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59results about How to "Save the tedious process" patented technology

A treatment method for heavy metal-containing wastewater

The invention discloses a treatment method for heavy metal-containing wastewater. The treatment method is carried out according to the following steps: first, adjust the pH value of the heavy metal-containing wastewater with a pH value of 1-3 to 9.5-9.5- 11; Then it is introduced into the water distribution pool with coagulant and coagulant aid added, the wastewater in the water distribution pool flows into the sedimentation tank under the action of gravity for coagulation and precipitation, and the supernatant after coagulation and precipitation is separated from the sedimentation tank The weir on the upper side of the pool overflows, and the precipitated sludge is treated separately; then the obtained supernatant is introduced into the pH adjustment tank to adjust the pH value to 6-9 with an acid solution; finally, the supernatant is sequentially passed through the sand filter and activated carbon adsorption After the pool, it is introduced into the clear water pool. The technological process of the present invention is short, and the cost of land and equipment is less; in the technological process, there are double advanced treatment measures of filtration and adsorption, and double pH adjustment is used, so that the effluent water quality meets the requirements of the "Comprehensive Wastewater Discharge Standard".
Owner:JIANGSU NANFANG COATING & ENVIRONMENT PROTECTION EQUIP

CIGS (copper indium gallium selenium) thin film solar cell and preparation method thereof

The invention discloses a CIGS (copper indium gallium selenium) thin film solar cell and a preparation method thereof, and belongs to the technical field of the solar cell. The solar cell is formed by successively connecting a substrate, a metal anode, a light absorption layer, a buffer layer, a window layer, a transparent electrode layer and a grid-shaped metal cathode, wherein the light absorption layer consists of at least two layers of CIGS thin films of different energy gaps; and each CIGS single layer of the light adsorption layer is directly formed into the film by regulating the magnetron sputtering pressure, the temperature range and the power density, or a prefabricated layer is prepared by magnetron sputtering; and then, the prefabricated layer is subjected to selenylation processing to obtain the CIGS thin film at the temperature of 400-500DEG C under the protection of argon or nitrogen. Each single layer of CIGS thin film disclosed by the invention has different energy gaps, the shape of the energy band of the light absorption layer can be regulated in a combined mode, the collection and light spectrum response curve of a carrier can be both considered, and the absorption efficiency of the light absorption layer is improved by 30-50%. The CIGS thin film solar cell and the preparation method disclosed by the invention have the advantages of high cell photoelectric conversion efficiency, simple technology, simple required equipment and easiness in realizing mass production.
Owner:CHINA AGRI UNIV +1

Preparation method of porous silicon nitride ceramic material with spherical pore structure

The invention relates to a preparation method of a porous silicon nitride ceramic material with a spherical pore structure. The method comprises the following steps: uniformly mixing silicon nitride powder with a mono-dispersed polymethyl methacrylate (PMMA) spherical pore forming agent to prepare a stable slurry, preparing microsphere powder (the silicon nitride powder and / the spherical pore forming agent are uniformly dispersed in the above microspheres) with good fluidity and regular shape through a spray drying process, carrying out a direct cold isostatic pressing technology on the microsphere powder to prepare a blank with uniform density, carrying out an optimized batching technology to completely remove the pore forming agent and other organic matters, and sintering in nitrogen pressure atmosphere to obtain the complete non-crack porous silicon nitride ceramic material. The porous silicon nitride ceramic material prepared through the method has the advantages of uniform space distribution, uniform size spherical pores, high bending strength and small discreteness.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1

Array substrate, display device and preparation method of array substrate

The invention relates to an array substrate and a display device. The array substrate comprises a substrate base plate. A display region and a non-display region are arranged on the substrate base plate. The display region is sued for displaying. The non-display region comprises a groove region. The light transmittance of the groove region is larger than that of the display region. The display device comprises the array substrate. According to the invention, by setting the groove region on the substrate base plate, the making difficulty level of the groove region is reduced; and in addition, the groove region comprises the substrate base plate and is high in light transmittance, so circuits, components or signal lines can be placed in the groove space, frame area of the display region is reduced and display region of the display device is increased. The invention also relates to the method for preparing the array substrate.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Self-aligning, double wire corner bead for fireproofing structural steel member and method of using same

