Package substrate defect detection device

Abstract

The utility model relates to a package substrate defect detection device, which comprises a package shell, a bearing frame, a bearing jig, a driving assembly and a detection assembly, a detection cavity is formed in the packaging shell, a first sliding rail and a second sliding rail are arranged on the inner side and the bottom of the detection cavity respectively, and a feeding port communicated with the detection cavity is further formed in one side of the packaging shell; the bearing frame is horizontally clamped on the first sliding rail from the feeding port and can slide left and right, the bearing jig is clamped in the bearing frame and can movably rotate, the driving assembly is fixedly arranged at the top of the detection cavity and is in power connection with the bearing jig, and the detection assembly is clamped on the second sliding rail and can slide left and right; the detection assembly comprises a sliding seat, a laser emitting sensor and a laser receiving sensor. According to the utility model, the detection assembly with the laser emission sensor and the laser receiving sensor is designed, so that the precision is higher than that of a detection method that a camera captures an image; the utility model has the advantages of strong practicability and strong popularization significance.

Description

Technical Field

[0001] The utility model relates to a circuit board processing device, in particular to a device for detecting defects of a packaging substrate. Background Art

[0002] The packaging substrate, abbreviated as the substrate, is a substrate used to re-package multiple first-level packaged IC components to form a substrate with a higher density and capacity. It can provide functions such as electrical connection, protection, support, heat dissipation, and assembly for the chip, so as to achieve the purpose of multi-pin, reducing the volume of the packaged product, improving electrical performance and heat dissipation, and ultra-high density or multi-chip modularization.

[0003] During the production process of the packaging substrate, it is necessary to detect the appearance defects, that is, to detect surface defects such as scratches, pits or protrusions on the surface of the substrate, so as to ensure the quality of the final shipped products. Most of the existing defect detection methods use an appearance detection camera in combination with a defect recognition program. The camera captures the image of the substrate surface and then hands it over to the program for analysis and recognition, so as to achieve the purpose of automatic defect detection. However, the accuracy of this detection method is often not high, and it is difficult to detect and identify some subtle defects. In addition, this detection method generally exposes the substrate to the external environment for detection, and the detection result is easily interfered by external dust and the like. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a device for detecting defects of a packaging substrate to overcome the deficiencies in the prior art.

[0005] A device for detecting defects of a packaging substrate includes a packaging shell, a carrier frame, a carrier fixture, a driving component and a detection component. A detection cavity is provided inside the packaging shell, a first slide rail and a second slide rail are respectively provided on the inner side and the bottom of the detection cavity, and a feed port communicating with the detection cavity is further provided on one side of the packaging shell. The carrier frame is horizontally clamped on the first slide rail from the feed port and can slide left and right. The carrier fixture is clamped and installed in the carrier frame and can rotate actively. The driving component is fixedly installed on the top of the detection cavity and is power-connected to the carrier fixture. The detection component is clamped and installed on the second slide rail and can slide left and right. The detection component includes a sliding seat, a laser emission sensor and a laser reception sensor. The sliding seat is clamped and installed on the second slide rail, and the laser emitter and the laser reception sensor are respectively installed at both ends of the sliding seat and are both inclined inward.

[0006] Further, the carrier frame includes an outer frame, an inner frame, and several first rotation limit members. The outer frame is snap-fitted on the first slide rail and can slide left and right. The inner frame is installed inside the outer frame, and a fixture groove with a hollow bottom is provided in the middle of the inner frame. Several of the first rotation limit members are respectively snap-fitted inside the inner frame, and the several first rotation limit members can rotatably extend into the fixture groove to limit the carrier fixture. A driving through hole penetrating up and down is further provided on the inner frame, and the driving through hole communicates with the fixture groove.

[0007] Further, the carrier frame further includes several telescopic air rods and balls. The inner frame is axially connected to the inside of the outer frame and can rotate movably. Several limit card holes are provided on the outer side of the inner frame, and a ball groove communicating with the fixture groove is further provided on the side wall of the fixture groove. Several of the telescopic air rods are respectively installed on the inside of the outer frame and are arranged opposite to the several limit card holes. Several of the balls are all snap-fitted in the ball groove and can roll movably.

