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44results about How to "Minimize the impact on reliability" patented technology
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Wireless sensor network early warning method and system based on clustering compressed sensing
InactiveCN105636094AImprove real-time performanceImprove fault toleranceNetwork topologiesFault toleranceGeolocation
The invention discloses a wireless sensor network early warning method and system based on clustering compressed sensing. The method comprises the following steps: S1) calculating optimal cluster number and optimum cluster head space distribution by a gateway according to geographic position and an energy consumption model of each sensor node in a wireless sensor network; S2) obtaining monitoring data in a cluster, and converting the monitoring data into binary reading and a binary bit string sequence according to a threshold value; S3) carrying out dense random projection and sparse random projection thereon to obtain a compressed sensing sequence, and carrying out reconstruction on the compressed sensing sequence to obtain a reconstructed sequence; S4) carrying out judgment according to estimated value of the reconstructed sequence, and summarizing the number of effective neighbor nodes executing a majority vote method; and S5) if the number of the effective neighbor nodes is larger than a preset threshold value, determining that the node has an abnormal event. Real-time performance and fault tolerance of the monitoring method can be improved; influence of the fault nodes on abnormal event detection reliability is reduced; and network energy consumption in the data collection process can be reduced.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Quick fault-tolerance detection method for monitoring abnormal event by wireless sensor network
InactiveCN102612065AMinimize the impact on reliabilityImprove timelinessNetwork topologiesFault toleranceWireless mesh network
The invention relates to a quick fault-tolerance detection method for monitoring an abnormal event by a wireless sensor network, and belongs to the technical field of the Internet of things. The sensor network is formed by self-organizing a large number of low-end sensor nodes; each node has finite power energy, communication capacity, calculation capacity and storage capacity and is generally arranged in an unattended severe environment; the possibility that each node makes a mistake is extremely high; and if the node makes a mistake, the network probably misjudges an event in a monitoring region. According to the method, the states of the nodes are adaptively managed by using confidence level, and failed nodes are removed from the sensor network, so that the influence of the failed nodes on abnormal event detection is reduced; and furthermore, a sliding window matching mechanism is used for detecting the change tendency of node monitoring data, so that whether the nodes can detect the abnormal event is forecasted. A simulation test shows that the reliability and the timeliness of detecting the abnormal event are improved, and the method can be widely applied to the fields of safety production monitoring, geological disaster monitoring, environment pollution monitoring and the like.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
High power LED flip-chip and its manufacturing method
ActiveCN1967883AHigh thermal conductivityImprove reflectivitySemiconductor devicesReflective layerSilicon
The invention relates to a high-power LED face-down chip, formed by P-N electrode extending sheet and silicon substrate with reflective layer, wherein the P-N electrodes have inactivate layer between; the characteristic semi-conductive silicon substrate has electric insulated layer above; the metal reflective layer is above the insulated layer; the P-N electrode extending sheet and the silicon substrate with reflective layer are face-down welded to form high-power LED face-down chip. And its production comprises that: on silicon substrate, using PECVD to deposit one layer of P-N electrode electric insulated layer as SiO2 or Si3N4 insulated layer at 50-100nm thick; then using magnetic-control splash or electron beam to evaporate one layer of metal reflective layer at 200-300nm made from TiAl or TiAg. The invention can improve the lighting efficiency and radiation efficiency.
Owner:EPILIGHT TECH +1
Non-contact human-computer interaction method and system
InactiveCN102455849AReduce complexityLow costInput/output for user-computer interactionGraph readingFar distanceOperating instruction
The invention discloses a non-contact human-computer interaction method and system. The method comprises the following steps of: emitting and receiving light, extracting and processing signals, and decoding and sending operating instructions. The system comprises an emitting device, a receiving device and a control device. An interaction function is realized by instructing parts to do some simple actions, and near-distance accurate operation is not required, so that far-distance human-computer interaction is realized to a certain extent. The method and system disclosed by the invention are particularly applicable to handheld electronic equipment.