A self-aligning, double wire corner bead for fireproofing structural steel along a plurality of surfaces, the corner bead having a single strip of welded wire fabric cut to a predetermined width for the fireproofing thickness and bent along a plurality of longitudinally extending lines, to provide a profile having a plurality of dihedral angles is disclosed. A nose is installed along two edges. A method of finishing the corners for fireproofing of structural steel member using an improved corner bead includes the step of attaching the corner bead through a lath to the structural steel member utilizing fasteners. The mesh of the corner bead provides a dam to form a roughened surface on the first application of fireproofing material until it hardens.
Owner:MILLER PHILIP GLEN

Method for preparing carbon fibre cloth loaded sulphur composite material

ActiveCN104600266AProminent structureOutstanding performanceMaterial nanotechnologyCell electrodesFiberCarbon fibers
The invention relates to a method for preparing a carbon fibre cloth loaded sulphur composite material, belonging to the technical field of electrode materials for ion batteries. The method disclosed by the invention comprises the following main steps of thermally treating by using cotton woven fibre cloth as the raw material so as to obtain functionalized conductive fibre cloth, and carrying out hydrothermal reaction by taking deionized water / alcohol solvent / sulphur / carbon disulfide as a reaction system so as to obtain a carbon fibre cloth loaded nano sulphur particle composite material. According to a composite positive electrode of carbon fibre cloth loaded sulphur, carbon fibre cloths are connected in a staggered manner so as to form a three-dimensional orderly conductive network; more sulphur can be adsorbed through the supramaximal specific surface area; the carbon fibre cloth loaded sulphur composite material prepared through the simple method can be directly used as a pole piece; the fussy processes of pulping, coating and the like in traditional electrode preparation can be omitted; and a beneficial way is provided for application of the sulphur positive electrode.
Owner:SHANGHAI UNIV

Method for producing low-molecular-weight high-activity polyisobutene

The invention discloses a method for producing low-molecular-weight high-activity polyisobutene. The method comprises the following steps of: adding an organic solvent and an isobutene-containing raw material into a reaction kettle respectively; introducing gaseous-phase boron trifluoride and a liquid-phase complexing agent into the reaction kettle respectively; performing polymerization reaction at the temperature of between -30 and 15 DEG C under the pressure of between 0.05 and 0.3MPa for 0.5 to 6 hours, wherein the concentration of the isobutene monomer in the reaction process is 5 to 10 weight percent; and after the reaction is finished, processing the obtained mixture material to obtain the low-molecular-weight high-activity polyisobutene. The method overcomes the technical disadvantage that a catalyst needs to be complexed in advance, and saves the complex process for preparing the catalyst, saves the energy consumption and reduces the cost by directly adding the boron trifluoride and the complexing agent into the reaction kettle. The end-group olefin content of the prepared polyisobutene is over 70 percent and even over 80 percent; and the conversion rate of the isobutene reaches over 85 percent.
Owner:潍坊滨海石油化工有限公司

Carton opening sealing device

The invention discloses a carton opening sealing device, and belongs to the field of carton opening sealing equipment. The carton opening sealing device comprises a belt and a belt wheel, wherein carton guide rails, a guide roller, a gumming roller, a cutting knife and a press roller are sequentially arranged above the belt from left to right; the carton guide rails are two right-angle triangle steel plates in hypotenuse butt joint, and openings are downward; a paper roll to be replaced is arranged above the carton guide rails; a paper strip is fixed on a carton by the paper roll via the gumming roller; the top surface of the cutting knife is an arc-shaped cutting surface; a cam matched with the arc-shaped cutting surface is arranged above the cutting knife; the cam is connected with a driving motor; a glue storage tank is arranged above the gumming roller; a glue guide groove is formed in the lower side of the side wall of the glue storage tank; the end part of the glue guide groove is provided with bristle; the bristle is in contact with the paper strip. The carton opening sealing device has the advantages that the structure is reasonable; the use effect is better.
Owner:山东叶华纸制品包装有限公司

