35 results about "Micro pattern" patented technology

Disclosed in the present invention is a large-area printing and transferring method for a two-dimensional material micro-pattern array. The method comprises: preparing a two-dimensional material dispersion; fixedly attaching a mask engraved with a target two-dimensional material micro-pattern onto a porous polymer filter membrane; performing suction filtration and deposition on the two-dimensional material dispersion by means of a vacuum filtration device, so as to obtain a porous polymer filter membrane having the target two-dimensional material micro-pattern; and printing the target two-dimensional material micro-pattern onto a target substrate from the porous polymer filter membrane, and overturning the target substrate to separate same from the porous polymer filter membrane, so as to complete the transferring. The method for printing a two-dimensional material micro-pattern array and transferring same between different substrates as provided by the present invention is easy to operate, has high transfer efficiency and low costs, and can achieve large-area, high-precision, defect-free and patterned two-dimensional material manufacturing of a two-dimensional material micro-pattern array and pollution-free transferring of same between different substrates.

The invention discloses a preparation method of a metal surface micro-pattern texture, and belongs to the technical field of metal materials and machining thereof. The method comprises the following steps: S1, depositing a metal shading layer on a monocrystalline silicon wafer and patterning, spin-coating a polysiloxane precursor, curing and stripping to prepare a flexible transparent photoetching template; s2, conformally attaching a template to the cleaned bent metal surface, and performing ultraviolet exposure and development to form a cured photoresist mask; and S3, the metal workpiece with the mask serves as an anode, the metal workpiece with the mask is placed in HF-HCl mixed electrolyte for electrochemical etching, the voltage is controlled to be 2.0-5.0 V, the time is 2-8 min, and the micron-sized surface texture of 0.5-2.5 microns is obtained. And the thickness of the template is 0.3-3.0 mm, so that the template can adapt to metal surfaces with different curvature radiuses. According to the method, the photoetching-electrochemical etching process is successfully extended to the curved metal surface for the first time, the pattern fidelity is high, the texture depth is controllable, and the method can be widely applied to key parts, needing mechanical sealing and lubricating, of a carrier vehicle body.

The present disclosure relates to an aerosol-generating assembly. In some embodiments, an aerosol-generating assembly may include: a reservoir comprising an aerosol precursor composition; and an atomizer for receiving the aerosol precursor composition from the reservoir and heating the aerosol precursor composition to produce an aerosol. The aerosol-generating assembly may additionally include a body that directs the aerosol through the outlet. The body may include a surface containing a micropattern defining at least one of hydrophobic and antimicrobial properties. The micropattern-containing surface may not include chemical coatings that provide these properties. Instead, the surface may define a three-dimensional structure that provides hydrophobic and / or antimicrobial properties. Related methods of assembly are also provided.

The utility model provides a kind of micro pattern repair resistance device of ceramic metal film resistor, belong to micro-nano manufacturing technology field, including numerical control machine tool, support plate fixedly installed on the outer surface of numerical control machine tool, and ultraviolet laser is arranged to the outside of support plate;Self-locking mechanism, including the fixed frame fixedly connected to the outer surface of support plate, the connecting shaft fixedly installed in the inner surface of the fixed frame by bearing sleeve, the gear fixedly set in the outer end surface of the connecting shaft, the toothed plate engaged with the outer surface of the gear.The utility model can not only use the automatic gravity of ultraviolet laser to quickly install it by the cooperation between each component in self-locking mechanism, but also can automatically lock it after ultraviolet laser installation by locking assembly, so that ultraviolet laser can complete installation in a short time, and ensure that the laser after each replacement can be firmly locked.

The invention belongs to the technical field of electrical digital data processing, and discloses a design method for adaptively generating an optical micropattern based on substrate parameters, which comprises the following steps of: acquiring a non-uniform physical parameter diagram of an actual substrate, constructing an optical residual potential field for representing optical performance deviation on the basis of the non-uniform physical parameter diagram, and then, taking a reference pattern as an initial pattern, the method comprises the following steps: carrying out iterative optimization on a micro-pattern unit in a potential field, carrying out coordination on adjustment based on potential field gradient and smoothing correction based on neighborhood influence in each step of iteration, updating the potential field in real time, and finally, after iteration convergence, carrying out spatial derivation analysis on a final residual potential field to generate manufacturing tolerance guidance information. According to the method, the non-uniformity of the substrate is used as an internal constraint of design, and a closed-loop feedback system is used, so that a design result is matched with physical reality.

