CN115267512B - Detection device and detection method for chip package - Google Patents

Abstract

The invention discloses a detection device and a detection method of a chip package, wherein the detection device comprises a fixed frame and supporting components which are arranged at two sides of the inside of the fixed frame and used for supporting a package shell, the supporting components comprise a traction rope which is rotatably arranged and a baffle plate which is fixedly sleeved at the outer side of the traction rope, and a pin which protrudes out of the package shell is arranged between the two baffle plates; a limiting component is arranged on the partition board, a driving component is arranged between the partition board and the inner wall of the fixed frame, and when the traction rope drives the packaging shell to move into the fixed frame, the driving component expands the limiting component and is arranged at the tops of the pins; through the elasticity of haulage rope itself, can make the haulage rope crooked when the probe upwards moves and extrudees excessively to make encapsulation casing upwards move avoid directly antagonizing with the probe, can play certain cushioning effect to encapsulation casing, be favorable to avoiding the hard contact between probe and the pin, can carry out good protection to it.

Description

Detection device and detection method for chip package

Technical Field

The present invention relates to the field of packaged chip detection, and in particular, to a device and method for detecting a chip package.

Background

The chip package, i.e. the housing for mounting the semiconductor integrated circuit chip, has the functions of placing, fixing, sealing, protecting the chip and enhancing the electrothermal performance. The chip package is a bridge for communicating the world inside the chip with an external circuit, the contact points of the chip are connected to the pins of the package shell by wires, and the pins are connected with other devices by wires on the printed board, so that the conductivity of the pins needs to be detected before the chip leaves the factory, and the problem of poor contact between the pins and the chip is solved.

The invention Chinese patent No. 214477340U discloses a pin detection device for chip packaging, which comprises a high foot stool, a loading frame, a detection assembly, a low foot stool, a traction assembly and a chip packaging body, wherein the loading frame is symmetrically and fixedly arranged on the upper surface of the high foot stool, and the detection assembly is rotatably arranged between the loading frames.

The device fixes the packaged chip in a bolt fixing mode in the using process, but is difficult to take out due to the small size of the packaged chip when taken out, and the test probe is in direct hard contact with the packaged chip, so that the packaged chip is not protected.

Therefore, it is necessary to provide a device and a method for inspecting a chip package to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a device and a method for detecting a chip package, which are used for solving the problems that the prior equipment provided in the background art fixes a packaged chip in a bolt fixing mode in the use process, but the packaged chip is difficult to take out due to small size when taken out, and the test probe is in direct hard contact with the packaged chip, so that the packaged chip is not protected.

Based on the thought, the invention provides the following technical scheme: the packaging structure comprises a fixed frame and supporting components which are arranged at two sides of the inside of the fixed frame and used for supporting a packaging shell, wherein the supporting components comprise a traction rope which is rotatably arranged and a partition board which is fixedly sleeved on the outer side of the traction rope, and protruding pins on the packaging shell are arranged between two adjacent partition boards;

be provided with spacing subassembly on the baffle, be provided with drive assembly between baffle and the fixed frame inner wall, when the haulage rope drove the encapsulation casing and remove to fixed frame inside, drive assembly expandes spacing subassembly and places in the pin top.

As a further scheme of the invention: the limiting assembly comprises a limiting plate which is arranged on one side of the partition plate in a rotating mode, a sliding groove is formed in the partition plate, one end of the limiting plate is arranged inside the sliding groove, when the limiting plate rotates to the inside of the sliding groove, the outer side face of the limiting plate is flush with the side face of the partition plate, a pressing block is slidably connected inside the sliding groove, and one side, close to the partition plate, of the limiting plate is arranged to be an inclined face.

As a further scheme of the invention: the driving assembly comprises a guide rod arranged inside the sliding groove, one end of the guide rod is fixedly connected with the pressing block, the other end of the guide rod penetrates through the partition plate and is in sliding connection with the partition plate, one end of the guide rod extending to the outer side of the partition plate is fixedly connected with a second magnetic plate, a notch matched with the second magnetic plate is formed in one side face of the partition plate, springs are sleeved on the outer side of the guide rod, first magnetic plates which are arranged opposite to the second magnetic plates are fixedly arranged on two side faces of the inner side of the fixing frame, and different magnetic poles are arranged on one faces of the first magnetic plates opposite to the second magnetic plates.

