409 results about "Composite substrate" patented technology

The invention belongs to the technical field of folding screens, and discloses an optical conductive film for a folding screen and a preparation method thereof.The optical conductive film for the folding screen comprises a composite base material, an interface transition layer, a gradient refractive index optical adjustment layer, a hybrid conductive layer and a scratch-resistant wear-resistant layer which are sequentially stacked from bottom to top; the composite base material is a blending modification layer of polyimide and transparent polyamide, the hybrid conductive layer is formed by compounding silver nanowires, a graphene sheet layer and PEDOT: PSS according to a preset proportion, and the refractive index of the gradient refractive index optical adjustment layer is gradually reduced in the direction away from the composite base material. And the difference value between the refractive index of the gradient refractive index optical adjustment layer and the refractive index of the hybrid conductive layer is not greater than 0.05. The mechanical stability, the light transmission efficiency, the conductive stability, the scratch resistance and the wear resistance of the film are improved, the performance is stable after folding circulation, the use requirements of a folding screen are met, and application in different scenes can be met.

The invention discloses a high-solid-content MIL-101 (Fe) / PIM-1 mixed matrix membrane and a preparation method thereof, and belongs to the technical field of gas separation membranes. The preparation method comprises the following steps: firstly, dissolving an iron source in a PIM-1 polymer solution to form a homogeneous membrane casting solution; forming the obtained membrane casting solution, and removing the solvent to obtain a PIM-1 / Fe (II) composite substrate containing Fe (III); then, the substrate is alternately immersed in a terephthalic acid methanol solution and a ferric salt methanol solution, and MIL-101 (Fe) is generated in the polymer matrix through in-situ limited crystallization by layer-by-layer limited crystallization. According to the method, the problem of interfacial compatibility between the MOF filler and the polymer matrix is effectively solved, and high loading capacity (up to 52.9 wt.%) of MIL-101 (Fe) is realized without agglomeration. Meanwhile, the membrane has excellent COplasticizing resistance and long-term operation stability, and has a wide application prospect in the fields of carbon capture and the like.

The invention discloses a biodegradable flexible conductive high-hydrophobicity sensor substrate and a preparation method and application thereof.The preparation method comprises the steps that a polylactic acid electrostatic spinning solution and a chitosan / polyethylene oxide mixed electrostatic spinning solution are prepared on the basis of a safe and non-toxic food-grade material; the preparation method comprises the following steps: sequentially spinning by adopting an electrostatic spinning technology to form a sandwich structure flexible substrate, transferring a carbon nano tube conductive film, and tightly attaching the carbon nano tube conductive film to the surface of a polylactic acid layer of the sandwich structure substrate, thereby finally obtaining the flexible conductive high-hydrophobicity composite substrate. According to the invention, a hydrophobic-hydrophilic-hydrophobic sandwich structure is constructed through multi-layer electrostatic spinning, and a surface carbon nanotube conductive layer is cooperated, so that the substrate has high hydrophobicity, excellent conductivity and flexible tensile property. The preparation method has the characteristics of controllable process, low cost and environmental friendliness, and the obtained substrate is expected to have wide application prospects in the fields of food packaging, sensor substrates, intelligent wearing, health monitoring and the like.

The invention discloses an aluminum nitride composite substrate, a preparation method thereof and a semiconductor device. The preparation method comprises the following steps: sequentially forming a sacrificial layer and an aluminum nitride epitaxial layer on a heterogeneous substrate; temporarily bonding a supporting substrate on the aluminum nitride epitaxial layer through bonding glue to obtain a first bonding structure; dissociating the sacrificial layer to separate the heterogeneous substrate of the first bonding structure from the aluminum nitride epitaxial layer to obtain a second bonding structure exposing a first separation surface of the aluminum nitride epitaxial layer; bonding a polycrystalline aluminum nitride ceramic substrate on the first separation surface of the aluminum nitride epitaxial layer to obtain a third bonding structure; dissociating the bonding glue to separate the supporting substrate and the aluminum nitride epitaxial layer in the third bonding structure to obtain a fourth bonding structure exposing a second separation surface of the aluminum nitride epitaxial layer; and growing an aluminum nitride single crystal wafer on the second separation surface of the aluminum nitride epitaxial layer to obtain the aluminum nitride composite substrate. By adopting the scheme, the high-quality aluminum nitride composite substrate can be prepared.

