Wafer six-surface detection table

By designing a six-sided wafer detection table including an amplification mechanism and a blowing and suction mechanism, the problems of low detection accuracy and high cost in the prior art are solved, and the detection effects of high accuracy, stability and resource saving are achieved.

CN120044050AActive Publication Date: 2025-05-27ZHUHAI CHENGFENG ELECTRONIC TECH CO LTD

Patent Information

Application Number
CN202510503133.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-05-27
Estimated Expiration
2045-04-22

AI Technical Summary

Technical Problem

The prior art is difficult to achieve high-precision detection in the detection of six-sided surface defects of wafers, especially in the crystal extraction process, the position of the suction nozzle absorbs grains is not accurate, which cannot meet the needs of small depth of field for high-power lenses. At the same time, multiple sets of detection cameras increase costs and affect the quality of the shooting picture.

Method used

A wafer six-sided detection table is designed, including a mounting base plate, a rotating motor, a rotating plate, a detection block, an amplification mechanism and a blow-sucking mechanism. Through the combination of the amplification mechanism and the blowing and suction mechanism, the flip operation and amplification of the grains are realized, making the picture taken by the detection camera clearer.

Benefits of technology

It improves detection accuracy, reduces the layout of the detection camera, saves resources, reduces maintenance and assembly difficulties, and prevents grains from slipping out or throwing out, ensuring the stability and accuracy of detection.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention relates to a wafer six-surface detection table, which belongs to the technical field of wafer detection, and comprises a mounting bottom plate, a rotating motor, a rotating plate, a detection block mounted on the rotating plate, a transverse adjusting mechanism, a longitudinal adjusting mechanism, an amplifying mechanism and a blowing and sucking mechanism. Through cooperative use of the amplification mechanism and the blowing and sucking mechanism, the crystal grain turnover operation is realized, and the crystal grain can be amplified when the crystal grain is turned over or not turned over, so that a picture shot by a detection camera is clearer, the quality of the crystal grain is conveniently judged, the detection precision is improved, the arrangement of the detection camera is reduced, resources are saved, and the production efficiency is improved. In addition, when the crystal grains are turned over, the second amplification seat is located right above the first amplification seat, and the opening of the groove is located on the left side, so that the crystal grains can be prevented from sliding out of the first amplification seat and the second amplification seat when the crystal grains are turned over, and loss caused by throwing of the crystal grains is avoided.
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Description

Technical Field

[0001] The present invention belongs to the technical field of wafer detection, and particularly relates to a six-sided wafer detection table. Background Art

[0002] Wafer testing is a key step in the semiconductor manufacturing process, mainly used to evaluate the quality and performance of wafers; wafer testing mainly includes the following aspects: Appearance inspection includes: Wafer surface defect detection: checking whether there are defects such as scratches and contamination on the wafer surface; Dimension measurement: measuring parameters such as the diameter and flatness of the wafer to ensure that it meets the manufacturing standards; Electrical performance testing: evaluating the electrical performance of the wafer by measuring parameters such as resistance, capacitance, and current on the wafer; This is an important link to ensure the quality and reliability of semiconductor chips; Wafer surface defect detection is an important part of wafer testing, mainly including the following contents: Defect detection: detecting defects such as cracks, scratches, oxides, and particles; Contamination detection: detecting surface foreign objects, chemical residues, etc.; Optical performance detection: evaluating whether the optical characteristics of the wafer meet the requirements.

