2296results about How to "Improve yield rate" patented technology

The invention discloses a PCB (Printed Circuit Board) defect identification method used in an automatic PCB sorting process, and relates to the technical field of defect identification, a visibility coefficient Kjxs is calculated based on the definition of a pattern formed by photoresist, an etching influence coefficient Syxs is calculated in combination with degree data after etching, and the etching influence coefficient Syxs is input into a defect evaluation model, so that the defect of the PCB is evaluated. Accurate evaluation of the defects is realized through a deep learning technology, and the method enables identification of the PCB defects to be more intelligent and efficient, and reduces manual intervention. On the basis of comparative analysis of the defect score Qpf and the preset evaluation threshold value Q, the system can automatically judge the defect condition of the PCB to be etched and adopt a corresponding automatic sorting mechanism, the intelligent automatic sorting mechanism can ensure that the qualified PCB enters the subsequent technological process, and the defective PCB is removed in time, so that the production efficiency is improved, and the production cost is reduced. And the risk that unqualified products flow into subsequent production links is reduced.

The invention belongs to the technical field of drag chain assembling, and particularly relates to automatic drag chain assembling equipment and method.The automatic drag chain assembling equipment comprises a base, a feeding device is arranged on one side of the base, a workbench is fixedly arranged at the top of the base, an assembling groove is fixedly connected to the top of the workbench, and a feeding groove is directly and fixedly formed between the assembling groove and the feeding device; a conveying device is fixedly arranged at the top of the assembling groove; the chain links on the assembling blocks are centered and clamped, and meanwhile, the chain links on the limiters in the assembling grooves are centered and clamped, so that the previous chain links and the next chain links are located on the same horizontal straight line, and the chain links are prevented from deviating when being pushed by the crimping columns; the problems that the chain links cannot be completely embedded into one end of the drag chain and the stability of the drag chain formed after clamping is reduced due to the fact that the chain links cannot be accurately aligned and fixed to the preset clamping positions are solved, the butt joint precision of the chain links is improved, the stability of the drag chain formed after butt joint is guaranteed, and the yield of the produced drag chain is also improved.

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. According to the battery cell cover plate, a riveting hole in a riveting piece is provided with a first step part and a second step part, and the size d1 of the first step part in the first direction is smaller than the size d2 of the second step part in the first direction; a riveting part on the pole is riveted with the second step part so as to form a material expansion part which protrudes in the direction perpendicular to the second direction on the side wall of the pole, and the size of the riveting part in the first direction is d3; the ratio of the projected area of the material expanding part on the riveting piece to the cross sectional area of the riveting part is S1 / S2 = 0.2-0.4, S1 = pi (d22-d12) / 4, and S2 = pi d32 / 4. According to the invention, the reliable riveting of the pole and the riveting piece can be ensured, so that the riveting piece can bear the drawing force meeting the structural strength requirement of the battery cell cover plate, and the condition of abnormal flatness of the riveting piece is avoided, thereby improving the yield of the battery cell cover plate and the battery cell and ensuring the use safety of the battery cell.

The invention discloses panel chip-level bottom filling equipment and a wafer operation method thereof.The panel chip-level bottom filling equipment comprises a feeding and discharging machine body, a preparation station, a dispensing station and a detection station, and a material taking piece used for feeding and discharging wafers is arranged in the feeding and discharging machine body; wafers can be conveyed into the working stations for working through the material taking part, the preparation station is located on one side of the feeding and discharging machine body so that the to-be-machined wafers input by the material taking part can be received, the to-be-machined wafers can be preheated and subjected to code scanning alignment in advance, and the glue dispensing station is located on the side edge of the feeding and discharging machine body and used for dispensing glue on the to-be-machined wafers. The detection station is located on the other side of the feeding and discharging machine body and arranged opposite to the preparation station, and the detection station is suitable for receiving the wafer obtained after dispensing operation on the dispensing station is completed so as to detect the dispensing condition of the wafer. According to the invention, the large-size wafer can be safely leveled, and the large-size wafer processed on each station is ensured to be in a set direction, so that the production efficiency and the yield of products are improved.

