CN220019401U - Chip appearance inspection device based on visual recognition - Google Patents
Chip appearance inspection device based on visual recognition Download PDFInfo
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- CN220019401U CN220019401U CN202321007572.3U CN202321007572U CN220019401U CN 220019401 U CN220019401 U CN 220019401U CN 202321007572 U CN202321007572 U CN 202321007572U CN 220019401 U CN220019401 U CN 220019401U
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- 238000007689 inspection Methods 0.000 title claims abstract description 50
- 230000000007 visual effect Effects 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 238000007731 hot pressing Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Abstract
The utility model discloses a chip appearance inspection device based on visual identification, which comprises a device body, wherein a material guide mechanism is arranged at the top of the device body, a feed inlet of the material guide mechanism is arranged at a discharge hole of a burning device, a visual appearance inspection mechanism is fixedly connected to the device body behind the material guide mechanism through a connecting mechanism, and the visual appearance inspection mechanism is suspended above the material guide mechanism so as to perform appearance inspection on a chip passing through the material guide mechanism; the connecting mechanism comprises an installation support plate fixedly connected with the device body, a first upper and lower adjusting plate is slidably installed on the installation support plate, the top end of the first upper and lower adjusting plate is connected with a front and rear adjusting plate, the front end of the front and rear adjusting plate is connected with a second upper and lower adjusting plate, and the visual appearance checking mechanism is installed on the second upper and lower adjusting plate. The remarkable effects are as follows: visual recognition technology is adopted to carry out appearance inspection on the appearance of the chip, so that the inspection rate and accuracy are improved.
Description
Technical Field
The utility model relates to the technical field of integrated chip production, in particular to a chip appearance inspection device based on visual identification.
Background
After the off-line burning process, the IC chip must be inspected to ensure the quality of the chip. Because the IC is required to be taken out and packaged during offline burning, tools such as SOCKET and the like are put into the IC, and abnormal pin warping, upwarping and breaking of the packaged ICs such as SOP, QFP and the like can be avoided due to poor equipment and improper personnel operation. The inspection link mainly performs electrical performance test and chip appearance inspection on the packaged chips. The appearance defect of the chip directly affects the quality of the product and the smooth proceeding of the subsequent process links of IC manufacture.
However, the existing chip inspection technology generally adopts manual inspection by using a 4K microscope, manual operation is needed in the whole process, the efficiency is low, and the inspection error is large and the result is inaccurate due to the fact that the pins of the chip are more and more dense.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a chip appearance inspection device based on visual identification, which adopts the visual identification technology to inspect the appearance of a chip, and can improve the inspection speed and accuracy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a chip appearance inspection device based on visual recognition is characterized in that: the device comprises a device body, wherein a material guiding mechanism is arranged at the top of the device body, a feed inlet of the material guiding mechanism is arranged at a discharge hole of a burning device, a visual appearance checking mechanism is fixedly connected to the device body behind the material guiding mechanism through a connecting mechanism, and the visual appearance checking mechanism is suspended above the material guiding mechanism so as to perform appearance checking on a chip passing through the material guiding mechanism;
the connecting mechanism comprises an installation support plate fixedly connected with the device body, a first upper and lower adjusting plate is slidably installed on the installation support plate, the top end of the first upper and lower adjusting plate is connected with a front and rear adjusting plate, the front end of the front and rear adjusting plate is connected with a second upper and lower adjusting plate, and the visual appearance checking mechanism is installed on the second upper and lower adjusting plate.
Further, the front and rear adjusting plates on two sides of the second upper and lower adjusting plate are connected with light source connecting plates, a light source fixing plate is bridged between the two light source connecting plates, an inspection light source is mounted on the lower surface of the light source fixing plate, a through hole is formed in the center of the light source fixing plate and the center of the inspection light source, and the lower end of the visual appearance inspection mechanism stretches into the through hole.
Furthermore, a light shield is further covered on the light source fixing plate, and the front side, the left side and the right side of the light shield extend downwards to form a light shield.
Further, a winding mechanism for collecting the chip material tape subjected to appearance inspection is further arranged on the device body.