[0008] Further, the carrier fixture includes a fixture body and several second rotation limit members. The fixture body is snap-fitted in the fixture groove. The fixture body is circularly designed and a bearing groove with a hollow bottom is provided in the middle thereof. Several of the second rotation limit members are respectively snap-fitted inside the fixture body, and the several second rotation limit members can rotatably extend into the bearing groove.

[0009] Further, the driving assembly includes a lifting cylinder, a driving motor, and a driving wheel. The upper end of the lifting cylinder is fixedly installed on the top of the detection cavity. The driving motor is installed at the lower end of the lifting cylinder and can be driven by the lifting cylinder to move up and down. The driving wheel is installed at the lower end of the driving motor and is located in the driving through hole. The driving wheel is also power-connected to the carrier fixture.

[0010] In summary, the beneficial effects of the defect detection device for packaging substrates of the present utility model are as follows: By designing a detection assembly with a laser emission sensor and a laser reception sensor, the laser reflection on the surface of the packaging substrate is used to scan and detect whether there are defects on the packaging substrate. Compared with the detection method of capturing images by a camera, the accuracy of laser scanning is higher. Moreover, during the detection process, both the packaging substrate and the detection assembly are located in a sealed detection cavity, effectively preventing interference from external dust, etc.; the carrier frame is designed as a flipable structure, enabling the detection device to realize efficient scanning and detection of both sides of the packaging substrate; the rotatable carrier fixture cooperates with the driving assembly to drive the packaging substrate to rotate, enabling the detection assembly to quickly scan and detect every part of the substrate surface; the present utility model has strong practicability and has strong popularization significance. Description of the Drawings

[0011] Figure 1 It is a schematic cross-sectional structure diagram of a defect detection device for packaging substrates of the present utility model;

[0012] Figure 2 is Figure 1 the exploded view of the decomposition structure;

[0013] Figure 3 is Figure 2 the structural diagram of the encapsulation shell in;

[0014] Figure 4 is Figure 2 the exploded view of the carrier frame in;

[0015] Figure 5 is Figure 2 the exploded view of the carrier fixture in;

[0016] Figure 6 is Figure 2 the exploded view of the drive assembly in;

[0017] Figure 7 is Figure 2 the exploded view of the detection component in. Specific embodiments

[0018] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further details the utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0019] As Figures 1 to 7 shown, the utility model provides a packaging substrate defect detection device 100, which includes an encapsulation shell 10, a carrier frame 20, a carrier fixture 30, a drive assembly 40 and a detection component 50. A detection cavity 11 is provided inside the encapsulation shell 10, a first slide rail 12 and a second slide rail 13 are respectively provided on the inner side and bottom of the detection cavity 11, and a feed port 14 communicating with the detection cavity 11 is further provided on one side of the encapsulation shell 10. The carrier frame 20 is horizontally clamped on the first slide rail 12 from the feed port 14 and can slide left and right, the carrier fixture 30 is clamped and installed inside the carrier frame 20 and can rotate actively, the drive assembly 40 is fixedly installed on the top of the detection cavity 11 and is power-connected to the carrier fixture 30, and the detection component 50 is clamped and installed on the second slide rail 13 and can slide left and right. It can be understood that the utility model also includes several gas supply structures, power supply structures, drive devices, sensors and control systems, and since they are all conventional technical contents in this technical field, they will not be described in detail herein.