[0003] In the six-sided surface defect detection of wafers, generally, the form of using a suction nozzle to hold the die is adopted for detection. After the die is picked up by the die picking mechanism, the die picking suction nozzle is used to pick up the die, and then the die picking mechanism makes a rotational movement to meet the needs of six-sided detection. Such a method requires many sets of die picking mechanisms, and during the die picking process, the position where the die picking suction nozzle picks up the die often cannot be particularly accurate, making it impossible to meet the needs of a high-magnification lens with a small depth of field during detection. In addition, during the detection process, since six-sided detection is required, the die needs to be flipped during the detection process. In the prior art, generally, the die is placed on a transparent plate-like object, and multiple sets of upper detection cameras and lower detection cameras are used for shooting. Using multiple sets of upper and lower detection cameras increases the cost, and at the same time, the presence of the plate-like transparent object will affect the quality of the shooting image. Based on this, a six-sided wafer detection table is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a reasonably designed six-sided wafer detection table to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions: A six-sided wafer detection table, including a mounting base plate, a rotating motor, a rotating plate, and a detection block mounted on the rotating plate, further including: A lateral adjustment mechanism and a longitudinal adjustment mechanism mounted on the detection block; An amplifying mechanism installed on the top of the detection block. The amplifying mechanism includes a first amplifying base rotatably connected to the top of the detection block. A storage groove is formed on the top of the first amplifying base. A flipping ear is fixedly connected to one side of the first amplifying base. A second amplifying base is rotatably connected to the top of the first amplifying base. A groove is formed on the bottom of the second amplifying base. A blowing and sucking mechanism installed in the detection block.

[0006] As a further optimized solution of the present invention, the detection block includes a mounting block fixedly connected to the top of the rotating plate. An adjusting block is attached to the top of the mounting block. A fixing block is fixedly connected to the top of the adjusting block. A detection seat is fixedly connected to the top of the fixing block.

[0007] As a further optimized solution of the present invention, the blowing and sucking mechanism includes a third air nozzle fixedly connected to the bottom of the detection seat. The third air nozzle is located inside the fixing block. An air flow channel communicating with the inside of the third air nozzle is formed in the detection seat. An electric ball valve is installed in the air flow channel. An air pipe communicating with the inside of the air flow channel is formed on the detection seat.

[0008] As a further optimized solution of the present invention, a fixing groove is formed on the top of the detection seat. The exhaust end of the air pipe is located inside the fixing groove.

[0009] As a further optimized solution of the present invention, the flipping ear is adapted to the fixing groove, and the first amplifying base is rotatably connected to the top of the detection seat.

[0010] As a further optimized solution of the present invention, the lateral adjustment mechanism includes a connecting plate fixedly connected to the mounting block. A first adjustment column is rotatably connected to the connecting plate. A first adjustment rod is threadedly connected to the inside of the first adjustment column. The end of the first adjustment rod penetrates through the connecting plate and is fixedly connected to a first sliding plate. A first adjustment frame is fixedly connected to the end of the first sliding plate. A first limiting column is slidably connected inside the first adjustment frame.

[0011] As a further optimized solution of the present invention, the first sliding plate is slidably connected to the adjusting block, and the first limiting column is installed on the mounting block.

[0012] As a further optimized solution of the present invention, the longitudinal adjustment mechanism includes a fixing frame fixedly connected to the adjusting block. A second adjustment rod is fixedly connected to the fixing frame. A second adjustment column is threadedly connected to the end of the second adjustment rod. The end of the second adjustment column is rotatably connected to a second sliding plate. The second adjustment rod penetrates through the second sliding plate. A second adjustment frame is fixedly connected to the end of the second sliding plate. A second limiting column is slidably connected inside the second adjustment frame. The second limiting column is installed on the adjusting block.

[0013] As a further optimized solution of the present invention, the second sliding plate is slidably connected to the mounting block, and the second sliding plate is slidably connected to the first sliding plate.

[0014] As a further optimized solution of the present invention, the rotating motor is installed on the top of the mounting base plate. The output end of the rotating motor is fixedly connected with an air slide column. The rotating plate is fixedly connected to the air slide column. The outer surface of the air slide column is provided with a first air nozzle, and the bottom of the outer surface of the air slide column is provided with a second air nozzle. The first air nozzle is internally communicated with the second air nozzle.

[0015] The beneficial effects of the present invention are as follows: 1. Through the combined use of the magnification mechanism and the blowing and suction mechanism, the present invention realizes the turning operation of the crystal grains. Moreover, whether turning or not turning the crystal grains, the crystal grains can be magnified, making the picture taken by the detection camera clearer, thus facilitating the judgment of the quality of the crystal grains, improving the detection accuracy, reducing the arrangement of the detection cameras, saving resources, reducing the difficulty of maintenance and assembly. And when turning the crystal grains, the second magnification seat is directly above the first magnification seat. At this time, the opening of the groove is on the left side. Therefore, when turning the crystal grains, it can prevent the crystal grains from sliding out of the first magnification seat and the second magnification seat, thus avoiding losses caused by the crystal grains being thrown out.