The invention relates to the technical field of laser welding, and discloses a femtosecond laser thin film precision welding system and method. According to the system and method, through dynamic energy density adjustment, self-adaptive light spot track planning, multi-material welding parameter collaborative optimization and real-time quality monitoring feedback, the problems that in existing femtosecond film welding, energy control is not accurate, light spot track adaptability is poor, and multi-material welding quality is not stable are solved. And through an innovative algorithm and system design, the welding precision, efficiency and material adaptability are remarkably improved, and an efficient solution is provided for high-precision thin film welding.

An electrode for a rechargeable battery according to one embodiment of the present invention comprises: a substrate including a micro-pattern formed of a plurality of holes; and an active material layer formed on the substrate, wherein the plurality of holes have a depth that decreases from the center of the substrate toward the edge.

The invention belongs to the technical field of preparation of anti-counterfeiting materials, and discloses a preparation method of micron-sized anti-counterfeiting particles and the micron-sized anti-counterfeiting particles. The preparation method of the micron-sized anti-counterfeiting particles comprises a base film preparation step, an imprint forming step and a laser cutting step, the base film preparation step comprises the steps of preparing a base film with a plurality of tightly combined sub-film layers through multi-layer casting co-extrusion, gradually decreasing / increasing the density of each sub-film layer in the normal direction of the base film layer, and carrying out subsequent imprint and laser cutting to obtain the micron-sized anti-counterfeiting particles. And a plurality of micron-sized anti-counterfeiting particles of which the surfaces are embedded with miniature patterns and the gravity centers deviate to the high-density side can be obtained. According to the method, the gravity center shift of the particles is realized by using the density difference, so that the particles are directionally arranged under the action of gravity or fluid force in ink printing, the micro pattern sides are uniformly outward, and the significance and reliability of anti-counterfeiting characteristics are remarkably improved. The invention correspondingly provides micron-sized anti-counterfeiting particles and application thereof in preparation of anti-counterfeiting ink.

A method for fabricating micro domes array according to an embodiment of the present invention includes forming a micro patterns array on a base substrate through a photolithography process, reflowing the micro patterns array to form micro dome patterns, forming a mold having concave curved surfaces corresponding to an inverse shape of the micro dome patterns, and forming a micro domes array using the mold. The micro domes array includes a base portion and a convex portion including micro domes protruding from a first surface of the base portion. A structural color is generated through retroreflection at convex surfaces of the micro domes.

The application discloses a preparation process of a directional sound-emitting folding display screen, which comprises the following steps: providing a folding screen, and integrally processing a vibrating substrate layer by adopting a 3D printing process; the lower end face of the folding screen far from a client is attached to the vibrating substrate layer to form a vibrating layer; an insulating layer is formed on the upper end face of the non-vibrating substrate layer close to the client, and a micro-pattern layer is formed on the upper end face of the insulating layer close to the client to form a non-vibrating layer; the micro-pattern layer is integrally processed by adopting a 3D printing process, a slit coating process or an exposure and development process; finally, the frame of the vibrating layer is attached to the frame of the non-vibrating layer; the vibrating layer vibrates and emits sound in the direction close to or far from the non-vibrating layer under the action of an ultrasonic signal loaded from outside. The application has the advantages of high reliability, lower cost, wider application range, higher precision and flexibility and the like.

The application discloses a flexible piezoresistive sensor with a structure-adjustable matching layer and application thereof. The flexible piezoresistive sensor comprises a packaging layer and a sensing layer; the sensing layer comprises a sensitive layer and a matching layer; the matching layer is constructed into a preset micro-pattern support network through a programmable electrostatic direct writing printing process. A gradient distribution of a conductive filler content gradually decreases from the sensitive layer to the matching layer in a thickness direction of the sensing layer. Through the geometric microstructure design of the matching layer and the material gradient distribution, the mechanical response and sensitivity of the sensor are significantly improved. The matching layer effectively guides stress redistribution on a microscale, avoids stress concentration, and improves the stress uniformity of the sensitive layer, so that balanced and efficient response of the piezoresistive signal is realized. By adjusting the structure morphology and thickness of the matching layer, the balance between the rigidity and the sensitivity of the sensor can be precisely adjusted without changing the material composition of the sensitive layer, and the mechanical strength and long-term stability are improved.