Owner:GALAXY HUIHAI TECH SHENZHEN
Preparation method for polycrystalline silicon groove grid and capable of avoiding holes
ActiveCN103035501AImproved gate fill capabilityMinimize the impact on reliabilitySemiconductor devicesFill powerPhotoresist
The invention discloses a preparation method for polycrystalline silicon groove grid and capable of avoiding holes. The preparation method comprises the following steps of (1) defining a deep groove with dry plasma etching on a silicon base, (2) growing grid oxidation film on an entire silicon slice, (3) depositing polycrystalline silicon on the grid oxidation film, (4) coating and exposing photoresist by using deep groove etching layout, (5) etching the polycrystalline silicon in the deep groove and enabling the cavity to be exposed and to form a slope morphology through the dry etching procedure which produces high by-product polymer, (6) removing the photoresist, (7) dry back etching the polycrystalline silicon in a dry and return method and enabling the polycrystalline silicon to be formed as a V-shaped morphology, and (8) depositing the polycrystalline silicon a second time to fill the deep groove. The method can improve the filling power of the polycrystalline silicon groove grid and avoid the forming of cavities in filling polycrystalline silicon in the deep groove, and further improve the reliability of a component.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP
Control compensation system and control method of quality of electric energy of magnetic suspension train
InactiveCN101986497AAddresses susceptibility to grid background harmonicsAchieve governanceActive power filteringReactive power adjustment/elimination/compensationCompensation pointHigher order harmonics
The invention relates to a control compensation system of quality of electric energy of a magnetic suspension train, which comprises a passive filter bank and an active power filter which is connected with the passive filter bank in series through a transformer; a bypass inductor is also connected on the transformer in parallel; and the system also comprises a high-order passive filter which is connected with the passive filter bank and the active power filter in parallel. The active power filter is controlled into a reverse harmonic current source to enable the fundamental reactive current to mainly pass through the inductor, the transformer and the inductor reduce the capacity of the active power filter, the active power filter and the passive filter bank together filter the harmonics, and the high-order passive filter mainly filters the high-order harmonics which can not be filtered by the active power filter and the passive filter bank. The compensation system is connected to the 20kV side of a bus in a tractive power supply system of a high-speed magnetic suspension train to shorten the distance between a compensation point and a point of common coupling (PCC), thereby shortening the length of a coupling line, further weakening the amplification effect on harmonics and voltage fluctuation by the circuit, and improving the quality of electric energy.
Owner:SHANGHAI MAGLEV TRANSPORTATION DEVELOPMENT CO LTD +1
Tool magazine reliability test bench tool change position adaptive centering adjustment device and method
ActiveCN105372091AHigh precisionImprove real-time performanceStructural/machines measurementEngineeringChange positions
A tool magazine reliability test bench tool change position adaptive centering adjustment device and method belong to the mechanical adaptive adjusting field, and aim to solve the problems of low adjusting precision and complex operation and the time-consuming and labor-consuming problems in the prior art. The device comprises a measurement taper shank, an automatic mechanical detection device and a main-shaft bottom feeding unit; and a drive gear and a driven gear in the automatic mechanical detection device are integrally disposed in a tool-grabbing disc, a servo motor A drives the drive gear to rotate, a positioning adjusting rod is connected with the lower end face of a driven gear shaft through an adjusting screw, a measuring rod is connected with the upper part of the positioning adjusting rod through a positioning pin, the positioning pin is located on the axis of the driven gear shaft, a force sensor is fixed to the lower part of the positioning adjusting rod, and the force sensor is connected to the lower part of the measuring rod through a connecting spring. The measurement taper shank is coaxially installed on a mechanical main shaft, the tool-grabbing disc of the automatic mechanical detection device is clamped through a manipulator, and a control unit of a tool magazine reliability test bench controls a motion of the main-shaft bottom feeding unit according to a signal acquired by the force sensor.