[0016] 2. Through the setting of the blowing and suction mechanism, when not turning the crystal grains, the blowing and suction mechanism can generate an air suction and fixing function, so that the turning ears in the magnification mechanism are stably adsorbed in the fixing grooves, ensuring the stability of the position of the crystal grains during the crystal grain detection process, preventing the position of the crystal grains from moving, resulting in double images in the taken picture, and ensuring the detection accuracy.

[0017] 3. Through the combined use of the rotating motor, the rotating plate and the detection block, the six-sided detection table of the present invention only needs two crystal grain picking mechanisms to complete the crystal grain picking and unloading operations, reducing the arrangement quantity of the crystal grain picking mechanisms, reducing the equipment cost, and being able to adjust the position of the crystal grains so that the crystal grains are at the shooting end of the detection camera, ensuring the shooting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall front three-dimensional structure schematic diagram of the present invention; Figure 2 is the overall bottom three-dimensional structure schematic diagram of the present invention; Figure 3 is the front three-dimensional structure schematic diagram of the detection table of the present invention; Figure 4 is the back three-dimensional structure schematic diagram of the detection table of the present invention; Figure 5 is the front middle part sectional structure schematic diagram of the detection table of the present invention; Figure 6It is a schematic cross-sectional view of the middle part of the side of the test bench of the present invention; Figure 7 It is of the present invention Figure 6 Schematic enlarged view of part A; Figure 8 It is a schematic cross-sectional view of the top of the test bench of the present invention; Figure 9 It is of the present invention Figure 8 Schematic enlarged view of part B; Figure 10 It is a schematic cross-sectional view of the side of the test bench of the present invention; Figure 11 It is a schematic three-dimensional front view of the magnifying mechanism of the present invention; Figure 12 It is a schematic three-dimensional bottom view of the magnifying mechanism of the present invention; Figure 13 It is a schematic three-dimensional front view of the magnifying mechanism after closing of the present invention; Figure 14 It is a schematic three-dimensional side view of the magnifying mechanism after closing of the present invention.

[0019] In the figure: 1. Installation base plate; 2. Rotating motor; 3. Rotating plate; 4. Air slide column; 5. First air nozzle; 6. Second air nozzle; 7. Installation block; 8. Adjusting block; 9. Fixed block; 10. Detection seat; 11. Horizontal adjusting mechanism; 1101. Connecting plate; 1102. First adjusting column; 1103. First adjusting rod; 1104. First sliding plate; 1105. First adjusting frame; 1106. First limiting column; 12. Longitudinal adjusting mechanism; 1201. Fixed frame; 1202. Second adjusting rod; 1203. Second sliding plate; 1204. Second adjusting column; 1205. Second adjusting frame; 1206. Second limiting column; 13. Magnifying mechanism; 1301. First magnifying seat; 1302. Storage groove; 1303. Flipping ear; 1304. Second magnifying seat; 1305. Groove; 14. Fixed groove; 15. Blowing and sucking mechanism; 1501. Third air nozzle; 1502. Air flow channel; 1503. Electric ball valve; 1504. Air pipe. Detailed implementation manners

