Chip package auxiliary detection device

Abstract

The utility model discloses a chip package auxiliary detection device, include: bearing base, its top fixedly connected with the mounting seat cylinder, the inside fixed mounting of mounting seat cylinder has the lift cylinder, the telescopic end top fixed mounting of lift cylinder has the bearing connecting plate, the upper surface fixed mounting of bearing connecting plate has visual detection camera no.

Description

Technical Field

[0001] This utility model relates to the field of chip testing technology, and in particular to a chip packaging auxiliary testing device. Background Technology

[0002] In the existing technology, chip is a general term for semiconductor component products. In electronics, chip is a way to miniaturize circuits (mainly including semiconductor devices, but also passive components, etc.) and is often manufactured on the surface of semiconductor wafers. Before packaging, chips must be tested to ensure the quality of each chip.

[0003] A search revealed a Chinese patent application with patent number 202221804355.2, which discloses a chip packaging auxiliary inspection device. The device includes two 2D cameras, located on either side of the main body of the chip appearance inspection device. These cameras assist the main body in inspecting the other two sides of the chip. Combined with the main body, all four sides of the chip can be inspected, resulting in more comprehensive chip inspection and reducing the possibility of defective chips being released. Furthermore, the 2D cameras can be moved back and forth by a reciprocating mechanism, allowing them to move along with the chip. This results in longer inspection time and better performance.

[0004] This device uses the reciprocating movement of a 2D camera to extend the time for visual inspection of chips. The extended inspection time does not affect the inspection effect. However, extending the inspection time will not increase the probability of visual inspection detecting defective products, but will increase the overall structural complexity of the device, which is not conducive to the use of the visual inspection device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a chip packaging auxiliary testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A chip packaging auxiliary testing device, comprising:

[0008] A support base has a mounting sleeve fixedly connected to its top. A lifting cylinder is fixedly installed inside the mounting sleeve. A support connecting plate is fixedly installed at the top of the telescopic end of the lifting cylinder. A second visual inspection camera is fixedly installed on the upper surface of the support connecting plate.

[0009] The support frame has multiple fixed connecting columns fixedly connected to its bottom end. The bottom end of each fixed connecting column is fixedly connected to a limiting plate. The lower surface of the limiting plate is fixedly connected to multiple limiting sliding columns. The middle part of the outer wall of each limiting sliding column is fixedly connected to the support connecting plate.

[0010] A support glass plate is fixedly installed on the top of the support mounting frame and positioned above the second visual inspection camera, and the upper surface of the support glass plate carries the chip to be inspected.

[0011] The mounting frame is a square frame, and a visual inspection camera for visually inspecting the chip to be inspected is set above its two aligned corners.

[0012] As a further embodiment of this utility model: a plurality of mounting support frames are fixedly installed on the top of the bearing base, a lower light-shielding box is fixedly installed on the top of the plurality of mounting support frames, and an upper light-shielding box is fixedly installed on the top of the lower light-shielding box.

[0013] As a further embodiment of this utility model: the top ends of the two mounting support frames are fixedly connected with positioning hinge ball heads, and the top ball head of the positioning hinge ball head is hinged with a hinge sleeve.

[0014] As a further embodiment of this utility model: a mounting sleeve is fixedly installed at the top of the hinge joint sleeve, and the visual inspection camera is fixedly installed inside the mounting sleeve.

[0015] As a further embodiment of this utility model: a light-blocking curtain is fixedly installed on the outer wall of the supporting mounting frame, and a limiting plate is covered at the bottom end of the light-blocking curtain. The limiting plate is sleeved on the outside of the second visual inspection camera.

[0016] As a further improvement of this utility model: a connecting mounting plate is fixedly connected to the top of the outer wall of the mounting base, and the bottom end of the limiting slide column passes through the connecting mounting plate and extends downward.

[0017] As a further improvement of this utility model: the limiting slide post is slidably connected to the connecting mounting plate, and a limiting ring is fixedly installed at the bottom of the extension end of the limiting slide post.

