63 results about "Micro devices" patented technology

The invention provides a power equipment intelligent inspection abnormity identification method based on multi-dimensional data fusion, and the method comprises the steps: obtaining historical operation data and real-time monitoring data, fusing the historical operation data and the real-time monitoring data through a time sequence alignment method, generating a unified data set containing voltage, current, temperature and load information, and obtaining multi-dimensional equipment operation features; aiming at the outlier feature vector, adopting an adaptive neural network to adjust a weight coefficient of the health state evaluation model, generating an optimized weight parameter, and determining an optimized model structure; and performing health state evaluation on the unified data set through the optimized model structure, generating a health index scoring result of the equipment in combination with load over-limit period counting and a temperature abnormal fluctuation range, and determining an evaluation basis for guiding local maintenance of the miniature equipment.

A semiconductor IC device (50) includes a conductive through device connection. The connection may be located within a double diffusion break (DDB) region (51) separating the active regions (52, 53). The connection may include a dummy S / D region (24) between the front contact (30) and the back contact (32). The semiconductor IC device may further include a first (20) and / or a second diffusion interruption isolation rail (22). A connection may be between the first and second diffusion-interrupting isolation rails. The connection locations within the DDB region thus increase the packaging density of the semiconductor IC device. In addition, the connection may reduce wiring complexity and resistance through the semiconductor IC device, which may improve semiconductor IC device performance. Furthermore, the connections may utilize structural instances (e.g., front contacts, back contacts, dummy S / D regions, etc.) mirrored with structural instances used by micro devices (e.g., transistors, etc.) within the active region, which may reduce manufacturing complexity.

The invention belongs to the technical field of lithium ion batteries, and discloses a machine learning SOC estimation method using relaxation time distribution and fractional order model parameters, and the method comprises the steps: firstly, employing a DRT and a fractional order model to comprehensively analyze EIS data; the DRT can make up for the defect that the fractional order model cannot completely describe the EIS data, and can obtain the characteristics related to SOC estimation on multiple scales with the fractional order model, thereby providing guarantee for the accuracy of the SOC, and greatly reducing the data volume. And secondly, combining advanced intelligent technologies such as a machine learning model to realize real-time estimation of the SOC. According to the method, the fractional order model and the data driving model are combined, and the SOC estimation precision is improved. The method can be widely applied to products using lithium ion batteries, such as electric automobiles, micro equipment and the like, especially electric automobiles with vehicle-mounted EIS, and has important social and economic values.

The invention relates to the technical field of dielectric microspheres, in particular to a method for preparing dielectric microspheres by combining ultraviolet curing and a microfluidic technology. The invention provides a preparation method of a dielectric microsphere by combining ultraviolet curing and a microfluidic technology. The specific preparation method comprises the following steps: uniformly mixing a polymer ceramic precursor solution with a surfactant, photosensitive resin and a photoinitiator, forming monodisperse liquid drops in the micro-fluidic chip, and carrying out ultraviolet light curing molding in a collection bottle. And cleaning the polymer microspheres, drying and curing the polymer microspheres in a drying oven, and degreasing and sintering the polymer microspheres in a tubular furnace and a muffle furnace respectively to prepare the dielectric microspheres. The dielectric microsphere prepared by combining ultraviolet curing and a microfluidic technology has the characteristics of uniform size, good dispersity, easiness in size and composition regulation and control and the like, and has a wide market prospect in the fields of micro devices and sensors.

This application discloses a gas sensor and electronic device. The gas sensor includes a substrate, a micro-hot plate, and a microphone. At least one of the micro-hot plate and the microphone is disposed on the substrate. The micro-hot plate includes a heating element, and a thermoacoustic cavity is formed around the heating element. The microphone has a sensing cavity, with the sensing surface of the microphone facing the sensing cavity, and the sensing cavity communicating with the thermoacoustic cavity. The micro-hot plate also includes a first substrate and a heat insulation layer stacked together. The first substrate has a first through-hole, and the heating element is located within the heat insulation layer. Thus, the gas sensor of this embodiment, through the coordinated operation of the micro-hot plate and the microphone, can accurately detect the composition and concentration of gas using the thermoacoustic effect. Furthermore, it is fabricated using microfabrication technology, making it easy to integrate into various micro-devices and possessing broad application prospects.

