Integrated circuit chip packaging and testing equipment

Abstract

The present invention discloses an integrated circuit chip packaging and testing device, including a horizontal plate, the lower end of which is connected to two supporting frames, and the upper end of which is symmetrically fixedly connected to two vertical plates; a transmission mechanism, which includes two transmission rollers arranged between the vertical plates, the front and rear ends of the rotating shafts of the two transmission rollers are respectively connected to the two vertical plates for rotation, a transmission belt is wound around the two transmission rollers, a driving motor is installed on the front side of the vertical plate located at the front side, the output shaft of the driving motor passes through the vertical plate at the front side, and is fixedly connected to the front end of one of the transmission rollers; a detection mechanism, which includes an L-shaped plate fixedly connected to the rear side of the rear vertical plate. During the use of the device, on the basis of ensuring the detection quality, the detection continuity is also strong, which is convenient for docking with the front-end process and subsequent processes. In addition, during the detection, two-sided detection can be achieved, which improves the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the field of chip packaging and testing, and in particular to an integrated circuit chip packaging and testing device. Background Art

[0002] Chip packaging visual testing is a type of packaging testing, which is a vital part of the semiconductor manufacturing process. It uses machine vision technology to detect and evaluate various quality indicators of chip packaging. Chip packaging visual testing uses high-precision image sensors and image processing algorithms to monitor and detect various defects and quality problems in chip packaging in real time. This link is crucial to ensuring the performance, reliability and stability of the chip, because it is directly related to the quality and yield of the final product;

[0003] Traditional visual inspection heads usually require the chip to be stationary or moving slowly during inspection to ensure the clarity and accuracy of image acquisition. However, on actual production lines, chips are often in intermittent motion and the test continuity rate is low, which in turn affects the continuous operation of the front-end packaging process and subsequent testing processes, reducing overall production efficiency. Secondly, most of the existing chip packaging visual testing technologies can only inspect a single side of the chip. Due to the complexity of the chip packaging structure, single-sided inspection often cannot fully cover all potential defects, such as bent pins, poor solder joints, etc. Therefore, after completing the single-sided inspection, the other side of the chip needs to be inspected again, which not only adds unnecessary processes and costs, but also extends the production cycle and reduces production efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose an integrated circuit chip packaging and testing equipment. During use, the equipment not only ensures the detection quality, but also has strong detection continuity, which is convenient for docking with the front end and subsequent processes. In addition, during detection, two-sided detection can be achieved, thereby improving the detection efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An integrated circuit chip packaging and testing device comprises a horizontal plate, the lower end of which is connected to two supporting frames, and the upper end of which is symmetrically fixedly connected to two vertical plates; a transmission mechanism, wherein the transmission mechanism comprises two transmission rollers arranged between the vertical plates, the front and rear ends of the rotating shafts of the two transmission rollers are respectively connected to the two vertical plates for rotation, a transmission belt is wound around the two transmission rollers, a driving motor is installed on the front side of the vertical plate located on the front side, the output shaft of the driving motor passes through the vertical plate on the front side, and is fixedly connected to the front end of one of the transmission rollers; a detection mechanism, wherein the detection mechanism comprises an L-shaped plate fixedly connected to the rear side of the rear vertical plate, the upper end of the L-shaped plate is fixedly connected to the horizontal plate, a detection component is arranged below the horizontal plate, the left side of the detection component is fixedly connected to the L-shaped hard plate, and the detection component is a visual detector; a following detection mechanism, wherein the following detection mechanism is used to improve the quality of detection on the basis of ensuring the test efficiency; a rotating mechanism, wherein the rotating mechanism is used to improve the comprehensiveness of the test; a cleaning mechanism, wherein the cleaning mechanism cleans before the chip packaging test to improve the detection effect.

[0007] Preferably, the following detection mechanism includes a slide groove opened at the lower end of the horizontal plate, a slider that can slide left and right is arranged in the slide groove, the left side of the slider is elastically connected to the left inner wall of the slide groove through a spring, the lower end of the slider is fixedly connected to a mounting rod, and the lower end of the mounting rod is fixedly connected to the upper end of the detection component.

[0008] Preferably, a guide rod is fixedly connected between the left and right inner walls of the slide groove, the guide rod passes through the slide block, and the guide rod is slidably connected to the slide block.

