39 results about "Micro array" patented technology

The invention provides a clinical motion control device, method and system, electronic equipment and a medium, and the device comprises an ultra-micro array implantation probe which is configured to be implanted into a brain motor cortex of a patient and collect a neuroelectric signal of the brain motor cortex; the integrated data processing module is electrically connected with the ultra-micro array implanted probe and is configured to convert the neuroelectric signals into digital signals and perform neural decoding on the digital signals to obtain motion control signals containing the motion intention of the patient; and the data transmission module is in communication connection with the integrated data processing module and is configured to transmit the motion control signal to external rehabilitation equipment through a wired interface or a wireless communication mode, so that the external rehabilitation equipment drives the limbs of the patient to execute corresponding rehabilitation motions. According to the invention, large-scale, high-precision and synchronous monitoring can be carried out on brain motor cortex neural activities, the signal acquisition quality is improved through an integrated structure design, and the signal decoding precision is improved at the same time.

The invention discloses a high-resolution standardized microarray compound eye lens module and a light field regulation and control system, particularly relates to the technical field of light field regulation and control, and realizes high-precision standardized definition of key parameters of a microlens unit and optical axis micro-angle deviation calibration through a microlens array standardized module. A standardized micro-lens array is used for completing efficient acquisition of multi-view and multi-focus high-resolution light field data of a target three-dimensional scene, and non-consistent temperature control focus drift information and visual axis offset accumulation out-of-control information between micro-arrays are synchronously captured in real time; a light field reconstruction imbalance risk assessment model is cooperatively constructed based on a non-uniform temperature control focus drift coefficient and a visual axis offset accumulation out-of-control coefficient between microarrays, a light field reconstruction imbalance risk assessment index is output in real time, quantitative assessment and dynamic early warning of the imbalance risk degree in the light field reconstruction process are achieved, and an intelligent decision basis is provided for reconstruction regulation and control.

A device for examining samples is disclosed, comprising a microarray, an excitation light source, and an image sensor (10). The image sensor (10) has a plurality of SPAD arrays (11), a plurality of additional photodiodes (12), and computing electronics. The SPAD arrays (11) are configured to detect the decay behavior of fluorescence light emitted as a result of irradiation with excitation light (L) in a respective detection area of ​​the SPAD array (11). The additional photodiodes (12) are configured to measure the respective intensity of the excitation light (L) incident on each of them. The computing electronics are configured to determine a normalized decay behavior of fluorescence light for one or more of the SPAD arrays (11) from the detected decay behavior and at least one of the measured intensities of the excitation light (L).Furthermore, a method for examining a sample is disclosed.

A micro-LED pixel includes: a first light-emitting platform; a second light-emitting platform disposed above the first light-emitting platform; and a third light-emitting platform disposed above the second light-emitting platform, wherein at least a portion of the third light-emitting platform completely covers the second light-emitting platform; and the first light-emitting platform, the second light-emitting platform, and the third light-emitting platform do not contact each other.

A micro projector and a semiconductor wafer are provided. The micro projector includes a micro LED array display chip; and a lens group provided above the micro LED array display chip and supported by a bottom connector. The semiconductor wafer includes a micro LED wafer including a plurality of micro LED array display chips; and a plurality of lens wafers stacked on the micro LED wafer to form a micro projector array.

This invention belongs to the field of optoelectronic technology, specifically relating to a method for fabricating a controllable crystallization micron-scale perovskite light-emitting device based on solution pretreatment. The method includes the following steps: Step 1: Obtaining a patterned microporous substrate; Step 2: Pre-wetting and seed layer construction; Step 3: Deposition of the main perovskite layer; Step 4: Slow-release controllable crystallization; The spin-coated wet film is placed in a vapor atmosphere of a good solvent for treatment, followed by thermal annealing to form a perovskite thin film within the patterned micropores; Step 5: Fabrication of a controllable crystallization micron-scale perovskite light-emitting device based on solution pretreatment. This invention, using pre-wetting, seed guidance, slow-release crystallization, and vapor annealing on a patterned microporous substrate, achieves precise control over the entire process of film nucleation and growth kinetics within the confined space of the micropores, thereby achieving high-quality, uniform fabrication of perovskite thin films within micron-scale micropores, and ultimately obtaining a high-performance, highly uniform microarray perovskite light-emitting device.