Further, the guide mechanism comprises a panel fixed on the device body, a guide assembly, a heating adjusting assembly and a hot-press packaging assembly are sequentially arranged on the panel along the feeding direction, a material channel for guiding a chip material belt is formed in the middle of the guide assembly, the visual appearance checking mechanism is located above the material channel, and the heating adjusting assembly and the hot-press packaging assembly are symmetrically arranged on two sides of the material channel.
Further, the guide assembly comprises a first guide plate and a second guide plate which are oppositely arranged, the first guide plate is fixedly arranged on the rear side of the panel, an L-shaped supporting block is fixedly connected to the front side of the second guide plate and is slidably supported on a sliding rail through a sliding block, an installation block is fixedly arranged on the front side of the panel, a driving motor is fixedly arranged on the installation block, an output shaft of the driving motor is connected with a screw rod through a coupler, the middle part of the screw rod is rotationally connected with the second guide plate, and the rear end of the screw rod is fixedly connected with the first guide plate.
Further, a plurality of foot cup assemblies are arranged at the bottom of the device body.
The utility model has the remarkable effects that:
1. compared with the prior art, the method comprises the steps of directly sending a chip which is completely burnt and output by a burning device into a winding mechanism through a material guiding mechanism, adjusting the brightness and the wavelength of an inspection light source, illuminating the chip to be inspected by the adjusted inspection light source, photographing the illuminated chip through a visual appearance inspection mechanism capable of focusing to obtain photographing data, comparing the photographing data with pre-stored image comparison data, and if the photographing data is identical with the image comparison data, qualifying the chip to be inspected; if the photographed data are different from the image comparison data, the chip to be detected is not qualified; the device has a simple structure, and can rapidly distinguish whether the chip to be detected is qualified or not through the comparison of the photographing data and the image comparison data, so that the chip to be detected is not required to be checked manually, and the accuracy, the speed and the accuracy of checking whether the chip to be detected is qualified or not are improved;
2. the visual appearance checking mechanism can take photos for chips with different specifications through the connecting mechanism capable of being adjusted up and down and front and back, so that the adaptability is better;
3. compared with the prior art, the device has the advantages of simple structure, more comprehensive inspection, convenient use, no need of manually inspecting objects to be inspected, and improvement of the speed and accuracy of chip inspection.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic structural view of the connection mechanism;
fig. 4 is a front view of the connection structure;
FIG. 5 is a right side view of FIG. 4;
FIG. 6 is a schematic view of the internal structure of the connection mechanism;
FIG. 7 is a schematic view of the structure of the guide mechanism;
fig. 8 is a schematic view of the internal structure of the guide mechanism.
Detailed Description
The following describes the embodiments and working principles of the present utility model in further detail with reference to the drawings.
As shown in fig. 1 and fig. 2, a chip appearance inspection device based on visual identification comprises a device body 1, a material guiding mechanism 2 is arranged on the right side of the top of the device body 1, a feeding hole of the material guiding mechanism 2 is arranged at a discharging hole of a burning device, a visual appearance inspection mechanism 4 is fixedly connected to the device body 1 behind the material guiding mechanism 2 through a connecting mechanism 3, the visual appearance inspection mechanism 4 is suspended above the material guiding mechanism 2 so as to perform appearance inspection on a chip passing through the material guiding mechanism 2, a winding mechanism 4 is arranged on the left side of the top of the device body 1, and a chip material belt output by the burning device is input into the winding mechanism 5 through the material guiding mechanism 2.
Further, a plurality of cup assemblies 6 are also arranged at the bottom of the device body 1.
Referring to fig. 3 to 6, the connection mechanism 3 in this example includes a mounting support plate 31 fixedly connected to the device body 1, a first up-down adjusting plate 32 is slidably mounted on the mounting support plate 31, a front-rear adjusting plate 33 is connected to the top end of the first up-down adjusting plate 32, a second up-down adjusting plate 34 is connected to the front end of the front-rear adjusting plate 33, and the visual appearance inspection mechanism 4 is mounted on the second up-down adjusting plate 34.
