Ultrasonic scanning jig

Abstract

The utility model provides an ultrasonic scanning jig, which relates to the technical field of ultrasonic scanning jigs, and comprises a supporting plate, the bottom end of the supporting plate is fixedly connected with a supporting rod, a plurality of positioning devices are arranged at the bottom end of the supporting plate, each positioning device comprises a rectangular box, the inner wall of each rectangular box is fixedly connected with a plurality of cylinders, and the cylinders are arranged in the rectangular boxes. The bottom end of the inner wall of the rectangular box is in threaded connection with a screw rod, the top end of the screw rod is rotationally connected with a rectangular plate, the top end of the rectangular plate is fixedly connected with a piston rod, and a plurality of round holes are formed in the outer surface of the supporting plate. When the chip is detected, the chip is placed at the round hole in the top end of the supporting plate, the rectangular plate and the piston rod are controlled to move by rotating the screw rod, and the chip is adsorbed at the round hole in the surface of the supporting plate, so that the situation that the chip is separated from the surface of the supporting plate and floats up and needs to be typeset on the surface of the supporting plate again can be avoided as much as possible; and the scanning efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic scanning jigs, in particular to an ultrasonic scanning jig. Background Art

[0002] After the chip is packaged, ultrasonic scanning is generally required to determine whether there are holes inside the plastic packaging material of each packaged chip; whether the connection between the baseband and the chip is layered; whether the bonding wire and the chip are well bonded, etc. During the scan, the chip is placed on a support plate jig and immersed in water. A plastic package is selected for scanning, and the feedback is displayed as a waveform on the computer.

[0003] When the chip is placed on an acrylic support plate and immersed in water, the chip may float off the surface of the support plate due to the buoyancy of the water, requiring the inspection operator to remove the chip from the water and rearrange it on the support plate, resulting in reduced ultrasonic scanning inspection efficiency. Utility Model Content

[0004] The utility model aims to solve the problem that when a chip is placed on an acrylic support plate and immersed in water, the chip may float off the surface of the support plate due to the buoyancy of the water, so that the detection operator needs to fish the chip out of the water and rearrange it on the support plate, resulting in a decrease in ultrasonic scanning detection efficiency. An ultrasonic scanning jig is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an ultrasonic scanning jig, comprising a support plate, the bottom end of the support plate is fixedly connected to a support rod, the bottom end of the support plate is provided with several positioning devices, the positioning device comprises a rectangular box, the top end of the rectangular box is fixedly connected to the bottom end of the support plate, the inner wall of the rectangular box is fixedly connected to several cylinders, the bottom end of the inner wall of the rectangular box is threadedly connected to a screw, the top end of the screw is rotatably connected to a rectangular plate, the two ends of the rectangular plate slide on both sides of the inner wall of the rectangular box, the top end of the rectangular plate is fixedly connected to a piston rod, the piston rod slides on the inner wall of the cylinder, the outer surface of the support plate is provided with several circular holes, the circular holes are connected to the interior of the cylinder, and the circular holes are linearly distributed on the outer surface of the support plate.

[0006] The effect achieved by the above components is: by setting a positioning device, when scanning the chip, several chips are placed at the circular holes on the surface of the support plate, and the back sides of the chips are respectively attached to the surface of the support plate and aligned with the position of the circular holes. After the placement is completed, the screw is turned to control the screw to rotate and move downward on the inner wall of the rectangular box, driving the rectangular plate to slide downward on the inner wall of the rectangular box, so that the piston rod at the top of the rectangular plate slides downward on the inner wall of the cylinder to generate suction, and the chip at the circular hole is adsorbed on the surface of the support plate, and then the support plate is immersed in water. By adsorbing the chip on the circular hole on the surface of the support plate, it can be avoided as much as possible that the chip will not float off the surface of the support plate, resulting in the need to layout the chip on the surface of the support plate again, affecting the scanning efficiency.

[0007] Preferably, a guide cylinder is fixedly connected to the top end of the inner wall of the circular hole, the outer surface of the guide cylinder is conical, and the diameter of the top end of the guide cylinder is smaller than the diameter of the bottom end.

[0008] The effect achieved by the above components is: by setting the tapered guide cylinder, the chip can be easily placed at the top of the guide cylinder to completely cover the through hole at the top of the guide cylinder, without causing the internal space of the cylinder to become smaller and affecting the adsorption force on the chip.

[0009] Preferably, a sealing ring is fixedly connected to the top of the inner wall of the circular hole, and the sealing ring is a rubber ring made of rubber material.