The invention belongs to the technical field of metal fin manufacturing, and provides a device and a method for preparing a surface corrugated array metal heat exchange fin, the device comprises a die assembly, an input channel and a lower output channel are arranged in the die assembly, the input channel is communicated with the lower output channel, a microarray plastic extrusion cutter is arranged at the tail end of the input channel, and the microarray plastic extrusion cutter is arranged at the tail end of the lower output channel. A plurality of arrayed micro-size channels are formed in the micro-array plastic extrusion tool, the micro-size channels are used for extruding a micro-array groove structure on the side wall of a workpiece, a cutting tool is arranged below the micro-array plastic extrusion tool, and a transverse output channel is further arranged in the die assembly; one end of the transverse output channel is communicated with a gap between the microarray plastic extrusion tool and the cutting tool; and the loading assembly is used for pushing the workpiece to move downwards along the input channel. Based on the plastic extrusion cutting principle, the efficient heat exchange metal fin with the surface corrugated array structure can be efficiently prepared.

A carbon fiber implantable probe, a method of manufacturing the carbon implantable probe, and a method of implanting the probe in an implantation site, such as a nerve. The carbon fiber implantable probe includes a flexible probe body, a carbon fiber microarray (CFMA) comprising one or more carbon fiber electrodes at least partially embedded in the flexible probe body, and a signal conductor connected to the one or more carbon fiber electrodes of the CFMA. In one example, the CFMA includes carbon fiber electrodes having conductive carbon cores partially surrounded by an insulative coating. The combination of the CFMA with the flexible probe body, made of silicone rubber for example, can improve implantation processes.

Embodiments disclosed herein include optical communication modules and optoelectronic packages. In an embodiment, an optical communication module comprises a substrate, a transistor over the substrate, an array of micro light emitting diodes (LEDs) over the transistor, and a connector over the array of micro LEDs.

The invention discloses a lithium ion battery electrode material high-throughput screening method based on a single-particle electrochemical technology, which comprises the following steps: firstly, depositing sample solutions of various different electrode materials on the same conductive substrate in an array form through an automatic sample application technology to form a microarray comprising a plurality of independent deposition points; then assembling into an electrochemical testing unit, and synchronously monitoring the dynamic optical response of each deposition point in situ by using an optical imaging system in the charging and discharging process; and finally, extracting and analyzing the optical signal of each point, and fitting to obtain electrochemical parameters for evaluating the performance of the material. The intrinsic electrochemical response data of dozens of to hundreds of material particles can be obtained in parallel by one experiment, the flux is high, the operation is simple and convenient, the interference of a conductive agent and a binder in the traditional electrode preparation is avoided, the material characteristics can be truly reflected, and the research, development and screening efficiency of the electrode material is remarkably improved.

The invention belongs to the technical field of LED display screens, and particularly relates to an LED display screen based on a nano coating technology and a preparation method of the LED display screen. Compared with the prior art, according to the LED display screen based on the nanometer coating technology, the transmittance and reflectivity of the LED display screen in different wave bands are adjusted through alternate coating of the low-refractive-index coatings and the high-refractive-index coatings, so that spectrum selective regulation and control are achieved, meanwhile, the reflection effect is improved through the surface prismoid-shaped microarray structure, the radiation surface area is increased, and the light transmittance of the LED display screen is improved. The heat dissipation performance and the optical requirement are balanced, so that outdoor LED display product cooling is achieved, and the heat dissipation device is particularly suitable for heat dissipation of an LED screen in an outdoor strong solar radiation area.

A 3D semiconductor device including: a first level including a single crystal layer, a memory control circuit, a first metal layer, a second metal layer, and a third metal layer; connection of the first transistors comprises the first, and / or the second, and / or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines and at least four memory mini arrays which include at least four rows by four columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; the memory control circuit includes first transistors and voltage regulators.

Systems and methods for detecting micro LED arrays using non-contact field effect electroluminescence are disclosed.

