Abstract:
An object including at least one graphic element, including at least one at least partly transparent substrate, at least one face of which includes recesses forming a pattern of the graphic element filled with the at least one material, the face of the substrate being fixed to at least one face of at least one support by wafer bonding, the substrate and the support forming a monolithic structure.
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:
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 process for regulating the brightness of a microdot fluorescent screen and apparatus for performing this process. The screen is of the matrix type and is addressed by a scan of the rows, a pixel being formed at each row-column intersection. For an illuminated pixel, for a selection time T of the corresponding row, a quantity of charges is emitted by the associated microdots. The brightness is regulated during the selection time of each row by controlling the quantity of charges emitted by the microdots of each pixel to be illuminated, the charge quantity being identical for each pixel.
Abstract:
Each image point X.sub.ij of the matrix screen is defined by the intersection between a control row i having at least one electrode and a control column j having an even number of electrodes. In order to eliminate the coupling between the rows and columns, the voltage signals applied to the electrodes of the same control column cancel one another out in groups of two.
Abstract:
An object including at least one graphic element, including at least one at least partly transparent substrate, at least one face of which includes recesses forming a pattern of the graphic element filled with the at least one material, the face of the substrate being fixed to at least one face of at least one support by wafer bonding, the substrate and the support forming a monolithic structure.
Abstract:
A field emission device including a cathode, a porous insulating layer, of which the pores contain electron emitters, and a conductive layer as a gate layer.
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:
This invention relates to a method for making a thin layer starting from a wafer comprising a front face with a given relief, and a back face, comprising steps consisting of: a) obtaining a support handle with a face acting as a bonding face; b) preparing the front face of the wafer, this preparation including incomplete planarisation of the front face of the wafer, to obtain a bonding energy E0 between a first value corresponding to the minimum bonding energy compatible with the later thinning step, and a second value corresponding to the maximum bonding energy compatible with the subsequent desolidarisation operation, the bonding energy E0 being such that E0=α.E, where E is the bonding energy that would be obtained if the front face of the wafer was completely planarised, α is the ratio between the incompletely planarised area of the front face of the wafer and the area of the front face of the wafer if it were completely planarised; c) solidarising the front face of the wafer on the bonding face of the support handle, by direct bonding; d) thinning the wafer starting from its back face until the thin layer is obtained; e) transferring the thin layer onto a usage support, involving separation from the support handle.
Abstract:
A method for manufacturing a fluorescent display screen cathode including microtips, comprises a supporting plate bearing cathode conductors in meshed columns, a resistive layer bearing microtips, an insulating layer and a grid conductive layer in rows. The method comprises the step of simultaneously etching the three upper grid layer, insulating layer and resistive layer according to a single perforated pattern defining both the grid rows and the access resistance to the microtips through the resistive layer.