As a further scheme of the invention: vertical shafts are fixedly connected to the top surface and the bottom surface of one end of the limiting plate, mounting holes are formed in the top end and the bottom end of the chute on the partition plate, the vertical shafts penetrate through the mounting holes and are connected with the partition plate in a rotating mode, the mounting hole is internally provided with a coil spring, the coil spring is sleeved on the outer side of the vertical shaft, and two free ends of the coil spring are fixedly connected with the outer side surface of the vertical shaft and the inner side surface of the mounting hole respectively.

As a further scheme of the invention: the second magnetic plate is provided with a round shaft, a side surface of the second magnetic plate, which is close to the fixed frame, is provided with a groove, the round shaft is rotationally arranged inside the groove, the top end and the bottom end of the round shaft are fixedly connected with pin shafts and are rotationally connected with the partition plate through the pin shafts, and the outer circumferential surface of the round shaft protrudes to the outer side of the second magnetic plate.

As a further scheme of the invention: the number of the partition plates is set to be a plurality of and evenly distributed on the outer sides of the traction ropes, through holes penetrating through the partition plates are formed in the partition plates, and the traction ropes penetrate through the through holes and are fixedly connected with the partition plates.

As a further scheme of the invention: the traction rope comprises a traction rope body and is characterized in that rotating shafts are arranged at two ends of the traction rope body, the traction rope body is sleeved on the outer side of the rotating shaft, raised strips are fixedly arranged on the outer side of the rotating shaft, the number of the raised strips is multiple and distributed on the outer side of the rotating shaft in an annular array mode, and a meshing structure is formed between the raised strips and two adjacent partition boards.

As a further scheme of the invention: the both sides of fixed frame are all fixedly connected with curb plate, the pivot passes the curb plate and rotates with the curb plate to be connected, the bottom fixedly connected with riser of curb plate.

As a further scheme of the invention: the inside bottom activity of fixed frame is provided with the probe that is used for detecting the pin.

The method for detecting the chip package comprises the following steps:

s1, placing a packaging shell between two traction ropes and enabling pins on the packaging shell to be clamped between two adjacent partition boards;

s2, starting a motor, driving a driving shaft to rotate through the motor, driving a rotating shaft to rotate through transmission of a transmission belt, driving a traction rope and a partition plate on the outer side of the traction rope to rotate through the rotating shaft, and then conveying the packaging shell into a fixed frame;

s3, stopping the motor, enabling the probe to move upwards to contact with the pins on the packaging shell, detecting whether the pins are in an electrified state, and after detection, enabling the motor to continue to start to bring the packaging shell after the test out of the fixing frame.

Compared with the prior art, the invention has the beneficial effects that: the packaging shell to be detected is placed between the two traction ropes, when the packaging shell is placed between the two traction ropes, the pins on the packaging shell can be clamped between the two partition boards, the traction ropes are driven to move through the meshing relationship between the convex strips and the two adjacent partition boards, and then the packaging shell is driven to move to the inside of the fixed frame, at the moment, the limiting component can be unfolded and placed at the top of the pins through the driving component, limiting of the pins is facilitated, the packaging shell is fixed in a matched mode through the traction ropes, the partition boards and the limiting boards, workers are facilitated to place and take the packaging shell, and due to the elasticity of the traction ropes, the traction ropes can be bent when the probe moves upwards to excessively extrude the pins, so that the packaging shell moves upwards to avoid being directly opposed to the probe, a certain buffering effect can be achieved on the packaging shell, hard contact between the probe and the pins is avoided, and good protection can be achieved.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the structure of the shaft and the protruding strips of the present invention;

FIG. 4 is a schematic diagram of the structure of the traction rope, the partition and the first magnetic plate of the present invention;

FIG. 5 is a schematic perspective view of a separator according to the present invention;

FIG. 6 is an exploded view of a separator of the present invention;

FIG. 7 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;

FIG. 8 is an enlarged schematic view of the structure of FIG. 3B in accordance with the present invention;

FIG. 9 is an enlarged schematic view of the structure of FIG. 3 at C in accordance with the present invention;

FIG. 10 is a schematic view of the vertical axis and coil spring configuration of the present invention.