This application relates to a polycrystalline diamond composite substrate, belonging to the technical field of superhard material composites. It includes a cylinder with one end serving as a bonding surface; a frustum located at one end of the bonding surface, comprising a truncated cone coaxially transitioning onto the cylinder and a frustum coaxially connected to the truncated cone; and a raised structure disposed on the frustum, comprising multiple sets of coaxially arranged raised units, each set of raised units being evenly distributed in a ring around the center of the bonding surface, with grooves formed between adjacent raised units, the grooves being concentric with the bonding surface. This application allows external forces applied to the composite to be more evenly distributed across different parts of the substrate, avoiding localized stress concentration. The raised structure increases the contact area between the substrate and the diamond layer, significantly enhancing the adhesion between them. During drilling, the diamond layer adheres more firmly to the substrate, reducing the risk of premature detachment of the diamond layer due to external forces.

The method for manufacturing a composite substrate includes: forming an intermediate layer on a support substrate; respectively irradiating FAB on the surface of the piezoelectric material substrate and the surface of the intermediate layer formed on the support substrate; the surface of the piezoelectric material substrate is further irradiated with FAB, and a sputtering film containing the material of the piezoelectric material substrate is formed on the surface of the middle layer; a bonding step for bonding the piezoelectric material substrate and the intermediate layer on which the sputtering film is formed to obtain a bonded body having the waveguide substrate; and irradiating the joined body with laser light along the surface direction of the composite substrate, and forming the composite substrate using the joined body irradiated with the laser light.

The invention discloses a fishway observation window and a preparation method thereof, belongs to the technical field of ecological monitoring, and can solve the problems that a traditional fishway observation window lacks a long-acting anti-fog function, the biological adhesion problem is serious, and the function integration degree is low. The fishway observation window comprises a transparent composite substrate; the conductive anti-fog layer is embedded in the middle of the transparent composite substrate and is used for raising the temperature to a preset temperature after being electrified, and the preset temperature is higher than the air dew point temperature; the biological corrosion resistant coating is arranged on the surface of one side of the transparent composite substrate; the anti-biological-corrosion coating comprises a plurality of convex structures, and each convex structure is formed by spraying an anti-biological-corrosion material and then curing the anti-biological-corrosion material; the hydrophobic coating is arranged on the surface of the side, away from the transparent composite substrate, of the biological corrosion resistant coating and covers the biological corrosion resistant coating. The invention is used for the fishway observation window.

The invention discloses a gluing and gradient low-temperature pressing process for paper-plastic packaging, which comprises the following steps: S1, pretreating a base material: inspecting a printed paper-plastic composite base material, placing in a constant-temperature and constant-humidity environment for 20-24 hours, and balancing the moisture content to 5-7%; the base material is placed on a production line of a bag making machine, and the easy-to-tear line is formed through a magnetic knife; s3, point coating type gluing is conducted, specifically, a concave-convex tooth-shaped gluing roller is adopted, the heat sealing face of the paper-plastic composite base material is coated with the POE / PLA composite hot melt adhesive, and the gluing amount is 2.2-2.6 g / m < 2 >; and S4, pre-crosslinking treatment is conducted, specifically, UV irradiation is conducted on the glued base material, the irradiation wavelength is 254 nm, the irradiation time is 0.1-0.2 s, and the surface of the glue layer is preliminarily cured. The paper-plastic packaging gluing and pressing process which is low in gluing amount and gradient in low-temperature pressing, has an antibacterial function and is matched with a thin paper base material is adopted, and the paper-plastic packaging gluing and pressing process has the advantages of being low in glue overflowing rate, high in product percent of pass, capable of improving sanitation performance, stable in bonding performance and better in environmental protection performance.

The invention discloses a sustained and controlled release value-added fertilizer containing a bioactive carrier and a preparation method of the sustained and controlled release value-added fertilizer, and belongs to the technical field of sustained and controlled release fertilizers. The slow / controlled-release value-added fertilizer is prepared by compounding a bioactive carrier and an NPK compound fertilizer, wherein the bioactive carrier is prepared from three parts, namely a charcoal-layered double-metal hydroxide composite base material, interlayer intercalation phosphate radicals and surface-loaded humic acid. High-amount uniform loading of layered double hydroxides on the surface of biochar is achieved through a hydrothermal in-situ growth technology, phosphate radicals are stably embedded between layers in a subject-object composite mode, and a humic acid active component is combined to form a novel value-added fertilizer with multiple functions of nutrient slow release, soil improvement and growth stimulation. The fertilizer utilization rate is effectively improved, and the nutrient loss risk is reduced.