Owner:JILIN UNIV
DCI transmission method and device, equipment and storage medium
InactiveCN110034842AControl overheadGuaranteed scheduling flexibilityReceiver specific arrangementsTransmission format adaptationComputer hardwareBase station
The embodiment of the invention discloses a DCI transmission method and device, equipment and a storage medium. The method comprises the following steps: according to an alignment rule, aligning payload size of a DCI format in a DCI format set configured for terminal UE by a base station; wherein the alignment rule comprises aligning the DCI format in the DCI format set with the payload size in abit filling manner according to a threshold value and the aligned DCI format; and the base station transmitting the DCI to be sent to the UE according to the aligned paraload size.
Owner:CHINA MOBILE COMM LTD RES INST +1
Heterogeneous controller cluster service active transition system and method based on abnormal perception
ActiveCN110225033AOvercome the problem of too high couplingImprove universalityData switching networksState parameterComputer science
The invention discloses a heterogeneous controller cluster service active scheduling system and method based on abnormal perception. The system comprises a state acquisition module, a communication agent module, an abnormal state perception module and a service active scheduling module. The method comprises the following steps: the communication agent module establishes connection with the controller and the switch; the state acquisition module acquires operating environment state parameters and load state parameters of the controller; the communication agent module obtains the flow table message issued by the controller and calculates the message credibility; the abnormal state sensing module updates abnormal parameters of the controller; the abnormal state sensing module judges whether the controller is abnormal or not; and the service active scheduling module selects the alternative controller and actively schedules the service of the abnormal controller. The method has high universality and independence, and when the controllers in the heterogeneous controller cluster are abnormal, the abnormal controllers can be timely and accurately discovered, and active scheduling can be carried out on the services of the controllers.
Owner:XIDIAN UNIV
GaN-based HEMT device based on substrate conductive hole and preparation method of GaN-based HEMT device
PendingCN113394281AAvoid back etchImprove yieldSemiconductor/solid-state device manufacturingSemiconductor devicesEtchingConductive materials
The invention provides a GaN-based HEMT device based on a substrate conductive hole and a preparation method of the GaN-based HEMT device. According to the method, a deep groove is formed in a substrate, and filled with a conductive material layer to form a conductive hole, and a source deep hole is prepared in an epitaxial layer structure, so that a source metal is connected to the conductive hole; after the front surface structure of the GaN-based HEMT device is manufactured, thinning is carried out to expose the conductive hole from the back surface of the substrate; and therefore, back etching of the substrate in the later period is avoided, damage of etching to the front surface structure of the device is avoided, the yield of the device is effectively improved, and production equipment and cost are saved. After the preparation of the front surface structure of the device is completed, complicated deep etching, electroplating and other process steps are not needed any more, so that the influence of the subsequent process on the reliability of the device can be reduced.
Owner:上海新微半导体有限公司
Lateral variable doping terminal structure and design method thereof
ActiveCN113658996AMinimize the impact on reliabilityImprove pressure resistanceCAD circuit designSpecial data processing applicationsSurface oxidationMaterials science
The invention provides a lateral variable doping terminal structure and a design method thereof. The terminal structure comprises a passivation layer, a first conductive type lightly doped drift region, and an anode region sequentially distributed from the surface to the bottom of the terminal structure. The terminal structure further comprises a medium-doped second conduction type main junction region, a medium-doped second conduction type transition region, a medium-doped second conduction type piecewise linear VLD terminal region and a heavy-doped first conduction type floating cut-off ring which are sequentially arranged on the upper portion of the interior from left to right, wherein the medium-doped second conduction type piecewise linear VLD terminal region is composed of two or more sections of regions of which the impurity concentration is linearly decreased from a main junction to a terminal tail end. The terminal area adopting the piecewise linear VLD region can obtain a better VLD terminal surface electric field, so that the withstand voltage of the device can be improved, and the influence of terminal surface oxide layer charges on the reliability of the VLD terminal is reduced.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