[0009] Preferably, a plurality of elastic plates are fixedly connected to the outer wall of the transmission belt, and a plurality of groups of support bars are fixedly connected to the outer side of the transmission belt, each group of the support bars is composed of two support bars, and a rotating shaft is rotatably connected between every two matching support bars, and an L-shaped plate is fixedly connected to the rotating shaft, and the number of the L-shaped plates is the same as that of the elastic plates, and they match each other.

[0010] Preferably, the rotating mechanism includes a second connecting plate fixedly connected to the vertical plate on the rear side, a second rubber strip is provided at the upper end of the second connecting plate, the lower end of the horizontal plate is fixedly connected to the first connecting plate, the lower end of the first connecting plate is fixedly connected to the first rubber strip, the rear end of each of the rotating shafts is fixedly connected to a friction column, and a rubber layer is provided on the outer side of each of the friction columns.

[0011] Preferably, the front end of each rotating shaft passes through the corresponding support bar, the outer side of the front end of each rotating shaft is fixedly connected to a limit bar, and the front side of each front support bar is fixedly connected to a horizontal support bar and a vertical support bar.

[0012] Preferably, the cleaning mechanism comprises a fixing plate installed on the front side of the front vertical plate, a hollow bar is fixedly connected to the rear side of the fixing plate, and a plurality of air holes are formed on the rear inner wall of the hollow bar.

[0013] Preferably, a connecting column is fixedly connected to the left side of the horizontal plate, a columnar cavity is provided in the connecting column, a piston block that can slide left and right is provided in the columnar cavity, a connecting rod is fixedly connected to the right side of the piston block, the right end of the connecting rod passes through the columnar cavity and extends into the slide groove, and the right end of the connecting rod is fixedly connected to the left side of the slider.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The drive motor drives the transmission belt to move stably, thereby driving the continuous movement of multiple L-shaped plates and elastic plates, thereby realizing the automated and continuous transmission of chip packages. What is more important is that the detection component can keep synchronous movement with the chip package. This design ensures the high accuracy of the detection process, and the continuous operation of the transmission belt greatly facilitates the seamless connection with the front-end process and subsequent processes, improving the fluency and efficiency of the overall production line.

[0016] The combined design of the friction roller, the first rubber strip and the second rubber strip can automatically and accurately complete the flipping action during the movement of the chip package, thereby realizing continuous two-sided inspection. This automated process completely eliminates the need for manual intervention and significantly improves inspection efficiency.

[0017] The motion characteristics of the piston block under the action of the connecting rod are utilized. By alternating between slow rightward movement and fast leftward movement, combined with the design of the connecting tube and the hollow bar, airflows of different speeds are generated. When the piston block moves slowly to the right, the air flow generated is gentle and has minimal impact on the surrounding environment; when the piston block moves quickly to the left, a high-speed backward airflow can be quickly generated. This airflow can not only efficiently remove dust from the surface of the chip package, but also because the chip package is placed on the L-shaped plate with the pins supported downward, the airflow can easily penetrate the upper and lower sides of the chip package, achieving a comprehensive and in-depth cleaning effect, further improving the cleanliness and final quality of the product.

[0018] To sum up, compared with the existing technology, in actual use, the equipment is cleaned before detection and is in a continuous working state during detection, and the chip packaging and detection components are relatively static. In this way, the detection accuracy is improved while ensuring the detection efficiency. At the same time, double-sided detection can be achieved without the need for subsequent separate flipping and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an integrated circuit chip packaging and testing device proposed by the present invention;

[0020] Figure 2 This is an enlarged schematic diagram of location A of an integrated circuit chip packaging and testing device proposed by the present invention;

[0021] Figure 3 This is an enlarged view of the transmission belt part;

[0022] Figure 4 It is a structural schematic diagram of the cleaning mechanism;

[0023] Figure 5 for Figure 4 Schematic diagram of the rear structure;

[0024] Figure 6 for Figure 4 Schematic cross-sectional view of ;

[0025] Figure 7 This is a schematic diagram of the structure of the chip turned over.

