Chip performance detection device

Abstract

The invention relates to the technical field of chip detection, and discloses a chip performance detection device, which comprises a box body, and a conveying device, a detection mechanism and a transfer mechanism are arranged in the box body, the transfer mechanism comprises a grooved wheel, a driving plate and a driving motor, a first shaft is fixedly connected to the bottom of the driving plate, the bottom of the first shaft is connected with the bottom of the box body through a bearing, a driven belt wheel is fixedly connected to the first shaft, a driving belt wheel is arranged at the output end of the driving motor, and the driving belt wheel and the driven belt wheel are in transmission connection through a belt; the four working positions are designed and comprise the clamping working position, the front face detection working position, the back face detection working position and the releasing working position, the transfer mechanism drives the clamping jaw to each working position through intermittent rotation, pause operation is achieved, accurate detection is facilitated, and the working efficiency is improved. The multi-station design enables the device to efficiently complete the detection of the front and back surfaces of the chip in the same detection period, and greatly shortens the detection time.

Description

Technical Field

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

[0002] In the large-scale development and production of semiconductor chips, the morphology detection of chip pins is one of the key links to ensure chip performance and quality. The quality of the pin morphology directly affects the reliability of the chip's electrical connection, especially in application scenarios such as high-frequency signal transmission, complex packaging, and multi-layer circuit board assembly. Its performance is particularly important. Defects in pin morphology may lead to problems such as poor electrical contact, signal attenuation or short circuit, and in severe cases, may cause the entire device to fail.

[0003] At present, pin morphology detection mainly includes parameters such as pin height, spacing, flatness, curvature and integrity. However, in some tests, it is required to test both the front and back sides of the chip and to perform continuous testing on batches of chips. Therefore, a chip performance testing device is proposed. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: A chip performance detection device, comprising: a box, in which a conveying device, a detection mechanism and a transfer mechanism are arranged, wherein;

[0005] The transfer mechanism comprises a groove wheel, a dial and a driving motor, the bottom of the dial is fixedly connected to a first shaft, the bottom of the first shaft is connected to the bottom of the box body through a bearing, the first shaft is fixedly connected to a driven pulley, the output end of the driving motor is provided with a driving pulley, the driving pulley and the driven pulley are connected through a belt transmission, the center of the groove wheel is fixedly connected to a second shaft, the bottom of the second shaft is connected to the bottom of the box body through a bearing, the top of the second shaft is fixedly connected to a star-shaped connector, the star-shaped connector has four branches, the vertical midlines of the four branches correspond to the grooves of the groove wheel one by one, the distal ends of the four branches are rotatably connected to a clamping mechanism, the transfer mechanism can drive the clamping mechanism to intermittently pause at four working positions in sequence, and the four working positions include a front detection working position and a back detection working position;

[0006] The clamping mechanism comprises a rotating rod, one end of which is rotatably connected to a branch, a flip gear is fixedly connected to the rotating rod in the circumferential direction, a bracket is provided on the inner wall of the box body, an arc-shaped rack is provided on the top of the bracket, the flip gear is meshed and connected with the arc-shaped rack, the arc-shaped rack coincides with the vertical center line of the back detection working position, and the flip gear moves to the center line of the arc-shaped rack to just flip the clamping mechanism 180 degrees;

[0007] The detection mechanism comprises a first shooting probe and a second shooting probe, wherein the first shooting probe and the second shooting probe are located above a front detection workstation and a back detection workstation.

[0008] Furthermore, the work station also includes a clamping work station and a releasing work station, and the conveying device includes a first transmission belt and a second transmission belt, and the first transmission belt and the second transmission belt are matched with the clamping work station and the releasing work station respectively.

[0009] Furthermore, a groove is provided at one end of the clamping mechanism, and connecting tubes are respectively provided on both sides of the groove. The connecting tubes have an inner cavity with a rectangular cross-section and a through cavity. Clamping claws are respectively provided on both sides of the two connecting tubes. A sliding rod is provided on the two clamping claws. The cross-section of the sliding rod is the same as the cross-section of the inner cavity of the connecting tube. The sliding rod can be slidably connected to the inner cavity of the connecting tube. A connecting rod is provided between the two sliding rods. Both ends of the connecting rod have threads respectively and can be connected to the two sliding rods through threaded transmission. The threads at both ends of the connecting rod are in opposite directions. An adjusting wheel is sleeved on the middle part of the connecting rod, and the adjusting wheel can have frictional contact with the surfaces of the first transmission belt and the second transmission belt.