This invention discloses an interventional surgical compression hemostasis system with adaptive decompression and bleeding monitoring functions, relating to the field of bleeding monitoring technology. It includes a main control module (MCU microcontroller) that performs system self-tests and acquires surgical site parameters, outputting a device ready signal; an execution module that performs physical fixation via a contour-following fixation module, outputting stable and fixed compression head position information; a construction module that utilizes micro-patterned channels on the surface of a transparent compression pad to guide bleeding to the monitoring area, constructing a high signal-to-noise ratio optical monitoring environment for bleeding, and outputting optimized monitoring signals; and a control module that, based on hand site parameters and the optimized monitoring signals, controls a micro-drive component to establish initial compression force, which is maintained via feedback from a pressure sensing unit. This achieves precise decompression highly matched to the individual's physiological repair process, effectively avoiding the risks of insufficient hemostasis or excessive compression caused by traditional fixed-time decompression.

The directional sound production folding display screen comprises a vibration layer and a non-vibration layer, the vibration layer comprises a folding screen and a vibration base material layer, and the vibration base material layer is integrally machined and formed through a 3D printing technology and arranged on the lower end face, away from a client side, of the folding screen; the non-vibration layer comprises a non-vibration base material layer, an insulating layer and a micro-pattern layer, and the insulating layer is arranged on the upper end face, close to the vibration layer, of the non-vibration base material layer; the micro-pattern layer comprises a plurality of insulating salient points formed on the upper end surface, close to the vibration layer, of the insulating layer, and is integrally processed and formed by adopting a 3D printing or slit coating or exposure developing process on a resin layer doped with aluminum oxide nanoparticles. The directional sound production folding display screen can be completely folded, the overall working reliability of the product is improved, and the directional sound production folding display screen has the advantages that the development period is remarkably shortened, the cost is lower, the application range is wider, and the precision and flexibility are higher.

The present application relates to a micro pattern making vibration cutting device, more specifically, comprising: a cutting part capable of processing the surface of a workpiece; and a shaking part connected with the cutting part, for generating vibration, the shaking part makes the cutting part that performs cutting processing on the workpiece vibrate, to perform vibration-based pattern processing on the surface of the workpiece. Moreover, according to the present application, the present application has the following effects: the micro pattern processing on the surface of the workpiece can be accurately performed, and the responsiveness of the cutting blade that generates vibration can be improved.

The application discloses a micro high-precision perovskite erasable circular polarization patterning device and a preparation method thereof. The micro high-precision perovskite erasable circular polarization patterning device comprises, from top to bottom, the following structures: a cholesteric liquid crystal layer, a transparent separation layer, a light-emitting pattern layer and a substrate. The micro high-precision perovskite erasable circular polarization patterning device utilizes the ultra-high peak intensity of femtosecond laser and the digital processing characteristics of a laser direct writing system to realize high-precision micro patterning in a specified area of a perovskite thin film, and the pattern is only visible in fluorescence, and the pattern disappears after heat treatment; meanwhile, the device has high precision and excellent fluorescence characteristics, and has wide application prospects in the fields of information encryption, optical switches and multiple anti-counterfeiting.

This invention relates to the fields of microelectronics manufacturing and precision surface engineering, comprising: a laser unit for generating and controlling a laser beam, an electrodeposition unit for providing an electric field, a detection unit for real-time online monitoring of coating thickness and edge contour, and a control unit for dynamically adjusting laser and electrochemical parameters based on monitoring data. The process steps include: substrate pretreatment, plating solution preparation, intelligent matching of initial parameters based on the target linewidth, adaptive closed-loop deposition, and post-processing. During deposition, by real-time detection of coating thickness and edge overflow, the control unit dynamically adjusts the laser single-pulse energy, scanning speed, and current density to compensate for process disturbances. This invention solves the problems of low pattern accuracy, poor edge localization, and weak process adaptability in existing technologies, achieving high-precision micro-pattern fabrication with linewidth accuracy controlled within ±1% and edge overflow ≤0.5μm, thus improving process stability and product yield.

