Automatic testing device for chip testing

Abstract

The invention relates to the technical field of chip testing, in particular to an automatic testing device for chip testing, which comprises a conveying track, a moving seat is slidably mounted on the conveying track, and a placing plate for placing chips is fixed at the top of the moving seat; the moving seat is fixed on the conveying rail, the driving unit is fixed on the moving seat, the driving unit is in contact with the conveying rail, the abutting column is installed on the placing plate, a moving cavity is formed in one side of the placing plate, an abutting assembly is installed in the moving cavity, and an alignment assembly used for chip positioning is installed on the placing plate. According to the chip detection device, chips on the placing plate can be positioned, and when the driving unit moves on the conveying track and the chips are conveyed to the front of the detection part, the chips can be in contact with the contact part, so that the chips are subjected to simulated vibration, part of infirm welding areas are broken, the low-quality chips are prevented from flowing into the market, and the detection accuracy of the chips is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chip testing, and in particular to an automatic testing device for chip testing. Background Art

[0002] IC chips integrate a large number of microelectronic components into a chip. Memory chips are IC chips with storage functions (such as memory chips, also called "memory particles"). Memory chips are the core components of storage devices, and the quality of memory chips can be directly related to the performance of storage devices. However, chips have a certain defective rate, so memory chips need to be strictly tested before they are used.

[0003] China's authorized patent document CN202310428668.5 discloses a chip testing device, in which test data of each target pin on the chip to be tested is obtained through a probe measurement structure, so as to obtain a test result of the chip to be tested based on the test data of each target pin on the chip to be tested, so as to select defective chips. However, some chips have cold solder joints at the pin welding points, and the solder joints are not firm. Although the chips can pass the inspection, a slight collision in the later stage will cause the solder joints to break, resulting in some chips of poor quality entering the market, affecting the product reputation. Summary of the invention

[0004] The object of the present invention is to provide an automatic testing device for chip testing, so as to solve the problem in the above background technology that it is difficult to detect chips with loose soldering during testing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic testing device for chip testing, comprising a conveying track, a moving seat is slidably installed on the conveying track, and a placing plate for chip placement is fixed on the top of the moving seat; and a driving unit fixed on the moving seat, the driving unit is in contact with the conveying track, and the moving seat is driven to move along the conveying track through the operation of the driving unit; and an abutting column installed on the placing plate, a moving cavity is opened on one side of the placing plate, and an abutting component is installed in the moving cavity, and an alignment component for chip positioning is installed on the placing plate; and a contact portion, the abutting component contacts and moves with the contact portion to realize simulated vibration of the chip.

[0006] Preferably, the driving unit includes a driving wheel rotatably mounted on a moving seat, the driving wheel is in contact with both sides of the conveying track, a driving motor is fixed on the moving seat, and an output end of the driving motor is fixed to an inner shaft of one of the driving wheels through a coupling.

[0007] Preferably, the abutting assembly includes an abutting rod plugged into the placement plate, one end of the abutting rod slides through the movable cavity, and an abutting plate slidably connected to the movable cavity is fixed to the outer end of the abutting rod, abutting parts are installed at both ends of the abutting plate, and a fitting part that fits with the contact part is fixed to one end of the abutting rod away from the abutting plate.

[0008] Preferably, the fitting comprises a connecting plate fixed to the outer end of the abutting rod, a connecting rod is fixed to the bottom of the connecting plate, and a contact wheel is rotatably mounted on the outer end of the connecting rod, an abutting block is fixed on the placing plate, and a tension spring is fixed between the abutting block and the connecting plate.

[0009] Preferably, the contact portion comprises a straight plate and two curved plates, the two curved plates and both ends of the straight plate are fixed, a plurality of right-angle trapezoidal frame plates are fixed on the straight plate, and inclined plates are fixed to the outer ends of the two curved plates.