In the figure: 1. a rotating shaft; 2. a fixed frame; 3. a cylinder; 4. packaging the shell; 5. a convex strip; 6. a side plate; 7. a connecting shaft; 8. a transmission belt; 9. a traction rope; 10. a partition plate; 11. pins; 12. a first magnetic plate; 13. briquetting; 14. a limiting plate; 15. a circular shaft; 16. a chute; 17. a vertical axis; 18. a notch; 19. a second magnetic plate; 20. a guide rod; 21. a spring; 22. a coil spring; 23. a motor; 24. a through hole; 25. and (5) an inclined plane.

Detailed Description

As shown in fig. 1-3, a device for detecting a chip package includes a fixed frame 2 and supporting components disposed on two sides inside the fixed frame 2, and the supporting components pass through the fixed frame 2, so that after actual use, a packaged chip to be detected is placed on the supporting components, and the packaged chip is driven to move to the inside of the fixed frame 2 by rotation of the supporting components, so that the packaged chip is detected by a detection unit preset at the bottom inside the fixed frame 2.

Specifically, the support assembly comprises a traction rope 9 which is rotatably arranged and a partition board 10 which is fixedly sleeved on the outer side of the traction rope 9, the number of the partition boards 10 is multiple and uniformly distributed on the outer side of the traction rope 9, specifically, through holes 24 which penetrate are formed in the partition board 10, and the traction rope 9 penetrates through the through holes 24 and is fixedly connected with the partition board 10.

Further, the haulage rope 9 is integrally arranged, the rotating shafts 1 are arranged at two ends of the haulage rope 9, the haulage rope 9 is sleeved on the outer side of the rotating shaft 1, the convex strips 5 are fixedly arranged on the outer side of the rotating shaft 1 and are distributed on the outer side of the rotating shaft 1 in a ring-shaped array, and the convex strips 5 and the adjacent two partition plates 10 form a meshing structure, so that the rotating shaft 1 can drive the pull ropes and the partition plates 10 on the outer side of the pull ropes to move when driving the convex strips 5 to rotate.

The motor 23 is arranged along the opposite direction of the movement of the pull rope, a driving shaft is connected to an output shaft of the motor 23 in a transmission way, a connecting shaft 7 is fixedly connected to the end face of one end of the rotating shaft 1, which is close to one side of the motor 23, pulleys are fixedly sleeved on the outer sides of the connecting shaft 7 and the driving shaft, and a driving belt 8 is sleeved on the outer sides of the pulleys.

In practical use, the packaging shell 4 to be detected is placed between the two traction ropes 9, specifically, two sides of the packaging shell 4 are extended to form pins 11 connected with the chip, when the packaging shell is placed between the two traction ropes 9, the distance between the two partition boards 10 is matched with the width of the pins 11, so that when the packaging shell 4 is placed between the two traction ropes 9, the pins 11 on the packaging shell 4 can be clamped between the two partition boards 10, at the moment, the driving shaft is driven to rotate by the motor 23, the rotating shaft 1 and the convex strips 5 on the outer side of the rotating shaft can be driven to rotate by the transmission of the transmission belt 8, the traction ropes 9 are driven to move by the meshing relationship between the convex strips 5 and the two adjacent partition boards 10, and the packaging shell 4 is driven to move to the inside of the fixed frame 2, at this time, the detection unit at the bottom end inside the fixed frame 2 is in butt joint with the pin 11 on the packaging shell 4, so that the conduction condition of the pin 11 is detected, whether the pin 11 is not connected with the chip in the packaging process is checked, specifically, the detection unit is a detection probe, the cylinder 3 is arranged on the bottom surface inside the fixed frame 2, the output shaft of the cylinder 3 is connected with the probe, the probe is driven to move upwards or downwards, the probe is similar to a metal probe on a universal meter, the probe is mainly used for being contacted with the pin 11 to check whether the probe is electrified, and the probe is provided with an electric wire connected with external display equipment, so that the detected signal is transmitted.