Optical fiber output large-power semiconductor laser module
InactiveCN105161972AImprove coupling efficiencyReduce reliability impactLaser detailsSemiconductor laser structural detailsHeat sinkSemiconductor laser theory
The invention discloses an optical fiber output large-power semiconductor laser module. The optical fiber output large-power semiconductor laser module comprises a semiconductor laser module to be coupled, metalized optical fibers and an optical fiber support. The semiconductor laser module to be coupled comprises a metal tube shell provided with a cavity body, and a welding support, an AlN heat sink and a laser chip which are successively fixed in the cavity body by welding. The metalized optical fibers comprise an output optical fiber and a self-focusing lens optical fiber. The self-focusing lens optical fiber comprises a self-focusing optical fiber and a lens arranged on one end surface of the self-focusing optical fiber, and the other end surface of the self-focusing optical fiber is welded with the output optical fiber. The aperture of the self-focusing lens optical fiber is larger than that of the output optical fiber, and the aperture of the self-focusing lens optical fiber is matched with the width of a luminous zone of the laser chip. The optical fiber support is fixed to the welding support by welding. The self-focusing lens optical fiber is fixed to the optical fiber support by welding. The self-focusing lens optical fiber and the laser chip are coupled and aligned. According to the invention, the aperture of the self-focusing optical fiber is matched with the width of the luminous zone of the laser chip, and all components in the laser module are fixed in a non-glue welding manner.
Owner:THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP
Crawler belt tensioning device and crawler belt type engineering machinery
PendingCN111361652AAvoid damageMinimize the impact on reliabilityEndless track vehiclesCylinder blockEngineering machiner
The invention provides a crawler belt tensioning device and crawler belt type engineering machinery, and relates to the technical field of engineering machinery. The crawler belt tensioning device comprises a cylinder body, a pull rod, a support, an ejector rod, a spring and an elastic buffering piece. One end of the cylinder body is connected to the pull rod; the support is slidably connected tothe pull rod and used for being connected with a guide wheel of a tensioning crawler; the end, away from the pull rod, of the cylinder body is connected to the ejector rod; and the ejector rod can extend out relative to the cylinder body to abut against a chassis limiting plate of the crawler-type engineering machine. The cylinder body is sleeved with the spring, one end of the spring is connectedto the cylinder body, the other end of the spring is connected to the support, the buffering piece is connected to the spring, and at least one part of the buffering piece is located between two adjacent coils of the spring. The crawler-type engineering machinery comprises the crawler belt tensioning device. The crawler belt tensioning device can reduce damage to the spring and reduce the influence on the reliability of the device and crawler belt type engineering machinery.
Owner:SANY HEAVY MACHINERY
Axial force automatic balancing device, water pump and air conditioner
PendingCN109281861AMinimize the impact on reliabilityGuaranteed uptimePump componentsPumpsImpellerAxial force
The invention discloses an axial force automatic balancing device, a water pump and an air conditioner. The axial force automatic balancing device comprises a pump body, an impeller arranged in the pump body and a pump cover arranged on the pump body; the impeller comprises a rear cover plate and a rear opening ring arranged on the rear cover plate, an annular groove in clearance fit with the rearopening ring is formed in the pump cover, and a balance cavity is formed among the rear cover plate of the impeller, the pump cover and the rear opening ring; and a balance hole communicating with the balance cavity is formed in the rear cover plate of the impeller, an annular boss is arranged on the inner surface of the pump cover, and part of the balance hole is covered with the annular boss. According to the axial force automatic balancing device, the impeller can reach a balance point during motion through the structure, so that automatic balancing of axial force is achieved, the influence of axial force on the reliability of the water pump can be reduced, and normal opening of the water pump is ensured.