The invention relates to the technical field of metal materials, and discloses a shape memory alloy film and a preparation method and application thereof. The shape memory alloy film comprises the following components: 50-55 at.% of Ni, 40-45 at.% of Ti, 3-5 at.% of Cu and 2-4 at.% of M, and M is selected from one or more of Zr, Hf and Nb. The shape memory alloy film has remarkable superelasticity, the recoverable strain of the shape memory alloy film can reach 8% or above, meanwhile, the compressive yield stress exceeds 1.5 GPa, and the shape memory alloy film shows excellent cycle stability. The preparation method is simple in process and high in controllability, a new scheme is provided for solving the problem of unstable performance of an existing NiTi-based film, and the preparation method is particularly suitable for high-performance micro devices such as a micro electro mechanical system.

The invention provides a coaxial telescopic tubular piezoelectric linear motor, a driving device and a system, the coaxial telescopic tubular piezoelectric linear motor comprises a stick-slip moving assembly, the stick-slip moving assembly comprises a first moving tube body and a second moving tube body, the first moving tube body is provided with a moving groove and fins, the fins abut against the second moving tube body so as to form a friction pair, and the second moving tube body is provided with a second moving groove; the second movable pipe body is provided with a pin shaft and a connecting groove; and the piezoelectric driving assembly comprises a piezoelectric ceramic tube, and the piezoelectric ceramic tube is connected to the first movable tube body and is externally connected with power supply equipment. In the invention, all functional components are arranged along the same axis, so that the radial size is obviously reduced, the device is suitable for being integrated on micro equipment, parts such as traditional guide rails and springs are omitted in structural design, and the assembly complexity and cost are reduced. System integration is facilitated, and the movement precision can be further improved. Compared with a conventional piezoelectric driving motor, the piezoelectric driving motor has the advantages of miniaturization, integration, high precision, high compatibility and applicability and the like.

This application relates to the integration of microdevices into a system substrate. In the microdevice integration process, a donor substrate is provided, on which initial fabrication and pixellation steps will be performed to define microdevices, which include a functional layer, such as a light-emitting layer, sandwiched between a top conductive layer and a bottom conductive layer. The microdevices are then transferred to a system substrate for finalization and electronic control integration. The transfer can be facilitated in various ways, including providing a continuous light-emitting functional layer, breakable anchors on the donor substrate, a temporary intermediate substrate that enables thermal transfer techniques, or a temporary intermediate substrate with a breakable substrate bonding layer.

The invention relates to micro device barrel mapping and compensation. In particular, the disclosure relates to compensation of micro devices based on cartridge information.

The invention relates to the technical field of electromagnetic shielding equipment, and provides an electromagnetic shielding device and a preparation method thereof, and the device comprises a flexible substrate and liquid metal; a shielding area is formed on the flexible substrate, and a plurality of shielding runners are arranged in the flexible substrate; at least two layers of flexible substrates are arranged, the multiple shielding runners are distributed in each layer of the flexible substrates, and the shielding runners in the multiple layers of flexible substrates cover the shielding area in at least two directions with included angles; the shielding flow channel is filled with the liquid metal. In this way, due to the fact that the shielding effect on electromagnetic waves in different polarization directions is brought by the directions of the shielding flow channels in different layers, and multi-layer reflection and absorption of the electromagnetic waves are brought by the structural size difference between the shielding flow channels in different layers, the more excellent and adjustable electromagnetic shielding effect is achieved; the flexible shielding flow channel is filled with the liquid metal, so that the electromagnetic shielding device has good flexibility, and fine management and regulation of electromagnetic shielding of micro devices can be realized.