[0010] Preferably, the alignment component includes an alignment motor fixed to the placing plate through a motor frame, a screw rod is fixed to the output end of the alignment motor through a coupling, the outer end of the screw rod is fixed to the bottom of the placing plate through a bearing seat, and an alignment plate is threadedly sleeved on the outer side of the screw rod, the alignment plate is fitted with the bottom of the placing plate, a movable opening is opened on the placing plate, and alignment rods slidably connected to the movable opening are fixed at both ends of the alignment plate.

[0011] Preferably, notches are provided on both sides of the conveying track, and the two driving wheels are fitted with inner walls of the notches. The cross-sectional shape of the movable seat is U-shaped, and the bottoms of both ends of the movable seat are slidably engaged with the bottom of the conveying track.

[0012] Preferably, a side panel is fixed to the bottom of the placement plate at a position corresponding to the connecting plate, and the side panel is in contact with the outer wall of the connecting plate.

[0013] Preferably, the placement plate is provided with a plurality of insertion holes, and the abutting columns are threadedly plugged into the insertion holes, and the abutting columns are made of rubber material.

[0014] Preferably, a counterweight is fixed on the movable seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can position the chip on the display plate through the designed offset components and alignment components. When the chip is moved on the conveying track through the driving unit, it will contact the contact part before being conveyed to the detection part, thereby simulating the vibration of the chip and breaking some areas with loose welding, thereby preventing low-quality chips from entering the market and improving the accuracy of chip detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the positional relationship between the conveying track and the contact part of the present invention; Figure 3 It is a schematic diagram of the connection between the bonding piece and the contact part of the present invention; Figure 4 This is a side view of the mobile seat of the present invention docking with the conveying track; Figure 5 This is a schematic diagram of the bottom structure of the placement board of the present invention; Figure 6 It is a schematic diagram of the butt joint structure of the connecting plate, the abutting block and the tension spring of the present invention; Figure 7 It is a schematic diagram of the surface structure of the placement board of the present invention; Figure 8 It is a schematic diagram of the placement plate and the abutting rod of the present invention in a disengaged state.

[0017] In the figure: 1. conveying track; 2. moving seat; 3. placing plate; 4. driving unit; 5. abutting column; 6. moving cavity; 7. abutting assembly; 8. alignment assembly; 9. contact part; 10. driving wheel; 11. driving motor; 12. abutting rod; 13. abutting plate; 14. fitting part; 15. connecting plate; 16. connecting rod; 17. contact wheel; 18. abutting block; 19. tension spring; 20. straight plate; 21. arc plate; 22. right-angle trapezoidal frame plate; 23. inclined plate; 24. alignment motor; 25. screw rod; 26. alignment plate; 27. moving mouth; 28. alignment rod; 29. ​​notch; 30. side plate; 31. counterweight block; 32. abutting part. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1 - Figure 3, an automatic testing device for chip testing shown in the figure comprises a conveying track 1, a moving seat 2 is slidably mounted on the conveying track 1, a placing plate 3 for placing chips is fixed on the top of the moving seat 2; and a driving unit 4 fixed on the moving seat 2, the driving unit 4 is in contact with the conveying track 1, and the moving seat 2 is driven to move along the conveying track 1 through the operation of the driving unit 4; and an abutting column 5 installed on the placing plate 3, a moving cavity 6 is opened on one side of the placing plate 3, an abutting component 7 is installed in the moving cavity 6, and an alignment component 8 for chip positioning is installed on the placing plate 3; and a contact portion 9, the abutting component 7 moves in contact with the contact portion 9 to realize simulated vibration of the chip; In this solution, the conveying track 1 is designed to be a circular track. The moving seat 2 is driven by the driving unit 4 to drive the placement plate 3 to move circularly on the conveying track 1, thereby driving the chip to move circularly. When the chip is moved to the detection area, the contact part 9 will first be used to simulate the vibration of the chip, so that some areas with loose welding will vibrate and break, so that the loose welding areas can be detected in subsequent detection, thereby improving the detection accuracy.

[0020] It should be noted that the designed offset component 7 and alignment component 8 can realize the positioning and alignment of the chip, so that during subsequent inspection, the chip can be located at a specified position, which is convenient for subsequent inspection.