The invention discloses a micro array controllable spiral deformation ICE catheter and an imaging range expanding method.In the ICE catheter, a hollow acoustic window structure is arranged at the far end of a sheath tube and used for being filled with a liquid acoustic coupling medium, and a supporting assembly, a power assembly, a micro transducer linear array and a traction piece are connected into the hollow acoustic window structure; the supporting assembly is arranged in the axial direction of the sheathing canal. The micro transducer linear array comprises a plurality of transducer array elements which are rotatably arranged on the supporting assembly and are sequentially arranged in the axial direction of the sheath tube, and each transducer array element is provided with a piezoelectric layer perpendicular to the axial direction of the sheath tube; the traction piece is sequentially connected with the transducer array elements and is eccentrically connected with the transducer array elements; the output end of the power assembly is in transmission connection with the traction piece and can drive the traction piece to swing, the traction piece drives at least part of transducer array elements of the micro transducer linear array to rotate asynchronously so as to be arranged in a spiral form, clear image quality can be achieved in a dynamic view field, and the bending adjustment requirement of the sheath tube can be lowered.

A 3D semiconductor device including: a first level including a first single crystal layer and a memory control circuit including first transistors and control circuit connectivity provided by first, second, and third metal layers; a second level including second transistors (one which includes a metal gate) disposed atop the first level; third transistors disposed atop second transistors with a fourth metal layer disposed atop; a memory array including word-lines, the memory array includes at least four memory mini arrays, where each mini array includes at least four rows by four columns of memory cells, and where each of the memory cells includes at least one of the second or third transistors; a connection path from the fourth metal to the third or second metal layer, which includes a via disposed through the second level, and where the memory control circuit includes at least one power down control circuit.

Devices and methods for analyzing polymer arrays formed on integrated surfaces of microLEDs. One microarray includes a plurality of individually controllable microLED elements, a plurality of photodetector elements, an integrated surface, and a CMOS driver chip. Each microLED element is paired with a photodetector element. The CMOS driver chip controls activation of the microLED elements and the photodetector elements.

The invention relates to the technical field of fluid simulation, and discloses a micro array nozzle homogenization and deceleration method and system based on fluid simulation analysis, and the method comprises the steps: building a three-dimensional fluid simulation model of a coupling temperature field, a flow field and a self-oscillation field, detecting the outlet flow velocity, a pressure pulsation signal and a temperature signal of each micro nozzle; and a multivariable fuzzy PID controller is adopted, outlet speed uniformity, average speed and pressure pulse rate are taken as control targets, controllable parameters are dynamically adjusted, and active suppression and compensation of dynamic disturbance are realized. And meanwhile, real-time monitoring data is compared with a simulation result, a simulation model is continuously corrected by utilizing deviation, so that the simulation model infinitely approaches physical reality, a high-reliability control parameter set is generated, and the problem of control failure caused by model mismatch is fundamentally solved. Through a periodic online calibration mechanism, the flow distribution of each nozzle is adjusted in a self-adaptive manner, and automatic compensation of performance drift is realized, so that the targets of homogenization and deceleration are stably achieved for a long time.

This topic discloses systems and methods for determining regions of interest (AOIs) for different types of input slides. Slide thumbnails can be assigned to one of five different types, and a separation algorithm for AOI detection is performed based on the slide type. Slide types include: ThinPrep (RTM) slides; Tissue Microarray (TMA) slides; Controlled HER2 slides with 4 cores; smear slides; and general-purpose slides. The slide type is specified based on user input. Customized AOI detection operations are provided for each slide type. If the user inputs an incorrect slide type, the operation includes detecting the incorrect input and performing an appropriate method. The result of each AOI detection operation provides a soft-weighted image as its output, with zero intensity values ​​at pixels detected as not belonging to tissue and higher intensity values ​​assigned to pixels detected as potentially belonging to tissue regions.

The invention discloses a zinc-free negative electrode material with a three-dimensional gradient structure and application of the zinc-free negative electrode material, and belongs to the technical field of batteries. The aluminum foil and the copper sheet are tightly attached together to obtain a composite sheet; and performing laser treatment on one surface, with the aluminum foil, of the composite sheet under a protective atmosphere to obtain the zinc-free negative electrode material with the three-dimensional gradient structure and the microarray structure. The surface of the zinc-free negative electrode material with the three-dimensional gradient structure is provided with a microarray structure; comprising a conducting layer and an alloy layer growing on the conducting layer in situ, the conducting layer is Cu, the alloy layer is Cu9Al4, and the microarray structure sequentially comprises Cu9Al4 and Cu from top to bottom. According to the negative electrode material, electrode surface electric field distribution, zinc ion concentration distribution and zinc nucleation behaviors are effectively optimized, so that uniform zinc deposition is realized, dendritic crystal generation and corrosion / side reaction are inhibited, excellent electrochemical performance and flexible performance are shown in practical application, and the electrode stability is improved.