Preparation method of porous silicon nitride ceramic

The invention discloses a preparation method of porous silicon nitride ceramic, comprising the steps of mixing silicon powder, silicon nitride powder and sintering aid powder to obtain mixed powder, shaping the mixed powder to obtain a blank, and inducing the blank to experience nitridizing sintering reaction under nitrogen atmosphere to obtain the porous silicon nitride ceramic. The preparation of the porous silicon nitride ceramic with coarse powdery materials is provided herein for the first time; the core is to cause complete dissolution-separation phase change to coarse alpha-Si3N4 underhigh temperature and liquid phase conditions generated by combustive synthesis, so that beta-Si3N4 ceramic is generated. The preparation method herein which employs a self-propagating combustive synthesis technique is low in energy consumption; the process is simple; the ceramic herein has a self-purifying function, and the production cycle is short.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Systems and methods for transitions of care

A system and method to manage the transitioning the care of an individual in a healthcare setting from one point of care with a particular set of characteristics to another physical location with a different set of characteristics by providing for the retrieval of information relating to an individual by a plurality of authorized users and devices at multiple facilities. The system includes a skin wearable, waterproof, non-transferable frangible individual identification device comprising an adhesive and an ink arranged to provide a physiologically and optically perceptible, humanly understandable, and machine readable information relating to said individual wherein once applied to skin said identification device is not removable in one piece without rendering the device inoperable; a plurality of reader devices; a computer interface device receiving information from said individual identification device and from said reader devices respecting the individual identified by said individual identification device; a computer system coupled to said computer interface device, said computer system including a memory with an algorithm for processing information collected by said computer system; and a separate set of reader devices and a separate service rendering system, each output information from their respective reader devices to a common database, the contents of said common database being coupled to a computing device which communicates information to said plurality of facilities.
Owner:IDION LLC

Method of culturing nk cells and kits containing medium addtions therefore

The present invention relates to a method for culturing natural killer cells (NK cells) applied to immune therapy and, more particularly, to a medium addition kin for culturing NK cells with which lymphocytes derived from human peripheral blood can be cultured to effectively amplify and activate NK cells, which have an outstanding therapeutic effect on malignant tumors, while remarkably increasing the share of NK cells, and an NK cell culturing method using the kit.
Owner:SHIN DONG HYUK +1

Shell of water flowmeter and its manufacture method

InactiveCN101038196ALimited investmentReduce pollutionVolume meteringEngineeringWeld line
The present invention discloses a water meter case including a case body (1) and the flange positioned on the case body (1). The water meter case is characterized in that said case body (1) is a barrel-shaped body that is weld with steel board and weld lines (4) are formed on the surface of the case body. Said flange includes a meter head flange (3) that is fixed in the center of the surface of the weld case and a port flange (2) that is weld on the port of said case body (1); the present invention also discloses a manufacturing method of the water meter case. Comparing to the prior art, the production of the water meter case in the present invention has the merits of simple machining and low cost, and is especially suitable for the outsize water meter that has a diameter bigger than 400mm.
Owner:黄志瑜

Structure and method for preventing reinforcing steel from being corroded in highly-corrosive environment

The invention relates to the field of civil engineering, in particular to a structure and a method for preventing reinforcing steel from being corroded in a highly-corrosive environment. The method for preventing the reinforcing steel from being corroded in the highly-corrosive environment comprises the following steps: wrapping exposed reinforcing steel with a plastic thin film, and performing winding and sealing to form a first protective layer by adopting an adhesive tape; sleeving the wrapped exposed reinforcing steel with a sleeve of which the diameter is matched with that of the exposed reinforcing steel to form a second protective layer; sealing the top of the sleeve by virtue of a sealing cover; sealing a gap between the sleeve and a concrete structure by virtue of mortar. According to the structure and the method, the two protective layers are provided for the exposed reinforcing steel, an operation process is convenient, sealing effects are reliable, and anticorrosive effects are prominent; compared with a conventional process for smearing the reinforcing steel with cement slurry to isolate the corrosive environment, the method has the advantages that a cumbersome process of removing the cement slurry in a later period is eliminated, damage to an exposed screw head rolled with a straight thread on the reinforcing steel is avoided, the reinforcing steel is prevented from being polluted by pollutants in an offshore highly-corrosive environment, and influence on the bonding strength of concrete in the later period is eliminated.
Owner:NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY +1