[0026] In the figure: 1 horizontal plate, 2 vertical plate, 3 driving motor, 4 driving belt, 5 L-shaped plate, 6 fixed plate, 7 elastic plate, 8 support bar, 9 rotating shaft, 10 L-shaped plate, 11 horizontal abutment bar, 12 vertical abutment bar, 13 limit bar, 14 friction column, 15 first connecting plate, 16 second connecting plate, 17 second rubber strip, 18 first rubber strip, 19 horizontal plate, 20 slide groove, 21 guide rod, 22 slider, 23 spring, 24 mounting rod, 25 detection component, 26 L-shaped hard plate, 27 connecting column, 28 connecting pipe, 29 connecting rod, 30 hollow bar, 31 air hole, 32 columnar cavity, 33 piston block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Reference Figure 1-Figure 7 , an integrated circuit chip packaging and testing device, comprising a horizontal plate 1, the lower end of the horizontal plate 1 is connected to two support frames, the horizontal plate 1 can be supported by the two support frames, and a good supporting effect is achieved, and the upper end of the support frame is symmetrically fixedly connected to two vertical plates 2;

[0029] As an embodiment of the present invention, it also includes a transmission mechanism, which includes two transmission rollers arranged between the vertical plates 2. The transmission rollers have a columnar part and two front and rear rotating shafts. The front and rear ends of the rotating shafts of the two transmission rollers are respectively rotatably connected to the two vertical plates 2. A transmission belt 4 is wound around the two transmission rollers. A driving motor 3 is installed on the front side of the vertical plate 2 on the front side. The output shaft of the driving motor 3 passes through the vertical plate 2 on the front side and is fixedly connected to the front end of one of the transmission rollers. The driving motor 3 here adopts a servo motor with adjustable speed to meet the adjustment function during actual use. The servo motor can control the speed and has very accurate position accuracy. It can convert the voltage signal into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft.

[0030] As an embodiment of the present invention, it also includes a detection mechanism, which includes an L-shaped plate 5 fixedly connected to the rear side of the rear vertical plate 2, the upper end of the L-shaped plate 5 is fixedly connected to the horizontal plate 19, and a detection component 25 is arranged below the horizontal plate 19. The left side of the detection component 25 is fixedly connected to the L-shaped hard plate 26. The detection component 25 is a visual detector. The visual detector is a prior art. The captured target is converted into an image signal through a machine vision product (i.e., an image capture device, which is divided into CMOS and CCD) and transmitted to a dedicated image processing system. According to pixel distribution, brightness, color and other information, it is converted into a digital signal. In this way, various defects and quality problems of chip packaging can be detected. The wide-angle camera is used in this solution to ensure that it is within the range of visual detection even after turning over.

[0031] As an embodiment of the present invention, it also includes a follow-up detection mechanism, which is used to improve the quality of detection on the basis of ensuring test efficiency. The follow-up detection mechanism includes a slide groove 20 opened at the lower end of the horizontal plate 19, and a slider 22 that can slide left and right is arranged in the slide groove 20. The left side of the slider 22 is elastically connected to the left inner wall of the slide groove 20 through a spring 23. The lower end of the slider 22 is fixedly connected to a mounting rod 24, and the lower end of the mounting rod 24 is fixedly connected to the upper end of the detection component 25. A guide rod 21 is fixedly connected between the inner walls on the left and right sides of the slide groove 20. The guide rod 21 passes through the slider 22. 21 is slidably connected with the slider 22, a plurality of elastic plates 7 are fixedly connected to the outer wall of the transmission belt 4, the elastic plates 7 are elastic plates, a plurality of groups of support bars 8 are fixedly connected to the outer side of the transmission belt 4 (the fixed contact points between the elastic plates 7 and the plurality of groups of support bars 8 are small, and the subsequent rotation will not be affected), each group of support bars 8 is composed of two support bars 8, and a rotating shaft 9 is rotatably connected between each two matched support bars 8, the rotating shaft 9 adopts a damping rotating shaft, and it is difficult to rotate when no force is applied, and an L-shaped plate 10 is fixedly connected to the rotating shaft 9, and the number of the L-shaped plates 10 is the same as that of the elastic plates 7, and they are matched;

[0032] As an embodiment of the present invention, it also includes a rotating mechanism, which is used to improve the comprehensiveness of the test. The rotating mechanism includes a second connecting plate 16 fixedly connected to the vertical plate 2 on the rear side, and a second rubber strip 17 is arranged at the upper end of the second connecting plate 16. The lower end of the horizontal plate 19 is fixedly connected to the first connecting plate 15, and the lower end of the first connecting plate 15 is fixedly connected to the first rubber strip 18. The first rubber strip 18 and the second rubber strip 17 are both relatively long to ensure that the rotation can be fully realized. The rear end of each rotating shaft 9 is fixedly connected to a friction column 14, and the outer side of each friction column 14 is provided with a rubber layer. The front end of each rotating shaft 9 passes through the corresponding support strip 8, and the outer side of the front end of each rotating shaft 9 is fixedly connected to the limiting strip 13. The front sides of the support strips 8 on the front sides are fixedly connected with the horizontal support strips 11 and the vertical support strips 12. The movement of the friction column 14 will first move relative to the second rubber strip 17. By utilizing the friction force of the rubber, the friction column 14 can rotate clockwise and move relative to the first connecting plate 15. When it moves to contact the first rubber strip 18, it continues to move, which will cause the friction column 14 to rotate counterclockwise. By setting the horizontal support strips 11 and the vertical support strips 12, after the rotation, it can be ensured that it rotates 90° clockwise first and then 90° counterclockwise. In this way, the chip package can be turned over first and then over again. In addition, it should be noted that a support plate is fixedly connected between the front and rear inner walls of the vertical plate 2, and the upper end surface of the support plate is in contact with the inner top of the transmission belt 4;