[0021] It should also be noted that a number of sockets are provided on the placement plate 3, and the abutment columns 5 are threadedly plugged into the sockets. The abutment columns 5 are made of rubber material, which can prevent the chip from being squeezed and damaged. The abutment columns 5 are distributed corresponding to the abutment components 7 and the alignment components 8, respectively, and cooperate with the abutment components 7 and the alignment components 8 to achieve the abutment positioning of the chip.

[0022] For further information, see Figure 4 The driving unit 4 includes a driving wheel 10 rotatably mounted on the moving seat 2, the driving wheel 10 is in contact with both sides of the conveying track 1, a driving motor 11 is fixed on the moving seat 2, and the output end of the driving motor 11 is fixed to the inner shaft of one of the driving wheels 10 through a coupling; It should be noted that: the driving motor 11 drives the driving wheel 10 to rotate, and the driving wheel 10 fits against the outer wall of the conveying track 1 , thereby driving the moving seat 2 to move along the conveying track 1 .

[0023] It should also be noted that, in order to ensure the stability of the movement of the moving base 2 driven by the driving wheel 10, the driving wheel 10 is designed to be made of rubber material, which can increase the friction and drive more stably.

[0024] For further information, see Figure 6 - Figure 8The abutting assembly 7 includes an abutting rod 12 plugged into the placing plate 3, one end of the abutting rod 12 slides through the moving cavity 6, an abutting plate 13 slidably connected to the moving cavity 6 is fixed to the outer end of the abutting rod 12, and abutting portions 32 are installed at both ends of the abutting plate 13. A fitting member 14 that fits with the contact portion 9 is fixed to one end of the abutting rod 12 away from the abutting plate 13; The fitting member 14 includes a connecting plate 15 fixed to the outer end of the abutting rod 12, a connecting rod 16 is fixed to the bottom of the connecting plate 15, a contact wheel 17 is rotatably mounted on the outer end of the connecting rod 16, an abutting block 18 is fixed on the placement plate 3, and a tension spring 19 is fixed between the abutting block 18 and the connecting plate 15; The principle of the offset component 7 for offset positioning of the chip: through the action of the tension spring 19, the connecting plate 15 moves toward the offset block 18, so that the offset rod 12 and the offset plate 13 can move synchronously in the movable cavity 6, and drive the offset part 32 to move toward the offset column 5, so as to achieve the offset of the two ends of the chip, and cooperate with the alignment component 8 to realize the positioning of the chip.

[0025] Also, see Figure 4 - Figure 8 The contact portion 9 includes a straight plate 20 and two arc plates 21 . The two arc plates 21 are fixed to both ends of the straight plate 20 . A plurality of right-angle trapezoidal frame plates 22 are fixed on the straight plate 20 . The outer ends of the two arc plates 21 are fixed with inclined plates 23 .

[0026] The principle of simulating the vibration of the chip is as follows: the driving unit 4 drives the moving seat 2 to move along the conveying track 1, so that the contact wheel 17 moves along the straight plate 20. When passing through the right-angled trapezoidal frame plate 22, it will first contact the right-angled side. Under the action of the tension spring 19, the contact wheel 17 directly enters the right-angled trapezoidal frame plate 22, and as the moving seat 2 continues to move along the conveying track 1, the contact wheel 17 begins to contact along the hypotenuse of the right-angled trapezoidal frame plate 22 and fits with the outer wall of the straight plate 20 again. Each time it passes through the right-angled trapezoidal frame plate 22, the tension spring 19 drives the connecting plate 15 to move toward the abutting block 18, so that the abutting rod 12 can drive the abutting part 32 to collide with the chip, so that the chip simulates the vibration state, which can effectively vibrate and break some loosely welded solder joints, facilitating subsequent detection.