[0020] The carrier frame 20 includes an outer frame 21, an inner frame 22, and a plurality of first rotation limit members 23. The outer frame 21 is snap-fitted on the first slide rail 12 and can slide left and right. The inner frame 22 is installed inside the outer frame 21, and a fixture groove 221 with a hollow bottom is provided in the middle of the inner frame 22. A plurality of the first rotation limit members 23 are respectively snap-fitted inside the inner frame 22, and the plurality of first rotation limit members 23 can rotatably extend into the fixture groove 221 to limit the carrier fixture 30. A driving through hole 222 penetrating up and down is further provided on the inner frame 22, and the driving through hole 222 communicates with the fixture groove 221. The carrier frame 20 provided with the fixture groove 221 can be snap-fitted with carrier fixtures 30 of different specifications, and thus the defect detection of packaging substrates of different specifications can be realized.

[0021] The carrier frame 20 further includes a plurality of telescopic air rods 24 and balls 25. The inner frame 22 is pivotally connected to the inside of the outer frame 21 and can rotate movably. A plurality of limit card holes 223 are provided on the outside of the inner frame 22, and a ball groove 224 communicating with the fixture groove 221 is further provided on the side wall of the fixture groove 221. A plurality of the telescopic air rods 24 are respectively installed inside the outer frame 21 and are arranged opposite to the plurality of limit card holes 223, and a plurality of the balls 25 are all snap-fitted in the ball groove 224 and can roll movably. The inner frame 22 pivotally connected to the outer frame 21 can drive the carrier fixture 30 and the packaging substrate to rotate and flip, and it is not necessary to manually turn over the packaging substrate for detection during the detection process, which greatly improves the efficiency of double-sided detection. The design of the balls 25 on the inner frame 22 is more convenient for the carrier fixture 30 to rotate in the fixture groove 221.

[0022] The carrier fixture 30 includes a fixture main body 31 and a plurality of second rotation limit members 32. The fixture main body 31 is snap-fitted in the fixture groove 221. The fixture main body 31 is circularly designed and a carrier groove 311 with a hollow bottom is provided in the middle thereof. A plurality of the second rotation limit members 32 are respectively snap-fitted inside the fixture main body 31, and the plurality of second rotation limit members 32 can rotatably extend into the carrier groove 311. The second rotation limit members 32 that can rotatably extend can limit and fix the packaging substrate placed in the carrier groove 311, so that the packaging substrate will not loosen, shift or even fall during the process of receiving scanning detection.

[0023] The driving component 40 includes a lifting cylinder 41, a driving motor 42 and a driving wheel 43. The upper end of the lifting cylinder 41 is fixedly installed on the top of the detection cavity 11. The driving motor 42 is installed at the lower end of the lifting cylinder 41 and can be driven by the lifting cylinder 41 to move up and down. The driving wheel 43 is installed at the lower end of the driving motor 42 and is located in the driving through hole 222. The driving wheel 43 is also power-connected to the carrying fixture 30. The driving component 40 can control the engagement or separation between the driving wheel 43 and the carrying fixture 30 through the lifting cylinder 41, so as to drive the carrying fixture 30 to rotate in the fixture groove 221, and it will not prevent the carrying frame 20 and the carrying fixture 30 from sliding out of the packaging shell 10 for the operation of loading and unloading the packaging substrate.

[0024] The detection component 50 includes a sliding seat 51, a laser emission sensor 52 and a laser reception sensor 53. The sliding seat 51 is snap-fitted on the second slide rail 13. The laser emitter and the laser reception sensor 53 are respectively installed at both ends of the sliding seat 51 and are both inclined inward. The laser emission sensor 52 can emit laser light towards the surface of the packaging substrate. After hitting the surface of the packaging substrate, the laser light will be reflected and emitted at a certain angle. When the surface is flat and defect-free, the emitted laser light can be exactly received by the laser reception sensor 53. When there are concave or convex defects on the surface, the angle of the emitted laser light becomes non-standard, so it cannot be received by the laser reception sensor 53. The sliding seat 51 can drive the two groups of laser sensors to move horizontally, so that the sensors can linearly detect the surface of the packaging substrate. Cooperating with the carrying fixture 30 that can drive the packaging substrate to rotate can further realize the planar defect detection of the packaging substrate.