[0033] As an embodiment of the present invention, it also includes a cleaning mechanism. The cleaning mechanism cleans the chip packaging test before testing to improve the detection effect. The cleaning mechanism includes a fixed plate 6 installed on the front side of the front vertical plate 2. The rear side of the fixed plate 6 is fixedly connected with a hollow bar 30. A plurality of air holes 31 are provided on the rear inner wall of the hollow bar 30. A connecting column 27 is fixedly connected to the left side of the horizontal plate 19. A columnar cavity 32 is provided in the connecting column 27. A piston block 33 that can slide left and right is provided in the columnar cavity 32. A connecting rod 29 is fixedly connected to the right side of the piston block 33. The right end of the connecting rod 29 passes through the columnar cavity 32 and extends into the slide groove 20. The right end of the connecting rod 29 is fixedly connected to the left side of the slider 22. By using the above process, after the previous chip packaging detection is completed, the chip package to be detected will be cleaned.

[0034] In the present invention, when in use, the chip package is placed on the corresponding L-shaped plate 10, and then the driving motor 3 is started to move the transmission belt 4. The rotation of the transmission belt 4 will drive the multiple L-shaped plates 10 and the elastic plate 7 to move. When the position of the elastic plate 7 moves to contact the L-shaped hard plate 26, it will first push the L-shaped hard plate 26 to move right, thereby driving the detection component 25, the mounting rod 24 and the slider 22 to move right synchronously, and the spring 23 is in a stretched state. At this time, the detection component 25 and the chip package move synchronously, thereby ensuring the accuracy of the detection;

[0035] In the above movement process, the movement of the friction column 14 will first move relative to the second rubber strip 17. The friction force of the rubber can make the friction column 14 rotate clockwise and move relative to the first connecting plate 15. When it moves to contact the first rubber strip 18, it continues to move, which will make the friction column 14 rotate counterclockwise. By setting the horizontal abutment strip 11 and the vertical abutment strip 12, after the rotation, it can be ensured that it rotates 90° clockwise first and then counterclockwise. In this way, the chip package can be turned over first and then turned over again, so that double-sided detection can be achieved in cooperation with the mobile detection component 25. Compared with the existing technology, continuous two-sided detection can be achieved, thereby improving the detection efficiency;

[0036] When the slider 22 moves rightward to contact the right side wall of the slide groove 20, the elastic plate 7 continues to move rightward and slowly bends until it passes through the L-shaped hard plate 26. After completely passing through the L-shaped hard plate 26, the slider 22 quickly moves back under the elastic action of the spring 23. When the next elastic plate 7 contacts the L-shaped hard plate 26, the above process is repeated. During the whole process, the transmission belt 4 is in a continuous operation state. Therefore, by using this method, on the basis of ensuring continuous operation, the detection component 25 will be relatively still with the packaged chip, so that the detection accuracy is strong.

