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Power supply module
ActiveCN101567627AReduce areaReduce the number of metal layersVolume/mass flow measurementApparatus without intermediate ac conversionInductorInductance
The invention relates to a power supply module which comprises an inductance circuit, a switch circuit, a check driving circuit and a controller, wherein the inductance circuit is provided with an inductor and a voltage feedback line, and the voltage feedback line feeds back the end voltage of the inductor. The switch circuit is electrically connected with the inductance circuit to drive the inductance circuit. The check driving circuit is electrically connected with the switch circuit and the voltage feedback line, and the check driving circuit controls the switch circuit and generates a current feedback signal according to the end voltage of the inductor. The controller is electrically connected with the check driving circuit, and controls the check driving circuit according to the current feedback signal.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO
External bias pixel structure of light receiving stage circuit in dynamic vision sensor pixel
The invention discloses an external bias pixel structure of a light receiving stage circuit in a dynamic vision sensor pixel. The external bias pixel structure comprises a photodiode, a logarithmic tube, an amplifier tube, a switch tube and a bias tube, the bias tube, the switch tube and the amplifier tube are sequentially connected in series, a source electrode of the bias tube is connected with a power supply, a drain electrode of the bias tube is connected with a drain electrode of the switch tube, a source electrode of the switch tube is connected with a drain electrode of the amplifier tube, and a source electrode of the amplifier tube is grounded; the grid electrode of the bias tube is in signal connection with Vbias, the grid electrode of the switch tube is in signal connection with Vcpr, the source electrode of the switch tube and the drain electrode of the amplifier tube are connected with the grid electrode of the logarithmic tube, the drain electrode of the logarithmic tube is connected with a power supply, the source electrode of the logarithmic tube is connected with the negative electrode of the photodiode, and the positive electrode of the photodiode is grounded. And a grid electrode of the amplifier tube is also connected between the source electrode of the logarithmic tube and the negative electrode of the photodiode.
Owner:TIANJIN UNIV
Communication network power distribution cabinet convenient for heat dissipation
InactiveCN119448045Aavoid failureavoid submersionDispersed particle filtrationSubstation/switching arrangement cooling/ventilationCold airHigh density
The invention discloses a communication network power distribution cabinet convenient for heat dissipation, and relates to the technical field of power distribution cabinets, and the power distribution cabinet comprises a composite mechanism. According to the communication network power distribution cabinet convenient to dissipate heat, through the design of a composite mechanism, the box body shell is used for storing electronic components, after long-time operation, the temperature in the box body shell rises, hot gas rises, and then the hot gas flows to the processing mechanism from the circular groove, so that the heat dissipation effect is achieved, and the internal temperature of equipment is reduced; the ventilation mechanisms are arranged on the two sides of the box body shell, so that the convection effect is achieved, the cold air flowing effect is improved, the cold air is located at the low position with the high density, hot air is squeezed upwards after entering the box body shell, the discharging speed is increased, and the heat dissipation efficiency is improved. The box body shell is supported through the supporting assembly, so that the effect of reducing deformation of the box body is achieved, and internal electronic elements are protected.