[0018] As a further improvement of this utility model: an industrial computer is fixedly installed on the top of the supporting base, and the industrial computer is connected to the lifting cylinder, visual inspection camera one, and visual inspection camera two through wires.

[0019] Compared with the prior art, the present invention provides a chip packaging auxiliary testing device, which has the following beneficial effects:

[0020] 1. This chip packaging auxiliary inspection device uses a visual inspection camera 1 to acquire images of the four sides and top of the chip from two aligned corners at an angle, and a visual inspection camera 2 to acquire images of the bottom, achieving 360° appearance inspection of the chip's four sides and top and bottom without blind spots, avoiding the blind spots of traditional single-view inspection and improving the defect detection rate; the angle of camera 1 can be flexibly adjusted to adapt to the inspection needs of different chip models, enhancing the equipment's versatility.

[0021] 2. The chip packaging auxiliary detection device has a well-designed light-shielding system: Camera 1 is placed inside a light-shielding box to avoid interference from external light; Camera 2 covers the side wall of the limiting plate through a light-shielding curtain on the outer wall of the mounting frame, and works in conjunction with the limiting slide column of the lower lifting structure and the connecting mounting plate to effectively isolate ambient light and ensure exposure effect and image clarity.

[0022] 3. The chip packaging auxiliary testing device has a square frame structure for the support mounting frame. Through the linkage of the limiting plate, the limiting slide post and the connecting mounting plate, and with the corner overlap limit and limiting ring on the mounting plate on the mounting support frame, the vertical lifting limit of the supporting glass plate is realized, ensuring the accurate relative position of the chip and the camera and improving the consistency of testing.

[0023] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model;

[0025] Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model.

[0026] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Support base; 2. Loading robot; 3. Unloading robot; 4. Industrial computer; 5. Mounting support frame; 6. Lower light-shielding housing; 7. Upper light-shielding housing; 8. Mounting sleeve; 9. Connecting mounting plate; 10. Lifting cylinder; 11. Positioning hinge ball joint; 12. Hinge joint sleeve; 13. Mounting clamp; 14. Visual inspection camera one; 15. Support connecting plate; 16. Visual inspection camera two; 17. Limiting plate; 18. Fixed connecting column; 19. Support mounting frame; 20. Supporting glass plate; 21. Chip to be tested; 22. Light-shielding curtain; 23. Limiting sliding column; 24. Limiting ring clamp. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] A chip packaging auxiliary testing device, such as Figures 1 to 3 As shown, it includes: a carrier glass plate 20 for carrying the chip 21 to be inspected, a visual inspection camera 14 and a visual inspection camera 26 for performing appearance inspection on the chip 21 to be inspected.

[0030] The upper surface of the supporting glass plate 20 is set as a square. Two visual inspection cameras 14 are set and positioned above the supporting glass plate 20, corresponding to the two corners of the supporting glass plate 20. They are tilted and aligned with the chip 21 to be inspected, and high-definition images are acquired from the four sides and top of the chip 21 to be inspected from two angles.

[0031] Visual inspection camera 216 is positioned directly below the supporting glass plate 20 to collect data on the appearance of the chip 21 to be inspected from below. Visual inspection camera 14 and visual inspection camera 216 can be general-purpose SUNPN production line cameras or Kexun semiconductor inspection cameras, equipped with exposure lamps; or cameras with exposure capabilities can be used directly, such as Cognex CAM-CIC-10MR-10-GC or Keyence LJ-S8000 series.

[0032] The supporting glass plate 20 is made of borosilicate glass with a thickness of one millimeter. It is colorless, has high light transmittance, and reduces the impact on the visual inspection camera 216.

[0033] A support mounting frame 19 is fixedly installed at the bottom of the support glass plate 20. Fixed connecting columns 18 are welded to the four corners of the bottom of the support mounting frame 19. Limiting plates 17 are welded to the bottom of the fixed connecting columns 18. An installation through groove is opened on the upper surface of the limiting plates 17. The top of the visual inspection camera 2 16 is snapped into the installation through groove.