[0020] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used for further explanation of the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0021] Example: As Figure 1 , Figure 2 , Figure 3 , Figure 4 ,Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown in Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 , a six-sided wafer inspection table includes a mounting base plate 1, a rotating motor 2, a rotating plate 3 and inspection blocks mounted on the rotating plate 3. The inspection blocks are mounted on the rotating plate 3 by bolts. The number of inspection blocks is multiple and can be arranged according to needs. This six-sided inspection table is mounted in an inspection device through the mounting base plate 1 (the inspection device is prior art and not shown in the figure and will not be elaborated in detail). The rotating motor 2 is mounted on the top of the mounting base plate 1. The output end of the rotating motor 2 is fixedly connected to an air slide column 4. The rotating plate 3 is fixedly connected to the air slide column 4. The outer surface of the air slide column 4 is provided with a first air nozzle 5. The first air nozzle 5 is fixedly communicated with an air pump through a hose (both the air pump and the hose are prior art and not shown in the figure and will not be elaborated in detail). The bottom of the outer surface of the air slide column 4 is provided with a second air nozzle 6. The first air nozzle 5 is internally communicated with the second air nozzle 6. The inspection block includes a mounting block 7 fixedly connected to the top of the rotating plate 3. The mounting block 7 is fixedly connected to the top of the rotating plate 3 by bolts. The top of the mounting block 7 is attached to an adjusting block 8. The top of the adjusting block 8 is fixedly connected to a fixing block 9. The top of the fixing block 9 is fixedly connected to an inspection seat 10. Above the inspection seat 10 is provided an inspection camera, and the number of inspection cameras is adaptively set according to needs (the inspection camera is prior art and not shown in the figure and will not be elaborated in detail). By adjusting the positions of the inspection seat 10 and the inspection camera, the quality and clarity of the grain images captured by the inspection camera are ensured, thereby improving the inspection accuracy.

[0022] During use, the grain is sucked by a loading and crystal picking mechanism (the loading and crystal picking mechanism is prior art and not shown in the figure and will not be elaborated in detail) and placed on the tops of multiple inspection seats 10. During this process, after the crystal picking mechanism places one grain on one inspection seat 10 each time, the rotating motor 2 works once, and always makes several of the multiple inspection seats 10 be at the shooting end of the inspection camera before and after each operation. The inspection camera takes pictures of each surface of the grain and sends the captured pictures to a control terminal (the control terminal is prior art and not shown in the figure and will not be elaborated in detail). The control terminal analyzes to judge the quality of the grain. After the inspection is completed, the rotating motor 2 rotates the inspected inspection seat 10 to the unloading station, and the unloaded grain is removed by an unloading and crystal picking mechanism (substantially the same as the loading and crystal picking mechanism). The qualified grains are placed in a qualified product storage box, and the unqualified ones are placed in a defective product box (both the storage box and the defective product box are prior art and not shown in the figure and will not be elaborated in detail).

[0023] As Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 10As shown in the figure, the six-sided inspection table further includes a lateral adjustment mechanism 11 and a longitudinal adjustment mechanism 12 installed on the inspection block. The lateral adjustment mechanism 11 includes a connecting plate 1101 fixedly connected to the mounting block 7. A first adjustment column 1102 is rotatably connected to the connecting plate 1101. A first adjustment rod 1103 is connected to the internal thread of the first adjustment column 1102. The end of the first adjustment rod 1103 penetrates through the connecting plate 1101 and is fixedly connected to a first sliding plate 1104. The first sliding plate 1104 is slidably connected to the adjustment block 8. The end of the first sliding plate 1104 is fixedly connected to a first adjustment frame 1105. A first limit column 1106 is slidably connected inside the first adjustment frame 1105, and the first limit column 1106 is installed on the mounting block 7. The longitudinal adjustment mechanism 12 includes a fixing frame 1201 fixedly connected to the adjustment block 8. A second adjustment rod 1202 is fixedly connected to the fixing frame 1201. The end of the second adjustment rod 1202 is threadedly connected to a second adjustment column 1204. A scale is provided on the second adjustment column 1204 to facilitate precise adjustment of the position of the inspection seat 10, and thus the position of the crystal grains. The end of the second adjustment column 1204 is rotatably connected to a second sliding plate 1203. The second adjustment rod 1202 penetrates through the second sliding plate 1203. The second sliding plate 1203 is slidably connected to the mounting block 7 and is also slidably connected to the first sliding plate 1104. The end of the second sliding plate 1203 is fixedly connected to a second adjustment frame 1205. A second limit column 1206 is slidably connected inside the second adjustment frame 1205, and the second limit column 1206 is installed on the adjustment block 8.