The invention provides a photovoltaic cell and a photovoltaic module, the photovoltaic cell comprises a silicon substrate, the silicon substrate is provided with a backlight surface and a light facing surface which are oppositely arranged, the backlight surface is provided with a plurality of grid lines in parallel along a first direction, the grid lines extend along a second direction, the surface of the silicon substrate is provided with a microarray, the microarray comprises a plurality of microstructure units, and the microstructure units are arranged on the surface of the silicon substrate. The included angle between the microarray and the grid line is 90.1-107.3 degrees, and the first direction is crossed with the second direction, so that the light utilization rate can be improved, the light absorption efficiency can be improved, and the problem of low conversion efficiency of a photovoltaic cell in the prior art is solved.

The application discloses a three-dimensional gradient structure zinc-free negative electrode material and application thereof, and belongs to the technical field of batteries. An aluminum foil and a copper sheet are tightly attached together to obtain a composite sheet; one side of the composite sheet with the aluminum foil is subjected to laser treatment under a protective atmosphere to obtain a three-dimensional gradient structure zinc-free negative electrode material with a microarray structure. The three-dimensional gradient structure zinc-free negative electrode material has the microarray structure on the surface; the three-dimensional gradient structure zinc-free negative electrode material comprises a conductive layer and an alloy layer grown in situ on the conductive layer, the conductive layer is Cu, the alloy layer is Cu9Al4, and the microarray structure comprises Cu9Al4 and Cu from top to bottom. The negative electrode material effectively optimizes the electrode surface electric field distribution, zinc ion concentration distribution and zinc nucleation behavior, thereby realizing uniform zinc deposition and inhibiting dendrite generation and corrosion / secondary reaction, and exhibiting excellent electrochemical performance and flexible performance in practical application, so that the electrode stability is improved.

A power system for an LED pixel array includes at least two power supplies that are respectively connectable to sub-arrays in the LED pixel array and provide adjustable power. A controller is connected to the at least two power supplies, where the controller is capable of adjusting the power provided based on measured needs of the sub-arrays in the LED pixel array. In one embodiment, the LED pixel array is a micro-LED array.

The invention discloses an electronic microarray chip dot matrix negative and positive judgment method and system based on an ISFET sensor, and relates to the technical field of computer vision and image processing. The method comprises the following steps: firstly, acquiring the position of a chip dot matrix, a primer stage and voltage data after extension reaction; identifying and eliminating bad holes by setting a low reaction threshold value and a noise threshold value; calculating the background value and the effective signal value of each dot matrix, and finally obtaining the signal mean value of the negative quality control, the positive quality control and the target area; and finally, comparing the positive quality control mean value with a threshold value to verify the effectiveness of the experiment, and automatically judging whether the sample is positive or negative based on the comparison result of the target mean value and the threshold value. According to the invention, the automatic and quantitative interpretation of the dot matrix detection result is realized, the defects of strong subjectivity, low efficiency and easy misjudgment of manual interpretation are overcome, and the accuracy and robustness of detection are obviously improved.

The application relates to the technical field of electronic equipment, in particular to a shell, a display cover plate and electronic equipment, wherein the shell comprises a shell body, the shell body comprises a base and a microarray layer, the base has an inner surface and an outer surface, the microarray layer is arranged on the outer surface, the microarray layer comprises a plurality of spaced-apart bosses, the axial cross-sectional diameter of the boss is D, the height of the boss 121 is H, the distance between two adjacent bosses is L, 10 nm<=D<=1.8 mu m, H>=100 nm, 10 nm<=L<=1.8 mu m, and H / (L+D)>=1. In the application, a cavity is formed between the bosses, electromagnetic waves can resonate in the cavity, the emissivity is improved, and the heat dissipation efficiency of the electronic equipment is improved. According to the scheme, the emissivity of the shell in the 2.5 mu m-25 mu m wave band can be improved to >=88% without affecting the appearance of the shell surface, so that the shell can be applied to various application scenarios.

A micro projector and a semiconductor wafer are provided. The micro projector includes a micro LED array display chip; and a lens group provided above the micro LED array display chip and supported by a bottom connector. The semiconductor wafer includes a micro LED wafer including a plurality of micro LED array display chips; and a plurality of lens wafers stacked on the micro LED wafer to form a micro projector array.