However, in the actual use process, when the air cylinder 3 drives the probe to move upwards and excessively contact with the pin 11 of the packaging shell 4, the packaging shell 4 is driven to move upwards, so that the packaging shell 4 moves upwards relative to the traction rope 9, and at the moment, the contact between the pin 11 and the probe is not tight and firm enough, so that the testing precision can be affected.

Therefore, a limiting component is arranged on the partition board 10 and used for limiting the pins 11, so that the pins are prevented from moving upwards relative to the traction rope 9.

As shown in fig. 3 to 9, the above-mentioned limit assembly includes a limit plate 14 rotatably disposed on one side of the partition plate 10, specifically, a chute 16 is formed on the partition plate 10 near the top end, one end of the limit plate 14 is disposed inside the chute 16, and when the limit plate 14 rotates into the chute 16, the outer side surface of the limit plate 14 is flush with the side surface of the partition plate 10, a pressing block 13 is slidably connected inside the chute 16, the pressing block 13 is cubic and contacts the top and bottom of the chute 16, and for the purpose of pressing the limit plate 14, the side of the limit plate 14 near the partition plate 10 is provided with an inclined surface 25, so that when the slide block slides along the side surface of the limit plate 14 inside the chute 16, the slide block can be pressed, thereby causing the limit plate 14 to rotate outwards and be disposed at the top of the pins 11, and thus, through the disposed limit plate 14, the package housing 4 can be prevented from moving upwards relative to the traction rope 9 during the test.

Further, a driving component is arranged on one side of the ear plate, specifically, the driving component comprises a guide rod 20 arranged in the chute 16, one end of the guide rod 20 is fixedly connected with the pressing block 13, the other end of the guide rod 20 passes through the partition plate 10 and is in sliding connection with the partition plate 10, one end of the guide rod 20 extending to the outer side of the partition plate 10 is fixedly connected with a second magnetic plate 19, a notch 18 matched with the second magnetic plate 19 is formed in one side surface of the partition plate 10, close to the fixed frame 2, in an initial state, the second magnetic plate 19 is accommodated in the notch 18, in addition, a spring 21 is sleeved on the outer side of the guide rod 20, and the spring 21 is arranged between the pressing block 13 and one end face of the chute 16;

the first magnetic plates 12 which are opposite to the second magnetic plates 19 are fixedly arranged on the two side surfaces of the inside of the fixed frame 2, and different magnetic poles are arranged on the opposite surfaces of the first magnetic plates 12 and the second magnetic plates 19, when the second magnetic plates 19 move into the fixed frame 2, the pressing blocks 13 can be driven to slide outwards through the attraction of the first magnetic plates 12 to the second magnetic plates 19, so that the limiting plates 14 are extruded to rotate to the tops of the pins 11.

In order to reset the limiting plate 14, vertical shafts 17 are fixedly connected to the top surface and the bottom surface of one end of the limiting plate 14, as shown in fig. 6 and 10, mounting holes are formed in the top end and the bottom end of the chute 16 on the partition plate 10, the vertical shafts 17 penetrate through the mounting holes and are rotationally connected with the partition plate 10, coil springs 22 are arranged in the mounting holes, the coil springs 22 are sleeved on the outer sides of the vertical shafts 17, and two free ends of the coil springs 22 are fixedly connected with the outer side surfaces of the vertical shafts 17 and the inner side surfaces of the mounting holes respectively, so that resetting of the limiting plate 14 is facilitated.