[0024] During use, first adjust the position of the inspection seat 10 according to the position of the shooting end of the inspection camera. When lateral adjustment is required, rotate the first adjustment column 1102 so that the first adjustment rod 1103 extends or shortens under the action of the thread, pushing or pulling the first sliding plate 1104 to move. Then, through the first sliding plate 1104, push or pull the adjustment block 8 to move on the top of the mounting block 7 and the top of the second sliding plate 1203. When longitudinal adjustment is required, rotate the second adjustment column 1204. The second adjustment column 1204 makes the second adjustment rod 1202 move forward or backward under the action of the thread, pushing or pulling the fixing frame 1201, and then pushing or pulling the adjustment block 8 to move forward or backward on the top of the mounting block 7 and the top of the first sliding plate 1104, thereby realizing the adjustment of the position of the inspection seat 10, so that the crystal grains can be in a state directly facing the shooting end of the inspection camera during inspection.

[0025] Such as Figure 5 、 Figure 7 、 Figure 9 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14As shown in the figure, the six-sided inspection table further includes: a magnifying mechanism 13 installed on the top of the inspection block. The magnifying mechanism 13 includes a first magnifying base 1301 rotatably connected to the top of the inspection block. A hemispherical groove adapted to the first magnifying base 1301 is provided at the top of the inspection seat 10. A storage groove 1302 is provided at the top of the first magnifying base 1301. A turning ear 1303 is fixedly connected to one side of the first magnifying base 1301. A second magnifying base 1304 is rotatably connected to the top of the first magnifying base 1301 (both the first magnifying base 1301 and the second magnifying base 1304 are made of transparent convex lens material, so both the first magnifying base 1301 and the second magnifying base 1304 have a magnifying function). When the second magnifying base 1304 rotates to the directly above the first magnifying base 1301, at this time, the first magnifying base 1301 and the second magnifying base 1304 form a sphere. A groove 1305 is provided at the bottom of the second magnifying base 1304. The first magnifying base 1301 is rotatably connected to the top of the inspection seat 10. A fixing groove 14 is provided at the top of the inspection seat 10. The turning ear 1303 is adapted to the fixing groove 14. The setting of the turning ear 1303 realizes a certain limiting function, ensuring that when flipping and not flipping, the lower surface or the upper surface of the crystal grain can be directly above.

[0026] During use, after the position of the inspection seat 10 is adjusted, the crystal grain is placed in the storage groove 1302 through the loading and crystal-taking mechanism, and then the second magnifying base 1304 can be rotated counterclockwise by 180 0 by the loading and crystal-taking mechanism, so that the second magnifying base 1304 rotates to the directly above the first magnifying base 1301, presenting the state as shown in Figure 13 and Figure 14 . At this time, the crystal grain is in the groove 1305. During inspection, both the first magnifying base 1301 and the second magnifying base 1304 can magnify the crystal grain, making the picture taken by the inspection camera clearer, thus facilitating the judgment of the quality of the crystal grain, improving the inspection accuracy, and when flipping the crystal grain, the second magnifying base 1304 is directly above the second magnifying base 1304. At this time, the opening of the groove 1305 is on the left side (as shown in Figure 13 ). Therefore, when flipping the particle size, it can prevent the crystal grain from sliding out of the first magnifying base 1301 and the second magnifying base 1304, thus avoiding losses caused by the crystal grain being thrown out.

[0027] Such as Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10As shown, the six-sided inspection table further includes a blowing and suction mechanism 15 installed in the inspection block. The blowing and suction mechanism 15 includes a third air nozzle 1501 fixedly connected to the bottom of the inspection seat 10. The third air nozzle 1501 is fixedly connected to the second air nozzle 6 through a hose (the hose is a prior art and is not shown in the figure and will not be elaborated in detail). The third air nozzle 1501 is located within the fixed block 9. An air flow channel 1502 communicating with the inside of the third air nozzle 1501 is provided in the inspection seat 10. An electric ball valve 1503 is installed in the air flow channel 1502. An air pipe 1504 communicating with the inside of the air flow channel 1502 is provided on the inspection seat 10. The exhaust end of the air pipe 1504 is located within the fixed groove 14.