[0027] In this solution, when the movable seat 2 continues to move to the other side along the conveying track 1, at this time, the contact wheel 17 passes through the arc plate 21 and moves away along the inclined plate 23. At this time, the offset component 7 starts to offset the chip, and at the same time, the alignment component 8 also starts to offset and align the chip to position the chip, which is convenient for the inspection department to detect the chip.

[0028] For further information, see Figure 5 - Figure 8The alignment assembly 8 includes an alignment motor 24 fixed to the placement plate 3 through a motor frame, a screw rod 25 is fixed to the output end of the alignment motor 24 through a coupling, the outer end of the screw rod 25 is fixed to the bottom of the placement plate 3 through a bearing seat, an alignment plate 26 is threadedly sleeved on the outer side of the screw rod 25, the alignment plate 26 is fitted to the bottom of the placement plate 3, a moving opening 27 is opened on the placement plate 3, and alignment rods 28 slidably connected to the moving opening 27 are fixed at both ends of the alignment plate 26; The operating principle of the alignment component 8 is: driven by the alignment motor 24 to drive the lead screw 25 to rotate, so that the alignment plate 26 starts to move, and the alignment rod 28 on the alignment plate 26 is moved toward the chip, cooperating with the abutment column 5 to realize the alignment and positioning of the chip, which is convenient for subsequent chip detection operations.

[0029] In this solution, the process of testing the chip includes the following steps: In the first step, the chips are clamped onto several placement plates 3 in sequence by a robot arm, at which time the fitting member 14 on the abutting component 7 is in contact with the straight plate 20, and the alignment component 8 is in an open state; In the second step, the driving unit 4 drives the moving seat 2 to move along the conveying track 1, and the bonding piece 14 passes through a plurality of right-angle trapezoidal frame plates 22 in sequence, and simulates the vibration of the chip to vibrate and break some of the weakly welded areas; In the third step, the moving seat 2 continues to move until the fitting member 14 is separated from the arc plate 21, and then the alignment component 8 aligns and positions the chip, and cooperates with the detection unit to detect the chip; In the fourth step, after the detection is completed, the movable seat 2 moves to another arc-shaped plate 21. At this time, the abutting component 7 and the aligning component 8 are in the open state. The detected chips are clamped and taken away by the robot arm, and the chips are classified according to the detection results.

[0030] It should be noted that the grabbing of the chip by the robot arm and the detection of the chip by the detection unit in this solution are both existing technologies.

[0031] Example 2: Please refer to Figure 4 This embodiment further explains the first embodiment, and the difference lies in that the shapes of the conveying track 1 and the moving seat 2 are optimized, so that the moving seat 2 can move on the conveying track 1 more stably.

[0032] Specifically, notches 29 are provided on both sides of the conveying track 1, and the two driving wheels 10 fit in the inner walls of the notches 29. The cross-sectional shape of the moving seat 2 is U-shaped, and the bottoms of both ends of the moving seat 2 are slidably engaged with the bottom of the conveying track 1. In this solution, the notch 29 fits with the driving wheel 10, so that the driving wheel 10 rotates stably. At the same time, the bottom of the U-shaped moving seat 2 is buckled with the bottom of the conveying track 1, so that the moving seat 2 will not be skewed during the movement.

[0033] It should also be noted that, in order to improve the stability of the moving seat 2 during the driving process, a counterweight block 31 is fixed on the moving seat 2 .

[0034] Example 3: Please refer to Figure 5 This embodiment further illustrates other embodiments, and the difference lies in that a side plate 30 is added so that the connecting plate 15 does not shake when moving.

[0035] Specifically, a side plate 30 is fixed at the bottom of the placement plate 3 at a position corresponding to the connecting plate 15 , and the side plate 30 is in contact with the outer wall of the connecting plate 15 . The side plate 30 can limit the outer side of the connecting plate 15 to prevent it from tilting and affecting the movement of the opposing rod 12 .