Embodiments disclose methods of transferring selected micro devices on a receiver substrate. In one embodiment, a high resolution display containing an array of light emitting devices (LEDs) can be provided to assist in transferring the micro devices. The array of LEDs can selectively release a layer of adhesive or cure a bonding layer using light. Pixels in the display can be turned on at a predefined intensity corresponding to a group of selected micro devices to release the group of selected micro devices from a donor substrate.

An apparatus for generating magnetic field gradients, comprising (a) a first planar electromagnetic coil set configured to generate a first magnetic field gradient with respect to a first axis, (b) a second planar electromagnetic coil set configured to generate a second magnetic field gradient with respect to a second axis orthogonal to the first axis, (c) a third planar electromagnetic coil set configured to generate a third magnetic field gradient with respect to a third axis orthogonal to the first and second axes, and (d) a controller configured to selectively power the first, second, and / or third electromagnetic coil sets to sequentially generate positioning magnetic field gradients with respect to each of the first, second, and third axes, at least a portion of each positioning magnetic field gradient having a magnetic field magnitude that monotonically varies along the respective axis.

The invention discloses a device and method for evaluating influence of human activities on a plateau lake ecosystem, a barrel body is arranged in a semi-buried mode, the input end of an independent pumping system is externally connected with at least one liquid medicine bin, and the output end of the independent pumping system is arranged corresponding to the interior of the barrel body; a test end of the independent ecological monitoring part is arranged corresponding to the interior of the barrel body and is used for monitoring water environment parameters and macroscopic plant states; one end of the common pumping system comprises a plurality of inner end pipelines connected in parallel, and the common ecological monitoring part is arranged at the other end of the common pumping system and used for detecting the microcosmic plant state; according to the device and method for evaluating the influence of human activities on the plateau lake ecosystem, the semi-buried barrel body is combined with the hydrological control module, the plateau lake low-temperature environment and underground heat exchange characteristics are effectively restored, and the influence of human activities on the plateau lake ecosystem is evaluated through cooperative operation of the atmosphere testing part independent ecological monitoring part independent pumping system hydrological control module. The dynamic superposition interference simulation of eutrophication and climate warming is realized, and the limitation of a laboratory microcosmic device is broken through.

Drive pump, liquid cooling module, electronic equipment and vibrator preparation method relate to medium drive micro device technical field, and drive pump includes casing and vibrator; The casing has first channel and second channel, and the casing is equipped with pump cavity, and the first channel, the pump cavity and the second channel are communicated in proper order to form flow channel; The vibrator includes electrode layer, piezoelectric layer, electrode connecting layer and support layer which are connected in layers; The piezoelectric layer, electrode connecting layer and support layer form co-sintered body, the electrode layer is attached on the side of piezoelectric layer away from support layer, and the electrode connecting layer is located between piezoelectric layer and support layer; The vibrator is located in the casing and constitutes part of the side wall of the pump cavity, for driving medium to flow in the flow channel. The co-sintered body formed by sintering the piezoelectric layer and the support layer can effectively improve the yield and reliability of the finished drive pump, increase the amplitude and conversion efficiency of the vibrator, and the connection between the piezoelectric layer and the support layer is more firm, so that the performance and reliability of the drive pump are improved.

An advanced method for manufacturing an optoelectronic system array is disclosed in which micro-devices are developed separately and then transferred into a system substrate. Various embodiments are disclosed, including distributed sacrificial reference points, real-time monitoring with various sensing techniques, laser generated alignment marks, non-contact laser triangulation, and marking using polymers to dynamically estimate and correct alignment during each transfer phase. The invention further discloses a method for detecting and correcting errors caused by wear, environmental changes, load variability and mechanical vibrations, which may be AI-based. Generally, the system for pre-transfer calibration, monitoring, error detection, and compensatory adjustment enables precise and reliable integration of micro-devices into optoelectronic systems, thereby significantly enhancing alignment accuracy, stability, and reliability throughout the manufacturing process. The system may further be AI-based calibration verification in a micro device transfer system.

