CN212211484U - Anti-deformation resin taphole silk screen printing base plate - Google Patents
Anti-deformation resin taphole silk screen printing base plate Download PDFInfo
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- CN212211484U CN212211484U CN202020695416.0U CN202020695416U CN212211484U CN 212211484 U CN212211484 U CN 212211484U CN 202020695416 U CN202020695416 U CN 202020695416U CN 212211484 U CN212211484 U CN 212211484U
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Abstract
The utility model relates to an instrument is used in silk road version silk screen printing, especially relates to a shape resin consent silk screen printing backing plate of preapring for an unfavorable turn of events, including the backing plate main part that is used for supporting the circuit board, be equipped with the air guide hole in the backing plate main part, still be provided with intensive region and non-intensive region in the backing plate main part, be equipped with in the non-intensive region the air guide hole, be equipped with blind hole and step hole on the intensive region, the interval between hole and the hole is less than the region that 8 mil's position corresponds to the backing plate main part on the circuit board. The drilling depth of the plug holes in the plug hole dense area is 2/3 of the thickness of the pad body. The blind holes and the step holes are formed in the dense area of the base plate main body, the problem that the supporting force is poor due to structural arching or deformation caused by the hollow area of the base plate can be solved through the blind holes, the step holes can play a role in guiding air of the silk-screen base plate, and when the scraper scrapes the conducting holes of the circuit board filled with resin, the situation that the plug holes are not full is effectively avoided.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to a silk screen printing tool, in particular to an anti-deformation resin taphole silk screen printing base plate.
[ background of the invention ]
With the coming of the 5G era, the structure of the circuit board is further developed towards refinement, the application of the process flow of resin hole plugging in the PCB industry is more and more extensive, and the process flow is particularly favored on products with high layer number and large board thickness. It is desirable to use resin plugs to solve a number of problems that cannot be solved by using green oil plugs or press-fit resin plugs.
The resin hole plugging is usually performed by screen printing, that is, a product is supported on a screen printing backing plate, a screen plate is attached to the upper surface of the product, and hole plugging resin enters a through hole of the product through a screen under the scraping of a scraper so as to fill the resin in the product hole. The plug hole on the base plate is drilled by a mechanical drilling machine, and the base plate plays a role in supporting the product and plugging the resin hole for ventilation in the process of plugging the resin into the via hole of the product.
However, for the region with dense plug holes, the region becomes hollow after the drilling process is completed, and the backing plate is easy to bow or deform, so that the problem of poor supporting force is caused, and the resin screen printing plug holes at the position are not full.
[ summary of the invention ]
In order to solve the problem that the existing resin taphole screen printing base plate is easy to bow or deform in an intensive area, and the supporting force is poor, so that the tapholes are not full, the application provides the anti-deformation resin taphole screen printing base plate.
The technical scheme adopted for solving the technical problem is as follows:
anti-deformation resin consent silk screen printing backing plate, including the backing plate main part that is used for supporting the circuit board, be equipped with the air guide hole in the backing plate main part, still be provided with intensive region and non-intensive region in the backing plate main part, be equipped with in the non-intensive region the air guide hole, be equipped with blind hole and step hole on the intensive region, the position that the interval between hole and the hole is less than 8 mils on the circuit board corresponds to the region of backing plate main part. The drilling depth of the plug holes in the plug hole dense area is 2/3 of the thickness of the pad body.
The depth of the blind hole is greater than 1/3 and less than 3/4 of the thickness of the pad body.
The depth of the blind hole is 2/3 the thickness of the pad body.
The upper aperture of the stepped hole is larger than the lower aperture of the stepped hole, and the aperture of the stepped hole is larger than that of the air guide hole.
The length of the side edge of the base plate main body is 3-5cm longer than that of the side edge of the circuit board.
The blind holes and the stepped holes of the dense area are concentrated in the middle of the pad body.
Compared with the prior art, the beneficial effect of the anti-deformation resin consent silk screen printing backing plate of this application lies in, is equipped with blind hole and step hole on the intensive region of this application backing plate main part, and the blind hole can improve the structure bow that causes because of backing plate fretwork is regional to be played or warp and arouse the poor problem of holding power, and the step hole can play the effect of silk screen printing backing plate air guide, scrapes when the conducting hole that the resin filled into the circuit board at the scraper, effectively avoids the consent not full.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a deformation-preventing resin plug hole screen printing backing plate of the present application;
fig. 2 is a sectional view taken along a-a of fig. 1.
[ detailed description ] embodiments
The present application will be further described with reference to the following drawings and specific embodiments.
Please refer to fig. 1 and 2, the anti-deformation resin plug hole screen printing pad comprises a pad body 1 for supporting a circuit board, wherein the pad body 1 is provided with air guide holes 2, the pad body is further provided with a dense area and a non-dense area, the non-dense area is provided with the air guide holes 2, the dense area is provided with blind holes 3 and step holes 4, and the position where the distance between the holes on the circuit board is less than 8mil corresponds to the area of the pad body 1.
This application embodiment is equipped with blind hole and step hole on the intensive region of backing plate main part, and the blind hole can be improved and bow or warp the poor problem of arousing the holding power because of the structure that the backing plate fretwork region caused, and the step hole can play the effect of silk screen printing backing plate air guide, scrapes when the conducting hole that the resin filled into the circuit board at the scraper, effectively avoids the consent not full.