[0010] The effect achieved by the above components is: by setting a rubber sealing ring, the top of the inner wall of the circular hole can be further sealed, thereby avoiding air leakage as much as possible when the piston rod is pulled to move along the inner wall of the cylinder to adsorb the chip.

[0011] Preferably, a round block is fixedly connected to the bottom end of the screw, and a plurality of protrusions are provided on the circumference of the outer surface of the round block.

[0012] The effect achieved by the above components is that gripping the raised portion of the round block surface can increase the friction between the hand and the round block surface, and rotating the round block can more conveniently control the rotation of the screw without slipping the hand.

[0013] Preferably, positioning blocks are fixedly connected to both ends of the rectangular plate, and one side of the positioning block slides on one side of the inner wall of the rectangular box.

[0014] The effect achieved by the above components is: when the screw is rotated to control the rectangular plate to move up and down on the inner wall of the rectangular box, one side of the two positioning blocks will slide on both sides of the inner wall of the rectangular box respectively, further limiting the angle between the rectangular plate and the rectangular box, and the piston rod and the cylinder, and avoiding the angle deviation at both ends of the rectangular plate during the movement as much as possible.

[0015] Preferably, a plurality of sealing devices are provided at the top of the support plate, and the sealing devices include a baffle, and two sliding rods are fixedly connected to the bottom end of the baffle. A plurality of sliding grooves are opened at the top of the support plate, and the outer surfaces of the two sliding rods slide on the inner walls of the two sliding grooves respectively.

[0016] The effect achieved by the above components is: when the chip is placed on the surface of the support plate and the position of the chip is fixed by the positioning device, the baffle can be pushed to control the baffle to move through the two sliding rods at the bottom to adjust the horizontal position of the baffle to seal the circular hole where the chip is not placed, and to avoid as much as possible that water enters the circular hole where the chip is not placed after the support plate is placed in water and enters the interior of the rectangular box, affecting the normal movement of the rectangular plate.

[0017] Preferably, rectangular pieces are fixedly connected to both ends of the baffle, and the rectangular pieces are rubber pieces.

[0018] The effect achieved by the above components is that the two ends of the baffle can be further sealed by arranging the rectangular pieces of rubber material, thereby improving the sealing effect of the baffle on the circular hole.

[0019] Preferably, a plurality of convex strips are fixedly connected to the top end of the baffle, and the convex strips are linearly distributed on the top end of the rectangular plate.

[0020] The effect achieved by the above components is that the baffle can be more conveniently controlled to move and adjust its position by pushing the baffle with one's hand against the convex strip at the top end of the baffle.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] In the present invention, a positioning device is provided, and the chip is placed at the circular hole at the top of the support plate when the chip is tested. The rectangular plate and the piston rod are controlled to move by rotating the screw, and the chip is adsorbed at the circular hole on the surface of the support plate. This can avoid as much as possible the chip from detaching from the surface of the support plate and floating up, which would require the chip to be arranged on the surface of the support plate again, affecting the scanning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the support plate of the utility model;

[0025] Figure 3 It is a schematic diagram of the partial cross-section of the rectangular box of the utility model;

[0026] Figure 4 For this utility model Figure 3 A schematic diagram of a partially enlarged three-dimensional structure;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the baffle of the utility model.

[0028] Legend: 1. Support plate; 2. Positioning device; 3. Sealing device; 4. Support rod; 21. Round hole; 22. Rectangular box; 23. Cylinder; 24. Screw; 25. Rectangular plate; 26. Piston rod; 27. Guide cylinder; 28. Sealing ring; 29. ​​Round block; 210. Positioning block; 31. Slide groove; 32. Sliding rod; 33. Baffle; 34. Raised strip; 35. Rectangular sheet. DETAILED DESCRIPTION