[0025] In summary, the beneficial effects of the packaging substrate defect detection device 100 of the present utility model are as follows: By designing the detection component 50 with a laser emission sensor 52 and a laser reception sensor 53, the laser reflection on the surface of the packaging substrate is used to scan and detect whether there are defects on the packaging substrate. Compared with the detection method of capturing images by a camera, the laser scanning has higher accuracy. Moreover, during the detection process, the packaging substrate and the detection component 50 are both located in the closed detection cavity 11, effectively preventing interference from external dust and the like to the detection; the carrying frame 20 is designed as a rotatable structure, enabling the detection device to realize efficient scanning and detection of both sides of the packaging substrate; the rotatable carrying fixture 30 cooperates with the driving component 40 to drive the packaging substrate to rotate, enabling the detection component 50 to quickly scan and detect every part of the substrate surface; the present utility model has strong practicability and has strong promotion significance.

[0026] The above-described embodiments merely represent one implementation manner of the utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several variations and improvements can still be made, and these all fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A packaging substrate defect detection device, characterized in that: It includes a packaging shell, a carrying frame, a carrying fixture, a driving component and a detection component; a detection cavity is provided in the packaging shell, and a first slide rail and a second slide rail are respectively provided on the inner side and the bottom of the detection cavity, and a feed port connected to the detection cavity is also provided on one side of the packaging shell; the carrying frame is horizontally engaged with the first slide rail from the feed port and can slide left and right, the carrying fixture is engaged and installed in the carrying frame and can be movably rotated, the driving component is fixedly installed on the top of the detection cavity and is dynamically connected to the carrying fixture, and the detection component is engaged and installed on the second slide rail and can slide left and right; the detection component includes a sliding seat, a laser emitting sensor and a laser receiving sensor, the sliding seat is engaged and installed on the second slide rail, and the laser emitting sensor and the laser receiving sensor are respectively installed at both ends of the sliding seat and are both inclined inward.

2. The packaging substrate defect detection device according to claim 1, characterized in that: The supporting frame includes an outer frame, an inner frame and a plurality of first rotation limiting members; the outer frame is snap-fitted and mounted on the first slide rail and can slide left and right, the inner frame is mounted on the inner side of the outer frame, and a fixture groove with a hollow bottom is provided in the middle of the inner frame; a plurality of the first rotation limiting members are snap-fitted and mounted in the inner frame respectively, and the plurality of first rotation limiting members can be movably rotated and extended in the fixture groove to limit the supporting fixture; a driving through hole is also provided on the inner frame which passes through from top to bottom, and the driving through hole is connected to the fixture groove.

3. The packaging substrate defect detection device according to claim 2, wherein: The supporting frame also includes a plurality of telescopic gas rods and balls; the inner frame is axially connected to the inner side of the outer frame and can rotate movably, a plurality of limit holes are provided on the outer side of the inner frame, and a ball groove connected to the fixture groove is also provided on the side wall of the fixture groove; the plurality of telescopic gas rods are respectively installed on the inner side of the outer frame and arranged opposite to the plurality of limit holes, and the plurality of balls are all engaged and installed in the ball groove and can roll movably.

4. The packaging substrate defect detection device according to claim 2, wherein: The bearing fixture includes a fixture body and a plurality of second rotation limiting members; the fixture body is engaged in the fixture groove, the fixture body is circular in design and a bearing groove with a hollow bottom is provided in the middle thereof, and the plurality of second rotation limiting members are respectively engaged and installed in the fixture body, and the plurality of second rotation limiting members can be movably rotated and extended in the bearing groove.

5. The packaging substrate defect detection device according to claim 2, wherein: The driving assembly includes a lifting cylinder, a driving motor and a driving wheel; the upper end of the lifting cylinder is fixedly mounted on the top of the detection cavity, the driving motor is mounted on the lower end of the lifting cylinder and can be driven by the lifting cylinder to move up and down, the driving wheel is mounted on the lower end of the driving motor and is located in the driving through hole, and the driving wheel is also connected to the power of the supporting fixture.

Images