[0028] When the crystal grains are placed in the storage groove 1302 and the second magnification seat 1304 is directly above the first magnification seat 1301, at this time, the flipping ear 1303 is located within the left fixed groove 14, and the position of the electric ball valve 1503 enables the left side of the air flow channel 1502 to communicate with the inside of the third air nozzle 1501. Then, the air pump is started to extract the gas within the air flow channel 1502. At this time, the air flow channel 1502 will extract the gas within the left air pipe 1504, causing the flipping ear 1303 to be tightly adsorbed within the left fixed groove 14, ensuring the stability of the crystal grain position during the crystal grain inspection process, preventing the crystal grain position from shifting, resulting in ghosting in the captured image, and guaranteeing the inspection accuracy. When it is necessary to flip the crystal grains, the air pump blows out high-pressure air flow at this time, so that the third air nozzle 1501 injects high-pressure air flow into the left side of the air flow channel 1502, and then the left trachea 1504 blows out high-pressure air flow. The high-pressure air flow will act on the flipping ear 1303, so that the flipping ear 1303 drives the second magnifying seat 1304 and the first magnifying seat 1301 to flip to the right until the flipping ear 1303 is in the fixing groove 14 on the right side. At this time, the electric ball valve 1503 rotates to make the third air nozzle 1501 communicate with the right side of the air flow channel 1502. At this time, the air pump pumps air, so that the third air nozzle 1501 extracts the gas inside the right side of the air flow channel 1502, and then the air flow channel 1502 extracts the gas inside the right trachea 1504, so that the flipping ear 1303 is tightly adsorbed in the fixing groove 14 on the right side, ensuring the stability of the crystal grain position during the crystal grain detection process, preventing the crystal grain position from moving, resulting in double images in the captured picture, ensuring the detection accuracy, and then realizing the flipping detection of the crystal grains, reducing the arrangement of detection cameras, saving resources, reducing the difficulty of maintenance and assembly. In addition, when the flipping ear 1303 is tightly adsorbed in the fixing groove 14 on one side, the electric ball valve 1503 can be controlled to work, so that the third air nozzle 1501 communicates with the inside of the air flow channel 1502 on the other side, and then blows air into the fixing groove 14 on the other side through the trachea 1504 on the other side. The blown air will act on the shooting end of the detection camera, realizing the cleaning function of the detection camera, avoiding the adhesion of pollutants on the detection camera from affecting the shooting clarity, and further improving the quality of the captured image.