The invention provides a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, a first electrode layer, a pixel defining layer and an isolation structure. The first electrode layer is arranged on one side of the substrate, the pixel limiting layer is arranged on the side, away from the substrate, of the first electrode layer, and the isolation structure is arranged on the side, away from the substrate, of the pixel limiting layer. Wherein the pixel limiting layer comprises a pixel limiting part and a pixel opening, the pixel limiting part comprises a first side wall making contact with the first electrode layer, and the included angle between the first side wall and the plane where the substrate is located is a right angle.

The invention relates to the technical field of heterojunction solar cells, and particularly discloses a selective electrode contact heterojunction cell preparation method and a heterojunction cell, and the method comprises the steps: carrying out the first texturing of a silicon wafer substrate, carrying out the mask layer preparation of the textured silicon wafer, and carrying out the first patterning processing of the silicon wafer. Performing slotting treatment on two sides of the silicon wafer based on picosecond laser, performing secondary texturing on the silicon wafer, placing the cleaned silicon wafer in a second texturing mixed solution so as to generate a large textured pyramid structure on the inner bottom surface of a groove in the two sides of the silicon wafer, and removing the first mask layer from the silicon wafer after secondary texturing to obtain a second textured pyramid structure; sequentially depositing a plurality of layers including an intrinsic amorphous silicon layer and the like on the two surfaces of the silicon wafer, printing a second mask layer in a counterpoint manner in other areas of the silicon wafer which is provided with the groove in the first time of patterning based on exposure and development, electroplating a copper grid line on the silicon wafer, and sequentially removing the second mask layer and a copper seed layer on the silicon wafer after electroplating the grid line; the selective electrode contact copper grid line heterojunction solar cell is obtained, the problem of grid separation of the copper grid lines is solved, and the cell efficiency is improved.

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a pole assembled on a cover plate main body; the riveting piece is provided with a connecting hole, and the pole is riveted in the connecting hole and then is welded with the riveting piece; the connecting hole is of a stepped hole structure provided with a first stepped part, a second stepped part and a third stepped part which are sequentially arranged in the axial direction, and the hole diameters of the first stepped part, the second stepped part and the third stepped part are sequentially decreased. In the thickness direction of the cover plate main body, the height dimension h of the first step part is 0.2-0.5 mm; and the distance a between the inner wall of the first step part and the inner wall of the second step part is 0.5-1mm. Welding marks formed by a welding process can be prevented from protruding out of the upper surface of the riveting piece, so that the flatness of the riveting piece is guaranteed; the avoiding groove meeting the requirement of the welding process is formed in the riveting piece, and the influence of the welding process on the shape and size precision of the riveting piece is improved, so that the appearance yield of the battery cell cover plate is improved, and the safety and yield of the battery cell are improved.

The invention discloses an automatic wafer packaging detection and sorting system, which relates to the field of semiconductor manufacturing and detection, and comprises the following steps: automatically acquiring packaged wafers from packaging equipment and a storehouse by integrating automatic logistics and intelligent scheduling; high-precision camera multispectral detection is combined with AI analysis, and surface defects of the packaged wafer are detected; terahertz imaging and X-ray are combined with an AI technology, the internal structure of a packaged wafer welding spot is detected, and holes, cracks and welding quality defects are recognized; electrical detection is carried out on the packaged wafer through a flexible probe, and intelligent fault positioning is carried out in combination with AI; an extreme temperature change is simulated to carry out a thermal cycle test, and thermal stress is monitored in real time; and an AI optimization temperature curve and atmosphere control are adopted to simulate a multiple reflow soldering process. By integrating an advanced detection technology and an intelligent means, the wafer packaging detection precision and sorting efficiency are improved, meanwhile, the production cost is reduced, and powerful data support is provided for continuous improvement.

