摘要:
A cache coherence management system includes: a set of directories distributed between nodes of a network for interconnecting processors including cache memories, each directory including a correspondence table between cache lines and information fields on the cache lines; and a mechanism updating the directories by adding, modifying, or deleting cache lines in the correspondence tables. In each correspondence table and for each cache line identified, at least one field is provided for indicating a possible blocking of a transaction relative to the cache line considered, when the blocking occurs in the node associated with the correspondence table considered. The system further includes a mechanism detecting fields indicating a transaction blocking and restarting each transaction detected as blocked from the node in which it is indicated as blocked.
摘要:
A method of producing a microelectronic device in a substrate comprising a first semiconductor layer, a dielectric layer and a second semiconductor layer, comprising the following steps: etching a trench through the first semiconductor layer, the dielectric layer and a part of the thickness of the second semiconductor layer, thus defining, in the first semiconductor layer, one active region of the microelectronic device, ionic implantation in one or more side walls of the trench, at the level of the second semiconductor layer, modifying the crystallographic properties and/or the chemical properties of the implanted semiconductor, etching of the implanted semiconductor such that at least a part of the trench extends under a part of the active region, —filling of the trench with a dielectric material, forming an isolation trench surrounding the active region and comprising portions extending under a part of the active region.
摘要:
An electronic device including at least:a first HEMT transistor,bias means able to at least reverse bias the first HEMT transistor by applying an electric voltage VSD of a positive value between a source of the first HEMT transistor and a drain of the first HEMT transistor,and wherein the first HEMT transistor is able to be ON when a value of an electric voltage VGD between a gate of the first HEMT transistor and the drain of the first HEMT transistor is higher than a value of a threshold voltage Vth of the first HEMT transistor,the electronic device having, during a forward biasing, a behaviour similar to that of a forward biased or reverse biased Zener diode.
摘要:
The invention relates to a receiver of a signal built as successive frames, comprising a plurality of antennas, a signal receiving chain associated with each antenna, and a power amplifier on each receiving chain to which is applied a gain set point provided by a gain control unit characterized in that it comprises an antenna selecting unit configured to select one antenna from the plurality of antennas, and a time synchronizing unit configured to determine the frame start and end times in the signal received by the selected antenna. The antenna selecting unit is further configured to assess the gain set point of each receiving chain and to eliminate from the selection each antenna associated to a receiving chain which gain set point in not in a steady state.
摘要:
This processing method provides the ability to process a volume mode with an object intended to be added to or subtracted from said model. The volume model includes points arranged according to a spatial grid in a first reference system, each point being assigned an intensity value. The object has points positioned in a second reference system that is distinct from the first reference system.The method includes the calculation, for each point of the object, of an image point in the first reference system using a transfer function.The method further includes the modification of the intensity of points of the volume model by applying a correction function associated with each image point, the value of the correction function at a point of the volume model being dependent on the position of said point relative to said image point with which said correction function is associated.
摘要:
Method for producing a substrate comprising at least one getter material arranged on the walls of at least one blind hole, comprising at least the steps of:etching the blind hole through a first face of the substrate,depositing a continuous layer of getter material on the whole of the first face of the substrate and at least on the side walls of the blind hole,etching part of the layer of getter material located on the first face of the substrate such that said first face of the substrate is no longer covered by the getter material,in which the step of etching part of the layer of getter material comprises the implementation of an etching by ion beam machining, or chemical-mechanical planarization or polishing.
摘要:
An encapsulation structure comprising at least: a hermetically sealed cavity in which a micro-device is encapsulated, a substrate of which one face delimits one side of the cavity, at least two trenches formed through said face of the substrate, the interior volumes of each of the trenches communicating together, first portions of getter material covering at least in part side walls of the trenches without entirely filling the trenches, and completely covering the trenches at said face of the substrate, an opening formed through one of the first portions of getter material or through the substrate and making the interior volumes of the trenches communicate with an interior volume of the cavity.
摘要:
The invention relates to a multiple access method to a frequency band of a communication channel of a communication network with carrier sensing and collision avoidance, said frequency band being broken down into a set of sub-bands (SB0, SB1, . . . , SBi, . . . , SBn) of the communication channel, characterised in that it comprises at a source node, after it has been detected that the communication channel is available, the transmission to a destination node of several request to send messages on the communication channel (RTS NS0, RTS NS1), each of said messages being sent on a sub-band of the communication channel.
摘要:
An assembly converting thermal energy into electrical energy including: at least one temperature sensitive bimetallic strip arranged in a space delimited by a hot source and a cold source facing each other, the bimetallic strip extending along a longitudinal axis; at least one suspended element fixed in movement to the sensitive element and extending laterally from the sensitive element and including a free end; and at least one piezoelectric element suspended from a part fixed relative to the sensitive element and vibrated by the suspended element such that it is vibrated when the bimetallic strip changes configuration and the suspended element comes into contact with the piezoelectric element, the piezoelectric element being located outside the space defined between the bimetallic strip and the hot source and outside the space between the bimetallic strip and the cold source.
摘要:
The present invention relates to a method for depositing nanoparticles (NPs) on a nanostructured metal oxide (NSMO) substrate, characterised in that it comprises the steps of: a) functionalising the NSMO substrate with a bifunctional coupling agent carrying a first function, this first function being a phosphonic function that forms a bond with the NSMO, and a second function that is intended to form a bond with a nanoparticle; and b) grafting the nanoparticles via a bond with the second function of the coupling agent. The invention also relates to a stack comprising a nanostructured metal oxide substrate covered with nanoparticles by way of a bifunctional coupling agent carrying a first function, this first function being a phosphonic function and forming a bond with the NSMO, and a second function that is intended to form a bond with a nanoparticle.The invention is applicable to the field of microelectronics and especially to the production of electrodes and the production of photovoltaic panels.