Owner:HANGZHOU GUCI INTERNET TECHNOLOGY CO LTD
Compact three-phase superconductive air-core reactor
ActiveCN119252594Areduce areareduce vibrationTransformers/inductances noise dampingUnwanted magnetic/electric effect reduction/preventionThermal insulationSuperconducting Coils
The invention relates to a compact three-phase superconductive air-core reactor which comprises a vacuum heat insulation container, a cooling medium is contained in the vacuum heat insulation container, the vacuum heat insulation container comprises a vacuum heat insulation shell and a vacuum heat insulation cover, and a plurality of hanging rods extending into the vacuum heat insulation shell are arranged on the vacuum heat insulation cover; the three-phase superconducting magnet is immersed in the cooling medium, the three-phase superconducting magnet is formed by vertically stacking three single-phase superconducting magnets which sleeve the plurality of suspenders at intervals, and each single-phase superconducting magnet is of an iron-core-free hollow structure; the three low-temperature sleeve assemblies correspond to the single-phase superconducting magnets one to one, each low-temperature sleeve assembly comprises two low-temperature sleeves, the low-temperature sleeves partially extend into the vacuum heat insulation shell from the vacuum heat insulation cover, and the ends, located outside the vacuum heat insulation shell, of the low-temperature sleeves are connected into a power grid; and one end in the vacuum heat insulation shell is connected with the corresponding single-phase superconducting magnet through a current lead. The application scene of the reactor is expanded, and the problem that reactive compensation of a power grid is insufficient is effectively solved.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO
Mountain windproof flexible photovoltaic support and installation method
PendingCN119543769AImprove wind resistanceImprove installation efficiencyPhotovoltaic supportsSolar heating energyElectrical and Electronics engineeringSupport plane
Owner:ZHEJIANG THERMAL POWER CONSTR CO LTD
Mildew-proof tablet containing plant essential oil as well as preparation method and application of mildew-proof tablet
ActiveCN119632027AAchieve antibacterial effectGood slow releaseBiocideFungicidesMesoporous silicaBackbone chain
The invention relates to the field of essential oil slow release, and discloses a mildew-proof tablet containing plant essential oil and a preparation method and application thereof.The mildew-proof tablet containing the plant essential oil comprises two epidermal layers and an essential oil slow-release layer arranged between the two epidermal layers, the preparation method comprises the following steps: grafting sodium abietate and aminated mesoporous silica to prepare functionalized mesoporous silica, loading plant essential oil on the functionalized mesoporous silica to obtain a core material, introducing dihydroxyl polyhedral oligomeric silsesquioxane into a polyurethane main chain, wrapping the core material to prepare an essential oil slow-release agent, taking lignin as a base material, taking the essential oil slow-release agent as an effective component, and preparing the essential oil slow-release agent. And preparing to obtain the essential oil slow-release layer. The prepared essential oil slow-release layer can achieve the effects of essential oil slow release and antibiosis and mildew prevention, the slow-release effect is remarkable under the normal-temperature and high-temperature conditions, the good slow-release effect is still kept in the humid environment, and the efficacy period of the material is greatly prolonged.
Owner:GUANGZHOU AIHAOER ANTI-MOLD ANTIBACTERIAL TECHNOLOGY CO LTD
Vacuum microcavity interferometer chip, manufacturing method and low-drift optical pressure sensor
ActiveCN119461234ASimple manufacturing processreduce thicknessTelevision system detailsPiezoelectric/electrostriction/magnetostriction machinesThin membraneEngineering
The invention discloses a vacuum microcavity interferometer chip, a manufacturing method and a low-drift optical pressure sensor, a film island structure is formed on the upper surface of a first substrate, and the film island structure comprises a protruding part and a pressure sensitive film surrounding the protruding part; a first side wall part, a getter cavity, a second side wall part and an F-P interference cavity located in the center are sequentially arranged on the lower surface of the first substrate in the radial direction, a first reflecting surface is deposited on the lower surface of the first substrate in the F-P interference cavity, and a second reflecting surface is deposited on the upper surface of the second substrate in the F-P interference cavity. A first optical antireflection film is deposited on the surface of the protruding part, and the first optical antireflection film, the protruding part, the pressure sensitive film, the first reflecting surface and the second reflecting surface have the same center; the filter further comprises a vent hole, and the vent hole is formed in the second side wall part and used for communicating the getter cavity and the F-P interference cavity.
Owner:SHANGHAI BAIANTEK SENSING TECH CO LTD +1
Lateral air outlet synthetic jet pump device
ActiveCN119393323AImprove cooling efficiencyreduce areaPositive displacement pump componentsFlexible member pumpsMechanical engineeringPhysics
Owner:HENG MICRO (HANGZHOU) CO LTD
Tensor kernel system and hardware chip for large language model
ActiveCN119576273Areduce areareduce power consumptionDigital data processing detailsInference methodsLinguistic modelNumbering system
The invention provides a tensor core system for a large language model and a hardware chip, and relates to the technical field of artificial intelligence chips, and the tensor core system comprises an activation matrix processing part which is used for caching and preprocessing activation matrix data read from the interior of a memory to obtain a target activation matrix; the weight matrix processing component is used for caching and preprocessing the weight matrix data read from the inside of the memory to obtain a target weight matrix; the tensor kernel operation component is used for performing matrix floating-point number multiply-add operation on the target activation matrix and the target weight matrix to obtain a floating-point number multiply-add operation result, and accumulating the accumulation matrix and the floating-point number multiply-add operation result based on a preset floating-point number system to obtain a target result matrix; and the accumulation matrix and result processing component is used for performing floating-point number system conversion processing on the target result matrix to obtain a to-be-written result matrix, and writing the to-be-written result matrix into the memory. The method is more beneficial to improving the computing power utilization rate of the chip.