The invention relates to the technical field of cloud and machine vision, in particular to a high-precision multi-light-field contact lens flaw detection method and device based on cloud-machine vision, and the method comprises the steps: preprocessing a multi-light-field original image to obtain a point light source image, a bright field image, a dark field image and a preprocessed image; performing glass bowl detection on the preprocessed image, and extracting geometric features of the glass bowl; contour feature extraction is carried out on the printed contact lenses in the glass bowl area; carrying out obvious flaw detection; edge bubble flaw detection, edge flaw detection under a Cartesian coordinate system, edge flaw detection under a polar coordinate system and surface flaw detection based on multiple light fields are carried out. According to the method, various defects of the contour and the surface of the printed contact lens are detected, and the problem that an existing detection method is not high in detection precision and not high in universality is correspondingly solved. The method can be widely applied to an automatic contact lens detection system, the manual reinspection cost is reduced, the production efficiency is improved, and the product yield is improved.

The invention discloses a semiconductor chip defect detection method and system and a storable medium, and the method comprises the steps: obtaining a to-be-detected image, inputting the to-be-detected image into a trained and tested detection model for detection, and obtaining a detection result. Wherein the detection model is formed by training a semantic segmentation model based on a U-Net model, the semantic segmentation model comprises an encoder and a decoder, and the encoder repeatedly uses a partial convolution residual module of coordinate attention and maximum pooling downsampling to extract image features; the decoder reuses up-sampling of a bilinear interpolation method and a partial convolution residual module of coordinate attention to restore image features, and a multi-scale deep convolution module is arranged at the jump connection position of the encoder and the decoder. The detection model is a light-weight improved U-Net model, can consider different products, can rapidly and accurately detect the defects of the semiconductor chip, and improves the quality and yield of the chip.

The invention discloses a controllable mass center stamping fuel oil system for a small-sized large-maneuvering aircraft, which comprises a pressurizable vacuum fuel oil tank (1), a pressurizing air entraining pipeline (2), an oil supply pipeline (3) and a fixing unit, the pressurizable vacuum fuel oil tank (1) comprises an oil bag (11) and a plurality of air bags (12), each air bag (12) is connected with the oil bag (11) but not communicated with the oil bag (11), and the oil bag (11) is communicated with the pressurizing air entraining pipeline (2). The pressurizing air entraining pipeline (2) is communicated with each air bag (12), the oil bag (11) is connected with the engine (4) through the oil supply pipeline (3), and the fixing unit is used for fixing the pressurizing vacuum fuel tank (1) and enabling the gravity center of the pressurizing vacuum fuel tank (1) not to deviate. The pressurizable vacuum fuel tank is made of flexible materials, can be made into different shapes according to the structure of a cabin and is composed of the air bag and the oil bag, and in the using process, the air bag pressurizes and directionally extrudes the oil bag to form oil supply pressure.

The invention discloses a photovoltaic cell preparation method for improving ALD passivation and a photovoltaic cell, and belongs to the technical field of photovoltaic cells. The preparation method comprises the following steps: performing texturing, front boron diffusion, oxidation, back etching and polishing on a silicon wafer, preparing a back tunneling oxide layer and an amorphous silicon layer, performing acid pickling, removing the tunneling oxide layers on the back and the side surfaces through cleaning, preparing front and back passivation films, printing electrodes and the like, washing with water: washing with a cleaning solution containing potassium hydroxide and hydrogen peroxide, washing with water, pickling, and washing with water; repeating the steps; and cleaning with the oxidizing liquid again, and washing with water. According to the invention, through the improvement of the processing technology of the tunneling oxide layer and the amorphous silicon back winding plating, the yield of the battery production line is improved, the control of the production line is simpler and more convenient, the promotion of the passivation of the oxide layer before ALD is more stable, and the battery conversion efficiency of the production line is further improved.

The embodiment of the invention provides a pole piece, a battery monomer, a battery, electric equipment and a preparation method of the pole piece, the problem of powder falling of the pole piece to be cut in the cutting process can be effectively improved, so that the risk of internal short circuit of the battery monomer caused by lap joint of a positive pole piece and a negative pole piece is reduced, and the yield of the battery monomer is further improved. The pole piece comprises a first current collector, the first current collector comprises a first body and a tab area connected to the edge of the first body, and the first body comprises a coating area and an edge area; the first conductive layer is arranged on the surface of the coating area; wherein the thickness of the pole piece in the edge area is smaller than that of the pole piece in the coating area.