Owner:GREE ELECTRIC APPLIANCES INC
Air conditioning system
ActiveCN104748224AReduce the impactMinimize the impact on reliabilitySpace heating and ventilation safety systemsLighting and heating apparatusEngineeringFour-way valve
The invention provides an air conditioning system. The air conditioning system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way valve and drying and filtering assemblies, wherein a circulating loop is formed by connecting of the compressor, the indoor heat exchanger, the outdoor heat exchanger and the four-way valve through a pipeline. External connectors are arranged on the pipeline. The drying and filtering assemblies are arranged on the pipeline through the external connectors in a series mode. According to the air conditioning system, by arranging the external connectors on the pipeline of the circulating loop, the drying and filtering assemblies can be arranged on the pipeline through the external connectors in the series mode, during the operating process of the air conditioning system, impurities and water in the pipeline can be automatically cleaned away by the drying and filtering assemblies, and the influence exerted on the reliability of the system due to engineering installation is lowered.
Owner:GREE ELECTRIC APPLIANCES INC
Multiple-underwater-robot autonomous task allocation method based on space-based center
ActiveCN112859887AOvercome the disadvantage of heavy computing load on nodesOvercome the disadvantage of large computational loadAltitude or depth controlDistributed decisionReal-time computing
The invention belongs to the technical field of multi-underwater robot task allocation, and relates to a multiple-underwater-robot autonomous task allocation method based on a space-based center. The method comprises the following steps of: a semi-submersible underwater robot broadcasts target information to an autonomous underwater robot executing a search task; and the autonomous underwater robot autonomously allocates a target task according to the cost and a task value normalization function. Compared with a traditional centralized multi-autonomous underwater robot task allocation method, the method of the invention employs a distributed calculation method, therefore, the defect that the calculation load of a traditional centralized task allocation center node is large is overcome. The application range of the method of the invention is wide, the reliability and robustness of multi-autonomous underwater robot task allocation are improved. According to the method, the distributed decision making technology is used for task allocation of multiple autonomous underwater robots, the handling capacity for dealing with sudden task events is enhanced, and the efficiency of autonomous task allocation of the multiple autonomous underwater robots is improved.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Electronic cigarette for which MEMS sensor is adopted
PendingCN108308709AMinimize the impact on reliabilityBig spaceTobacco devicesSignal processing circuitsElectronic cigarette
The invention provides an electronic cigarette for which an MEMS sensor is adopted. The electronic cigarette comprises the MEMS sensor which is used for smoking detection, a signal processing circuit,a control circuit and a smog generating device, wherein the MEMS sensor detects smoking air pressure of a user and outputs a detection signal, the signal processing circuit is provided with a signalinput end and a signal output end, the signal input end is connected with the MEMS sensor, the control circuit is connected with the signal output end of the signal processing circuit and generates acontrol signal according to an output signal of the signal processing circuit, and the smog generating device is connected with the control circuit. The electronic cigarette has the advantages that byusing the MEMS sensor to replace a traditional electret membrane, a larger space is provided with other modules like a lithium battery in an electronic cigarette pole, and meanwhile, the influence ofthe high-temperature and high-humidity environment on the reliability of the electronic cigarette can also be reduced when the traditional electronic cigarette is in use.
Owner:ZILLTEK TECH SHANGHAI +1
Liquid crystal display assembly and liquid crystal display
InactiveCN111221187AAccelerated extractionDoes not change thicknessNon-linear opticsLiquid-crystal displayDisplay device
The invention relates to a liquid crystal display assembly and a liquid crystal display. The liquid crystal display assembly comprises a first glass substrate, a liquid crystal layer and a second glass substrate which are stacked, and is characterized by further comprising a first ITO conducting layer and a second ITO conducting layer which are arranged on the two opposite faces of the first glasssubstrate respectively; a third ITO conducting layer and a fourth ITO conducting layer which are arranged on the two opposite faces of the second glass substrate respectively, wherein the two opposite faces of the liquid crystal layer are attached to the second ITO conducting layer and the third ITO conducting layer respectively; a plurality of pieces of conductive cloth which are respectively and correspondingly arranged on the first ITO conductive layer, the second ITO conductive layer, the third ITO conductive layer and the fourth ITO conductive layer; and an electrostatic protection device which is in contact with the conductive cloths on the first ITO conductive layer, the second ITO conductive layer, the third ITO conductive layer and the fourth ITO conductive layer respectively toform a Faraday cage type structure for leading the static electricity to a ground end.