The invention relates to the field of semiconductor devices, and discloses a physical unclonable function structure based on a FeRAM array and a response method, the physical unclonable function structure is characterized in that the output end of the 1T1C FeRAM array is connected with a charge differential detection module, and the control end is connected with a static excitation and column gating module; the input end of the static excitation and column gating module is connected with an external challenge signal; the input end of the charge differential detection module is connected with a charge signal output by the 1T1C FeRAM array, and the output end of the charge differential detection module is connected with the response coding module; the output end of the excitation parameter configuration module is connected with the static excitation module and used for adjusting excitation voltage. According to the method, the entropy source is generated through dynamic response, and low-energy-consumption reconstruction is supported; through differential detection and ferroelectric stability, the stability of the PUF circuit is remarkably improved, the energy consumption area of a column array is remarkably reduced, and the PUF circuit is adaptive to micro equipment of the Internet of Things; and the strong PUF can be reconstructed, and the anti-attack capability is strong.

The present application relates to a kind of transfer method of micro device and micro device structure.The transfer method of micro device includes: providing the micro device structure to be transferred, the micro device structure to be transferred includes substrate, multiple micro devices on substrate by buffer structure, elastic sealing structure;Elastic sealing structure is connected to substrate, and each buffer structure corresponding to micro device and at least part of the sidewall of each micro device is surrounded;Providing back plate, and the micro device structure to be transferred is arranged opposite to back plate;Using laser to decompose buffer structure, the gas generated when buffer structure decomposes makes elastic sealing structure expand and stretch, and micro device is topped to the surface of back plate;Remove elastic sealing structure, to transfer micro device to back plate.Can make micro device quickly and mass transfer to back plate, and can avoid micro device to incline, roll over and fall in back plate in the process of transfer, improve transfer yield, and simple and convenient operation.

The present disclosure discloses an electrostatic discharge (ESD) protection system for micro devices. The ESD protection system includes a pixel driver circuit electrically connected to at least one micro LED pixel for controlling the turn-on or turn-off of the micro LED pixel, and a first ESD protection unit configured in an external circuit outside the pixel driver circuit. The first ESD protection unit includes at least one unidirectional transient voltage suppressor. The cathode of the unidirectional transient voltage suppressor is connected to a first level voltage (Vdd), and the anode of the unidirectional transient voltage suppressor is connected to a second level voltage (Vcom). The micro LED pixel is connected to the second level voltage (Vcom). The present disclosure can protect the micro LED pixel from damage by electrostatic discharge. Various embodiments include an ESD protection system for a display panel having an array of micro LED pixels.

The application provides a confined water type high-efficiency photothermal evaporation material and device, which comprises a nanopore photothermal conversion material layer and a hydrophilic material filled in the nanopore to form a high-water-absorption confined evaporation structure. The hydrophilic material is preferably filled into the nanopore by an atomic layer deposition method, and the hydrophobic material layer is preferably obtained by photothermal conversion nanoparticle suspension immersion coating or spraying. The application forms a high-water-absorption confined evaporation structure by constructing a nanopore photothermal conversion material layer and filling a hydrophilic material in the nanopore, changes the evaporation form of water molecules in the confined space, reduces the evaporation enthalpy, thereby significantly improves the evaporation rate and the photothermal conversion efficiency, greatly improves the solar energy conversion capacity, saves the manufacturing cost and the energy consumption cost, and is applicable to micro devices and has higher universality.

The application provides a miniaturized ear stud type positioning device based on a hybrid power supply system and an active signal enhancement technology, and belongs to the technical field of pet positioning. The device comprises a titanium alloy shell, an inner wall of the titanium alloy shell is provided with a zirconia ceramic wave-transparent layer, the titanium alloy shell is externally provided with a magnetic ear stud and a safe contact electrode, the surface of the magnetic ear stud is provided with a transparent nanowire solar film electrically connected with the safe contact electrode, the inside of the titanium alloy shell is provided with a communication layer, a processing layer and a hybrid power supply layer, and the communication layer comprises a UWB / BLE dual-mode antenna array, an IMU inertial navigation module and a signal processing FPGA module. The application can solve the long-acting power supply problem of a miniaturized device in a continuous positioning mode, has strong endurance, improves the signal transmission reliability (a positioning success rate is greater than 95%) in a complex indoor environment, has better signal penetration, realizes non-inductive wearing through an ear stud type design, has comfortable wearing, is rich in functions, integrates multi-mode sensors to realize positioning-health monitoring integration.