Further, the front and rear adjusting plates 33 on both sides of the second upper and lower adjusting plate 34 are connected with a light source connecting plate 35, a light source fixing plate 36 is bridged between the two light source connecting plates 35, an inspection light source 37 is mounted on the lower surface of the light source fixing plate 36, a through hole 38 is formed in the centers of the light source fixing plate 36 and the inspection light source 37, and the lower end of the visual appearance inspection mechanism 4 extends into the through hole 38.
Through the first up-down adjusting plate 32, the front-back adjusting plate 22 and the second up-down adjusting plate 34, the position of the visual appearance checking mechanism 4 can be adjusted, so that the device can be suitable for chip appearance checking of material channels at different positions, and is suitable for chips with different heights and sizes, and the accuracy of appearance checking results is further ensured.
Further, a light shielding cover 39 is further covered on the light source fixing plate 36, and the front side and the left and right sides of the light shielding cover 39 extend downward to form a light shielding plate.
Through the light shield and the light shield formed by the light shield, the light shield of the light source can be well arranged on the chip to be inspected, and meanwhile, the influence of external light on the visual inspection mechanism 4 is avoided, so that the accuracy of the counting result is improved.
Referring to fig. 7-8, the material guiding mechanism 2 includes a panel 21 fixed on the device body 1, a material guiding assembly 22, a heating adjusting assembly 23 and a hot-press packaging assembly 24 are sequentially arranged on the panel 21 along the material conveying direction, a material channel 25 for guiding the chip material strip is formed in the middle of the material guiding assembly 22, the visual appearance checking mechanism 4 is located above the material channel, and the heating adjusting assembly 23 and the hot-press packaging assembly 24 are symmetrically arranged on two sides of the material channel 25.
The material guiding mechanism 2 is used for forming a material channel 25 through which a material belt passes, and enables the material belt to be smooth, and the material belt is output from the material discharging mechanism 2 and is input into the winding mechanism 3 through the material channel 25, so that the visual counting mechanism 6 can accurately shoot chips positioned in the material channel 25, and further accurate counting of the chips is realized based on visual identification. In addition, the material guiding mechanism 2 is provided with a heating adjusting component 23 and a hot-pressing packaging component 24, so that the material guiding mechanism 2 is compatible with a self-sealing and hot-pressing mode, the resealing of the chip packaging material belt can be realized, and the practicability is wider.
Further, the material guiding assembly 22 includes a first guide plate 221 and a second guide plate 222 that are oppositely disposed, the first guide plate 221 is fixedly disposed on the rear side of the panel 21, the material channel 25 is formed between the first guide plate 221 and the second guide plate 222, the front side of the second guide plate 222 is fixedly connected with an L-shaped supporting block 223, the bottom of the L-shaped supporting block 223 is slidably supported on a sliding rail 224 through a sliding block, the front side of the panel 21 is fixedly provided with a mounting block 225, a driving motor 226 is fixed on the mounting block 225, an output shaft of the driving motor 226 is connected with a screw rod 227 through a coupling, the middle part of the screw rod 227 is rotatably connected with the second guide plate 222, and the rear end of the screw rod 227 is fixedly connected with the first guide plate 221.
The above-mentioned guide assembly 22 can drive the second guide plate 222 to move along the slide rail 224 through the driving motor 226 and the screw rod 227, so that the adjustment of the distance between the first guide plate 221 and the second guide plate 222, namely the adjustment of the width of the material channel 25, can be realized, the material strip can be ensured to pass through the material channel 25 smoothly all the time, and the phenomenon of inaccurate counting caused by covering of chips due to the folding of the material strip can be avoided.
Compared with the prior art, the device directly sends the chip which is completely burnt and output by the burning device into the winding mechanism 5 through the material guiding mechanism 2, adjusts the brightness and the wavelength of the inspection light source, illuminates the chip to be inspected by the adjusted inspection light source, photographs the illuminated chip through the visual appearance inspection mechanism 4 with adjustable focus to obtain photographing data, compares the photographing data with pre-stored image contrast data, and if the photographing data is identical with the image contrast data, the chip to be inspected is qualified; if the photographed data are different from the image comparison data, the chip to be detected is not qualified; the device has a simple structure, and can rapidly distinguish whether the chip to be detected is qualified or not through the comparison of the photographing data and the image comparison data, so that the chip to be detected is not required to be checked manually, and the accuracy, the speed and the accuracy of checking whether the chip to be detected is qualified or not are improved; the visual appearance checking mechanism 4 can take photos for chips with different specifications through the connecting mechanism capable of being adjusted up and down and front and back, so that the adaptability is better; compared with the prior art, the device has the advantages of simple structure, more comprehensive inspection, convenient use, no need of manually inspecting objects to be inspected, and improvement of the speed and accuracy of chip inspection.