The utility model discloses a composite multimode waveguide structure, which belongs to the technical field of optoelectronic devices and comprises a plasmon unit made of a metal material or a material with a negative real part dielectric function. The plasmon unit is structurally characterized by comprising nanoparticles, nanowires, nanopore arrays or gradient structures; the dielectric waveguide is made of a semiconductor material with a high refractive index, and the dielectric waveguide is designed to be one of a strip-shaped waveguide, a ridge-shaped waveguide or a slit waveguide; and the substrate layer is located below the plasmon unit and the dielectric waveguide and comprises at least one low-refractive-index supporting layer, and the material system of the low-refractive-index supporting layer is one of an oxide material, a nitride material, a fluoride material or a composite substrate structure. According to the scheme, the contradiction of a plasma device and silicon photonics among mode degree of freedom, loss and process compatibility is solved.

This composite substrate has: a functional substrate comprising a functional material; a support substrate that is formed from a semiconductor material or an insulator material, is bonded to the functional substrate, and supports the functional substrate; and a bonding layer disposed between the functional substrate and the support substrate. The bonding layer, or the bonding layer and one of either the support substrate or the functional substrate, contains impurities internally, and a maximum value of the content of the impurities exists at two locations in the depth direction.

A metal composite substrate suitable for forming a casing through stamping and bending is provided. The metal composite substrate includes a metal layer, an adhesive layer, and an appearance decoration layer. The metal layer has a first surface, a second surface opposite to the first surface, and a groove recessed in the first surface. The adhesive layer is disposed on the second surface. The appearance decoration layer is disposed on the adhesive layer and is attached to the metal layer through the adhesive layer. The casing formed from the metal composite substrate by stamping and bending has a bending chamfer, which includes a bending outer angle and a bending inner angle. A positive draft angle or a negative draft angle is formed at the bending outer angle, and the groove is located at the bending inner angle.

The present invention relates to a Si composite substrate for GaN growth and a method for producing same, in which AlN layers for suppressing the melt-back etching phenomenon are configured as multiple layers each formed in a different manner, thus making it possible for the AlN layers and an AlGaN transition layer to be thinner and the crystal quality of a GaN layer to be improved.

The present application belongs to the technical field of plant tissue culture, and particularly relates to a high-efficiency rooting and seedling raising method for plant tissue culture seedlings, S1 trimming and disinfection of S2 induction liquid immersion, S3 composite substrate implantation and gradient environment regulation, S4 substrate transplanting and planting; the core is to use modified magnetic biochar composite substrate loaded with FeO nanoparticles, cooperate with the synergistic effect of microencapsulated rooting hormone and melatonin, realize in-situ integrated seedling raising through composite spectrum containing UV-A, CO pulse supply, gradient humidity and PEG osmotic pressure domestication. The present application effectively inhibits basal browning, shortens the seedling raising period, improves the rooting quality and transplanting survival rate, overcomes the pollution prejudice of magnetic nanoparticles, is suitable for woody and herbaceous plants, and can be applied to plant tissue culture seedling production on a large scale.

A transducer structure for a surface acoustic device comprises a composite substrate comprising a piezoelectric layer, a pair of inter-digitated comb electrodes, comprising a plurality of electrode means with a pitch p satisfying the Bragg condition, wherein the inter-digitated comb electrodes are embedded in the piezoelectric layer such that, in use, the excitation of a wave propagating mode in the volume of the electrode means is taking place and is the predominant propagating mode of the structure. The present disclosure relates also to an acoustic wave device comprising at least one transducer structure as described above and to a method for fabricating the transducer structure. The present disclosure relates also to the use of the frequency of the bulk wave propagating in the electrode means of the transducer structure in an acoustic wave device to generate contribution at high frequency, in particular, above 3 GHz.