Owner:WGTECH JIANGXI
Wind power generation system
ActiveCN108953064AImprove wind energy utilizationReduce rotation resistanceFinal product manufactureMachines/enginesWind forceAutomotive engineering
The invention discloses a wind power generation system, and belongs to the field of wind power generation. The wind power generation system comprises a rack, a generator unit and blades, wherein the generator unit is arranged on one side of the rack, and the rack and the generator unit are in transmission through an inclined gear; and a transmission box is arranged above the rack, the blades are arranged on the two sides of the upper portion of the transmission box, each blade is in transmission with the transmission box through a bevel gear, and the blade on each side comprises two S-shaped blades which are symmetrically distributed in a central symmetry manner. According to the wind power generation device, the defects that in the prior art, the wind power utilization rate of wind powergeneration is low, and the production cost is high are overcome; and the wind power generation system is low in cost, high in applicability, simple in structure, convenient to manufacture and maintainand wide in application range.
Owner:马鞍山学院
A safety limit control method for focusing mechanism
ActiveCN107678122BMinimize the impact on reliabilityDoes not involve processingMountingsControl systemControl engineering
A safety limit control method for a focus adjustment mechanism, in which a limit switch is installed at the left and right limit positions of at least one stroke interval of the focus adjustment mechanism, and the output ends of all the limit switches are short-circuited to lead out a "limit status feedback" signal , used to drive the GPIO pin of the control system processor and one signal input pin of the dual optocoupler chip; the control system processor receives the "limit status feedback" signal and outputs the "software power-on enable" signal; " Both the "limit status feedback" signal and the "software power-on enable" signal are input to the signal input terminal of the dual-channel optocoupler chip, and are isolated and output by the dual-channel optocoupler chip, and then pulled down to the reference ground of the power supply through a resistor, and then output "Drive circuit power-on enable" signal; when the "drive circuit power-on enable" signal is high level, it provides power to the motor drive circuit; otherwise, cuts off the power supply to realize the safety limit of the focusing mechanism.
Owner:北京长峰科威光电技术有限公司
Installation method of high pressure air bottle assembly for drilling ship
ActiveCN109398602BMinimize the impact on reliabilityHull interior subdivisionVessel partsMarine engineeringWater vapor
The invention discloses an installation method for a high-pressure air cylinder assembly of a drilling ship. The drilling ship has a main deck and a lower deck, and an accommodating compartment is formed between the main deck and the next deck. The high-pressure air bottle assembly is arranged in the accommodating cabin through the base. It includes a plurality of high-pressure air bottles, and the high-pressure air bottles on the next deck are pressed on the base; the high-pressure air bottles on the next deck are correspondingly pressed on the upper layer of high-pressure air bottles; the tail ends of the high-pressure air bottles have vent. The installation method includes the following steps: setting the base on the next deck; setting the multi-layer high-pressure air cylinders on the base in turn; It communicates with the main pipeline; the base forms a first inclination angle with the next deck, and the first inclination angle is greater than 1° and less than 3°. This installation method can reduce the impact of water vapor on the reliability of the target device.
Owner:SHANGHAI SHIPYARD
mask assembly
ActiveCN106801215BAvoid accumulationHigh strengthVacuum evaporation coatingSputtering coatingFiberCarbon fibers
The invention provides a mask assembly. The mask assembly comprises a carbon fiber material layer provided with a first hollow region, and a first metal layer which is arranged on the surface of at least one side of the carbon fiber material layer, wherein the first metal layer is provided with a second hollow region corresponding to the first hollow region. The carbon fiber material layer has the characteristics of low expansibility and high strength, so that the influence on the reliability of the mask assembly due to a temperature change in a process is reduced during application of the mask assembly, and a size change, which is caused by the temperature change, of a hollow pattern in the mask assembly is also reduced; meanwhile, the first metal layer enables the mask assembly to have a smooth surface, so that stacking of materials on the surface of the mask assembly in a preparation process of evaporation, sputtering or printing is avoided, and the subsequent scraping procedure for removing the stacked materials and damage caused by the scraping procedure are eliminated; and therefore, the mask assembly simultaneously meets the requirements for high strength and high precision.