[0029] The specific working principle of the present invention is as follows: When in use, first adjust the position of the detection seat 10 according to the position of the shooting end of the detection camera. When horizontal adjustment is required, rotate the first adjustment column 1102 so that the first adjustment rod 1103 extends or shortens under the action of the thread, pushing or pulling the first slide plate 1104 to move, and then pushing or pulling the adjustment block 8 to move on the top of the mounting block 7 and the top of the second slide plate 1203. When vertical adjustment is required, rotate the second adjustment column 1204. The second adjustment column 1204 makes the second adjustment rod 1202 move forward or backward under the action of the thread, pushing or pulling the fixing frame 1201, and then pushing or pulling the adjustment block 8 to move forward or backward on the top of the mounting block 7 and the top of the first slide plate 1104, so as to realize the adjustment of the position of the detection seat 10, so that the crystal grains can be in a state of facing the shooting end of the detection camera during detection; Then, the crystal grains are sucked by the feeding and crystal-taking mechanism and placed in the storage groove 1302, and then the second magnifying seat 1304 can be rotated counterclockwise by 180° through the feeding and crystal-taking mechanism, so that the second magnifying seat 1304 rotates to directly above the first magnifying seat 1301, presenting as Figure 13 and Figure 14In the state shown, when the crystal grain is placed in the storage slot 1302 and the second magnifying base 1304 is directly above the first magnifying base 1301, at this time, the flipping ear 1303 is in the left fixing slot 14, and the position of the electric ball valve 1503 makes the left side of the air flow channel 1502 communicate with the inside of the third air nozzle 1501. Then, the air pump is started to extract the gas in the air flow channel 1502. At this time, the air flow channel 1502 will extract the gas in the left air pipe 1504, so that the flipping ear 1303 is tightly adsorbed in the left fixing slot 14, ensuring the stability of the crystal grain position during the crystal grain detection process, preventing the crystal grain position from moving, resulting in double images in the captured picture, guaranteeing the detection accuracy. After the rotation is completed, the rotation motor 2 is started to rotate the next storage slot 1302 without crystal grains to the feeding end of the crystal grain picking mechanism. During this process, after the crystal grain picking mechanism places a crystal grain on a detection seat 10 each time, the rotation motor 2 works once, and before and after each operation, several of the multiple detection seats 10 are always at the shooting end of the detection camera. The detection camera takes pictures of each surface of the crystal grain and sends the captured pictures to the control terminal for analysis by the control terminal to judge the quality of the crystal grain; During the detection process, after a detection camera detects the upper surface of the crystal grain, during the process of the rotation motor 2 working again to send the crystal grain to the next detection camera, at this time, the air pump blows out high-pressure air flow, so that the third air nozzle 1501 injects high-pressure air flow into the left side of the air flow channel 1502, and then the left air pipe 1504 blows out high-pressure air flow. The high-pressure air flow will act on the flipping ear 1303, so that the flipping ear 1303 drives the second magnifying base 1304 and the first magnifying base 1301 to flip to the right until the flipping ear 1303 is in the right fixing slot 14. At this time, the electric ball valve 1503 rotates to make the third air nozzle 1501 communicate with the right side of the air flow channel 1502. At this time, the air pump sucks air, so that the third air nozzle 1501 extracts the gas in the right side of the air flow channel 1502, and then the air flow channel 1502 extracts the gas in the right air pipe 1504, so that the flipping ear 1303 is tightly adsorbed in the right fixing slot 14, ensuring the stability of the crystal grain position during the crystal grain detection process, preventing the crystal grain position from moving, resulting in double images in the captured picture, guaranteeing the detection accuracy, and thus realizing the flipping detection of the crystal grain, reducing the arrangement of the detection cameras, saving resources, reducing the difficulty of maintenance and assembly. In addition, when the flipping ear 1303 is tightly adsorbed in the fixing slot 14 on one side, the electric ball valve 1503 can be controlled to work, so that the third air nozzle 1501 communicates with the inside of the air flow channel 1502 on the other side, and then blows air into the fixing slot 14 on the other side through the air pipe 1504 on the other side. The blown air will act on the shooting end of the detection camera to realize the cleaning function of the detection camera, avoiding the adhesion of pollutants on the detection camera from affecting the shooting clarity and further improving the quality of the captured image; After multiple repeated flips, it is finally necessary to ensure that the upper surface of the crystal grain is facing upward, that is, the second magnifying seat 1304 is above the first magnifying seat 1301. Therefore, the last flip operation is as follows: The air pump blows out high-pressure air, so that the third air nozzle 1501 injects high-pressure air into the right side of the air flow channel 1502, and then the right trachea 1504 blows out high-pressure air, and the high-pressure air will act on the flip ear 1303, causing the flip ear 1303 to drive the second magnifying seat 1304 and the first magnifying seat 1301 to flip to the left until the flip ear 1303 is in the fixed groove 14 on the left side. At this time, the electric ball valve 1503 rotates to make the third air nozzle 1501 communicate with the left side of the air flow channel 1502. At this time, the air pump sucks air, so that the third air nozzle 1501 sucks the gas in the left side of the air flow channel 1502, and then the air flow channel 1502 sucks the gas in the left trachea 1504, making the flip ear 1303 tightly adsorbed in the left fixed groove 14; When the rotation motor 2 rotates the detected detection seat 10 to the blanking station, the second magnifying seat 1304 is rotated clockwise by 180° through the blanking crystal picking mechanism, so that the second magnifying seat 1304 can be rotated away from directly above the first magnifying seat 1301. The detected crystal grains are taken off by the blanking crystal picking mechanism, and the qualified ones are placed in the qualified product storage box, and the unqualified ones are placed in the defective product box.