Combined extraction preparation method of complex polypeptide

The invention provides a combined extraction preparation method of complex polypeptide. According to the combined extraction preparation method, a moderate weak acid method is adopted for extracting natural bioactive polypeptide, then sediments remained and discarded in the polypeptide extraction process with the weak acid method are hydrolyzed by adopting an enzymolysis method, namely the same raw material is subjected to combined polypeptide extraction by respectively adopting the acid hydrolysis method and the enzymolysis method and utilizing the extraction method, extracted raw material or resource is completely utilized, original waste is used to the greates extent, and yield of extracted and prepared combined polypeptide is obviously improved. In addition, valuable natural resources are saved, environmental pollution is reduced, potential safety hazard is eliminated, production period is shortened, extraction reagents and instruments are reduced, investment and production cost are reduced, polypeptide bioavailability is improved, future use application scope is extended, and human body application value is improved.
Owner:大连摩格生物科技有限公司

Floor block connecting structure and floor block adopting the same

The invention provides a floor block connecting structure, which comprises a blind hole arranged at the side edge of the floor block, and a wood plug strip which can be plugged into and clamped to be fixed in the blind hole. The invention also provides a floor block, which comprises a floor body, wherein the side surface of the floor body is provided with more than one blind hole distributed along the length direction of the side surface, the floor bodies are spliced together via the wood plug strip which can be plugged into and clamped to be fixed in the blind hole. The invention uses the wood plug strip and the blind hole to splice the floor blocks, the blind hole can be processed by a punching machine very conveniently, the wood plug strip can be independently manufactured in batches, the prior complicated process of milling tongue-shaped objects matched with a clamping groove is omitted, and the production efficiency is greatly increased.
Owner:BEI JING NEW BUILDING MATERIALGRP

Method for producing vegetable fat microcapsules

The invention discloses a method for producing vegetable fat microcapsules. The method comprises the following steps: removing seed coats from oilseeds, pulverizing, sieving or performing wet milling; performing enzyme deactivation on the pulverized raw material, adding drinking water, and adjusting the material-liquid ratio at 1:(10-15); adding 1.0-1.5% of flavor enzyme, 0.5-1% of cellulase and 0.5-1% of pectinase by mass of the raw material, performing enzymolysis for 3-5 hours, filtering to remove impurities, diluting the stock solution by 4-5 times, adding excessive cyclodextrin in an amount which is 4.5-5 times of the mass of the raw material, stirring at a constant temperature of 30-45 DEG C for 1.5-3 hours, refrigerating in a refrigerator at a temperature of 4 DEG C for 24 hours, taking out, performing vacuum filtration, and drying at a low temperature to obtain the vegetable fat microcapsules in the shape of white powder. The method is simple, can be used for reducing the labor intensity and facilitating mechanized and automatic production, and the product is stable in properties and easy to store and transport.
Owner:GUIZHOU UNIV

Vanadium phosphate nano material with porous network structure and preparation method thereof

The invention discloses a vanadium phosphate nano material with a porous network structure and a preparation method thereof, and the vanadium phosphate nano material is used for a lithium ion batterycathode material. The preparation method comprises the following steps: firstly, growing self-supporting graphene foam by a chemical vapor deposition method, and loading a vanadium phosphate (VPO4) nano material on a graphene foam substrate by a hydrothermal method to improve the conductivity and ionic conductivity of the graphene foam substrate. The vanadium phosphate nano material with the porous network structure can be used as negative electrode materials of lithium ion batteries and has good lithium ion energy storage behavior, and the charging capacity can reach 424.4 mAh g<-1> at a current density of 0.2A g<-1>; after 3,000 cycles of charging and discharging, the capacity maintenance rate still reaches above 50.3%. The preparation method of the vanadium phosphate nano material is simple, avoids the tedious process of preparing electrode sheets by the traditional process, greatly reduces the cost problem of battery assembly, and can realize green mass production.
Owner:CHINA-SINGAPORE INT JOINT RES INST

Ultrasonic assisted deep-eutectic solvent extraction method for polyphenols in globe artichoke

The present invention discloses an ultrasonic assisted deep-eutectic solvent extraction method for polyphenols in globe artichoke. A combination of processing technologies of ultrasonic technology, deep-eutectic solvent, macroporous adsorption resin separation and purification technology, freeze-drying, etc. realizes extraction and purification of high-purity globe artichoke polyphenols, achievespurposes of being high-efficiency in extraction, free of solvent pollution, low in toxicity, environment-friendly and high in product purity, is simple in operation processes, short in extraction time, green and pollution-free and low in cost, and improves extraction rate and purity.
Owner:HUAQIAO UNIVERSITY