Owner:ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
A battery compartment and battery box for battery-swappable electric vehicles
ActiveCN107512167BMinimize the impact on reliabilityGuaranteed stabilityElectric propulsion mountingElectric vehicle charging technologyHydraulic motorElectrical battery
Owner:SHANGHAI MAKESENS ENERGY STORAGE TECH CO LTD
Packaging structure and packaging method of semiconductor chip
PendingCN114156238AGuaranteed functionGuaranteed service lifeSemiconductor/solid-state device detailsSolid-state devicesSemiconductor chipSemiconductor package
The invention relates to the technical field of semiconductor packaging, and discloses a packaging structure and a packaging method of a semiconductor chip. The packaging structure of the semiconductor chip comprises a wafer, an insulation structure and a conductive part. A functional area and electrodes are arranged on the first surface of the wafer, the electrodes are distributed at intervals in the circumferential direction of the functional area, and the side walls, away from the functional area, of the electrodes are obliquely arranged; the insulating structure covers the first surface, one side of the insulating structure facing the wafer is provided with an accommodating space, the functional area is arranged between the accommodating space and the first surface, and the side wall of the insulating structure is obliquely arranged and is coplanar with the side wall of the electrode away from the functional area to form a cutting slope inclining towards the middle of the insulating structure; and the conductive part covers the cutting inclined surface and is electrically connected with the electrode, and the conductive part extends to the end surface, opposite to the wafer, of the insulating structure along the outer contour of the insulating structure. According to the invention, the conductive part is of a planar structure on the side wall of the chip, so that the number of inflection points on the conductive part is reduced, and the structural strength and durability of the conductive part are ensured.
Owner:苏州科阳半导体有限公司
A method for preparing a polysilicon trench gate avoiding voids
ActiveCN103035501BImproved gate fill capabilityMinimize the impact on reliabilitySemiconductor devicesFill powerPhotoresist
The invention discloses a preparation method for polycrystalline silicon groove grid and capable of avoiding holes. The preparation method comprises the following steps of (1) defining a deep groove with dry plasma etching on a silicon base, (2) growing grid oxidation film on an entire silicon slice, (3) depositing polycrystalline silicon on the grid oxidation film, (4) coating and exposing photoresist by using deep groove etching layout, (5) etching the polycrystalline silicon in the deep groove and enabling the cavity to be exposed and to form a slope morphology through the dry etching procedure which produces high by-product polymer, (6) removing the photoresist, (7) dry back etching the polycrystalline silicon in a dry and return method and enabling the polycrystalline silicon to be formed as a V-shaped morphology, and (8) depositing the polycrystalline silicon a second time to fill the deep groove. The method can improve the filling power of the polycrystalline silicon groove grid and avoid the forming of cavities in filling polycrystalline silicon in the deep groove, and further improve the reliability of a component.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP
High power LED flip-chip and its manufacturing method
InactiveCN100483755CHigh thermal conductivityImprove reflectivitySemiconductor devicesEngineeringReflective layer
Owner:EPILIGHT TECH +1
An automatic glaze spraying system for toilet body and its positioning method
ActiveCN110524697BImprove robustnessPrecise positioningProgramme-controlled manipulatorImage enhancementMultiple sensorProcess engineering
The invention discloses an automatic glaze spraying system for a toilet body, which includes a positioning workstation, a conveying line module and an automatic glaze spraying workstation, wherein: the positioning workstation adopts a multi-sensor data fusion algorithm to accurately place the toilet body on body tray and send the position information and 3D information of the toilet body to the automatic glazing workstation for processing; the conveying line module sequentially positions the body through the positioning workstation and the automatic glazing workstation, and automatically , transported to the next processing link; the object-level database in the automatic glazing workstation stores the 3D model of the toilet body, and the automatic glazing workstation uses the glazing robot to Perform automatic glaze spraying. The invention improves the scientificity of the glaze spraying method of the glaze spraying robot, realizes the automatic glaze spraying link, greatly improves the quality of the ceramic glaze spraying, reduces the production tempo, and improves the production efficiency.