The invention relates to the technical field of batteries, and discloses a riveting top cover, a battery cell cover plate and a battery cell. Wherein the riveting top cover comprises a riveting block and a pole column, the riveting block is provided with a through hole, the through hole comprises a matching hole, a secondary riveting hole and a main riveting hole which are coaxially arranged in sequence, the pole column comprises a base and a protruding part arranged on the base, the protruding part is provided with a matching section, a secondary riveting section and a main riveting section which are in one-to-one correspondence with the matching hole, the secondary riveting hole and the main riveting hole, and the matching section, the secondary riveting section and the main riveting section are in one-to-one correspondence with the matching hole, the secondary riveting hole and the main riveting hole. The first annular cavity is reserved between the secondary riveting section and the secondary riveting hole in the pre-assembly state, the second annular cavity is reserved between the main riveting section and the main riveting hole, and the first annular cavity and the second annular cavity respectively reserve material expansion spaces for the secondary riveting section and the main riveting section. Therefore, part of the first annular cavity can be filled with the secondary riveting section after the secondary riveting section expands under the action force, the phenomenon that the riveting block is locally expanded or deformed due to expansion of the secondary riveting section in the traditional riveting process is avoided, and the yield of the riveted top cover is improved.

The invention discloses a built-in self-test repairing method for a PE matrix of an AI accelerator chip, and relates to the technical field of circuit structure design of the AI accelerator chip. According to the built-in self-test method, a scan test generator is adopted to generate scan test excitation, an output response is transmitted through a configurable PE operation unit, an output response comparator is adopted to judge whether the output response is correct or not, and a fault PE diagnostor is adopted to judge a row and column address where a fault PE unit is located; according to the built-in self-repairing method, an RPE redundant operation unit is used for replacing and repairing a fault PE unit, and a corresponding data bus is distributed to the RPE redundant operation unit through an activation data bus and a weight data bus distributor according to row and column addresses. According to the invention, the self-test of the PE arithmetic unit and the self-repair of the failed PE arithmetic unit are realized with a relatively small extra circuit area proportion, so that the yield of the AI accelerator chip is improved, and the manufacturing cost of the chip is reduced.

The invention relates to the technical field of chip packaging, and discloses a method and system for packaging a storage chip based on lead bonding, and the method comprises the steps: carrying out the front-end processing of the storage chip, and obtaining a target storage chip; evaluating expected application performance corresponding to the target memory chip, calculating a bonding adaptation coefficient between the target memory chip and the lead bonding material, and screening out a corresponding optimal bonding material from the lead bonding material; collecting a chip initial image corresponding to the target storage chip, identifying a lead bonding original point, a lead bonding end point and a middle welding point in the chip welding points, and calculating the welding point circularity corresponding to the middle welding point; determining optimal welding spots from the middle welding spots, planning a lead bonding path corresponding to the target storage chip, and analyzing a physical representation attribute corresponding to each welding spot in the optimal welding spots; and performing bonding packaging processing on the target storage chip to obtain a packaged storage chip. The invention mainly aims to solve the problem that the packaging quality of the storage chip is reduced.

The invention relates to the technical field of wafer detection, in particular to octahedral AOI detection equipment which comprises a machine table, a wafer feeding mechanism is installed at one end of the surface of the machine table, and a rotating disc mechanism is installed on the surface of the machine table. A product correction CCD guiding assembly, an automatic correction assembly, a Die surface and gold thread AOI detection assembly, a steering correction module, a bottom long edge AOI detection assembly and a bottom short edge AOI detection assembly are sequentially installed on the surface of the machine table and located on the outer side of the rotating disc mechanism in the anticlockwise direction. According to the wafer detection device, the automation degree is improved, manual auxiliary operation is not needed in the detection process, and wafer taking work is facilitated, so that the labor intensity during wafer detection is reduced, and the working efficiency is improved; and the whole detection process is automatically completed by a machine, and manual operation does not exist in the process, so that missed detection work is avoided, detected defective products are directly discharged, the phenomenon that the defective products flow into the next process in a mixed line manner is avoided, and the yield during wafer detection is increased.