Further, the depth of the blind hole 3 is greater than 1/3 of the thickness of the pad body 1 and less than 3/4 of the thickness of the pad body 1. In this embodiment, the depth of the blind hole 3 is 2/3 of the thickness of the pad body 1. The supporting force of the backing plate main body can be enhanced, and the problem that the supporting force is poor due to deformation caused by hollow-out of the dense area of the backing plate main body is solved. The base plate main body is made of phenolic resin, and the length of the side edge of the base plate main body is 3-5cm longer than that of the side edge of the circuit board. So that the edge of the circuit board can obtain sufficient bearing force. The upper aperture of the step hole 4 is larger than the lower aperture and the aperture of the step hole 4 is larger than the aperture of the air guide hole.
The blind holes 3 and the stepped holes 4 of the dense area are concentrated in the middle of the pad main body 1. The depth of the blind hole in the plug hole dense area is designed to be 2/3 of the thickness of the backing plate, so that the backing plate can be effectively prevented from deforming, and the step hole can play a role in supporting air guide.
To sum up, the beneficial effect of the resin consent silk screen printing backing plate of preapring for an unfavorable turn of events of this application lies in, is equipped with blind hole and step hole on the intensive region of this application backing plate main part, and the blind hole can improve the structure bow that causes because of backing plate fretwork region and play or warp and arouse the poor problem of holding power, and the step hole can play the effect of silk screen printing backing plate air guide, scrapes the resin when filling the conducting hole of income circuit board at the scraper, effectively avoids the consent not full.
The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not intended to limit the scope of the present application, which is within the scope of the present application, except that the same or similar principles and basic structures as the present application may be used.
Claims (6)
1. Anti-deformation resin consent silk screen printing backing plate, including backing plate main part (1) that is used for supporting the circuit board, its characterized in that: be equipped with air guide hole (2) in backing plate main part (1), still be provided with intensive region and non-intensive region in the backing plate main part, be equipped with on the non-intensive region air guide hole (2), be equipped with blind hole (3) and step hole (4) on the intensive region, the position that the interval between hole and the hole is less than 8 mils on the circuit board is corresponding to the region of backing plate main part (1).
2. The anti-deformation resin plug hole screen printing backing plate of claim 1, which is characterized in that: the depth of the blind hole (3) is greater than 1/3 of the thickness of the pad main body (1) and less than 3/4 of the thickness of the pad main body (1).
3. The anti-deformation resin plug hole screen printing backing plate of claim 2, wherein: the depth of the blind hole (3) is 2/3 of the thickness of the pad main body (1).
4. The anti-deformation resin plug hole screen printing backing plate of claim 1, which is characterized in that: the upper aperture of the step hole (4) is larger than the lower aperture of the step hole, and the aperture of the step hole (4) is larger than that of the air guide hole.
5. The anti-deformation resin plug hole screen printing backing plate of claim 1, which is characterized in that: the length of the side edge of the base plate main body (1) is 3-5cm longer than that of the side edge of the circuit board.
6. The anti-deformation resin plug hole screen printing backing plate of claim 1, which is characterized in that: the blind holes (3) and the step holes (4) in the dense area are concentrated in the middle of the base plate main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020695416.0U CN212211484U (en) | 2020-04-29 | 2020-04-29 | Anti-deformation resin taphole silk screen printing base plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020695416.0U CN212211484U (en) | 2020-04-29 | 2020-04-29 | Anti-deformation resin taphole silk screen printing base plate |
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| CN212211484U true CN212211484U (en) | 2020-12-22 |
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| CN202020695416.0U Active CN212211484U (en) | 2020-04-29 | 2020-04-29 | Anti-deformation resin taphole silk screen printing base plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163606A (en) * | 2021-04-25 | 2021-07-23 | 东莞市五株电子科技有限公司 | Resin hole plugging method for double-sided back drilling plate |
| CN113194609A (en) * | 2021-03-17 | 2021-07-30 | 宏华胜精密电子(烟台)有限公司 | PCB (printed circuit board) welding-prevention plug hole base and manufacturing method thereof |
| CN114393910A (en) * | 2021-12-31 | 2022-04-26 | 赣州市超跃科技有限公司 | Double-sided PCB printing hole plugging prevention printing device and method |
-
2020
- 2020-04-29 CN CN202020695416.0U patent/CN212211484U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113194609A (en) * | 2021-03-17 | 2021-07-30 | 宏华胜精密电子(烟台)有限公司 | PCB (printed circuit board) welding-prevention plug hole base and manufacturing method thereof |
| CN113163606A (en) * | 2021-04-25 | 2021-07-23 | 东莞市五株电子科技有限公司 | Resin hole plugging method for double-sided back drilling plate |
| CN113163606B (en) * | 2021-04-25 | 2023-10-27 | 东莞市五株电子科技有限公司 | Resin hole plugging method for double-sided back drilling plate |
| CN114393910A (en) * | 2021-12-31 | 2022-04-26 | 赣州市超跃科技有限公司 | Double-sided PCB printing hole plugging prevention printing device and method |
| CN114393910B (en) * | 2021-12-31 | 2023-02-28 | 赣州市超跃科技有限公司 | Double-sided PCB printing hole plugging prevention printing device and method |
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