Owner:GUANGDONG UNIV OF TECH
High pressure air bottle assembly mounting method for drilling ship
ActiveCN109398602AMinimize the impact on reliabilityHull interior subdivisionVessel partsEngineeringHigh pressure
The invention discloses a high pressure air bottle assembly mounting method for a drilling ship. The drilling ship has a main deck and a first lower deck, wherein an accommodation compartment is formed between the main deck and the first lower deck, a high pressure air bottle assembly is arranged in the accommodation compartment through a base, the high pressure air bottle assembly is a multi-layer arrangement mode, each layer includes multiple high pressure air bottles, the layer of high pressure air bottles close to the first lower deck are arranged on the base in a pressed mode, the layer of high pressure air bottles away from the first lower deck are correspondingly arranged on the upper layer of high pressure air bottles in a pressed mode, and tail ends of the high pressure air bottles have release ports. The mounting method comprises steps that the base is arranged on the first lower deck; the multiple layers of high pressure air bottles are sequentially arranged on the base; first ends of multiple columns of high pressure air bottles are communicated with multiple pipelines in one-to-one correspondence, and the multiple pipelines are communicated with a main pipeline; the base and the first lower deck form a first inclination angle, and the first inclination angle is greater than 1 DEG and is smaller than 3 DEG. The mounting method is advantaged in that influence of steam on reliability of target equipment can be reduced.
Owner:SHANGHAI SHIPYARD
floating equipment platform
ActiveCN111114702BFlexible execution of various scientific research tasksMinimize the impact on reliabilityWatercraft hull designPropulsion power plantsHydraulic cylinderEngineering
The invention discloses a floating equipment platform on water. The present invention includes No. 1 ballast tank, No. 2 ballast tank, No. 3 ballast tank, No. 4 ballast tank, propulsion cabin, No. 6 ballast tank, wave energy generating cabin and multi-layer deck from the beginning to the end. The No. 2 ballast tank is divided into the No. 2 top ballast tank and the No. 2 bottom ballast tank, and the No. 3 ballast tank is divided into the No. 3 top ballast tank, the No. 3 bottom ballast tank, and the No. 3 left ballast tank. tank and No. 3 right ballast tank. The propulsion cabin is provided with a propulsion device; the propulsion device includes a tunnel propeller, a retractable propeller and a battery pack. A wave energy generating device is arranged in the wave energy generating cabin, and the wave energy generating device includes a piston rod, a vibrator, and a hydraulic cylinder. The present invention adopts the propulsion mode of the combination of electric-driven tunnel thrusters and telescopic thrusters, which can not only realize autonomous navigation, but also effectively avoid the interference brought by the propellers to the experiment, and set up multiple ballast tanks, which can be more stable The realization of ship rotation operation.
Owner:ZHEJIANG UNIV
System and method for active transition of heterogeneous controller cluster services based on exception perception
ActiveCN110225033BOvercome the problem of too high couplingImprove universalityData switching networksComputer scienceOperating environment
A heterogeneous controller cluster service active scheduling system and method based on abnormality perception. The system includes a state collection module, a communication agent module, an abnormal state perception module, and a service active scheduling module. The steps of the method are: the communication agent module establishes a connection with the controller and the switch; the state collection module collects the operating environment state parameters and the load state parameters of the controller; The abnormal state sensing module updates the abnormal parameters of the controller; the abnormal state sensing module judges whether the controller is abnormal; the active business scheduling module selects a candidate controller and actively schedules the abnormal controller business. The invention has high universality and independence, and can timely and accurately discover and actively schedule its business when the controller in the heterogeneous controller cluster is abnormal.
Owner:XIDIAN UNIV
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