[0030] The above embodiments only represent several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A wafer six-sided inspection platform, comprising a mounting base plate (1), a rotating motor (2), a rotating plate (3), and an inspection block mounted on the rotating plate (3), characterized in that: Also includes: A lateral adjustment mechanism (11) and a longitudinal adjustment mechanism (12) mounted on the detection block; An amplifying mechanism (13) mounted on the top of the detection block, the amplifying mechanism (13) comprising a first amplifying seat (1301) rotatably connected to the top of the detection block, a storage slot (1302) being provided on the top of the first amplifying seat (1301), a flip ear (1303) being fixedly connected to one side of the first amplifying seat (1301), a second amplifying seat (1304) being rotatably connected to the top of the first amplifying seat (1301), and a groove (1305) being provided on the bottom of the second amplifying seat (1304); A blowing and suction mechanism (15) is installed in the detection block.

2. The wafer six-side inspection platform according to claim 1, characterized in that: The detection block comprises a mounting block (7) fixedly connected to the top of the rotating plate (3); an adjusting block (8) is attached to the top of the mounting block (7); a fixing block (9) is fixedly connected to the top of the adjusting block (8); and a detection seat (10) is fixedly connected to the top of the fixing block (9).

3. The wafer six-side inspection platform according to claim 2, characterized in that: The blowing and sucking mechanism (15) comprises a third air nozzle (1501) fixedly connected to the bottom of the detection seat (10), the third air nozzle (1501) is located in the fixed block (9), an air flow channel (1502) connected to the inside of the third air nozzle (1501) is opened in the detection seat (10), an electric ball valve (1503) is installed in the air flow channel (1502), and an air pipe (1504) connected to the inside of the air flow channel (1502) is opened on the detection seat (10).

4. The wafer six-side inspection platform according to claim 3, characterized in that: A fixing groove (14) is provided on the top of the detection seat (10), and the exhaust end of the air pipe (1504) is located in the fixing groove (14).

5. The wafer six-side inspection platform according to claim 4, characterized in that: The flip ear (1303) is matched with the fixing groove (14), and the first amplifying seat (1301) is rotatably connected to the top of the detection seat (10).

6. The wafer six-side inspection platform according to claim 2, characterized in that: The lateral adjustment mechanism (11) comprises a connecting plate (1101) fixedly connected to the mounting block (7); a first adjustment column (1102) is rotatably connected to the connecting plate (1101); an internal thread of the first adjustment column (1102) is connected to a first adjustment rod (1103); an end of the first adjustment rod (1103) passes through the connecting plate (1101) and is fixedly connected to a first slide plate (1104); an end of the first slide plate (1104) is fixedly connected to a first adjustment frame (1105); and a first limiting column (1106) is slidably connected inside the first adjustment frame (1105).

7. The six-sided wafer inspection platform according to claim 6, characterized in that: The first slide plate (1104) is slidably connected to the adjustment block (8), and the first limiting column (1106) is mounted on the mounting block (7).

8. The wafer six-side inspection platform according to claim 6, characterized in that: The longitudinal adjustment mechanism (12) comprises a fixing frame (1201) fixedly connected to the adjustment block (8); a second adjustment rod (1202) is fixedly connected to the fixing frame (1201); an end of the second adjustment rod (1202) is threadedly connected to a second adjustment column (1204); an end of the second adjustment column (1204) is rotatably connected to a second slide plate (1203); the second adjustment rod (1202) passes through the second slide plate (1203); an end of the second slide plate (1203) is fixedly connected to a second adjustment frame (1205); a second limiting column (1206) is slidably connected inside the second adjustment frame (1205); and the second limiting column (1206) is mounted on the adjustment block (8).

9. The wafer six-side inspection platform according to claim 8, characterized in that: The second slide plate (1203) is slidably connected to the mounting block (7), and the second slide plate (1203) is slidably connected to the first slide plate (1104).

10. The wafer six-side inspection platform according to claim 1, characterized in that: The rotating motor (2) is mounted on the top of the mounting base plate (1); the output end of the rotating motor (2) is fixedly connected to an air slide column (4); the rotating plate (3) is fixedly connected to the air slide column (4); a first air nozzle (5) is mounted on the outer surface of the air slide column (4); a second air nozzle (6) is mounted on the bottom of the outer surface of the air slide column (4); the first air nozzle (5) is internally connected to the second air nozzle (6).

Citation Information

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