Owner:AEROSPACE INFORMATION RES INST CAS
Solar cell and photovoltaic module
ActiveCN222602934UIncrease the open circuit voltagereduce manufacturing costPhotovoltaic energy generationElectrical batterySolar cell
A solar cell includes a cell substrate, a plurality of collector electrodes, a plurality of bus electrode segments, and a plurality of columns of interconnects. The battery substrate has a target surface. The current collection electrodes are arranged on the target surface, extend in the first direction and are distributed at intervals in the second direction intersecting with the first direction. The bus electrode section is located on the target surface and extends in the second direction. And each row of interconnection parts extend along a second direction, and the interconnection parts are arranged on the current collection electrodes. The bus electrode section extends in the second direction and is located in the upper end edge area and / or the lower end edge area of the target surface. On the target surface, the number of the bus electrode sections is smaller than two times of the column number of the interconnection parts, and / or the length of at least one bus electrode section is smaller than or equal to 5.3 mm, and / or the weighted average width of at least one bus electrode section is smaller than or equal to 0.29 mm. And by reducing the number of the bus electrode sections, the current collection electrode can collect current carriers to the maximum extent, and the conversion efficiency of the battery is improved. The utility model also provides a photovoltaic module comprising the solar cell.
Owner:LONGI GREEN ENERGY TECH CO LTD
Cover plate assembly and battery
ActiveCN119650994Aincrease connection forceAvoid welding failureSmall-sized cells cases/jacketsCell sealing materialsElectrical batteryStructural engineering
The invention discloses a cover plate assembly and a battery, and relates to the technical field of batteries, the cover plate assembly comprises a cover plate, a pressing ring and a pole, and the cover plate is provided with a mounting hole arranged in a front-back penetrating manner along the thickness direction of the cover plate; the pole is arranged in the mounting hole in a penetrating manner; the pressing ring is arranged on the front side of the cover plate and sleeves the pole, and the pressing ring is welded and fixed with the peripheral side of the pole; the width of the pressing ring is W, the thickness of the pressing ring is H1, the diameter of the pole is D, and the area of the front end face of the pole is S. By controlling the width W of the pressing ring and the diameter D of the pole, the pressing ring can provide enough welding area, and the welding mark can reach enough connection width, so that stable connection between the pole and the pressing ring is ensured; by controlling the thickness H1 of the pressing ring and the area S of the front end face of the pole, the welding mark can reach enough connection depth, the connection force of the welding mark is improved, and the problem of welding failure of the pole and the pressing ring is effectively avoided.
Owner:CALB GROUP CO LTD
MTP device and preparation method thereof
ActiveCN119629999AExpand the scope of operationImprove programming efficiencyCapacitanceCapacitive coupling
According to the MTP device and the preparation method thereof, an MOS capacitor composed of a substrate, a gate oxide layer and a floating gate in a traditional MTP device is replaced with a capacitor located on the substrate and composed of the floating gate, an insulating layer and a conductive plug, so that the potential of the floating gate is controlled through capacitive coupling between the floating gate and the conductive plug; according to the MTP device disclosed by the invention, the capacitor is completely isolated from the substrate, so that the MTP device is not influenced by the potential of the substrate during programming and erasing operation, the operation range of the MTP device is further effectively expanded, namely the programming efficiency and the erasing efficiency of the MTP device are improved, and the reliability of the MTP device is improved. And meanwhile, higher capacitance coupling efficiency is realized in a smaller area, and the reduction of the chip area is facilitated.