Provided are a composite substrate for an all-solid-state battery having excellent sulfation resistance and high-temperature life characteristics, and a negative electrode including the same.SOLUTION: The present disclosure relates to a composite substrate for an all-solid-state battery, a negative electrode for an all-solid-state battery including the same, and an all-solid-state battery. More specifically, the composite substrate for an all-solid-state battery of the present disclosure includes a polymer layer, a first nickel alloy layer on a first surface of the polymer layer, and a second nickel alloy layer on a second surface of the polymer layer, wherein each of the first and second nickel alloy layers includes a nickel-iron binary alloy.SELECTED DRAWING: Figure 4

The invention provides a composite substrate and a preparation method thereof, relates to the technical field of semiconductor chips, and solves the problem that a laser lift-off method is relatively low in utilization rate of a blank crystal ingot. The preparation method of the composite substrate comprises the steps of first bonding, first modification, first lift-off, second bonding and second lift-off; first bonding: bonding the first substrate and the second substrate; first modification: forming a plurality of modified layers on the first substrate, and forming the plurality of modified layers at different laser scanning intervals; first stripping: separating at the first target modified layer by using ultrasound to obtain a target substrate; the first target modified layer is the modified layer with the minimum laser scanning interval in the multiple modified layers; second bonding: bonding the target substrate with the third substrate to obtain an initial composite substrate; second stripping: separating at a second target modified layer of the initial composite substrate by using ultrasound; the modified layer with the minimum laser scanning interval is a second target modified layer. In the stripping step, the composite substrate is obtained.

The invention relates to the field of coal graded conversion and utilization, in particular to a method for preparing a graphene battery electrode from coal tar with low energy consumption. According to the preparation method, coal tar serves as a carbon source, graphene grows on the surface of foam metal in situ at the low temperature of 300-900 DEG C, and a graphene-metal composite substrate is formed and used for synthesizing the self-supporting electrode material; according to the preparation method, continuous production is realized by a set of continuous production system. According to the method, the energy consumption of graphene electrode production is reduced through the process of growing graphene at low temperature through coal tar, the traditional coating step is omitted, a binder and a conductive agent are not needed, and the prepared electrode shows high specific capacity and low charge transfer impedance.

The utility model discloses a multifunctional gardening ground inserting board, which belongs to the field of ground inserting boards and comprises an aluminum-plastic composite base material, and a rare earth activated luminous coating is coated on the surface of the aluminum-plastic composite base material. A transparent photo interlayer is arranged on one side of the front side wall of the aluminum-plastic composite base material, and a permanent character mark is arranged on the other side of the front side wall of the aluminum-plastic composite base material. The transparent photo interlayer is of an opening structure, a dovetail groove is formed in the upper end face of the aluminum-plastic composite base material, an inserting strip matched with the dovetail groove is arranged on the dovetail groove in a sliding mode, and a notch is formed in the position, located above the transparent photo interlayer, of the upper end face of the aluminum-plastic composite base material. An insertion rod is arranged at the lower end of the aluminum-plastic composite base material. The noctilucent coating and the transparent photo interlayer are additionally arranged on the multifunctional gardening ground inserting board, three-in-one of character identification, noctilucent display and image display is achieved, the application scene is rich, and the display content is more comprehensive.

The utility model discloses a patterned composite substrate and an LED chip. The patterned composite substrate comprises a patterned base layer and a composite layer arranged on the patterned base layer. The graphical base layer comprises a sapphire substrate and a plurality of sunken structures arranged on the surface of the sapphire substrate, and the sunken structures are in a non-penetrating state on the sapphire substrate; the composite layer comprises a first SiO2 layer and a second SiO2 layer, the first SiO2 layer and the second SiO2 layer are periodically and alternately arranged, the first SiO2 layer is arranged on the surface of the sapphire substrate, the concave structure is filled with the second SiO2 layer, and the first SiO2 layer is connected with the second SiO2 layer. By implementing the LED epitaxial wafer, the reflection of light can be increased, the luminous efficiency of the LED epitaxial wafer can be improved, the working temperature of the chip can be reduced, and the reliability and the stability of the device can be improved.