[0010] Furthermore, the first transmission belt and the second transmission belt are both provided with a transmission belt, and the side wall of the adjusting wheel is provided with anti-skid ridges, and the transmission belt can drive the adjusting wheel to rotate through the anti-skid ridges.

[0011] Furthermore, a slope is provided on the clamping jaw.

[0012] Furthermore, there are two slopes, and a protection pad is arranged between the two slopes, and the protection pad is made of silicone material.

[0013] Furthermore, the first transmission belt and the second transmission belt are at the same level, and the bottom of the clamp is 0.5-1 mm higher than the surface of the first transmission belt.

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

[0015] 1. The device is designed with four working positions, including the clamping position, the front detection position, the back detection position and the release position. The transfer mechanism drives the clamp to each working position through intermittent rotation and realizes the pause operation to facilitate accurate detection. The multi-station design enables the device to efficiently complete the detection of the front and back sides of the chip in the same detection cycle, greatly shortening the detection time.

[0016] 2. The precise 180° flipping of the chip is achieved through the meshing design of the flipping gear and the arc-shaped rack. When the flipping gear moves to the center line of the arc-shaped rack, it can complete the accurate flipping operation, so that the pins on the back of the chip face upward, which is convenient for the second shooting probe to complete the back-side detection. In addition, when leaving the back-side detection work position, the flipping gear and the arc-shaped rack mesh again to flip the chip to the front-side facing state, ensuring that the chip enters the release work position in the correct direction.

[0017] 3. Through the friction transmission between the adjusting wheel and the transmission belt, in conjunction with the sliding rod and connecting rod of the threaded structure, the synchronous movement of the clamping jaws during the clamping and releasing process is realized. The design of the thread direction enables the sliding rod to quickly and smoothly approach or move away, ensuring that the chip is stable and efficient during the clamping process. During the release process, the clamping jaws move away synchronously, so that the chip can be accurately released onto the conveyor belt without unnecessary operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a front view structural schematic diagram of the present invention as a whole;

[0020] Figure 2 It is a schematic diagram of the top view of the groove wheel and the dial part of the present invention;

[0021] Figure 3 It is a schematic diagram of the top view of the clamping mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of a top view of a section structure of the clamping mechanism of the present invention;

[0023] Figure 5 It is a side view structural schematic diagram of the clamping mechanism part of the present invention;

[0024] In the figure: 1. box body; 2. transfer mechanism; 201. groove wheel; 202. dial; 203. first axis; 204. driven pulley; 205. drive motor; 206. driving pulley; 207. belt; 208. second axis; 209. star-shaped connector; 3. clamping mechanism; 301. rotating rod; 302. flip gear; 303. clamping claw; 304. connecting pipe; 305. sliding rod; 306. connecting rod; 307. adjusting wheel; 308. ramp; 309. protection pad; 4. bracket; 5. arc rack; 6. first shooting probe; 7. second shooting probe; 8. first transmission belt; 9. second transmission belt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Depend on Figure 1-5 The present invention provides a chip performance detection device, comprising:

[0027] Box 1, in which a conveying device, a detection mechanism and a transfer mechanism 2 are arranged, wherein;

[0028] The transfer mechanism 2 includes a groove wheel 201, a dial 202 and a driving motor 205. The bottom of the dial 202 is fixedly connected to a first shaft 203, and the bottom of the first shaft 203 is connected to the bottom of the box body 1 through a bearing. A driven pulley 204 is fixedly connected to the first shaft 203. The output end of the driving motor 205 is provided with a driving pulley 206. The driving pulley 206 and the driven pulley 204 are connected through a belt 207. The center of the groove wheel 201 is fixedly connected to a second shaft 208. The bottom of the second shaft 208 is connected to the bottom of the box body 1 through a bearing. When working, the driving motor 205 is connected through the belt. The belt 207 transmits the action to the dial 202, and the dial 202 is rotated into and out of the groove of the groove wheel 201 through the lever, thereby driving the groove wheel 201 to rotate intermittently. A star-shaped connector 209 is fixedly connected to the top of the second shaft 208. The star-shaped connector 209 has four branches, and the vertical midlines of the four branches correspond to the grooves of the groove wheel 201 one by one. The distal ends of the four branches are rotatably connected to the clamping mechanism 3. The transfer mechanism 2 can drive the clamping mechanism 3 to pause intermittently at four working positions in sequence. The four working positions include a front detection working position and a back detection working position.