The present disclosure relates to a solid state micro device structure that has a microdevice formed on a substrate, with p and n doped layers, active layers between at least the two doped layers, pads coupled to each doped layer, and wherein the n-doped layer is modulated to have a lower conductivity towards an edge of the device. The invention further involves, dielectric layer, conductive layer, passivation layer and MIS structure.

This disclosure is related to compensation of micro devices based on cartridge information.

The invention discloses core particle integration in a backplane display. In particular, a transferable array of core particle structures loaded with micro devices is discussed. In addition, methods such as a method of manufacturing a core particle structure having an active backplane, a method of integrating core particles loaded with micro-LEDs into a cassette wafer, and a method of integrating micro-LEDs to connect to a display backplane are also disclosed.

The invention relates to miniature CT equipment and a control method thereof, the miniature CT equipment comprises a machine body, a plurality of light environment assemblies and a controller, and the machine body is provided with a scanning cavity; the multiple sets of light environment assemblies are all arranged on the machine body, and at least one set of light environment assembly extends in the circumferential direction of the scanning cavity. Power supply lines of the multiple groups of light environment assemblies are connected in parallel; the light environment assembly is used for displaying light of different colors according to different working states of the machine body. And when one group of light environment is damaged and fails and cannot emit light, the other light environment assemblies can still emit light normally, so that the convenience of using the miniature CT equipment is improved. Moreover, the device adapts to the shape of a scanning cavity, is more attractive, and is more convenient to process and manufacture. In addition, the multiple light environment assemblies can display light of different colors according to different working states of the machine body, and workers can conveniently judge the working states of the machine body according to the colors of the light environment assemblies.

What is disclosed is a method of selectively transferring micro devices from a donor substrate to contact pads on a receiver substrate. Micro devices being attached to a donor substrate with a donor force. The donor substrate and receiver substrate are aligned and brought together so that selected micro devices meet corresponding contact pads. A receiver force is generated to hold selected micro devices to the contact pads on the receiver substrate. The donor force is weakened and the substrates are moved apart leaving selected micro devices on the receiver substrate. Several methods of generating the receiver force are disclosed, including adhesive, mechanical and electrostatic techniques.

What is disclosed is structures and methods of integrating micro devices into system substrate. Further, the disclosure, also relates to methods and structures for enhancing the bonding process of micro-devices into a substrate. More specifically, it relates to expanding the micro device area or bonding area of micro devices.

A method of selectively transferring micro devices from a donor substrate to contact pads on a receiver substrate. The method may comprise: providing a donor substrate comprising the plurality of micro devices, transferring the plurality of micro devices to an intermediate substrate, aligning a selected set of micro devices on the intermediate substrate proximal to the system substrate, providing a photo-sensitive layer between the selected set of micro devices and the system receiver; turning on the selected micro devices, curing the photo-sensitive layer in between the selected set of micro devices and the system substrate by light emitted by the selected micro devices; and bonding the selected set of micro devices to the corresponding contact pads on the system substrate.

The present disclosure provides a flexible sensor based on flexoelectric effect and an electronic device, the flexible sensor comprising a lower electrode layer, a flexoelectric layer and an upper electrode layer arranged in sequence; wherein the flexoelectric layer comprises a layered residual layer and a truncated cone array structure arranged on the surface of the layered residual layer, and the flexoelectric layer comprises a polyvinylidene fluoride material. The flexible sensor of the present disclosure can effectively improve the sensitivity and electrical performance, efficiently and stably output, meet the size design requirements of micro devices, and reduce the production cost.