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a cover plate main body provided with a mounting hole; the pole is arranged in the mounting hole; the riveting piece is riveted with the pole post and then is welded with the pole post; the welding joint of the pole and the riveting piece is filled with the welding filling piece, and the melting point of the welding filling piece is lower than that of the pole and that of the riveting piece. The welding filling piece is filled at the welding joint of the pole and the riveting piece, so that the pole and the riveting piece can be wrapped after the welding filling piece is heated and melted, and the welding strength of the pole and the riveting piece is ensured; the melting point of the welding filling piece is lower than that of the pole and the riveting piece, so that the welding filling piece cannot generate high temperature after being melted, the influence of thermal deformation of the riveting piece is small, the flatness of the riveting piece is effectively improved, the appearance of the welding area of the pole and the riveting piece is improved, the appearance yield of the cell cover plate is improved, and the production cost is reduced. Therefore, the safety and the yield of the battery cell are improved.

The invention relates to a cassette cleaning process and a cleaning device thereof. The invention discloses a cassette cleaning process which is used for sequentially performing spraying, ultrasonic cleaning and bubbling rinsing procedures on a cassette. Wherein in the bubbling rinsing step, gas with a certain flow rate is filled into liquid to form tiny bubbles, so that tiny particles falling off in the ultrasonic cleaning step are taken away. The cassette cleaning process has the advantages that tiny particles which fall off during ultrasonic cleaning and then are attached to the surface layer are timely and effectively peeled off again and discharged, secondary attachment is avoided, and the cleaning efficiency and effect are improved; and large-size particles and residual chemical substances in the cassette are cleaned through spraying, so that various types of pollutants are cleaned.

The invention discloses planet wheel automatic mounting equipment which comprises a mounting station used for mounting a planet carrier, and the planet carrier is rotatably arranged on the mounting station; the feeding module is used for feeding the planetary gear into the window of the planetary carrier and comprises a feeding track and a feeding frame moving along the feeding track; and the material feeding module comprises a gear feeding module and a gasket feeding module which are respectively used for feeding the planetary gears and the gaskets to the feeding frame. According to the automatic mounting equipment provided by the invention, the mounting station is matched with the feeding module and the plurality of loading modules, so that all parts of a planetary gear transmission structure are sequentially configured and assembled without manual work, and the positioning precision among all the parts and the stability during combined mounting are greatly improved by replacing workers with machines; therefore, the yield and efficiency of assembling work of the planetary gear transmission structure are improved, the labor cost is effectively controlled, and control over production is better facilitated.

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a cover plate main body provided with a mounting hole; the pole is arranged in the mounting hole; a connecting hole is formed in the riveting piece, and one end, extending out of the mounting hole, of the pole is riveted with the connecting hole, so that part of the pole forms a material expansion part; the preset length size of the riveting piece in the first direction is M, and the unit is mm; the preset width size in the second direction is N, and the unit is mm; the radial size of the part, used for containing the material expanding part, of the connecting hole is d, and the unit is mm; (M-d) / (N-d) < = 8. According to the invention, the condition that the circumferential edge of the riveting piece is warped can be effectively avoided, so that the problem that the flatness is out of tolerance after the riveting piece and the pole are assembled is solved, the size and shape tolerance of the assembled pole meet the requirements, the reliable riveting of the pole and the riveting piece is ensured, the yield of the battery cell cover plate and the battery cell is improved, and the production cost is reduced. The use safety of the battery cell is ensured.