The technical scheme provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (7)
1. The utility model provides a chip appearance inspection device based on visual identification which characterized in that: the device comprises a device body, wherein a material guiding mechanism is arranged at the top of the device body, a feed inlet of the material guiding mechanism is arranged at a discharge hole of a burning device, a visual appearance checking mechanism is fixedly connected to the device body behind the material guiding mechanism through a connecting mechanism, and the visual appearance checking mechanism is suspended above the material guiding mechanism so as to perform appearance checking on a chip passing through the material guiding mechanism;
the connecting mechanism comprises an installation support plate fixedly connected with the device body, a first upper and lower adjusting plate is slidably installed on the installation support plate, the top end of the first upper and lower adjusting plate is connected with a front and rear adjusting plate, the front end of the front and rear adjusting plate is connected with a second upper and lower adjusting plate, and the visual appearance checking mechanism is installed on the second upper and lower adjusting plate.
2. The visual recognition-based chip appearance inspection apparatus according to claim 1, wherein: the front and rear adjusting plates on two sides of the second upper and lower adjusting plate are connected with light source connecting plates, a light source fixing plate is bridged between the two light source connecting plates, an inspection light source is mounted on the lower surface of the light source fixing plate, a through hole is formed in the center of the light source fixing plate and the center of the inspection light source, and the lower end of the visual appearance inspection mechanism stretches into the through hole.
3. The visual recognition-based chip appearance inspection apparatus according to claim 2, wherein: the light source fixing plate is also covered with a light shield, and the front side, the left side and the right side of the light shield extend downwards to form a light shield.
4. The visual recognition-based chip appearance inspection apparatus according to claim 1, wherein: the device body is also provided with a winding mechanism for receiving the chip material tape subjected to appearance inspection.
5. The visual recognition-based chip appearance inspection apparatus according to claim 1, wherein: the material guiding mechanism comprises a panel fixed on the device body, a material guiding assembly, a heating adjusting assembly and a hot-pressing packaging assembly are sequentially arranged on the panel along the material conveying direction, a material channel for guiding a chip material belt is formed in the middle of the material guiding assembly, the visual appearance checking mechanism is located above the material channel, and the heating adjusting assembly and the hot-pressing packaging assembly are symmetrically arranged on two sides of the material channel.
6. The visual recognition-based chip appearance inspection apparatus of claim 5, wherein: the guide assembly comprises a first guide plate and a second guide plate which are oppositely arranged, the first guide plate is fixedly arranged on the rear side of the panel, a material channel is formed between the first guide plate and the second guide plate, an L-shaped supporting block is fixedly connected to the front side of the second guide plate, the bottom of the L-shaped supporting block is slidably supported on a sliding rail through a sliding block, a mounting block is fixedly arranged on the front side of the panel, a driving motor is fixedly arranged on the mounting block, an output shaft of the driving motor is connected with a screw rod through a coupler, the middle part of the screw rod is rotationally connected with the second guide plate, and the rear end of the screw rod is fixedly connected with the first guide plate.
7. The visual recognition-based chip appearance inspection apparatus according to claim 1, wherein: a plurality of foot cup assemblies are arranged at the bottom of the device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321007572.3U CN220019401U (en) | 2023-04-28 | 2023-04-28 | Chip appearance inspection device based on visual recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321007572.3U CN220019401U (en) | 2023-04-28 | 2023-04-28 | Chip appearance inspection device based on visual recognition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220019401U true CN220019401U (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321007572.3U Active CN220019401U (en) | 2023-04-28 | 2023-04-28 | Chip appearance inspection device based on visual recognition |
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| Country | Link |
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| CN (1) | CN220019401U (en) |
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2023
- 2023-04-28 CN CN202321007572.3U patent/CN220019401U/en active Active
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