The utility model belongs to the technical field of ecological breeding equipment, and particularly relates to an in-water circulation ecological breeding barrel which is detachably arranged in a breeding pond, a plurality of breeding holes are circumferentially formed in the bottom of the breeding barrel, water permeable holes are circumferentially formed in the top of the breeding barrel, and a multi-layer composite substrate layer sequentially comprises a first soil layer, a second soil layer and a third soil layer from bottom to top, the first soil layer comprises soil and earthworm soil, and the earthworm soil contains active earthworm groups; the second soil layer comprises coco coir, perlite and vermiculite; the third soil layer comprises peat, perlite and vermiculite; the fourth soil layer comprises peat and vermiculite, and the biological-physical synergistic purification system has the beneficial effects that biological-physical synergistic purification is achieved, and the self-purification capacity of the system is improved.

This method for manufacturing a composite substrate comprises: a step for obtaining a joined body by plasma-activating and joining a piezoelectric substrate and a silicon oxide layer formed on a main surface of a support substrate; a step for heating the obtained joined body to a predetermined first temperature and grinding the piezoelectric substrate to a predetermined thickness; a reheating step for reheating the joined body, in which the piezoelectric substrate has been ground, to a predetermined second temperature higher than the first temperature; and a regrinding step for further grinding the piezoelectric substrate in the joined body that has undergone the reheating step. The reheating step and the regrinding step are each repeated one or more times to form a composite substrate in which the support substrate and a piezoelectric layer comprising a piezoelectric material are joined via the silicon oxide layer.

The invention belongs to the technical field of variable optical films, discloses a multifunctional composite variable optical film and a preparation method thereof, and aims at solving the problems that an existing variable optical film is single in function, unstable in optical performance, poor in flexibility and bending resistance and low in process precision. The preparation method comprises the following steps: pre-treating the base material: sequentially carrying out plasma cleaning on the PET base material and sputtering the ITO conductive layer, sequentially carrying out ultrasonic cleaning on the glass substrate and preparing the YAG powder enhancement layer; the coating of the functional layer is that the surface of the ITO layer of the PET-ITO composite base material is coated with a PDLC layer and an electrochromic layer, and the surface of the YAG layer of the YAG-glass composite base material is coated with a temperature-sensitive layer; the compounding and curing are as follows: firstly laminating after aligning and compounding, and then carrying out UV segmented curing. The light transmittance of the product can be adjusted by 5-95% in an electric field, and the infrared reflectivity is gt; and after the ITO layer is bent for 1000 times and the bending radius is 5mm, the resistance change rate is less than or equal to 10%, so that the ITO film is suitable for a sunshade film for a vehicle and an intelligent window of a building.

The application relates to the technical field of laser packages, in particular to an in-situ optical shaping VCSEL array integration method and an optical interconnection module, which comprises the following steps: S1, a quartz substrate is used, a femtosecond laser pulse is focused and scanned in the quartz substrate, and a three-dimensional profile of a micro hole is defined in advance; S2, a VCSEL chip is precisely placed into the micro hole in an array arrangement with the VCSEL chip facing upwards, and epoxy resin is cured by heating; S3, a metal layer is sputtered on the quartz substrate, and an electrical interconnection track is formed through photolithography; S4, a two-photon polymerization direct writing system is used to initiate two-photon polymerization of photoresist, solidification is realized, and the production of a polymer lens is completed. The application selects fused quartz glass as the only passive integrated substrate; the substrate has four characteristics of optical transparency, electrical insulation, thermal stability and three-dimensional micro machining at the same time, replaces the multilayer composite substrate in a traditional scheme at one time, and realizes the original integration design basis of an optical path, an electrical circuit and a thermal path.

This utility model relates to a layered, bend-resistant composite substrate light strip in the field of composite substrate light strips. It includes a PI film layer, LED beads evenly spaced on the upper end of the PI film layer, a wavy stainless steel wire mesh layer on the lower end surface of the PI film layer, a honeycomb-shaped perforated layer on the lower end surface of the wavy stainless steel wire mesh layer, a silicone buffer layer at the lower end of the honeycomb-shaped perforated layer, and V-shaped stress relief grooves evenly distributed at the bending points on the upper end surface of the PI film layer. Semi-circular silicone covers are provided on the solder joints at both ends of the LED beads. This utility model achieves multi-layered buffering and stress dispersion through the wavy stainless steel wire mesh layer, honeycomb-shaped perforated layer, and silicone buffer layer. Combined with the V-shaped stress relief grooves to guide stress and the semi-circular silicone covers to protect the solder joints, it enhances the substrate's bend resistance, solving the problems of easy damage and short lifespan of traditional light strips, and is suitable for complex environments.