The invention relates to the technical field of dispensing detection, in particular to a real-time online detection method and system for glue hanging of a dispensing needle. The method comprises the following steps: acquiring a step image and an end face image of a dispensing needle collected by a visual device; processing the step image based on an image processing algorithm to obtain center coordinates of the needle step; mapping the circle center coordinate of the needle head step to the needle head end face image, wherein the circle center coordinate of the needle head step is used as a glue hanging detection positioning coordinate # imgabs0 #; the outer circle radius # imgabs 1 # of the needle end face is calculated, and a needle end face area is segmented on the needle end face image in combination with the glue hanging detection positioning coordinate # imgabs 2 #; acquiring the width W of a rubberizing detection area, and acquiring the rubberizing detection area by combining the circle center coordinate of the needle step and the excircle radius of the needle end face; the area of the glue area in the glue hanging detection area is calculated and compared with the preset value, and real-time online detection is carried out on glue hanging of the dispensing needle head according to the comparison result, so that the detection steps are simplified, the detection efficiency and precision are improved, and the yield of dispensed products is high.

The invention provides a display panel and a display device. The display panel comprises a substrate, a packaging layer and a touch control layer, wherein the packaging layer and the touch control layer are sequentially arranged on the substrate in a stacked mode; the substrate comprises a hole opening area and an isolation area surrounding the hole opening area; the touch layer is provided with at least one slot, the slot is located in the isolation area, the slot extends from the surface, away from the substrate, of the touch layer to the direction of the substrate, and the slot penetrates to the surface, away from the substrate, of the packaging layer to the maximum extent. According to the display panel, the structure of the touch layer of the isolation area is not continuous, stress is dispersed, stress concentration is avoided, then the problem that in the manufacturing process of the display panel, due to stress concentration, a film layer is peeled off or cracks appear is solved to a certain extent, the display effect of the display panel is guaranteed, and the display effect of the display panel is improved. And the yield and the product competitiveness of the display panel are improved.

The invention relates to the technical field of wire harness processing, in particular to a shielding network wire harness turning and cutting device, which comprises a wire cutting mechanism comprising a clamping cutter holder assembly, a first rotary wire turning assembly arranged opposite to the clamping cutter holder assembly, and a cutter shaft assembly arranged at the center of the first rotary wire turning assembly and coaxial with the clamping cutter holder assembly; the wire turning mechanism and the wire cutting mechanism are arranged in parallel, and a second rotary wire turning assembly is arranged in the wire turning mechanism; the wire harness carrier is arranged at the front ends of the wire cutting mechanism and the wire turning mechanism and is used for clamping and transferring the wire harness; wherein the first rotary wire turning assembly is used for scattering a shielding net on a wire harness and turning the shielding net to the clamping cutter holder assembly, the cutter shaft and the clamping cutter holder assembly extrude to cut off redundant shielding wires, and the length of the remaining shielding wires is matched with the length of a wire harness shielding ring. According to the invention, the redundant length of the shielding wire is cut off, and then the shielding net is turned over to the copper ring, so that the damage to the wire harness is avoided, and the yield of the wire harness is improved.

The utility model relates to the technical field of fire extinguisher valve body assembly, in particular to fire extinguisher valve body assembly equipment. Comprising a workbench; the conveying mechanism is used for circularly conveying valve body parts, a plurality of assembling carriers are placed on the top of the conveying mechanism, and the conveying mechanism comprises a first conveying frame and a second conveying frame which are fixed to the two sides of the top of the workbench; the top of the workbench is provided with a valve body plastic shell feeding mechanism along the first conveying frame, and the valve body plastic shell feeding mechanism is used for feeding and assembling valve body plastic shells; the spring feeding and mounting mechanism is used for feeding and assembling the spring in the valve body; and the copper head feeding and mounting mechanism is used for feeding and assembling the copper head of the valve body. According to the fire extinguisher valve body assembling equipment, the whole assembling process is high in automation degree, the assembling efficiency is greatly improved, the manual labor intensity is reduced, the assembling accuracy can be guaranteed, normal use of a fire extinguisher is not affected, and therefore the yield is improved.