Hydraulic expansion forming process

InactiveCN1943902AEliminate stretching and annealingIncrease productivityShaping toolsHigh pressureForming processes
The hydraulic bulging process with metal pipe as prefabricated part includes setting the metal pipe inside mold, sealing ends of the metal pipe, and filling high pressure liquid into the pipe to form inside the mold. Using metal pipe as prefabricated part needs only welding metal plate into pipe and no complicated drawing and annealing process, so that the present invention has high production efficiency, saving in material, simple apparatus and low cost.
Owner:江门市力锋五金实业有限公司

Method for reporting log on client and electronic equipment

The invention discloses a method for reporting a log on a client and electronic equipment. The method comprises the following steps of writing an operation behavior of a user for the client into a local file, and encrypting the local file to generate an encrypted file; uploading the encrypted file to a background server, and storing the encrypted file in the background server; downloading the encrypted file from the background server, and decrypting the encrypted file; and acquiring the decrypted decryption file, and analyzing the operation behavior of the user for the client according to thedecryption file. Through the method and the electronic equipment provided by the invention, the user does not need to retell the previous operation for the client to make a result reappear, a complicated flow process is omitted, the time is saved, the efficiency is improved, the robustness of the client and a program is improved and the abnormality occurring in the client is assistantly solved.
Owner:SHENZHEN HIVE BOX NETWORK TECH LTD

System and method for generating debugging code

Disclosed are a system and a method for generating debugging codes. The method comprises setting the objects needing addition of the debugging codes in ASL file, and setting the debugging code format for each object, wherein the object include a Device object and a Method object; traversing all the files in the BIOS root directory folder of the debugged host in order; when the traversed file is an ASL file, traversing the valid Device objects in the ASL file in order, and obtaining the Device object file name and path; traversing all valid Method members for each Device object, and obtaining the file name of each Method member; according to the debugging code format set of the Device object, adding the corresponding debugging code for the traversed Method members; traversing the conditional expression of each Method member and adding the corresponding debugging code for the traversed conditional expression according to the debugging code format set of the Method object. With the system and the method of the invention, debugging code can be automatically added more rapidly.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

High-speed data transmission pre-emphasis circuit for LVDS and control method thereof

The invention discloses a high-speed data transmission pre-emphasis circuit for LVDS and a control method thereof. Two pre-emphasis current source circuits, two high-gain broadband operational amplifiers and four pre-emphasis state change-over switches are adopted to form a basic circuit architecture; four pre-emphasis state change-over switches and a high-gain broadband operational amplifier areadded on the basis of a classic bridge type switch current source topological structure to achieve amplitude enhancement of high-frequency components in the high-speed data signal transmission processso as to compensate attenuation of signal amplitude information in the high-speed signal transmission process. According to the invention, negative feedback adjustment speed and precision of common-mode voltage can be obviously improved during high-speed data transmission; the problem of common-mode signal deterioration during high-speed data transmission can be solved through the double-high-gain and broadband operational amplifier design, the problem of poor waveform consistency of differential signals can be effectively improved, and the purposes of improving the overall signal integrity of the LVDS transmitter circuit and reducing the bit error rate are achieved.
Owner:XIAN MICROELECTRONICS TECH INST

Self-aligning corner bead for fireproofing structural steel member and method of using same

A self-aligning corner bead for fireproofing structural steel, having a strip of welded wire fabric cut to the appropriate width for the fireproofing thickness and bent longitudinally to form an obtuse V-shaped device is disclosed. A plastic nosing is installed along one edge. A method of finishing the corners for fireproofing of structural steel member using an improved corner bead includes the step of attaching the first wing of an obtuse V-shaped device through a lathe to the structural steel member utilizing pneumatic or screw type fasteners. The mesh structure of the second wing of the V-shaped device provides a dam to form a roughened surface on the first application of fireproofing material until it hardens.
Owner:MILLER PHILIP GLEN

