A chip inkjet coding detection device

Abstract

The present invention discloses a chip inkjet detection device, which relates to the field of chip production technology. A chip inkjet detection device includes a frame, a chip conveying mechanism and a visual detection mechanism. The chip conveying mechanism is used to convey chips at a uniform speed. The visual detection mechanism is arranged on the frame and is located above the chip conveying mechanism. The visual detection mechanism includes a moving rail, a plurality of visual detection components and a first drive component. The moving rail is arranged on the frame and is located at a position where the projection of the moving rail and a part of the conveying path of the chip conveying mechanism on the horizontal plane coincides. The visual detection component is slidably arranged on the moving rail. The movement speed of the visual detection component is the same as the movement speed of the chip on the chip conveying mechanism. The chip conveying mechanism can convey chips at a uniform speed. There are multiple visual detection components that move at a uniform speed in the visual detection mechanism. By keeping the visual detection component and the chip conveyed synchronously, the two can be kept relatively still, and non-stop detection can be performed during the conveying process, thereby improving detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of chip production, and in particular to a chip coding detection device. Background Art

[0002] With the rapid advancement of integrated circuit manufacturing technology, quality inspection of chip surface markings (inkjet printing) has become an essential part of the production process. Currently, the industry widely uses automated optical inspection systems based on machine vision to identify and verify chip inkjet printing. These systems typically consist of high-resolution industrial cameras, angled lighting, and image processing units. They capture images of the chip surface and use optical character recognition algorithms to read and verify the inkjet printing content.

[0003] In the prior art, a fixed optical system is typically used to capture images of a stationary chip, and a mechanical positioning device is used to accurately move the chip to a detection station. After the detection is completed, the chip is transported to the next process.

[0004] However, the inventors' long-term experience has revealed significant drawbacks in this prior art: For complex applications requiring multi-angle imaging, the pause-based detection approach severely restricts production efficiency. Frequent start-stop operations not only reduce the number of chips inspected per unit time but also cause additional wear on the precision mechanical structure. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a chip inkjet detection device that can realize inkjet detection of the chip's motion state, greatly improving detection efficiency.

[0006] According to an embodiment of the present invention, a chip inkjet detection device includes a frame; a chip conveying mechanism, which is arranged on the frame, the chip conveying mechanism is used to convey chips at a uniform speed, the chip conveying mechanism is an annular conveyor belt, and the chip moves at a uniform speed on the chip conveying mechanism; a visual inspection mechanism, which is arranged on the frame and located above the chip conveying mechanism, the visual inspection mechanism includes a motion rail, a plurality of visual inspection components and a first drive component, the motion rail is arranged on the frame and is located at a position where the projection of the motion rail and a part of the conveying path of the chip conveying mechanism on the horizontal plane coincides, the visual inspection component is slidably arranged on the motion rail, a plurality of the visual inspection components are connected to the first drive component, and the movement speed of the visual inspection component is the same as the movement speed of the chip on the chip conveying mechanism.

[0007] The invention has at least the following beneficial effects: a chip inkjet detection device includes a frame, a chip conveying mechanism and a visual detection mechanism. The chip conveying mechanism is arranged on the frame. The chip conveying mechanism is used to convey chips at a uniform speed. The chip conveying mechanism is an annular conveyor belt. The chip moves at a uniform speed on the chip conveying mechanism. The visual detection mechanism is arranged on the frame and is located above the chip conveying mechanism. The visual detection mechanism includes a moving rail, a plurality of visual detection components and a first drive component. The moving rail is arranged on the frame and is located at a position where the projection of the moving rail and part of the conveying path of the chip conveying mechanism on the horizontal plane coincides. The visual detection component is slidably arranged on the moving rail. A plurality of visual detection components are connected to the first drive component. The movement speed of the visual detection component is the same as the movement speed of the chip on the chip conveying mechanism. The chip conveying mechanism can convey chips at a uniform speed. There are multiple visual detection components that move at a uniform speed in the visual detection mechanism. By keeping the visual detection component and the chip conveyed synchronously, the two can be kept relatively still, and non-stop detection can be completed during the conveying process, thereby greatly improving the detection efficiency.