[0029] Example 1, as Figure 1-4 As shown, an ultrasonic scanning jig includes a support plate 1, the bottom end of the support plate 1 is fixedly connected to a support rod 4, the bottom end of the support plate 1 is provided with a plurality of positioning devices 2, the positioning device 2 includes a rectangular box 22, the top of the rectangular box 22 is fixedly connected to the bottom end of the support plate 1, the inner wall of the rectangular box 22 is fixedly connected to a plurality of cylinders 23, the bottom end of the inner wall of the rectangular box 22 is threadedly connected to a screw 24, the top end of the screw 24 is rotatably connected to a rectangular plate 25, the two ends of the rectangular plate 25 slide on both sides of the inner wall of the rectangular box 22, the top of the rectangular plate 25 is fixedly connected to a piston rod 26, the piston rod 26 slides on the inner wall of the cylinder 23, the outer surface of the support plate 1 is provided with a plurality of circular holes 21, the circular holes 21 are connected to the inside of the cylinder 23, and the circular holes 21 are linearly distributed on the outer surface of the support plate 1. A positioning device 2 is installed. When scanning the chip, several chips are placed at the circular holes 21 on the surface of the support plate 1, and the back sides of the chips are respectively attached to the surface of the support plate 1 and aligned with the positions of the circular holes 21. After the placement is completed, the screw 24 is turned to control the screw 24 to rotate and move downward on the inner wall of the rectangular box 22, driving the rectangular plate 25 to slide downward on the inner wall of the rectangular box 22, so that the piston rod 26 at the top of the rectangular plate 25 slides downward on the inner wall of the cylinder 23 to generate suction, and the chip at the circular hole 21 is adsorbed on the surface of the support plate 1. Then the support plate 1 is immersed in water. By adsorbing the chip on the circular hole 21 on the surface of the support plate 1, it is possible to avoid the chip from floating off the surface of the support plate 1 as much as possible, resulting in the need to layout the chip on the surface of the support plate 1 again, affecting the scanning efficiency.

[0030] Reference Figure 2-4As shown, in this embodiment: the top end of the inner wall of the circular hole 21 is fixedly connected with a guide cylinder 27, the outer surface shape of the guide cylinder 27 is conical, and the top diameter of the guide cylinder 27 is smaller than the diameter of the bottom end. By setting the conical guide cylinder 27, it is easy to completely cover the through hole at the top end of the guide cylinder 27 when the chip is placed at the top end of the guide cylinder 27, and it will not cause the internal space of the cylinder 23 to become smaller, affecting the adsorption force on the chip. The top end of the inner wall of the circular hole 21 is fixedly connected with a sealing ring 28, and the sealing ring 28 is a rubber ring. By setting the rubber sealing ring 28, the top end of the inner wall of the circular hole 21 can be further sealed, and air leakage can be avoided as much as possible when the piston rod 26 is pulled to move the inner wall of the cylinder 23 to adsorb the chip.

[0031] Reference Figure 2-4 As shown, in this embodiment: the bottom end of the screw 24 is fixedly connected with a round block 29, and the outer surface circumference of the round block 29 is provided with a plurality of protrusions. Holding the protrusions on the surface of the round block 29 can increase the friction when the hand contacts the surface of the round block 29. Rotating the round block 29 can more conveniently control the rotation of the screw 24 and is not easy to slip. The two ends of the rectangular plate 25 are fixedly connected with positioning blocks 210, and one side of the positioning block 210 slides on one side of the inner wall of the rectangular box 22. When the screw 24 is rotated to control the rectangular plate 25 to move up and down on the inner wall of the rectangular box 22, one side of the two positioning blocks 210 will slide on both sides of the inner wall of the rectangular box 22 respectively, further limiting the angles between the rectangular plate 25 and the rectangular box 22, and the piston rod 26 and the cylinder 23, and avoiding the angles of the two ends of the rectangular plate 25 from being skewed as much as possible during the movement of the rectangular plate 25.

[0032] Reference Figure 1-5 As shown, in this embodiment: a plurality of sealing devices 3 are provided at the top of the support plate 1, and the sealing devices 3 include a baffle 33, and the bottom end of the baffle 33 is fixedly connected to two sliding rods 32, and a plurality of slide grooves 31 are opened at the top of the support plate 1, and the outer surfaces of the two sliding rods 32 slide on the inner walls of the two slide grooves 31 respectively. When the chip is placed on the surface of the support plate 1 and the position of the chip is fixed by the positioning device 2, the baffle 33 can be pushed to control the baffle 33 to move through the two sliding rods 32 at the bottom to adjust the horizontal position of the baffle 33 to seal the circular hole 21 where the chip is not placed, so as to avoid water from entering the rectangular box 22 after the support plate 1 is placed in water, thereby affecting the normal movement of the rectangular plate 25.

