap associated with means for maintaining the plate apart from the anode.

Abstract: A photolithographic method for patterning small diameter circles at a high resolution on a layer, comprises the steps of depositing a resist layer on said layer; depositing calibrated microspheres, opaque to a radiation, on the surface of the resist layer; and irradiating said resist layer with said radiation.