[0008] According to some embodiments of the present invention, the chip conveying mechanism includes a conveying rail, a plurality of material trays, and a second drive assembly, the conveying rail is arranged on the frame, the plurality of material trays are slidably arranged on the conveying rail, the plurality of material trays are evenly arranged on the conveying rail, the second drive assembly is arranged on the frame, the plurality of material trays are connected to the second drive assembly, and the second drive assembly drives the material trays to move at a uniform speed along the conveying rail.

[0009] According to some embodiments of the present invention, the second drive assembly includes a second driving disc, a second driven disc and a transmission belt, the second driving disc is rotatably disposed on the frame, the second driven disc is rotatably disposed on the frame, the transmission belt is wound around the second driving disc and the second driven disc, the second driving disc rotates under the drive of the power source and drives the second driven disc to rotate through the transmission belt, a second connecting member is provided on the material tray, one end of the second connecting member is connected to the material tray, and the other end is connected to the transmission belt.

[0010] According to some embodiments of the present invention, the visual detection component includes a mounting base, a red light generator, a green light generator and a camera, the mounting base is slidably set on the motion rail, and a first connecting member is provided on the mounting base, which connects the mounting base and the first driving assembly.

[0011] According to some embodiments of the present invention, the visual inspection mechanism further includes a mask assembly, which can be raised and lowered on the mounting seat, and the mask assembly can be mounted on the material tray.

[0012] According to some embodiments of the present invention, the mask assembly includes a mask, a drive motor and a friction wheel, the mask is mounted on the mounting seat, the inner side surface of the mask is in contact with the outer side surface of the mounting seat, the drive motor is arranged on the mounting seat, the friction wheel is arranged at the output end of the drive motor, the outer ring of the friction wheel is in close contact with the surface of the mask, and the drive motor drives the friction wheel to rotate to drive the mask to rise and fall.

[0013] According to some embodiments of the present invention, a boss is provided on the material tray, the mask is sleeved on the boss, and the boss is a prism.

[0014] According to some embodiments of the present invention, the visual detection mechanism further includes a sliding contact component, which is disposed on the mounting seat and is used to transmit a detection signal of the visual detection component and electrical energy required by the visual detection component.

[0015] According to some embodiments of the present invention, the sliding contact assembly includes several groups of sliding contact rails and integrated sliding contact heads, the several groups of sliding contact rails are arranged on the rack, the integrated sliding contact head is arranged on the mounting seat, and the other end is inserted into the sliding contact rails.

[0016] According to some embodiments of the present invention, a loading robot and a discharging robot are further included. The loading robot and the discharging robot are arranged on one side of the chip conveying mechanism. The loading robot can place the chip to be tested on the moving tray, and the discharging robot can take the tested chip out of the moving tray.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the present invention Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of an embodiment of the present invention Figure 2 (Omit the frame, loading robot and unloading robot);

[0021] Figure 3 A top view of an embodiment of the present invention (the frame, loading robot, and unloading robot are omitted);

[0022] Figure 4 for Figure 2 A partial enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic structural diagram of a visual detection component according to an embodiment of the present invention;

[0024] Figure 6 It is a front view of the structure of the visual detection component according to an embodiment of the present invention.

[0025] Figure Number:

[0026] Rack 10;

[0027] Chip conveying mechanism 20, conveying rail 21, material tray 22, second connecting member 221, boss 222, second driving assembly 23, second driving disc 231, second driven disc 232, transmission belt 233;

[0028] Visual detection mechanism 30, motion rail 31, visual detection assembly 32, mounting base 321, first connecting member 321a, red light generator 322, green light generator 323, camera 324, first driving assembly 33, mask assembly 34, mask 341, driving motor 342, friction wheel 343, sliding contact assembly 35, sliding contact track 351, integrated sliding contact 352;

[0029] Loading robot 40;

[0030] Discharging robot 50. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 6 A chip inkjet detection device includes a frame 10, a chip conveying mechanism 20 and a visual detection mechanism 30.