In the actual use process, the packaging shell 4 is placed between the two traction ropes 9, the pins 11 are arranged between the two adjacent partition boards 10, at the moment, the packaging shell 4 is driven by the traction ropes 9 to move into the fixed frame 2, when the packaging shell moves into the fixed frame 2, the first magnetic plate 12 generates suction force on the second magnetic plate 19, so that the second magnetic plate 19 is attracted on the first magnetic plate 12, the second magnetic plate 19 can drive the guide rod 20 to slide outwards, the pressing block 13 slides outwards against the acting force of the springs 21, the pressing block 13 gradually presses the limiting plate 14 in the sliding process, the limiting plate 14 rotates outwards to the top of the pins 11, the limiting plate 14 limits the pins 11, the pin 11 and the packaging shell 4 can be prevented from being driven to move upwards when the probe and the pin 11 are excessively extruded, so that the probe and the pin 11 can be in excessively tight and stable contact, after the packaging shell 4 is moved out of the fixed frame 2, the first magnetic plate 12 and the second magnetic plate 19 lose fit, so that the limiting plate 14 is driven to reset under the acting force of the coil spring 22, the limiting plate 14 is driven to move away from the top of the pin 11, a worker removes the packaging shell 4 from the traction rope 9, one side, close to the partition plate 10, of the limiting plate 14 is provided with an inclined surface 25, and therefore when the coil spring 22 drives the limiting plate 14 to reset and rotate into the sliding groove 16, the outer side surface of the limiting plate 14 is flush with the side surface of the partition plate 10, so that the packaging shell 4 is conveniently taken out of the traction rope 9.

To sum up, this device is through limiting plate 14 that sets up, limiting plate 14 outwards expands when encapsulation casing 4 moves to fixed frame 2 inside and carries out spacingly to encapsulation casing 4, avoid it to upwards remove for haulage rope 9, make probe and pin 11 stable contact, and because the elasticity that haulage rope 9 itself had, can make haulage rope 9 crooked when the probe upwards removes to pin 11 extrusion excessively, thereby make encapsulation casing 4 upwards remove avoid directly antagonizing with the probe, can play certain cushioning effect to encapsulation casing 4, be favorable to avoiding the hard contact between probe and the pin 11, can carry out good protection to it, and fix encapsulation casing 4 through haulage rope 9, baffle 10 and limiting plate 14 matched mode, be favorable to the staff to the placing and taking of encapsulation casing 4.

As shown in fig. 5-6, in order to reduce friction between the first magnetic plate 12 and the second magnetic plate 19 in the actual use process, a circular shaft 15 may be disposed on the second magnetic plate 19, a groove is formed on a side surface of the second magnetic plate 19 near the fixed frame 2, the circular shaft 15 is rotatably disposed inside the groove, specifically, the top end and the bottom end of the circular shaft 15 are fixedly connected with pins and rotatably connected with the partition plate 10 through the pins, and the outer circumferential surface of the circular shaft 15 protrudes to the outer side of the second magnetic plate 19, where the circular shaft 15 is made of iron.

When the encapsulation casing 4 moves to the inside of the fixed frame 2, the attraction of the first magnetic plate 12 to the second magnetic plate 19 and the circular shaft 15 enables the circular shaft 15 to be adsorbed on the first magnetic plate 12, and when the traction rope 9 drives the partition plate 10 to rotate, the circular shaft 15 can rotate on the side surface of the first magnetic plate 12, so that the first magnetic plate 12 is prevented from being in direct contact with the second magnetic plate 19, and the second magnetic plate 19 can move more stably relative to the first magnetic plate 12.

As shown in fig. 1, the two sides of the fixed frame 2 are fixedly connected with side plates 6, the rotating shaft 1 penetrates through the side plates 6 and is rotationally connected with the side plates 6, the bottoms of the side plates 6 are fixedly connected with vertical plates, and the side plates 6 can be well supported through the vertical plates.