A 3D semiconductor device including: a first level including a single-crystal layer, a memory control-circuit including first transistors, a first metal layer, a second metal layer, a third metal layer; connection of the first transistors includes the first, and / or the second, and / or the third metal layer; a fourth metal layer disposed atop third transistors disposed atop second transistors disposed atop said first level; a memory array including word-lines, including at least four memory mini-arrays including at least four-rows-by-four-columns of memory cells, each of the memory cells includes at least one of the second transistors (at least one with a metal-gate) or at least one of the third transistors; a connection path from the fourth metal to the third metal including a via disposed through the memory array; a semiconductor die, including second transistors and at least one alignment mark positioned toward the die edge, disposed atop said first level.

The invention belongs to the technical field of biological detection signal processing, and particularly relates to an electronic microarray chip data processing and signal extraction method and system. The method comprises the steps that stable dot matrix inner and outer well data are obtained through integral screening, the voltage difference is calculated, and preprocessing is carried out through double smoothing filtering, standardization and PCA dimension reduction; first-order and second-order derivatives of the preprocessed data are calculated and smoothed; searching and positioning a signal starting point st and an end point ed at the front section of the smoothed first-order derivative signal through a sliding window, and repairing a missing point based on second-order derivative characteristics and linear fitting; and finally, performing baseline fitting according to st and ed, and calculating an area difference between a signal curve and a baseline as an effective semaphore. The method effectively solves the problems of weak anti-interference capability, inaccurate start and end point positioning, large semaphore calculation deviation and the like in the prior art, and has the advantages of high data processing precision, high adaptability and high automation degree.

The invention discloses a multi-layer modified ultra-micro array electrode and a method for detecting selenium ions by using the multi-layer modified ultra-micro array electrode, and relates to the technical field of electrochemical analysis. L-cysteine is adopted as a modifier, and a firm Au-S covalent bond can be formed by sulfydryl in the molecular structure of L-cysteine and the surface of the gold film, so that an orderly-arranged and stable modification layer is constructed; meanwhile, amino groups and carboxyl groups in molecules can generate specific recognition and coordination with selenium ions, especially Se (IV), through hydrogen bonds and electrostatic attraction, so that the selective adsorption capacity to selenium is remarkably enhanced. The enrichment efficiency of selenium on the surface of the electrode is improved by more than 10 times under the dual action of anchoring multilayer modification and specific recognition, and the detection limit is as low as 0.1 microgram / L by combining the high resolution of differential pulse voltammetry and is reduced by 1-2 orders of magnitude compared with a traditional unmodified gold electrode, a glassy carbon electrode or other modification systems. The precise capture and detection of the ultra-trace selenium in the complex matrix are successfully realized.

The invention belongs to the technical field of additive manufacturing, and particularly relates to a micron-sized full-laser additive and subtractive composite manufacturing method and composite manufacturing equipment. The composite manufacturing method comprises the following steps that S1, metal powder is filled, a powder laying scraper is calibrated, and inert gas is introduced; s2, a lifting table of the forming cylinder descends according to the preset layer thickness, a lifting table of the powder cylinder ascends synchronously, a powder spreading device is started, and the metal powder above the powder cylinder is spread in a machining area of the forming cylinder; s3, a continuous laser is started, melting forming is conducted on the metal powder in the machining area according to the scanning path, and forming of the current layer is completed; s4, starting an ultrafast pulse laser, and scanning the current layer prepared in the step S3; and S5, the steps S2-S4 are repeated until the target micro-size part is manufactured. According to the micron-sized full-laser additive and subtractive composite manufacturing method, micro-sized structural parts with micron-sized precision and high aspect ratio micropores, microgrooves or complex internal microarrays can be efficiently manufactured in a high-quality mode.

A micro-LED pixel includes: an integrated circuit (IC) backplane; a first light-emitting mesa disposed on the IC backplane; a second light-emitting mesa disposed above the first light-emitting mesa, a portion of the second light-emitting mesa not covering the first light-emitting mesa; a third light-emitting mesa disposed above the second light-emitting mesa, a portion of the third light-emitting mesa not covering either the first or second light-emitting mesa; a first bottom electrical connection structure configured to connect the bottom surface of a portion of the second light-emitting mesa to the IC backplane; a second bottom electrical connection structure configured to connect the bottom surface of a portion of the third light-emitting mesa to the IC backplane; and an optical isolation structure disposed around at least a portion of the micro-LED pixel.