[0029] The clamping mechanism 3 includes a rotating rod 301, one end of which is rotatably connected to the branch, and a flip gear 302 is fixedly connected to the rotating rod 301 in the circumferential direction. A bracket 4 is provided on the inner wall of the box body 1, and an arc-shaped rack 5 is provided on the top of the bracket 4. The flip gear 302 is meshed and connected with the arc-shaped rack 5. The arc-shaped rack 5 coincides with the vertical center line of the back detection work position. The flip gear 302 moves to the center line of the arc-shaped rack 5, which can just flip the clamping mechanism 3 180 degrees.

[0030] The detection mechanism includes a first shooting probe 6 and a second shooting probe 7. The first shooting probe 6 and the second shooting probe 7 are located above the front detection workstation and the back detection workstation.

[0031] The working positions further include a clamping working position and a releasing working position, and the conveying device includes a first transmission belt 8 and a second transmission belt 9, and the first transmission belt 8 and the second transmission belt 9 are matched with the clamping working position and the releasing working position respectively.

[0032] A groove is provided at one end of the clamping mechanism 3, and connecting pipes 304 are respectively provided on both sides of the groove. The connecting pipe 304 has an inner cavity with a rectangular cross-section and a through cavity. Clamping claws 303 are respectively provided on both sides of the two connecting pipes 304. Both clamping claws 303 are provided with sliding rods 305. The cross-section of the sliding rod 305 is the same as the cross-section of the inner cavity of the connecting pipe 304. The sliding rod 305 can be slidably connected to the inner cavity of the connecting pipe 304. A connecting rod 306 is provided between the two sliding rods 305. Both ends of the connecting rod 306 have threads respectively and can be threadedly connected with the two sliding rods 305. The threads at both ends of the connecting rod 306 are in opposite directions. An adjusting wheel 307 is sleeved on the middle part of the connecting rod 306, and the adjusting wheel 307 can have frictional contact with the surfaces of the first transmission belt 8 and the second transmission belt 9.

[0033] The first transmission belt 8 and the second transmission belt 9 are both provided with transmission belts, and the side wall of the adjusting wheel 307 is provided with anti-skid ridges, and the transmission belts can drive the adjusting wheel 307 to rotate through the anti-skid ridges.

[0034] The clamping jaws 303 are provided with a slope 308 , which helps to clamp the chip along the two side edges thereof, and the slope 308 extends outwards to help keep the chip stably located between the two clamping jaws 303 .

[0035] There are two slopes 308 , and a protection pad 309 is arranged between the two slopes 308 . The protection pad 309 is made of silicone material.

[0036] The first transmission belt 8 and the second transmission belt 9 are at the same horizontal height, and the bottom of the clamp 303 is 0.5-1mm higher than the surface of the first transmission belt 8. When the clamp 303 just rotates into the clamping position and the releasing position, the adjusting wheel 307 can come into contact with the transmission belt. By starting the first transmission belt 8 and the second transmission belt 9 to work, the friction between the transmission belt surface and the anti-slip edge drives the adjusting wheel 307 to rotate.

[0037] In one detection cycle, the chip is firstly fed into the clamping jaw 303 at the clamping position through the first transmission belt 8, and the friction adjusting wheel 307 is started to rotate by the first transmission belt 8, and then the threaded transmission slide rod 305 of the connecting rod 306 is moved closer to each other, driving the clamping jaw 303 to clamp the chip from both sides, and then the driving motor 205 drives the dial 202 to drive the groove wheel 201 to rotate, so that the clamping jaw 303 drives the chip to move to the front detection position and pause in the interval, and the front of the chip is detected by the first shooting probe 6, and the driving motor 205 continues to rotate, and the clamping jaw 303 clamps the chip to enter the reverse detection position. During the process, the flipping gear 302 is meshed with the arc-shaped rack 5. When the flipping gear 302 moves to the center line of the arc-shaped rack 5, the clamp 303 can just drive the chip to flip 180 degrees, so that the back pins of the chip can face upwards, and it is inspected by the second shooting probe 7. The clamp 303 clamps the chip to leave the back detection work position, and the flipping gear 302 is meshed with the arc-shaped rack 5 and flipped 180 degrees again so that the front side of the chip faces upwards and enters the release work position, and the second transmission belt 9 is started. Its transmission direction is opposite to that of the first transmission belt 8, so that the two clamps 303 can move away from each other, and the chip is released to the surface of the second transmission belt 9 for transportation.

