100 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 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. Comprising a titanium alloy shell, a zirconia ceramic wave-transparent layer is arranged on the inner wall of the titanium alloy shell, a magnetic type ear stud and a safety contact electrode are arranged outside the titanium alloy shell, a transparent nanowire solar film electrically connected with the safety contact electrode is arranged on the surface of the magnetic type ear stud, and a communication layer, a processing layer and a hybrid power supply layer are arranged in the titanium alloy shell. The communication layer comprises a UWB / BLE dual-mode antenna array, an IMU inertial navigation module and a signal processing FPGA module. According to the invention, the problem of long-acting power supply of the micro equipment in a continuous positioning mode can be solved, the cruising ability is high, and the signal transmission reliability in a complex indoor environment (the positioning success rate gt; 95%), the signal penetrability is better, non-sensitive wearing is achieved through the ear stud type design, wearing comfort is achieved, the functions are rich, and positioning-health monitoring integration is achieved by integrating a multi-mode sensor.

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.

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.

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 integrated optical display system includes a backplane with appropriate electronics, and an array of micro-devices. A touch sensing structure may be integrated into the system. In one embodiment, an integrated circuit and system is integrated on top of micro-devices transferred to a substrate. Openings in a planarization layer (or layers) may be provided to connect the micro-devices with electrodes and other circuitry. Light reflectors may be used to redirect the light, and color conversion layers or color filters may be integrated before the micro-devices or on the substrate surface opposite to the surface of micro-devices.

The present invention discloses a device for real-time monitoring and analysis of the lunar soil drilling process. The device comprises a drill rod having an inner and outer sandwich structure, comprising, from the inside out, a transparent layer, a micro-device mounting layer, and a rigid protective surface. The transparent layer houses a sampling chamber, which is equipped with a central piston and a central piston controller disposed at the top of the sampling chamber. The central piston controller is capable of controlling the upward and downward movement of the central piston within the sampling chamber. A sidewall image recognition sensor is mounted on the inner side of the micro-device mounting layer, and a top image recognition sensor is mounted within the sharp corner of the central piston. A foldable baffle is also provided at the bottom of the drill rod. The device can monitor the velocity field, displacement field, and stratigraphic information of the lunar soil particle flow in real time during lunar soil drilling, providing reference information for astronauts' drilling operations and thus guiding them in optimizing the sampling process in real time.

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.

After a proper amount of the slow-release water reducing agent is added into the basic magnesium sulfate foamed cement material, the compressive strength of the foamed cement can be remarkably improved. Specifically, along with the increase of the dosage of the slow-release type water reducing agent, the compressive strength of the foaming cement is in a trend of firstly increasing and then reducing, and meanwhile, the drying density of the foaming cement is gradually increased. The foaming cement material pursues lighter texture, so that the use amount of the slow-release water reducing agent needs to be strictly controlled in actual use. On the other hand, split type micro equipment with a foaming machine and a stirring machine separated is adopted, and finer and more uniform foam can be obtained in the foaming process.

This disclosure is related to post processing steps for integrating of micro devices into system (receiver) substrate or improving the performance of the micro devices after transfer. Post processing steps for additional structure such as reflective layers, fillers, black matrix or other layers may be used to improve the out coupling or confining of the generated LED light. In another example, dielectric and metallic layers may be used to integrate an electro-optical thin film device into the system substrate with the transferred micro devices. In another example, color conversion layers are integrated into the system substrate to create different output from the micro devices.

The invention relates to the technical field of laser cutting, in particular to a laser cutting wall-to-wall loss prevention method based on vision. According to the technical scheme, the method comprises the following steps that a component and an aluminum framework are fixed, a to-be-machined pattern is set, laser machining parameters are initialized, seed parameters of the half-cutting process are determined, first-time laser machining is executed based on the initialized parameters, laser emission is stopped after set machining times are completed, and a cutting channel is photographed through a high-power vision camera; and processing the shot image by adopting an image processing algorithm, extracting cutting channel information, and judging whether cutting is completed or not according to an image analysis result. According to the method, a visual algorithm is combined with dynamic management and control, the problem of wall damage prevention in the laser cutting process is effectively solved on the premise of not depending on expensive equipment, meanwhile, the cutting precision and the machining efficiency are considered, and the method is suitable for scenes such as micro devices with high requirements for machining precision and damage prevention.

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 embodiment of the invention discloses a gas sensor and electronic equipment. The gas sensor comprises a substrate, a heat source part and a sound wave sensing part, at least one of the heat source part and the sound wave sensing part is arranged on the substrate; the heat source part comprises a heating part, and a thermoacoustic cavity is formed around the heating part; the sound wave sensing part is provided with a sensing cavity, and the sensing cavity is communicated with the thermoacoustic cavity. Therefore, according to the gas sensor provided by the embodiment of the invention, through cooperative work of the heat source part and the sound wave sensing part, accurate detection of gas components and concentration can be realized by utilizing a thermoacoustic effect. Compared with a traditional gas sensor, the gas sensor has the advantages of high sensitivity, high response speed, simple structure, small size and the like. Meanwhile, the device is manufactured by adopting a micromachining technology, can be conveniently integrated into various micro devices, and has a wide application prospect.

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.

An integrated optical display system includes a backplane with appropriate electronics, and an array of micro-devices. A touch sensing structure may be integrated into the system. In one embodiment, an integrated circuit and system is integrated on top of micro-devices transferred to a substrate. Openings in a planarization layer (or layers) may be provided to connect the micro-devices with electrodes and other circuitry. Light reflectors may be used to redirect the light, and color conversion layers or color filters may be integrated before the micro-devices or on the substrate surface opposite to the surface of micro-devices.

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.

A micro-LED with improved emission efficiency and collimation is provided. The micro-LED (100) includes a mesa substrate (110) including a recess; a semiconductor material (120) disposed in the recess including a first surface (121) adjacent to the mesa substrate, a second surface (122) opposite the first surface, and a light emitting region (126) configured to emit light in response to application of a current. The second surface includes a convex surface (127). If an angle of incidence with respect to a normal of the convex surface is less than a critical angle, light emitted by the light emitting region that is incident on the convex surface is transmitted through the convex surface and refracted upon transmission through the convex surface. The light emitting region (126) is located near a focal plane of the convex surface (127). An area of the light emitting region is less than a cross-sectional area of the convex surface in a plane parallel to the light emitting region.