[0035] The chip conveying mechanism 20 is disposed on the frame 10. The chip conveying mechanism 20 is used to convey chips at a constant speed. The chip conveying mechanism 20 is an endless conveyor belt. The chips move at a constant speed on the chip conveying mechanism 20.

[0036] The visual inspection mechanism 30 is mounted on the frame 10 and positioned above the chip conveying mechanism 20. The visual inspection mechanism 30 includes a motion rail 31, several visual inspection components 32, and a first drive assembly 33. The motion rail 31 is mounted on the frame 10 so that the horizontal projection of the motion rail 31 and a portion of the conveying path of the chip conveying mechanism 20 overlap. The visual inspection components 32 are slidably mounted on the motion rail 31. The several visual inspection components 32 are connected to the first drive assembly 33. The visual inspection components 32 move at the same speed as the chip on the chip conveying mechanism 20.

[0037] It can be understood that the chip conveying mechanism 20 can convey chips at a uniform speed, and there are multiple visual inspection components 32 that move at a uniform speed in the visual inspection mechanism 30. By keeping the visual inspection components 32 and the chips in synchronous conveyance, the two can remain relatively still, completing non-stop inspection during the conveying process, and greatly improving the inspection efficiency.

[0038] Reference Figures 1 to 3 The chip conveying mechanism 20 includes a conveyor rail 21, a plurality of material trays 22, and a second drive assembly 23. The conveyor rail 21 is mounted on the frame 10. The plurality of material trays 22 are slidably mounted on the conveyor rail 21. The plurality of material trays 22 are evenly arranged on the conveyor rail 21. The second drive assembly 23 is mounted on the frame 10. The plurality of material trays 22 are connected to the second drive assembly 23. The second drive assembly 23 drives the material trays 22 to move at a constant speed along the conveyor rail 21.

[0039] It can be understood that in the embodiment of the present invention, the chips are transported via the tray 22. In some embodiments, one tray can hold one chip, and in some other embodiments, one tray can hold two, three, four or even more chips.

[0040] In some embodiments of the present invention, a placement slot can be opened on the material tray, and a chip placement tray that can be embedded in the placement slot is designed. The chip placement tray involves multiple chip accommodating positions. The loading and unloading components can transfer the chip placement tray to load and unload multiple chips at one time, and the visual inspection mechanism 30 can also inspect multiple chips at one time.

[0041] Reference Figure 2 and Figure 3The second drive assembly 23 includes a second drive disc 231, a second driven disc 232, and a transmission belt 233. The second drive disc 231 is rotatably mounted on the frame 10. The second driven disc 232 is rotatably mounted on the frame 10. The transmission belt 233 is wound around the second drive disc 231 and the second driven disc 232. The second drive disc 231 rotates under the power source, and the transmission belt 233 drives the second driven disc 232 to rotate. A second connecting member 221 is provided on the feeding tray 22. One end of the second connecting member 221 is connected to the feeding tray 22, and the other end is connected to the transmission belt 233.

[0042] It is understandable that the second driving disc 231 can drive the transmission belt 233 to rotate, and then drive the material tray 22 to slide along the conveying rail 21 through the second connecting member 221.

[0043] Reference Figures 2 to 6 The visual detection component 32 includes a mounting seat 321, a red light generator 322, a green light generator 323 and a camera 324. The mounting seat 321 is slidably set on the motion rail 31. The mounting seat 321 is provided with a first connecting member 321a, which connects the mounting seat 321 and the first driving component 33.

[0044] It should be noted that, in an embodiment of the present invention, the first drive assembly 33 and the second drive assembly 23 adopt the same driving principle. The first drive assembly 33 also has a driving structure of a driving wheel, a driven wheel and a belt. The first connecting member 321a connects the belt of the first drive assembly 33 and the mounting seat 321.

[0045] Reference Figures 2 to 6 The visual inspection mechanism 30 further includes a mask assembly 34 , which can be raised and lowered on the mounting seat 321 , and the mask assembly 34 can be mounted on the material tray 22 .