The invention belongs to the technical field of metal powder materials, and particularly relates to a method for coating nickel powder with barium titanate, which comprises the following steps: preparing an inner shell of nickel oxide and / or sulfide; dispersing the nickel powder with the inner shell in the dispersion liquid; sequentially adding a barium compound and a titanium compound into the dispersion liquid; the nickel powder with the inner shell and the barium compound and the titanium compound adsorbed on the surface is dried, and the barium compound and the titanium compound on the surface react to form a barium titanate coated outer shell; and dispersing the dried coated powder to form the barium titanate coated nickel powder with the double-shell structure. According to the nickel powder with the double-shell structure prepared by the technical scheme, the co-firing property of the nickel powder and a dielectric material is improved through the barium titanate shell of the outer shell, the combination degree of nickel and the dielectric material can be better improved through the nickel oxide and / or the nickel sulfide of the inner shell, and the dielectric property of the dielectric material is improved. Therefore, the yield of the nickel powder and the dielectric material in the process of preparing the electronic component is improved, and the electrical property of the electronic component is improved.

The invention relates to a production assembly method and system based on an automobile USB interface and the automobile USB interface, and relates to the field of automobile parts, and the method comprises the steps: obtaining the area image information of a preset assembly area; determining a current placement feature according to the regional image information and a preset object reference placement feature; when the current placement feature is inconsistent with the object reference placement feature, determining a posture adjustment parameter according to the current placement feature and the object reference placement feature; controlling a preset posture adjusting device to adjust the posture of a preset light guide object according to the posture adjusting parameters; and after the posture adjustment is completed, a preset clamping device is controlled to clamp the light guide object into a preset preassembling area for preassembling. The method has the effect of improving the working efficiency.

The embodiment of the invention provides a solar cell and a photovoltaic module. The solar cell comprises a silicon substrate, the silicon substrate is provided with a first surface, the first surface comprises metalized areas and non-metalized areas which are alternately distributed in the first direction, the non-metalized areas located in the edge area of the first surface are edge non-metalized areas, and the edge non-metalized areas are edge non-metalized areas; the non-metallization area in the central area of the first surface is a central non-metallization area; the dielectric layer is arranged on the surface of the metallization region; the doped conductive layer is arranged on one side, deviating from the silicon substrate, of the dielectric layer; wherein the depth of the edge non-metallization area is smaller than that of the central non-metallization area. According to the embodiment of the invention, the damage to the edge area of the solar cell in the cleaning process can be reduced, the phenomenon of edge breakage is avoided, and the yield of the solar cell is improved.

The invention relates to the field of aluminum material machining equipment, and particularly discloses an aluminum material milling center which comprises a milling assembly and a double-material conveying mechanism, the milling assembly comprises a base, a rotating disc, a first milling machine head and a second milling machine head, and the first milling machine head and the second milling machine head are arranged on the rotating disc; the double-material conveying mechanism is arranged on one side of the milling assembly and comprises a sliding base, an outer ring, an inner ring, a guide column, a clamping jaw sliding seat, a screw rod, a screw rod driving mechanism, a rotary driving mechanism, an upper clamping jaw and a lower clamping jaw; a linkage rod is arranged between the inner ring and the rotating disc and can drive the rotating disc to synchronously and horizontally rotate by the same angle according to the rotating angle of the inner ring. By the adoption of the aluminum material milling center, synchronous machining of two aluminum materials can be achieved, and hole sites at different angles in the outer contours of the aluminum materials can be completed through one-time clamping.

The invention relates to the technical field of integrated circuit chip packaging, in particular to an integrated circuit chip processing and packaging device and a packaging method thereof. Comprising a workbench, two sets of sliding grooves are symmetrically formed in the workbench, a first threaded rod is rotationally connected into one set of sliding grooves, and the first threaded rod is in transmission connection with a glue sealing assembly; the workbench is fixedly connected with a glue guide mechanism; the glue sealing assembly comprises two sets of movable supports, a second threaded rod is rotationally connected between the two sets of movable supports, and the second threaded rod is in threaded connection with a glue outlet mechanism. A plurality of integrated circuit chips are placed on a slide holder, clamping of the slide holder and a glue guide mechanism is completed, the integrated circuit chips are fixed in a glue injection space, and a first threaded rod and a second threaded rod drive a glue outlet mechanism to perform transverse and longitudinal intermittent movable glue injection until glue injection operation on all the integrated circuit chips is completed.