[0037] It should be noted that when the slider 22 moves to the right, the speed is slow, and when it moves to the left, the speed is fast. By using the connecting rod 29, the piston block 33 will slowly move to the right and then quickly move to the left. When the piston block 33 moves to the right, the gas in the hollow bar 30 will be slowly extracted through the connecting pipe 28, and a relatively slow air flow will be generated from the air hole 31. This air flow will hardly affect the surroundings. When the piston block 33 moves to the left quickly, a large amount of gas will be pressed into the hollow bar 30 in a short time and finally discharged from the air hole 31. In this way, a high-speed backward airflow will be generated at the air hole 31. This airflow can clean the chip package and remove dust that may exist on the surface of the chip package. Furthermore, when the chip package is placed on the upper end of the L-shaped plate 10, it is supported by the pins downward. In this way, after the placement is completed, there is a certain gap between the chip package and the upper side of the horizontal part of the L-shaped plate 10. In this way, when the airflow is cleaned, the airflow can pass through the upper and lower sides of the chip package, thereby improving the comprehensiveness of the cleaning.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated circuit chip packaging and testing device, characterized in that: include: A horizontal plate (1), wherein the lower end of the horizontal plate (1) is connected to two support frames, and the upper end of the support frame is symmetrically fixedly connected to two vertical plates (2); A transmission mechanism, the transmission mechanism comprising two transmission rollers arranged between the vertical plates (2), the front and rear ends of the rotating shafts of the two transmission rollers being rotatably connected to the two vertical plates (2) respectively, a transmission belt (4) being wound around the two transmission rollers, a driving motor (3) being installed on the front side of the vertical plate (2) located on the front side, the output shaft of the driving motor (3) passing through the vertical plate (2) on the front side and being fixedly connected to the front end of one of the transmission rollers, a plurality of elastic plates (7) being fixedly connected to the outer side wall of the transmission belt (4), a plurality of groups of support bars (8) being fixedly connected to the outer side of the transmission belt (4), each group of the support bars (8) being composed of two support bars (8), a rotating shaft (9) being rotatably connected between each two matching support bars (8), an L-shaped plate (10) being fixedly connected to the rotating shaft (9), the number of the L-shaped plates (10) being the same as that of the elastic plates (7) and matching each other; A detection mechanism, the detection mechanism comprising an L-shaped plate (5) fixedly connected to the rear side of the rear vertical plate (2), the upper end of the L-shaped plate (5) being fixedly connected to a horizontal plate (19), a detection component (25) being arranged below the horizontal plate (19), the detection component (25) being a visual detector, and the left side of the detection component (25) being fixedly connected to an L-shaped hard plate (26); A follow-up detection mechanism, the follow-up detection mechanism comprising a slide groove (20) provided at the lower end of the horizontal plate (19), a slider (22) being arranged in the slide groove (20) and being capable of sliding left and right, the left side of the slider (22) being elastically connected to the left inner wall of the slide groove (20) via a spring (23), the lower end of the slider (22) being fixedly connected to a mounting rod (24), the lower end of the mounting rod (24) being fixedly connected to the upper end of the detection assembly (25); A rotating mechanism, the rotating mechanism comprising a second connecting plate (16) fixedly connected to the vertical plate (2) at the rear side, the upper end of the second connecting plate (16) being provided with a second rubber strip (17), the lower end of the horizontal plate (19) being fixedly connected to the first connecting plate (15), the lower end of the first connecting plate (15) being fixedly connected to the first rubber strip (18), the rear end of each rotating shaft (9) being fixedly connected to a friction column (14), and the outer side of each friction column (14) being provided with a rubber layer; A cleaning mechanism is used for cleaning before chip packaging testing to improve the detection effect.

2. The integrated circuit chip packaging and testing equipment according to claim 1, characterized in that: A guide rod (21) is fixedly connected between the inner walls on the left and right sides of the slide groove (20), the guide rod (21) passes through the slide block (22), and the guide rod (21) is slidably connected to the slide block (22).

3. The integrated circuit chip packaging and testing equipment according to claim 1, characterized in that: The front end of each rotating shaft (9) passes through the corresponding support bar (8), the outer side of the front end of each rotating shaft (9) is fixedly connected to a limit bar (13), and the front side of each front support bar (8) is fixedly connected to a horizontal support bar (11) and a vertical support bar (12).

4. The integrated circuit chip packaging and testing equipment according to claim 1, characterized in that: The cleaning mechanism comprises a fixed plate (6) mounted on the front side of the front vertical plate (2), a hollow bar (30) being fixedly connected to the rear side of the fixed plate (6), and a plurality of air holes (31) are provided on the rear inner wall of the hollow bar (30).

5. The integrated circuit chip packaging and testing equipment according to claim 4, characterized in that: A connecting column (27) is fixedly connected to the left side of the horizontal plate (19), a columnar cavity (32) is provided in the connecting column (27), a piston block (33) that can slide leftward and rightward is provided in the columnar cavity (32), a connecting rod (29) is fixedly connected to the right side of the piston block (33), the right end of the connecting rod (29) passes through the columnar cavity (32) and extends into the slide groove (20), and the right end of the connecting rod (29) is fixedly connected to the left side of the slider (22).

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