[0033] Reference Figure 2-5As shown, in this embodiment: rectangular pieces 35 are fixedly connected at both ends of the baffle 33, and the rectangular pieces 35 are made of rubber material. By providing the rectangular pieces 35 made of rubber material, the two ends of the baffle 33 can be further sealed, thereby improving the sealing effect of the baffle 33 on the circular hole 21. A plurality of ridges 34 are fixedly connected at the top of the baffle 33, and the ridges 34 are linearly distributed at the top of the rectangular plate 25. By pressing the ridges 34 at the top of the baffle 33 with your hand to push the baffle 33, the movement of the baffle 33 can be more conveniently controlled to adjust the position of the baffle 33.

[0034] Working principle: When using ultrasonic scanning equipment to detect chips, several chips are placed at the circular holes 21 on the surface of the support plate 1, and the back sides of the chips are respectively attached to the surface of the support plate 1 and aligned with the positions of the circular holes 21. After the chips are placed, the baffle 33 is pushed to slide on the inner wall of the slide groove 31 through the two sliding rods 32 at the bottom to adjust the horizontal position of the baffle 33, and the top of the circular holes 21 in each column where no chips are placed is blocked by the baffle 33. Then, the outer surface of the round block 29 is held and the screw 24 is rotated to control the screw 24 to rotate and move downward on the inner wall of the rectangular box 22, driving the rectangular plate 25 to slide downward on the inner wall of the rectangular box 22, so that the piston rod 26 at the top of the rectangular plate 25 slides downward on the inner wall of the cylinder 23 to generate suction, and the chip at the circular hole 21 is adsorbed on the surface of the support plate 1, and the position of the chip on the surface of the support plate 1 is fixed. Finally, the support plate 1 is immersed in water as a whole, and the chip is detected by ultrasonic scanning equipment.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An ultrasonic scanning jig, comprising a support plate (1), characterized in that: The bottom end of the support plate (1) is fixedly connected to a support rod (4), and the bottom end of the support plate (1) is provided with a plurality of positioning devices (2), and the positioning devices (2) include a rectangular box (22), the top end of the rectangular box (22) is fixedly connected to the bottom end of the support plate (1), the inner wall of the rectangular box (22) is fixedly connected to a plurality of cylinders (23), and the bottom end of the inner wall of the rectangular box (22) is threadedly connected to a screw (24), and the top end of the screw (24) is rotated. The support plate (1) is movably connected to a rectangular plate (25), the two ends of the rectangular plate (25) slide on both sides of the inner wall of the rectangular box (22), the top end of the rectangular plate (25) is fixedly connected to a piston rod (26), the piston rod (26) slides on the inner wall of the cylinder (23), and the outer surface of the support plate (1) is provided with a plurality of circular holes (21), the circular holes (21) are connected to the interior of the cylinder (23), and the circular holes (21) are linearly distributed on the outer surface of the support plate (1).

2. The ultrasonic scanning jig according to claim 1, characterized in that: A guide cylinder (27) is fixedly connected to the top of the inner wall of the circular hole (21). The outer surface of the guide cylinder (27) is conical, and the top diameter of the guide cylinder (27) is smaller than the bottom diameter.

3. The ultrasonic scanning jig according to claim 2, characterized in that: A sealing ring (28) is fixedly connected to the top end of the inner wall of the circular hole (21), and the sealing ring (28) is a rubber ring made of rubber material.

4. The ultrasonic scanning jig according to claim 3, characterized in that: The bottom end of the screw rod (24) is fixedly connected with a round block (29), and the outer surface circumference of the round block (29) is provided with a plurality of protrusions.

5. The ultrasonic scanning jig according to claim 4, characterized in that: Positioning blocks (210) are fixedly connected to both ends of the rectangular plate (25), and one side of the positioning block (210) slides on one side of the inner wall of the rectangular box (22).

6. The ultrasonic scanning jig according to claim 5, characterized in that: The top of the support plate (1) is provided with a plurality of sealing devices (3), the sealing devices (3) include a baffle (33), the bottom end of the baffle (33) is fixedly connected to two sliding rods (32), the top of the support plate (1) is provided with a plurality of sliding grooves (31), and the outer surfaces of the two sliding rods (32) slide on the inner walls of the two sliding grooves (31) respectively.

7. The ultrasonic scanning jig according to claim 6, characterized in that: Rectangular pieces (35) are fixedly connected to both ends of the baffle (33), and the rectangular pieces (35) are rubber pieces made of rubber material.

8. The ultrasonic scanning jig according to claim 6, characterized in that: The top end of the baffle (33) is fixedly connected with a plurality of convex strips (34), and the convex strips (34) are linearly distributed on the top end of the rectangular plate (25).

Images