The application discloses a two-dimensional material patterning method based on mask-assisted suction filtration and displacement overlay transfer, which comprises the following steps: constructing a patterning barrier layer on a porous filter membrane substrate by using a first mask, making two-dimensional material deposit in a limited area by vacuum-assisted suction filtration, and forming a two-dimensional material pre-pattern; forming a local protection layer on a target substrate by using a second mask and performing surface treatment, constructing a surface energy difference area on the substrate surface, and obtaining a surface treatment pattern, wherein the surface treatment pattern comprises a hydrophilic high-surface-energy target area and a hydrophobic low-surface-energy background area; turning over the porous filter membrane substrate and aligning and adhering the porous filter membrane substrate to the target substrate in a staggered manner, so that the two-dimensional material pre-pattern and the high-surface-energy target area form a local overlapping window, the overlay transfer is realized on the target substrate, and a high-resolution two-dimensional material micro-pattern defined by the local overlapping window is obtained. The method can obtain a high-resolution or special-shaped micro-pattern.

This invention discloses a directional sound-emitting foldable display screen, comprising a vibrating layer and a non-vibrating layer. The vibrating layer includes a foldable screen and a vibrating substrate layer, which is integrally formed using 3D printing and disposed on the lower end surface of the foldable screen away from the user. The non-vibrating layer includes a non-vibrating substrate layer, an insulating layer, and a micro-patterned layer. The insulating layer is disposed on the upper end surface of the non-vibrating substrate layer near the vibrating layer. The micro-patterned layer consists of multiple insulating bumps formed on the upper end surface of the insulating layer near the vibrating layer, and is integrally formed by using 3D printing, slot coating, or exposure and development processes to form a resin layer internally doped with alumina nanoparticles. This invention achieves full foldability of the directional sound-emitting foldable display screen while improving the overall operational reliability of the product, and has advantages such as significantly shortened development cycle, lower cost, wider applicability, and higher precision and flexibility.

The utility model relates to liquid food packaging technical field provides a cover body structure, bottle body and be used for preparing cover body structure's production line, the utility model discloses: substrate layer, the surface is provided with microstructure, super water repellent coating is arranged in the one side surface of substrate layer with microstructure, and at least partial or all covers microstructure, wherein, microstructure is the micro pattern and / or three -dimensional body of setting in substrate layer surface, the utility model discloses the surface preparation microstructure of substrate layer, and set up super water repellent coating on the microstructure surface, and super water repellent coating and microstructure intercalate each other, make the combination between substrate layer and super water repellent coating more closely, increase the fastness degree of super water repellent coating on the surface of substrate layer, avoid falling off because of external force, have higher wear resistance and pressure reduction, wherein, microstructure includes two forms of micro pattern and three -dimensional body, can satisfy the use demand of different packaging material.

The invention relates to a micro-optical structure and a preparation method thereof and a decorating part, the micro-optical structure comprises a pattern layer and a micro-lens layer which are arranged in a stacked mode, the pattern layer comprises a plurality of micro-patterns, the micro-lens layer comprises a plurality of micro-lenses which are arranged in one-to-one correspondence with the micro-patterns, and the micro-lenses are arranged on the pattern layer. The plurality of micro patterns form a preset pattern with a suspension effect after being projected by the plurality of micro lenses, at least part of the micro patterns are at least part of the preset pattern after being zoomed, and the zooming proportion of the micro patterns relative to the preset pattern is set according to the suspension height of the preset pattern. According to the micro-optical structure, the multi-layer, diversified and complicated suspension visual effect can be achieved, different scenes and individual requirements are met, the overall visual attraction, impact force and artistic expressive force of the decoration effect are greatly enhanced, the product competitiveness is improved, and good visual experience is brought to a user.

The invention discloses a metamaterial honeycomb and a preparation method thereof, and relates to the technical field of honeycombs, and the preparation method comprises the steps: S1, preparing a copper circuit pattern on a PI film through laser maskless photoetching; s2, node glue is applied to related positions of the copper circuit pattern; s3, combining the PI film with the glue layer coated with the node glue in a stacking hot-pressing manner; s4, curing the cellular board formed by the node glue; s5, stretching and shaping the honeycomb plate to form a honeycomb shape; and S6, carrying out gum dipping and curing on the stretched and shaped honeycomb to obtain the metamaterial honeycomb. According to the method, the idea of patterning first and then integrating the honeycomb is adopted, a traditional post-etching method is replaced, meanwhile, a laser direct writing method is used for replacing a traditional conductive ink spraying mode, the technical problems that honeycomb hole grid wall micropatterns are unstable, combination is poor and the like can be effectively solved, and the method has the advantages of being convenient to implement and high in conductive reliability; and the hole walls of the honeycomb grids have the advantage of stable microstructure patterns.