Owner:JINGXINCHENG (BEIJING) TECH CO LTD +1
Ultra-low power consumption and high-speed level shift circuit and method based on subthreshold conduction
PendingCN119652309Afast conversionreduce power consumptionLogic circuits characterised by logic functionLogic circuits coupling/interface using field-effect transistorsTelecommunicationsHemt circuits
An ultra-low power consumption and high speed level shift circuit and method based on subthreshold conduction comprises an input shift circuit and a low power consumption output buffer, the input shift circuit comprises a pull-up network, a pull-down network and a feedback transistor, the pull-up network is of a current mirror structure, the pull-down network is composed of a first pull-down tube and a second pull-down tube, and the feedback transistor is connected with the first pull-down tube and the second pull-down tube. A feedback transistor is added, and when input signal high level conduction succeeds, the current mirror structure is switched off; and the second pull-down tube uses a common-gate transistor, and pulls down the output end of the input shift circuit to a low level by using the sub-threshold conduction principle of the common-gate transistor when the input signal is at a low level. According to the invention, the conversion speed of the falling edge signal in the circuit is effectively improved, the time delay is reduced, the static power consumption is ultralow, the wide voltage conversion range is provided, and meanwhile, the area is very small.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2
Analog-to-digital converter, conversion method and electronic product
ActiveCN119315988AImprove stabilityImprove reliabilityElectric signal transmission systemsAnalogue-digital convertersLow noiseCapacitance
The invention provides an analog-to-digital converter, a conversion method and an electronic product. The analog-to-digital converter comprises a differential analog-to-digital conversion module and a compensation module, the differential analog-to-digital conversion module is used for eliminating sampling thermal noise based on a double-sampling mode and realizing analog-to-digital conversion of an input signal; the compensation module receives the compensation signal, the output end of the compensation module is connected to the input end of a pre-amplifier in the differential analog-to-digital conversion module, and the compensation module compensates the change of the input signal coupled to the input end of the pre-amplifier based on a differential mode; wherein the input signal and the compensation signal which are connected to the same input end of the pre-amplifier are differential signals. According to the analog-to-digital converter, the conversion method and the electronic product, the sampling thermal noise elimination technology is adopted, the signal bandwidth limited by the saturation problem of the amplifier is increased by adopting the first-order approximate compensation module based on the differentiating circuit, and the analog-to-digital converter has the advantages of being small in sampling capacitance, low in noise, large in signal bandwidth and the like.
Owner:SHANGHAI WEIJIA TECHNOLOGY CO LTD
Low-dropout linear voltage stabilizing circuit, low-dropout linear voltage regulator and electronic equipment
ActiveCN119645183AImprove performancemaintain accuracyElectric variable regulationControl engineeringHemt circuits
The invention belongs to the technical field of electronic circuits, and provides a low-dropout linear voltage stabilizing circuit, a low-dropout linear voltage regulator and electronic equipment. The low-dropout linear voltage stabilizing circuit comprises an error amplification module, a buffer module, a power module, a feedback module and a transient enhancement module, the buffer module is connected with the error amplification module, the power module and the transient enhancement module, the power module is connected with the transient enhancement module, the feedback module and a load, and the feedback module is connected with the error amplification module. When the current on the load changes, the transient enhancement module provides the first current for the power module according to the target voltage, so that the power module quickly adjusts the target voltage according to the first current and quickly responds to the change of the load; the feedback module outputs feedback voltage according to the target voltage; the error amplification module outputs an error signal according to the feedback voltage and the reference voltage; the buffer module outputs a driving signal to the power module according to the error signal, so that the power module maintains the target voltage stable according to the driving signal.
Owner:SHENZHEN ZHENHUA FU ELECTRONICS
Main landing gear cabin door mechanism, aircraft and folding and unfolding method
ActiveCN119527539AReduce the windward arealow aerodynamic loadPower-operated mechanismWing arrangementsFlight vehicleMechanical engineering
The invention provides a main landing gear cabin door mechanism, an aircraft and a folding and unfolding method. The main undercarriage cabin door mechanism comprises a left cabin door and a right cabin door, one end of the left cabin door is provided with a first retractable driving mechanism, one end of the right cabin door is provided with a second retractable driving mechanism, and a small cabin door is hinged to the side, close to the right cabin door, of the left cabin door; the small cabin door and the left cabin door are provided with third folding and unfolding driving mechanisms which can respectively drive the small cabin door and the left cabin door to rotate; in the first position, the left cabin door and the right cabin door are both in a vertical state, and the small cabin door and the left cabin door are folded and overlapped; and at the second position, the left cabin door, the small cabin door and the right cabin door are horizontally positioned on the same plane. The small cabin door can be independently retracted and folded, after the cabin door is opened, the folded small cabin door can reduce the windward area of the cabin door in the put-down state, the pneumatic load borne by the cabin door is reduced, and the design of a driving mechanism for retracting and releasing the cabin door is lighter.