[0046] Reference Figures 2 to 6 The mask assembly 34 includes a mask 341, a drive motor 342 and a friction wheel 343. The mask 341 is mounted on the mounting seat 321, and the inner side of the mask 341 is in contact with the outer side of the mounting seat 321. The drive motor 342 is set on the mounting seat 321, and the friction wheel 343 is set at the output end of the drive motor 342. The outer ring of the friction wheel 343 is in close contact with the surface of the mask 341. The drive motor 342 drives the friction wheel 343 to rotate to drive the mask 341 to rise and fall.

[0047] It should be noted that when multiple groups of chips are inspected simultaneously, the red light generators 322 and green light generators 323 of different visual inspection components 32 will interfere with each other. The mask 341 can isolate the mutual interference between different visual inspection components 32. If the mask 341 is fixed, it will interfere with the chips and fail to cover the chips.

[0048] It can be understood that when the projections of the visual detection component 32 and the material tray 22 on the horizontal plane are in the same position, the visual detection component 32 and the material tray 22 move synchronously. At this time, the mask 341 descends under the drive of the drive motor 342 and covers the material tray 22. The light emitted by the red light generator 322 and the green light generator 323 can be completely covered inside the mask 341 without affecting the detection of other visual detection components 32.

[0049] It should be noted that each set of mask components 34 includes at least two sets of drive motors 342 and friction wheels 343 , and the two sets of drive motors 342 and friction wheels 343 are respectively arranged on both sides of the mask 341 .

[0050] Reference Figure 2 A boss 222 is provided on the material tray 22, and the mask 341 is sleeved on the boss 222, and the boss 222 is a prism.

[0051] It is worth noting that when the mask 341 moves downward and is mounted on the material tray 22 , the pyramidal structure of the boss 222 can guide the mask 341 to avoid position deviation of the mask 341 .

[0052] Reference Figure 2 and Figure 4 The visual detection mechanism 30 further includes a sliding contact component 35 , which is disposed on the mounting seat 321 . The sliding contact component 35 is used to transmit the detection signal of the visual detection component 32 and the electrical energy required by the visual detection component 32 .

[0053] Reference Figure 2 and Figure 4 The sliding contact assembly 35 includes several groups of sliding contact rails 351 and integrated sliding contact heads 352. The several groups of sliding contact rails 351 are set on the rack 10, and the integrated sliding contact heads 352 are set on the mounting seat 321, and the other end is inserted into the sliding contact rails 351.

[0054] It can be understood that in an embodiment of the present invention, the power supply lines and signal lines of the red light generator 322, the green light generator 323 and the camera 324 are all arranged in the integrated sliding contact 352, and are connected to the power supply or processor through different sliding rails 351. Through the cooperation of the integrated sliding contact 352 and the sliding rail 351, the visual detection mechanism 30 can realize power supply and signal transmission during movement.

[0055] Reference Figure 1 A chip inkjet printer inspection device further includes a loading robot 40 and a discharging robot 50. The loading robot 40 and the discharging robot 50 are disposed on one side of the chip conveying mechanism 20. The loading robot 40 can place the chip to be tested on the movable tray 22, and the discharging robot 50 can remove the tested chip from the movable tray 22.

[0056] It is worth noting that in some embodiments of the present application, loading and unloading are achieved by a multi-axis manipulator. Through the motion control of the multi-axis manipulator, the holding end of the manipulator is consistent with the moving speed of the tray 22 when loading and unloading. In some other embodiments of the present application, a slide rail can be installed on the gantry to cooperate with the lifting suction head to grab the chip. Multiple groups of suction heads are arranged according to the spacing of the tray 22. The suction heads are driven by a stepper motor to slide along the slide rail at the conveying speed of the tray 22, and the lifting and lowering are completed at the same time to complete the loading or unloading of the chip.