Claims (4)

1. The utility model provides a detection device of chip package spare, includes fixed frame and sets up in the inside both sides of fixed frame and be used for carrying out the supporting component who supports encapsulation casing, its characterized in that: the supporting component comprises a traction rope which is rotatably arranged, a partition board which is fixedly sleeved on the outer side of the traction rope, and a protruding pin on the packaging shell is arranged between two adjacent partition boards;

a limiting component is arranged on the partition board, a driving component is arranged between the partition board and the inner wall of the fixed frame, and when the traction rope drives the packaging shell to move into the fixed frame, the driving component expands the limiting component and is arranged at the tops of the pins;

the limiting assembly comprises a limiting plate which is rotationally arranged on one side of the partition plate, a chute is formed in the partition plate, one end of the limiting plate is arranged in the chute, when the limiting plate rotates to the inside of the chute, the outer side face of the limiting plate is level with the side face of the partition plate, a pressing block is slidingly connected in the chute, and one side, close to the partition plate, of the limiting plate is provided with an inclined plane;

the driving assembly comprises a guide rod arranged in the chute, one end of the guide rod is fixedly connected with the pressing block, the other end of the guide rod penetrates through the partition plate and is in sliding connection with the partition plate, one end of the guide rod extending to the outer side of the partition plate is fixedly connected with a second magnetic plate, a notch matched with the second magnetic plate is formed in one side surface of the partition plate, close to the fixed frame, of the partition plate, a spring is sleeved on the outer side of the guide rod, first magnetic plates which are arranged opposite to the second magnetic plates are fixedly arranged on two inner side surfaces of the fixed frame, and different magnetic poles are arranged on one surfaces, opposite to the second magnetic plates, of the first magnetic plates;

the top surface and the bottom surface of one end of the limiting plate are fixedly connected with vertical shafts, the top end and the bottom end of the baffle plate, which are positioned on the sliding chute, are respectively provided with mounting holes, the vertical shafts penetrate through the mounting holes and are rotationally connected with the baffle plate, coil springs are arranged in the mounting holes, the coil springs are sleeved on the outer sides of the vertical shafts, and two free ends of the coil springs are respectively fixedly connected with the outer side surfaces of the vertical shafts and the inner side surfaces of the mounting holes;

the second magnetic plate is provided with a round shaft, a groove is formed in one side surface of the second magnetic plate, which is close to the fixed frame, the round shaft is rotatably arranged in the groove, the top end and the bottom end of the round shaft are fixedly connected with pin shafts and are rotatably connected with the partition plate through the pin shafts, and the outer circumferential surface of the round shaft protrudes to the outer side of the second magnetic plate;

the number of the partition boards is multiple and the partition boards are uniformly distributed on the outer sides of the traction ropes, through holes are formed in the partition boards, and the traction ropes pass through the through holes and are fixedly connected with the partition boards;

the traction rope comprises a traction rope body and is characterized in that rotating shafts are arranged at two ends of the traction rope body, the traction rope body is sleeved on the outer side of the rotating shaft, raised strips are fixedly arranged on the outer side of the rotating shaft, the number of the raised strips is multiple and distributed on the outer side of the rotating shaft in an annular array mode, and a meshing structure is formed between the raised strips and two adjacent partition boards.

2. The device for inspecting a chip package according to claim 1, wherein: the both sides of fixed frame are all fixedly connected with curb plate, the pivot passes the curb plate and rotates with the curb plate to be connected, the bottom fixedly connected with riser of curb plate.

3. The device for inspecting a chip package according to claim 1, wherein: the inside bottom activity of fixed frame is provided with the probe that is used for detecting the pin.

4. A method of inspecting a chip package using the inspection apparatus according to any one of claims 1 to 3, characterized in that: the method specifically comprises the following steps:

s1, placing a packaging shell between two traction ropes and enabling pins on the packaging shell to be clamped between two adjacent partition boards;

s2, starting a motor, driving a driving shaft to rotate through the motor, driving a rotating shaft to rotate through transmission of a transmission belt, driving a traction rope and a partition plate on the outer side of the traction rope to rotate through the rotating shaft, and then conveying the packaging shell into a fixed frame;

s3, stopping the motor, enabling the probe to move upwards to contact with the pins on the packaging shell, detecting whether the pins are in an electrified state, and after detection, enabling the motor to continue to start to bring the packaging shell after the test out of the fixing frame.

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