Laminated floor slab for steel buildings

The invention relates to a laminated floor slab for steel buildings, which belongs to the field of building profiles and comprises a prefabricated concrete bottom plate, middle keels and a cast-in-place concrete top layer. The prefabricated concrete bottom plate is composed of a hot galvanized wire mesh, transverse clamping channel steel strips, side plates and a cast concrete layer. Crack resistance and seismic resistance of the floor slab are improved greatly. The middle keels are longitudinally disposed at intervals and fixedly connected with the transverse clamping channel steel strips of the prefabricated concrete bottom plate, so that stability and no shifting of the middle keels are ensured. The middle keels are totally enclosed in the cast-in-place concrete layer by the cast-in-place top layer, so that casting quality of cast-in-place concrete is guaranteed, and the strength of the cast-in-place concrete top layer is fully enhanced. The laminated floor slab is high in rigidity, high in bearing capacity, crack-resistant, excellent in seismic resistance, excellent in overall thermal insulation and sound insulation properties, simple in manufacture and available for industrial on-line production. Therefore, the requirements of high-rise steel buildings and large-span floor systems on floor slabs can be widely met.
Owner:HUBEI HONGYI BUILDING DECORATION ENG

Self-reinforcement clamp type lifting appliance

The invention discloses a self-reinforcement clamp type lifting appliance. The self-reinforcement clamp type lifting appliance comprises two clamp arms, the two clamp arms are longitudinally arranged,and are hinged through a middle shaft, each clamp arm is divided into a handle end and a pressing end through the middle shaft, a wall plate is clamped to the pressing ends, a process hole is formedin the face of the wall plate, pressing discs are arranged at the two ends of the process hole, the pressing discs are hinged to the clamp arms, limiting holes are formed in the ends, making contact with the wall plate, of the pressing discs, and are horizontally arranged, a lifting shaft is inserted between the limiting holes, and the lifting shaft penetrates the process hole. The handle ends areprovided with two lifting cables, the two lifting cables are connected with the clamp arms, and the two lifting cables are jointly connected with a lifting ring. The technical problem about lifting and splicing of heat preservation light wall plates in assembly type buildings can be effectively solved, the structure is simple, and operation is easy.
Owner:HEFEI GUORUI INTEGRATED CONSTR TECH CO LTD

ph reference reagent calcium hydrate preparation method

The invention relates to a pH reference reagent calcium hydrate fast preparation method. The method comprises 1, dissolving industrial calcium nitrate in deionized water, carrying out heating for dissolution, adding a small amount of a calcium hydrate solution into the solution, carrying out a reaction process at a temperature of 70-80 DEG C for 0.5h, dissolving the reaction product for 1-2h and filtering the solution, 2, heating the solution to a temperature of 70-80 DEG C, adding sodium hydroxide into the solution according to a matrix ratio of 3: 1, accurately adjusting pH to 12.5-10.5 and carrying out a reaction process for 1-2h, 3, filtering the hot solution at a temperature of 70-80 DEG C and washing the precipitates through hot water 2-4 times, and 4, spin-drying the precipitates and drying the precipitates at a temperature of 80-100 DEG C for 8-10h to obtain the pH reference reagent calcium hydrate. The preparation method realizes Fe, Mg and SO4<2-> removal in one step, greatly shortens a process, saves time by 4-6h and improves production efficiency.
Owner:TIANJIN GUANGFU TECH DEV

A kind of preparation method of n-type passivated contact solar cell

A method for preparing an N-type passivated contact solar cell of the present invention, which sequentially comprises polishing an N-type crystalline silicon substrate on both sides, growing a tunnel oxide layer, an intrinsic amorphous silicon layer, and an intrinsic amorphous silicon layer on the back in sequence Doping treatment, deposition of silicon nitride film on the back, texturing on the front surface, boron diffusion, removal of the borosilicate glass layer on the front and wrapping to the back, preparation of passivation anti-reflection film on the front, printing of silver paste on the back and printing of silver and aluminum on the front Paste and sintering steps to complete the preparation of N-type passivated contact solar cells. The invention solves the leakage problem caused by the phosphorus diffusion process in the conventional process, saves a step of activating the dopant source on the back side by high temperature annealing, reduces the damage to the silicon substrate, reduces the process steps, and reduces the production cost , and use plate type PECVD equipment to prepare silicon nitride passivation film to avoid poor appearance caused by texturizing the position of card groove printing when texturing the front side.
Owner:江苏杰太光电技术有限公司
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