A passive, non-electronic wearable device (100) provides real-time visual biofeedback of soft tissue (130) elongation to prevent overstretch injuries. The device (100) comprises an elastic base layer (110) having a first periodic micro-pattern (112) and an elastic overlay layer (120) having a second periodic micro-pattern (122). The layers are superimposed and configured to elongate synchronously with the underlying soft tissue (130). When the soft tissue (130) reaches a predetermined biomechanical strain threshold, such as 22 to 34 percent elongation corresponding to a pre-pain safety limit, the relative geometric displacement between the first micro-pattern (112) and the second micro-pattern (122) generates a macroscopic Moiré interference pattern (140). This optical-mechanical interference visually exposes a hidden warning indicator (114) without requiring electronic components, power sources, or external sensors. The system can be integrated into athletic garments or worn as a standalone band.

The present disclosure relates to patterned photonic crystals. Provided photonic crystals are large scale silk inverse opals with tunable, geometrically defined structural color. Provided photonic crystals exhibit structural color or a photonic band gap (“PBG”). Provided photonic crystals are is found to be highly sensitive to water vapor and UV irradiation. Provided multicolored photonic macro- or micro-patterns are shown by selectively applying water vapor or UV irradiation through a shadow mask. The present disclosure also provides methods for making and using the same.

Security element transfer materials for transferring security elements have a microoptical authenticity feature to an article of value. The microoptical authenticity features create an optical effect by interaction of a first microoptical arrangement having focusing elements with a second microoptical arrangement having micromotif elements. The security element transfer material has a temporary carrier in the form of a layer composite material. The temporary carrier consists of a first temporary carrier substrate and a second temporary carrier substrate, which may be inextricably adhesive-bonded by means of an adhesive layer. The outline shapes of the security elements to be transferred are incised or have been precut. The second temporary carrier substrate is not cut, such that the temporary carrier can be separated off as a complete carrier layer composite. A permanent carrier is bonded inextricably to the microlenses. A transfer adhesive enables adhesion to the final substrate of the article of value.

Compositions and methods for the simulataneous capture and release using micropattern surfaces for tissue and cell microdissection. In one example, a patterned thermoplastic film has a first surface and a plurality of projections attached to and extending outwardly from the first surface. The projections form a pattern on the thermoplastic film.

The utility model discloses a directional sound production folding device and electronic equipment, the directional sound production folding device comprises a vibration layer, a substrate layer and a micro-pattern layer, the frame of the vibration layer and the frame of the substrate layer are attached, and an air gap is formed between the vibration layer and the substrate layer through the micro-pattern layer; the vibration layer vibrates and produces sound in the direction close to or away from the substrate layer under the action of an externally loaded ultrasonic signal; the directional sound production folding device comprises a plurality of sound production parts distributed in the first direction and at least one folding part, every two adjacent sound production parts are connected through one folding part, and the sound production parts are folded in the direction away from or close to the client till the sound production parts adjacent to the sound production parts are stacked in the second direction. According to the utility model, the UTG is adopted as the base layer of the vibration layer and the substrate layer, and the combination design of other functional structures of the directional sound production device is adopted, so that the directional sound production folding device which can be completely folded in at least one folding direction is prepared, and the advantages of small size, convenience in carrying and the like are realized while the large-screen sound production of the directional sound production device is realized.

The application discloses a device and method for preparing three-dimensional microstructure by micro-projection. The device comprises a pattern generator, a pattern display, a projection light source, a collimating lens, a converging lens, a micro objective, a sample substrate and a Z-axis motion platform. The pattern display, the projection light source, the collimating lens, the converging lens and the micro objective form an optical system. The projection light source generates light of a specific wavelength to control the curing of liquid light-curing material in the form of a micro-pattern. The relative position between the sample substrate and the micro objective is controlled by the Z-axis motion platform, and the pattern generator generates a pattern corresponding to the position to generate a specific three-dimensional microstructure. The application combines digital light processing and liquid crystal display printing to realize light-curing printing forming of three-dimensional microstructure with micron-level precision. The application is simple and easy to realize, the preparation method does not need strict environmental control, and the manufacturing cost of high-precision three-dimensional microstructure is reduced.