摘要:
The invention relates to a method of manufacturing optoelectronic devices including light-emitting diodes, including the steps of: a) forming a first integrated circuit chip including light-emitting diodes; b) bonding a second integrated chip to a first surface of the first chip; c) decreasing the thickness of the first chip on the side opposite to the first surface to form a second surface opposite to the first surface; d) bonding, to the second surface, a cap including a silicon wafer provided with recesses opposite the light-emitting diodes; e) decreasing the thickness of the second chip; f) decreasing the thickness of the silicon wafer before step d) or after step e), each recess being filled with a photoluminescent material; and g) sawing the structure obtained at step f) into a plurality of separate optoelectronic devices.
摘要:
A device for taking a sample of liquid by capillarity, including a channel for flow of the liquid delimited by two internal walls of the device between which a channel bottom extends, the distance separating the two internal walls decreasing in the direction of the channel bottom, the channel extending between a first collecting end, open onto outside of the device and configured to receive the liquid, and a second end, to enable the liquid to flow by capillarity along the channel bottom from the first end towards the second end. The channel includes, at the second end, a blocking structure to block the flow of liquid in the channel from the first end towards the second end.
摘要:
A semiconducting structure configured to emit electromagnetic radiation. The structure includes a first zone and a second zone with first and second types of conductivities respectively opposite to each other, the first and second zones being connected to each other to form a semiconducting junction. The first zone includes at least a first and a second part, the first and the second parts being separated from each other by an intermediate layer, as a spreading layer, extending approximately parallel to a junction plane along a major part of the junction. The spreading layer can cause spreading of carriers in the plane of the spreading layer.
摘要:
A polymer is obtained by polymerization of a polymerizable fluorescent monomer compound of 7-hydroxycoumarin having the following formula (I): G is a substituent including a polymerizable chemical group R, and optionally of at least one other polymerizable monomer. The polymer can be used as a sensitive material in an optical sensor.
摘要:
A neuron circuit is capable of producing a weighted sum of digitized input signals and applying an activation function to the weighted sum so as to produce a digitized activation signal as output. The circuit includes at least: one multiplier multiplying each input signal (x1 to xn) with a weight value (w1j to wnj), one accumulator accumulating the results of the multiplier so as to produce the weighted sum, and one activation unit executing the activation function. The activation unit comprises at least one shift unit and at least one saturation unit capable of approximating a non-linear activation function. The result of the approximated activation function is obtained by one or more arithmetic shifts applied to the weighted sum.
摘要:
Method for determining microorganism growth in a biological sample likely to contain microorganisms, said biological sample being contained in an analysis container, said analysis container being subjected to an incubation of a determined duration, said method comprising: acquiring a first plurality of initial images of the analysis container at a first acquisition time T1, before or during the incubation; acquiring a second plurality of final images of the analysis container at a second acquisition time T2, during or after the incubation; realigning each initial image of the first plurality of initial images acquired, with each corresponding final image of the second plurality of final images acquired; locating at least one potential microorganism growth zone in at least one image of the second plurality of images acquired; evaluating the content of the potential microorganism growth zone identified in order to determine the presence of microorganisms.
摘要:
A method to locate material bodies on an at least 2-dimensional occupancy grid G, having a first resolution stepsize RG, that includes a set of cells represented by vertices and segments connecting these vertices. The method uses a sensor for detecting an obstacle which is positioned at source point S, and includes at least the following steps: acquisition by the sensor of a measurement of the position of a material body detected at a point F; defining the coordinates of a point M by using a space discretized with the aid of a spatial stepsize δ which is finer than the resolution stepsize RG, initializing an integer, error parameter, and calculating the value of the error parameter for at least one first vertex of the cell of the current grid.
摘要:
A resonant sensor includes a proof body having a first and a second interface that can each come into contact with an external mechanical structure; two sensitive zones arranged between these two interfaces; a sensitive zone formed by a plate embedded in a frame secured mechanically to the interfaces, the plate able to resonate under the effect of local mechanical excitations produced at particular points by excitation transducers bearing the plate at several resonant frequencies, sensors picking up the resonant signals produced at the particular points, measurement means measuring the resonant frequency shifts of signals which are linear combinations of the resonant signals picked up, the shifts being a function of mechanical stresses induced by the forces and transmitted to the plate by the frame, the components of the torque of forces being determined from the resonant frequency shifts measured on the plates of the sensitive zones.
摘要:
A method to locate material bodies on an at least 2-dimensional occupancy grid G, having a first resolution stepsize RG, comprises a set of cells represented by vertices and segments connecting these vertices, the method using a sensor for detecting obstacles which is positioned at source point S, comprises at least the following steps: acquisition by the sensor of a measurement of the position of a material body detected at a point F; defining the coordinates of a point M by using a space discretized with the aid of a spatial stepsize δ which is finer than the resolution stepsize RG, initializing an integer, error parameter, representative of the position of at least one coordinate of a vertex of the cell containing the source point S in the discretized space with respect to a path defined in the observation space, calculating the value of the error parameter for at least one first vertex of the cell of the current grid, by carrying out additions or subtractions of integer numbers, establishing the list {ci} of the cells situated on the path [SF] or situated a predefined distance from the path [SF].
摘要:
A method for producing an assembly of particles bound by a substrate, including: making a compact film of solid particles floating on a carrier liquid, the solid particles potentially holding objects between them; spraying particles onto a face of the compact film opposite to the one immersed in a carrier liquid, to create a substrate-forming-skin adhering to the solid particles; and extracting an obtained assembly outside the carrier liquid.