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic testing device for chip testing, characterized in that: include: A conveying track (1), a moving seat (2) being slidably mounted on the conveying track (1), a placement plate (3) for placing chips being fixed on the top of the moving seat (2); and, a driving unit (4) fixed on the moving seat (2), the driving unit (4) being in contact with the conveying track (1), and the moving seat (2) is driven to move along the conveying track (1) through the operation of the driving unit (4); and an abutting column (5) mounted on a placement plate (3); a movable cavity (6) is provided on one side of the placement plate (3); an abutting component (7) is installed in the movable cavity (6); an alignment component (8) for chip positioning is installed on the placement plate (3); and, The contact portion (9) is configured such that the abutting component (7) moves in contact with the contact portion (9) to achieve simulated vibration of the chip.

2. The automatic testing device for chip testing according to claim 1, characterized in that: The driving unit (4) comprises a driving wheel (10) rotatably mounted on a moving seat (2), the driving wheel (10) being in contact with two sides of a conveying track (1), a driving motor (11) being fixed on the moving seat (2), and an output end of the driving motor (11) being fixed to an inner shaft of one of the driving wheels (10) via a coupling.

3. The automatic testing device for chip testing according to claim 1, characterized in that: The abutting assembly (7) comprises an abutting rod (12) plugged into the placing plate (3), one end of the abutting rod (12) slidingly penetrates the movable cavity (6), and an abutting plate (13) slidably connected to the movable cavity (6) is fixed to the outer end of the abutting rod (12), and abutting portions (32) are installed at both ends of the abutting plate (13), and a fitting member (14) fitting with the contact portion (9) is fixed to one end of the abutting rod (12) away from the abutting plate (13).

4. The automatic testing device for chip testing according to claim 3, characterized in that: The fitting member (14) comprises a connecting plate (15) fixed to the outer end of the abutting rod (12), a connecting rod (16) being fixed to the bottom of the connecting plate (15), and a contact wheel (17) being rotatably mounted on the outer end of the connecting rod (16), an abutting block (18) being fixed on the placing plate (3), and a tension spring (19) being fixed between the abutting block (18) and the connecting plate (15).

5. The automatic testing device for chip testing according to claim 1, characterized in that: The contact portion (9) comprises a straight plate (20) and two curved plates (21), the two curved plates (21) and the straight plate (20) are fixed at both ends, a plurality of right-angled trapezoidal frame plates (22) are fixed on the straight plate (20), and inclined plates (23) are fixed at the outer ends of the two curved plates (21).

6. The automatic testing device for chip testing according to claim 1, characterized in that: The alignment component (8) comprises an alignment motor (24) fixed to the placement plate (3) via a motor frame, a screw rod (25) being fixed to the output end of the alignment motor (24) via a coupling, the outer end of the screw rod (25) being fixed to the bottom of the placement plate (3) via a bearing seat, and an alignment plate (26) being threadedly sleeved on the outer side of the screw rod (25), the alignment plate (26) being fitted to the bottom of the placement plate (3), a moving opening (27) being provided on the placement plate (3), and alignment rods (28) being slidably connected to the moving opening (27) being fixed at both ends of the alignment plate (26).

7. The automatic testing device for chip testing according to claim 1, characterized in that: Notches (29) are provided on both sides of the conveying track (1), and the two driving wheels (10) are in contact with the inner walls of the notches (29). The cross-sectional shape of the movable seat (2) is U-shaped, and the bottoms of both ends of the movable seat (2) are slidably engaged with the bottom of the conveying track (1).

8. The automatic testing device for chip testing according to claim 4, characterized in that: A side plate (30) is fixed to the bottom of the placement plate (3) at a position corresponding to the connecting plate (15), and the side plate (30) is in contact with the outer wall of the connecting plate (15).

9. The automatic testing device for chip testing according to claim 1, characterized in that: The placement plate (3) is provided with a plurality of insertion holes, a plurality of abutting columns (5) are provided, and the abutting columns (5) are threadedly plugged into the insertion holes, and the abutting columns (5) are made of rubber material.

10. The automatic testing device for chip testing according to claim 1, characterized in that: A counterweight block (31) is fixed on the movable seat (2).

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