[0034] The mounting frame 19 is set as a square frame, and a light-blocking curtain 22 is fixedly bonded to its outer wall. The bottom end of the light-blocking curtain 22 covers the side wall of the limiting plate 17 to ensure the exposure effect of the visual inspection camera 16.

[0035] The bottom of the visual inspection camera 16 is fixedly installed with a load-bearing connecting plate 15. The four corners of the lower surface of the limiting plate 17 are fixedly connected with limiting sliding columns 23. The middle part of the outer wall of the limiting sliding column 23 is fixedly connected to the load-bearing connecting plate 15.

[0036] The lower part of the four limiting slide pins 23 is slidably mounted with a connecting mounting plate 9, and the bottom end of the limiting slide pin 23 passes through the connecting mounting plate 9 and extends downward. The external end of the extended end is fixedly mounted with a limiting ring 24.

[0037] A mounting base 8 is welded to the middle of the lower surface of the mounting plate 9. The inner cavity of the mounting base 8 is connected to the mounting plate 9, and a lifting cylinder 10 (existing technology) is fixedly installed inside the mounting base 8. The telescopic end of the lifting cylinder 10 is fixedly installed on the lower surface of the bearing connecting plate 15.

[0038] A support base 1 is fixedly connected to the middle of the outer wall of the mounting base 8. An industrial computer 4 is fixedly installed at the front end of the top of the support base 1. The industrial computer 4 is connected to the lifting cylinder 10, the first vision inspection camera 14 and the second vision inspection camera 16 through wires, and controls the lifting cylinder 10 to lift and lower, controls the first vision inspection camera 14 and the second vision inspection camera 16 to acquire image data of the chip 21 to be inspected, processes the acquired image data, and determines whether the corresponding chip 21 to be inspected has appearance defects.

[0039] Four mounting support frames 5 are fixedly installed on the top of the support base 1, corresponding to the four corners of the support mounting frame 19 respectively, and a lower light-shielding box 6 is fixedly installed on the top of the four mounting support frames 5, and an upper light-shielding box 7 is fixedly installed on the top of the lower light-shielding box 6.

[0040] The lower light-shielding box 6 and the upper light-shielding box 7 constitute a light-shielding box. Both visual inspection cameras 14 are located inside the light-shielding box to ensure the exposure and data acquisition effect of the visual inspection cameras 14.

[0041] Two of the mounting support frames 5 are fixedly connected to the top of a positioning hinge ball head 11. The top of the positioning hinge ball head 11 is hinged to a hinge joint sleeve 12. The outer wall of the hinge joint sleeve 12 is threaded with a fixing bolt. Tightening the fixing bolt clockwise compresses the positioning hinge ball head 11, so that the positioning hinge ball head 11 and the hinge joint sleeve 12 are relatively fixed.

[0042] A mounting sleeve 13 is fixedly installed at the top of the hinge sleeve 12. The visual inspection camera 14 is fixedly installed inside the mounting sleeve 13. The camera angle and direction of the visual inspection camera 14 can be adjusted according to actual needs.

[0043] The mounting support frame 5 includes an upper mounting plate and a lower mounting plate, with four connecting support columns welded between the upper and lower mounting plates. The lower mounting plate is fixedly installed on the top of the bearing base 1, and the upper mounting plate is positioned above the bearing mounting frame 19. One corner of the upper mounting plate coincides with one corner of the bearing mounting frame 19, and cooperates with the limiting ring 24 to limit the bearing mounting frame 19.

[0044] The two sides of the support base 1 are respectively equipped with a loading robot 2 and a unloading robot 3 to load and unload the chip 21 to be tested; both the loading robot 2 and the unloading robot 3 are suction cup type, and the specific model can be selected from the market according to the actual situation.