Owner:LANDING GEAR ADVANCED MFG
Built-in self-test repairing method for PE matrix of AI accelerator chip
ActiveCN119248544AImprove yield ratereduce manufacturing costNon-redundant fault processingComputer architectureBuilt-in self-test
The invention discloses a built-in self-test repairing method for a PE matrix of an AI accelerator chip, and relates to the technical field of circuit structure design of the AI accelerator chip. According to the built-in self-test method, a scan test generator is adopted to generate scan test excitation, an output response is transmitted through a configurable PE operation unit, an output response comparator is adopted to judge whether the output response is correct or not, and a fault PE diagnostor is adopted to judge a row and column address where a fault PE unit is located; according to the built-in self-repairing method, an RPE redundant operation unit is used for replacing and repairing a fault PE unit, and a corresponding data bus is distributed to the RPE redundant operation unit through an activation data bus and a weight data bus distributor according to row and column addresses. According to the invention, the self-test of the PE arithmetic unit and the self-repair of the failed PE arithmetic unit are realized with a relatively small extra circuit area proportion, so that the yield of the AI accelerator chip is improved, and the manufacturing cost of the chip is reduced.
Owner:GUANGDONG UNIV OF TECH
Reff wave phononic crystal resonator based on lithium tantalate single crystal film
The invention relates to the technical field of surface acoustic wave devices, and discloses a lithium tantalate single crystal film-based Loff wave photonic crystal resonator, which comprises a functional substrate and a piezoelectric film layer on the upper surface of the functional substrate, an interdigital transducer is arranged in the middle area of the upper surface of the piezoelectric film layer, and photonic crystals are arranged on the two sides of the interdigital transducer; the piezoelectric thin film layer is a lithium tantalate single crystal thin film, and the tangential direction of the lithium tantalate single crystal thin film is any one of Y cuts, including 0-degree Y, 36-degree Y, 42-degree Y, 50-degree Y, 64-degree Y and 128-degree Y cuts. The photonic crystal is used for replacing a reflecting grating in a traditional surface acoustic wave resonator, higher sound velocity and lower longitudinal loss are achieved through a material system constructed by combining the functional substrate and the lithium tantalate single crystal film, and the photonic crystal resonator has the advantages of being simple in structure, small in size and easy to prepare and integrate. And compared with a Bragg reflection grating resonator with the same size, the resonator has a higher Q value.
Owner:NANJING UNIV
Vector data processor, instruction processing method, system on chip and computing device
PendingCN119556982Areduce areasimple designRegister arrangementsArchitecture with single central processing unitComputer architectureFloating-point unit
The embodiment of the invention provides a vector data processor, an instruction processing method, a system on chip and computing equipment, the vector data processor comprises a data access unit and a vector floating point unit, the data access unit comprises a temporary register, and the vector floating point unit comprises a vector register; the data memory access unit is used for responding to a vector memory access instruction, performing memory access of target vector data on a memory and updating a temporary register based on the target vector data, and the vector memory access instruction is obtained by splitting a mask vector memory access instruction; and the vector floating point unit is used for reading the target vector data from the temporary register and writing back the corresponding target element in the target vector data to the vector register based on the mask vector. The hardware design is optimized, the complexity is effectively reduced, the power consumption is controlled, the performance frequency is effectively improved, the area of a vector data processor is reduced, and the innovative scheme provided by the embodiment of the specification can be used for an RISC-V instruction set chip.
Owner:DAMO ACAD (SHANGHAI) TECH CO LTD
Core-shell type hydrophobic modified activated carbon and preparation method thereof
PendingCN119409192AHigh grafting rateImprove hydrophobicitySilicaCarbon compoundsActivated carbonSilicic acid
The invention discloses core-shell type hydrophobic modified activated carbon and a preparation method thereof. The obtained hydrophobic activated carbon is composed of a core (activated carbon) and a shell (hydrophobic breathable silicon dioxide shell). The method comprises the following three steps: (1) constructing a silicon dioxide shell layer: dispersing pretreated activated carbon in a solvent, adding tetraethyl orthosilicate into the solvent, firstly adjusting the pH value of a reaction solution to be weakly acidic, stirring for 20-30 minutes under a certain stirring condition, then adjusting the pH value of the reaction solution to be weakly alkaline, continuously stirring for 0.5-1 hour to obtain a suspension A, and carrying out centrifugal drying treatment on the suspension A to obtain the silicon dioxide shell layer; an intermediate product coated with a hydrophilic silicon dioxide shell layer is obtained; (2) hydrophobic group grafting: dispersing the obtained intermediate product in a solvent, adding siloxane with different alkyl chain lengths into the solvent, fully stirring to obtain a suspension B, and performing centrifugal drying treatment to obtain hydrophobic modified activated carbon; cleaning and drying the hydrophobic modified activated carbon; and (3) adding a hydrophilic group: grafting the hydrophilic group on the silicon dioxide shell layer in an acid environment.