[0057] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A chip inkjet detection device, characterized in that: include: Rack (10); A chip conveying mechanism (20), the chip conveying mechanism (20) being arranged on the frame (10), the chip conveying mechanism (20) being used to convey chips at a uniform speed, the chip conveying mechanism (20) being an annular conveyor belt, and the chips moving at a uniform speed on the chip conveying mechanism (20); A visual inspection mechanism (30), wherein the visual inspection mechanism (30) is arranged on the frame (10) and is located above the chip conveying mechanism (20), the visual inspection mechanism (30) comprises a motion rail (31), a plurality of visual inspection components (32) and a first drive component (33), the motion rail (31) is arranged on the frame (10) and is located so that the projection of the motion rail (31) and a portion of the conveying path of the chip conveying mechanism (20) on a horizontal plane coincides, the visual inspection component (32) is slidably arranged on the motion rail (31), the plurality of visual inspection components (32) are connected to the first drive component (33), and the movement speed of the visual inspection component (32) is the same as the movement speed of the chip on the chip conveying mechanism (20); The chip conveying mechanism (20) includes a conveying rail (21), a plurality of material trays (22), and a second driving assembly (23), wherein the conveying rail (21) is arranged on the frame (10), the plurality of material trays (22) are slidably arranged on the conveying rail (21), the plurality of material trays (22) are evenly arranged on the conveying rail (21), the second driving assembly (23) is arranged on the frame (10), the plurality of material trays (22) are connected to the second driving assembly (23), and the second driving assembly (23) drives the material trays (22) to move at a uniform speed along the conveying rail (21); The visual detection assembly (32) comprises a mounting seat (321), a red light generator (322), a green light generator (323), and a camera (324); the mounting seat (321) is slidably arranged on the motion rail (31); a first connecting member (321a) is provided on the mounting seat (321); the first connecting member connects the mounting seat (321) and the first driving assembly (33); The visual inspection mechanism (30) further comprises a mask assembly (34), wherein the mask assembly (34) can be raised and lowered on the mounting seat (321), and the mask assembly (34) can be mounted on the material tray (22).

2. A chip inkjet detection device according to claim 1, characterized in that: The second drive assembly (23) includes a second drive disc (231), a second driven disc (232) and a transmission belt (233). The second drive disc (231) is rotatably arranged on the frame (10), and the second driven disc (232) is rotatably arranged on the frame (10). The transmission belt (233) is wound around the second drive disc (231) and the second driven disc (232). The second drive disc (231) rotates under the drive of a power source and drives the second driven disc (232) to rotate through the transmission belt (233). A second connecting member (221) is provided on the material tray (22). One end of the second connecting member (221) is connected to the material tray (22), and the other end is connected to the transmission belt (233).

3. A chip inkjet detection device according to claim 1, characterized in that: The mask assembly (34) comprises a mask (341), a drive motor (342) and a friction wheel (343); the mask (341) is sleeved on the mounting seat (321); the inner side surface of the mask (341) is in contact with the outer side surface of the mounting seat (321); the drive motor (342) is arranged on the mounting seat (321); the friction wheel (343) is arranged at the output end of the drive motor (342); the outer ring of the friction wheel (343) is in contact with the surface of the mask (341); the drive motor (342) drives the friction wheel (343) to rotate to drive the mask (341) to rise and fall.

4. A chip inkjet detection device according to claim 3, characterized in that: A boss (222) is provided on the material tray (22), the shield (341) is sleeved on the boss (222), and the boss (222) is a prism.

5. A chip inkjet detection device according to claim 1, characterized in that: The visual detection mechanism (30) further includes a sliding contact component (35), which is arranged on the mounting seat (321) and is used to transmit the detection signal of the visual detection component (32) and the electrical energy required by the visual detection component (32).

6. A chip inkjet detection device according to claim 5, characterized in that: The sliding contact assembly (35) includes several groups of sliding contact rails (351) and integrated sliding contact heads (352). The several groups of sliding contact rails (351) are arranged on the frame (10). The integrated sliding contact heads (352) are arranged on the mounting seat (321) and the other end is inserted into the sliding contact rails (351).

7. A chip inkjet detection device according to claim 1, characterized in that: The device further comprises a loading robot (40) and a discharging robot (50), wherein the loading robot (40) and the discharging robot (50) are arranged on one side of the chip conveying mechanism (20), the loading robot (40) can place the chip to be tested on the movable tray (22), and the discharging robot (50) can take the chip after the test is completed from the movable tray (22).

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