The utility model discloses an unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized knife-shaped antenna, which comprises an antenna base and a composite substrate riveted on the antenna base, an upper oscillator and a lower oscillator are arranged on a first side surface of the composite substrate at intervals, a coupling oscillator is arranged on a second side surface of the composite substrate, and the coupling oscillator is connected with the antenna base. The antenna base is provided with a socket, the socket is connected with a coaxial cable, an outer conductor of the coaxial cable is welded with the lower oscillator, and an inner conductor of the coaxial cable is welded with the upper oscillator; on the basis of realizing a light-weight and small-volume structure, the antenna structure can have the performances of wide beam and high gain.

A composite substrate includes a polymer layer extending in a first direction, and a first metal layer and a second metal layer on opposite sides of the polymer layer, respectively, the opposite sides of the polymer layer being spaced apart from each other in a second direction that is a thickness direction of the polymer layer, wherein each of the first metal layer and the second metal layer protrudes farther than an end of the polymer layer, and wherein a first protrusion protruding from the first metal layer and a second protrusion protruding from the second metal layer are joined to each other.

This invention discloses a smart responsive flame-retardant polypropylene foamed beads, its preparation method, and its application, specifically relating to the field of flame-retardant polymer foam materials technology. The preparation method includes firstly, co-extruding a skin melt and a core melt into a composite die to form a core-skin structure melt strip with the core melt as the core and the skin melt as the skin. The core-skin structure melt strip is then pelletized to obtain composite PP substrate microparticles. These microparticles are then placed in an EPP autoclave foaming equipment, where they undergo impregnation and stirring, programmed pressure relief, crushing, centrifugal drying, and fluidized bed drying to obtain composite EPP foamed beads. This invention, through the synergistic design of core-skin functional partitioning and smart responsive components, transforms the traditional passive and dispersed flame-retardant mode into an active and centralized high-efficiency barrier mode, achieving intelligent and efficient flame retardancy.

When the human society enters the highly informationized era, instant uninterrupted communication between electronic devices is everywhere, which causes innovative application of the 5G / 6G communication technology in work and life, such as automobile automatic driving, virtual / augmented reality, digital logistics and the like. The development of the technologies also continuously improves the performance requirements of the low-dielectric composite material, such as high frequency, high speed and low loss, which are the key points of the current research. The invention provides preparation of a polytetrafluoroethylene-based quartz fiber low-dielectric composite material, quartz fibers and polytetrafluoroethylene resin are used as a reinforcement and a matrix, the resin content of a composite material substrate is regulated and controlled by adopting a multi-impregnation mode, and surface defects of the composite substrate are repaired through polydopamine deposition. The polytetrafluoroethylene-based quartz fiber low-dielectric composite material prepared by the invention is high in strength, has low dielectric constant and dielectric loss in a high-frequency environment, is simple in preparation process, and can meet wave-transparent performance requirements and packaging requirements of a new generation of communication technology and related equipment.

This invention discloses a SiC with an ultra-high temperature ceramic gradient coating. f / SiC composite materials, their preparation methods, and applications. A double-layer glow discharge plasma surface metallurgical method is used to prepare SiC composite materials. f A (Hf,Si,Ta)C gradient composite coating was prepared on the surface of the SiC composite material. This coating was able to resist SiC in an oxygen atmosphere at 1773 K. f Effective protection of SiC composite materials. The specific advantages of this invention are: (1) Ion bombardment of the substrate significantly improves the point defects and conductivity of the composite substrate; (2) The (Hf,Si,Ta)C coating has a continuous gradient structure, forming a good metallurgical bond between the coating and the substrate, with high bonding strength; (3) The similar thermal expansion coefficients of the (Hf,Si,Ta)C coating and the substrate can improve the thermal mismatch between the coating and the substrate, reducing the tendency for coating peeling and cracking during service; (4) The (Hf,Si,Ta)C coating system has a high service temperature and self-healing ability. The coating prepared by this invention has excellent high-temperature protection performance, improving the protection of SiC. f The high-temperature service life of SiC composite materials has broad application prospects in the aerospace field.