Owner:SOUTHEAST UNIV
Cascode cascade device
ActiveCN119275219Alow costReduce processing costsSemiconductor/solid-state device detailsSolid-state devicesCascodeHemt circuits
The embodiment of the invention discloses a cascode cascade device which is applied to the technical field of semiconductor manufacturing. In a cascode cascade device, a source electrode and a grid electrode of a low-voltage enhanced field effect transistor are respectively used as a source electrode end and a grid electrode end of the cascade device, and a drain electrode of a high-voltage enhanced field effect transistor is used as a drain electrode end of the cascade device, so that a balancing circuit and an adjusting circuit can be integrated on the low-voltage enhanced field effect transistor; and the balancing circuit and the adjusting circuit only relate to the resistor and the diode, and when the resistor and the diode are integrated on the low-voltage enhanced field effect transistor, only one mask needs to be added, so that the process cost is relatively low. And redundant devices do not need to be integrated on the high-voltage field-effect tube in the cascade device, so that the area of the high-voltage field-effect tube is saved, and the overall cost of the cascade device is relatively low.
Owner:GANEXT (ZHUHAI) TECH CO LTD
High-speed TDI image sensor pixel unit and image sensor
The invention relates to the technical field of semiconductor image sensors, in particular to a high-speed TDI image sensor pixel unit and an image sensor, the pixel unit is composed of a polysilicon gate, a buried channel and a photodiode, the active region of the photodiode is trapezoidal, the long bottom edge of the trapezoidal active region is connected with the buried channel, the active region comprises multiple stages of n-type injection regions, and the n-type injection regions are connected with the buried channel. And built-in potentials are sequentially decreased from the buried channel injection region to the short bottom edge of the trapezoidal active region. According to the TDI image sensor pixel unit, the clamping photodiode is additionally arranged on a traditional TDI image sensor pixel unit, and the photodiode adopts a combined design of a trapezoid and a multi-stage n-type injection region, so that the potential is gradually increased towards a polysilicon gate in a stepped manner, the flowing speed of charges to the polysilicon gate is increased, the flowing time is shortened, and on the premise that power consumption is not increased, the photoelectric conversion efficiency is improved. The method can be applied to high-speed scenes. The image sensor is designed based on the pixel units, so that the power consumption can be effectively reduced, the information acquisition speed is improved, and the image aliasing problem is avoided.
Owner:GPIXEL MICROELECTRONICS HANGZHOU INC +1
Bulk acoustic wave resonator, preparation method thereof and filter
The invention discloses a bulk acoustic wave resonator, a preparation method thereof and a filter, and relates to the technical field of resonators. The bulk acoustic wave resonator comprises a substrate, a bottom electrode, a piezoelectric layer and a top electrode, the bottom electrode, the piezoelectric layer and the top electrode are sequentially arranged on the substrate, a groove is formed in the substrate, and the overlapping area of the bottom electrode, the piezoelectric layer and the top electrode in the stacking direction serves as a resonance area. The top electrode comprises a first electrode pattern located in the resonance area and a second electrode pattern located outside the resonance area, the second electrode pattern and the first electrode pattern are arranged at an interval, a dielectric layer and a third electrode pattern are sequentially arranged on the second electrode pattern, and the second electrode pattern, the dielectric layer and the third electrode pattern form a capacitor. According to the bulk acoustic wave resonator, the preparation method thereof and the filter, the problems that in the prior art, extra leads are needed and the device area is large due to the fact that an external capacitor of a bulk acoustic wave resonator is additionally arranged can be solved, corresponding electrical parasitism is avoided, and then the device performance can be improved.