[0038] 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.

[0039] 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. A chip performance detection device, characterized in that: include: A box (1), wherein a conveying device, a detection mechanism and a transfer mechanism (2) are arranged in the box (1), wherein; The transfer mechanism (2) comprises a groove wheel (201), a dial (202) and a driving motor (205), wherein the bottom of the dial (202) is fixedly connected to a first shaft (203), the bottom of the first shaft (203) is connected to the bottom of the box (1) via a bearing, a driven pulley (204) is fixedly connected to the first shaft (203), an active pulley (206) is arranged at the output end of the driving motor (205), the active pulley (206) and the driven pulley (204) are connected via a belt (207), and a second pulley (206) is fixedly connected to the center of the groove wheel (201). A shaft (208), the bottom of the second shaft (208) is connected to the bottom of the box body (1) through a bearing, the top of the second shaft (208) is fixedly connected with a star-shaped connecting member (209), the star-shaped connecting member (209) has four branches, the vertical midlines of the four branches correspond to the grooves of the groove wheel (201) one by one, the distal ends of the four branches are rotatably connected with a clamping mechanism (3), the transfer mechanism (2) can drive the clamping mechanism (3) to pause intermittently at four working positions in sequence, and the four working positions include a front detection working position and a back detection working position; The clamping mechanism (3) comprises a rotating rod (301), one end of the rotating rod (301) is rotatably connected to a branch, a flip gear (302) is fixedly connected to the rotating rod (301) in the circumferential direction, a bracket (4) is arranged on the inner wall of the box body (1), an arc-shaped rack (5) is arranged on the top of the bracket (4), the flip gear (302) and the arc-shaped rack (5) are meshingly connected, the arc-shaped rack (5) coincides with the vertical center line of the back detection working position, and the flip gear (302) moves to the center line of the arc-shaped rack (5) so as to just flip the clamping mechanism (3) by 180 degrees; The detection mechanism comprises a first shooting probe (6) and a second shooting probe (7), wherein the first shooting probe (6) and the second shooting probe (7) are located above a front detection work position and a back detection work position.

2. A chip performance detection device according to claim 1, characterized in that: The working position also includes a clamping working position and a releasing working position, and the conveying device includes a first transmission belt (8) and a second transmission belt (9), and the first transmission belt (8) and the second transmission belt (9) are matched with the clamping working position and the releasing working position respectively.

3. A chip performance detection device according to claim 2, characterized in that: A groove is provided at one end of the clamping mechanism (3), and connecting pipes (304) are respectively provided on both sides of the groove. The connecting pipe (304) has an inner cavity with a rectangular cross section and is connected thereto. Clamping claws (303) are respectively provided on both sides of the two connecting pipes (304). A sliding rod (305) is provided on each of the two clamping claws (303). The cross section of the sliding rod (305) is the same as the cross section of the inner cavity of the connecting pipe (304). The sliding rod (305) can be slidably connected to the inner cavity of the connecting pipe (304). A connecting rod (306) is provided between the two sliding rods (305). Both ends of the connecting rod (306) have threads and can be threadedly connected to the two sliding rods (305). The threads at both ends of the connecting rod (306) are in opposite directions. An adjusting wheel (307) is sleeved on the middle part of the connecting rod (306), and the adjusting wheel (307) can have frictional contact with the surfaces of the first transmission belt (8) and the second transmission belt (9).

4. A chip performance detection device according to claim 3, characterized in that: The first transmission belt (8) and the second transmission belt (9) are both provided with transmission belts, and the side wall of the adjusting wheel (307) is provided with anti-skid ridges, and the transmission belt can drive the adjusting wheel (307) to rotate through the anti-skid ridges.

5. A chip performance detection device according to claim 4, characterized in that: The clamping jaw (303) is provided with a slope (308).

6. A chip performance detection device according to claim 5, characterized in that: There are two slopes (308), and a protection pad (309) is arranged between the two slopes (308), and the protection pad (309) is made of silica gel material.

7. A chip performance detection device according to claim 6, characterized in that: The first transmission belt (8) and the second transmission belt (9) are both at the same level, and the bottom of the clamping jaw (303) is 0.5-1 mm higher than the surface of the first transmission belt (8).

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