[0045] Working principle:

[0046] Please refer to Figures 1 to 3 Assemble the device as shown in the figure;

[0047] In actual use, the industrial computer 4 first controls the lifting cylinder 10 to remain in a retracted state, and the loading robot 2 places the chip 21 to be inspected on the upper surface of the supporting glass plate 20. Then, the lifting cylinder 10 extends, and the supporting glass plate 20 is raised through the supporting mounting frame 19 until the supporting mounting frame 19 is in contact with the upper mounting plate of the mounting support frame 5. Then, the industrial computer 4 controls two vision inspection cameras 14 and 16 to collect image data from the chip 21 to be inspected. Based on the collected image data, the industrial computer 4 determines whether the chip 21 to be inspected has defects. If the chip has defects, the unloading robot 3 is controlled to transfer the chip 21 to the defective product storage box. If the chip does not have defects, the unloading robot 3 transfers the chip 21 to the packaging line to wait for packaging.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A chip packaging auxiliary testing device, characterized in that, include: The support base (1) has a mounting sleeve (8) fixedly connected to its top. A lifting cylinder (10) is fixedly installed inside the mounting sleeve (8). A support connecting plate (15) is fixedly installed at the top of the telescopic end of the lifting cylinder (10). A visual inspection camera (16) is fixedly installed on the upper surface of the support connecting plate (15). The support mounting frame (19) has multiple fixed connecting columns (18) fixedly connected to its bottom end. The bottom end of the fixed connecting column (18) is fixedly connected to a limiting plate (17). The lower surface of the limiting plate (17) is fixedly connected to multiple limiting sliding columns (23). The middle part of the outer wall of the limiting sliding column (23) is fixedly connected to the support connecting plate (15). The supporting glass plate (20) is fixedly installed on the top of the supporting mounting frame (19) and set above the visual inspection camera (16), and the upper surface of the supporting glass plate (20) carries the chip to be inspected (21). The mounting frame (19) is set as a square frame, and a visual inspection camera (14) for visual inspection of the chip (21) to be inspected is set above its two aligned corners.

2. The chip packaging auxiliary testing device according to claim 1, characterized in that: The top of the support base (1) is fixedly installed with multiple mounting support frames (5), the top of the multiple mounting support frames (5) is fixedly installed with a lower shading box (6), and the top of the lower shading box (6) is fixedly installed with an upper shading box (7).

3. The chip packaging auxiliary testing device according to claim 2, characterized in that: Two of the mounting support frames (5) are fixedly connected to the top of a positioning hinge ball head (11), and the top of the positioning hinge ball head (11) is hinged to a hinge sleeve (12).

4. The chip packaging auxiliary testing device according to claim 3, characterized in that: The top end of the hinge sleeve (12) is fixedly installed with a mounting sleeve (13), and the visual inspection camera (14) is fixedly installed inside the mounting sleeve (13).

5. The chip packaging auxiliary testing device according to claim 1, characterized in that: A light-blocking curtain (22) is fixedly installed on the outer wall of the load-bearing mounting frame (19). The bottom end of the light-blocking curtain (22) is covered with a limiting plate (17), which is sleeved on the outside of the visual inspection camera (16).

6. The chip packaging auxiliary testing device according to claim 1, characterized in that: The top of the outer wall of the mounting base (8) is fixedly connected to a connecting mounting plate (9), and the bottom end of the limiting slide (23) passes through the connecting mounting plate (9) and extends downward.

7. The chip packaging auxiliary testing device according to claim 6, characterized in that: The limiting slide post (23) is slidably connected to the connecting mounting plate (9), and a limiting ring (24) is fixedly installed at the bottom of the extension end of the limiting slide post (23).

8. The chip packaging auxiliary testing device according to claim 1, characterized in that: An industrial computer (4) is fixedly installed on the top of the support base (1). The industrial computer (4) is connected to the lifting cylinder (10), visual inspection camera one (14) and visual inspection camera two (16) through wires.

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