Owner:WUHAN MEMSONICS TECH CO LTD
Auxiliary support for water heating pipeline installation
InactiveCN119659014Aeasy to cleaneasy to moveHollow article cleaningDirt cleaningThermodynamicsElectric machine
The invention relates to the technical field of water heating pipeline installation, and discloses an auxiliary support for water heating pipeline installation, which comprises a bottom plate, a first moving assembly is arranged on the bottom plate, an adsorption box is installed on the first moving assembly, a hollow shaft is rotatably connected to the adsorption box, an adsorption opening is formed in the hollow shaft, and the adsorption opening is communicated with the adsorption box. A draught fan is fixed to the lower portion of the adsorption box, a motor assembly for driving the hollow shaft to rotate is arranged in the adsorption box, electric clamping jaws for clamping the water heating pipeline are arranged on the two sides of the adsorption box correspondingly, and a second moving assembly for adjusting the moving positions of the electric clamping jaws is arranged on the bottom plate. A plurality of moving wheels are fixed below the bottom plate; and dust and impurities on the hot melting part of the water heating pipeline can be conveniently cleaned through the rotating brush cleaning block, and can be discharged through the fan, so that dust and impurity residues on the hot melting part of the water heating pipeline are reduced, and the hot melting connection quality of the water heating pipeline is favorably improved.
Owner:SHANDONG CHUNXIA CONSTR ENG CO LTD
Method and device for generating interframe color-imitated pattern in FRC
PendingCN119583778Areduce areaincrease flexibilityColor signal processing circuitsReference mapComputer graphics (images)
The invention provides a method and a device for generating an inter-frame color-imitating pattern in FRC. The method comprises the following steps: determining a color depth difference value between a color depth to be displayed and a color depth of a display screen; wherein the to-be-displayed color depth is higher than the color depth; according to the color depth difference value, determining the size and the type of the color-imitated pattern, and screening out a key type from the types; according to the color depth difference value, the color-imitating pattern corresponding to each key type is divided, and a plurality of basic patterns are obtained; determining a reference pattern from the basic pattern, dividing the reference pattern to obtain a plurality of unit patterns, and transforming and splicing the unit patterns to obtain a color-imitating pattern of each frame; wherein the number of the reference patterns is the same as that of the key types. According to the scheme, the chip area occupied by the stored color-imitated patterns is reduced, meanwhile, more kinds of color-imitated patterns can be flexibly generated, and the color shaking effect is improved.
Owner:JI RUI ZHI YUAN (XIAMEN) TECH CO LTD
Asymmetric hybrid multi-gate semiconductor device, manufacturing method thereof and chip
The invention discloses an asymmetric hybrid multi-gate semiconductor device, a manufacturing method thereof and a chip, and belongs to the technical field of semiconductors. The asymmetric hybrid multi-gate semiconductor device comprises a substrate which comprises a first high-voltage well region, a drain region, a first drift region and a second drift region which are sequentially connected in the target direction are arranged in the first high-voltage well region, and the doping concentration of the second drift region is larger than that of the first drift region; a first source region and a second source region which are spaced in the target direction are arranged in the well region in the second drift region, the well region, close to one side of the first drift region, of the first source region forms a first channel region, and the well region at the bottom of the second source region forms a second channel region; a first gate structure covering the first channel region; the second gate structure is located in the first high-voltage well region and covers the second channel region. According to the invention, the overcurrent capability of the device can be improved, a small device area is maintained, and the integration level of the device is ensured.
Owner:BEIJING SMARTCHIP MICROELECTRONICS TECHNOLOGY CO LTD
Storage and calculation integrated majority voting logic gate circuit based on ferroelectric field effect transistor
ActiveCN222394356Ureduce in quantityreduce areaLogic circuits characterised by logic functionDigital storageHemt circuitsLogic gate
The utility model discloses a storage and calculation integrated majority voting logic gate circuit based on ferroelectric field effect transistors. The storage and calculation integrated majority voting logic gate circuit comprises an input module, an operation module, a discharge module and an output module, the input module receives three voltage signals and transmits the three voltage signals to the operation module according to a time sequence; the operation module comprises a ferroelectric field effect transistor, formation and damage of a conducting channel of the ferroelectric field effect transistor are directionally changed according to voltage signals received by a grid electrode and a source electrode, a nonvolatile operation relation with an external voltage signal as input and on-off of an internal channel as output is established, a logic input variable form is unified, and majority voting logic operation is executed. The discharging module adjusts a voltage signal of the operation module in a reading stage to prevent misreading; the output module accurately reads a nonvolatile operation result as a voltage signal; the circuit has the advantages that the storable majority voting logic function can be realized with a small number of transistors, the logic input variable form is unified, and the operation cascading capability and the circuit expandability are improved.
Owner:NINGBO UNIV