Circuit board plug hole verification module
By using the plug hole verification module in online circuit board printing production, the printing effect of the plug hole is detected and the process is adjusted, which solves the problem of difficult control of printing effects in the prior art, improves production efficiency and reduces costs.
Patent Information
- Application Number
- CN202421632003.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the welding-proof printing process of circuit boards, it is difficult for the prior art to effectively control the printing effect of plug holes, resulting in the need for backwashing and reprinting, which affects production efficiency.
It provides a circuit board plug hole verification module, including a multi-type through hole group running in the thickness direction on the module board, which simulates plug holes on the circuit board, and is used to first detect the printing effect of plug holes during printing and production, and adjust the printing process.
By printing the verification module first, it can timely detect the fullness of the full plug hole and the light transmittance of the semi plug hole, adjust the printing process, avoid backwashing and reprinting, improve production efficiency and reduce costs.
Smart Images
Figure CN222926628U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of via filling of printed circuit boards, and more specifically, to a via filling verification module for printed circuit boards. Background Art
[0002] During the solder mask printing process of printed circuit boards, since there are two via filling methods designed in the printed circuit board, namely full via filling and partial via filling, the green oil fullness of the via filling will be controlled for full via filling, and the light transmittance after the green oil via filling will be controlled for partial via filling. However, when designing these holes, there are different diameters, and it is difficult to control the printing effect.
[0003] In the prior art, usually a single printing screen is used for printing together. After printing, the fullness of the full via filling and the light transmittance of the partial via filling on the printed circuit board are observed to see if they are qualified. If they are unqualified, the printed circuit board needs to be dewashed and reprinted. The dewashing process is very likely to cause quality abnormalities and affect the production efficiency of the printed circuit board. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above-mentioned defects existing in the prior art, and provide a via filling verification module for printed circuit boards, which can print the via filling verification module of the printed circuit board first during printing production, adjust the printing process according to the printing result, and avoid dewashing after printing the printed circuit board, thus affecting the production efficiency.
[0005] To achieve the above purpose, the utility model provides a via filling verification module for printed circuit boards, including a module board. Through-hole groups penetrating the module board along the first direction are arranged on the module board, and the first direction is the thickness direction of the module board; the through-hole groups include through-holes of multiple models, and the through-hole models are the same as those on the to-be-tested printed circuit board.
[0006] Preferably, the through-holes include full via filling holes and / or partial via filling holes.
[0007] Preferably, multiple models of full via filling holes form a full via filling hole group, and the number of groups of the full via filling hole group is not less than 1 group; multiple models of partial via filling holes form a partial via filling hole group, and the number of groups of the partial via filling hole group is not less than 1 group.
[0008] Preferably, the aperture of the full via filling hole is R1, and 0.2 mm ≤ R1 ≤ 0.5 mm.
[0009] Preferably, the aperture of the partial via filling hole is R2, and 0.2 mm ≤ R2 ≤ 0.5 mm.
[0010] Preferably, the length of the module board is 450 mm to 600 mm, and the width of the module board is 10 mm to 15 mm.
[0011] Preferably, the module board is the same as the to-be-tested printed circuit board.
[0012] Preferably, the half-plugged hole group and the full-plugged hole group are arranged alternately and / or sequentially in the second direction, and the second direction is the width direction of the module board.
[0013] Preferably, the half-plugged holes are arranged sequentially in the third direction according to the hole diameter size, and the third direction is the length direction of the module board.
[0014] Preferably, the full-plugged holes are arranged sequentially in the third direction according to the hole diameter size.
[0015] Implementing the embodiments of the present invention will have the following beneficial effects:
[0016] The present invention provides a circuit board plug hole verification module, including a module board. There is a through-hole group penetrating the module board along the first direction on the module board, and the first direction is the thickness direction of the module board; the through-hole group includes through-holes of multiple models, and the through-hole models are the same as those on the circuit board to be tested, simulating the actual environment of the circuit board; during printing production, first print the position of this module, so that the fullness of the full-plugged holes with different hole diameters and the light transmittance of the half-plugged holes can be detected first. According to the printing effect, the printing process such as the screen printing plate and the blade angle of the printing machine can be adjusted in time, which can effectively avoid the quality problems brought by the original direct production, and the module can also be sliced for intuitive analysis, which is convenient for observation, improves production efficiency and reduces costs at the same time. Description of the Drawings
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 is a structural diagram of a circuit board plug hole verification module provided by the present invention;
[0019] Figure 2 is another structural diagram of a circuit board plug hole verification module provided by the present invention;
[0020] Figure 3 is another structural diagram of a circuit board plug hole verification module provided by the present invention;
[0021] Figure 4 is another structural diagram of a circuit board plug hole verification module provided by the present invention;
[0022] Wherein:
[0023] 1 - module board, 2 - through-hole group, 3 - half-plugged hole group, 31 - half-plugged hole, 4 - full-plugged hole group, 41 - full-plugged hole, y - second direction, x - third direction. Specific embodiments
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] Refer to Figures 1-4 , a via plugging verification module for a circuit board provided by the present utility model includes a module board 1. A via group 2 penetrating the module board 1 in the first direction is provided on the module board 1, and the first direction is the thickness direction of the module board 1. The via group 2 includes vias 21 of multiple models, and the models of the vias 21 are the same as those of the vias 21 on the circuit board to be tested.
[0026] Specifically, a via plugging verification module for a circuit board provided by the present utility model includes a module board 1. A via group 2 penetrating the module board 1 in the first direction is provided on the module board 1, and the first direction is the thickness direction of the module board 1. The via group 2 includes vias 21 of multiple models, which is convenient for verifying the printing effects of vias 21 of different models during use and improving the practicability. The models of the vias 21 are the same as those of the vias 21 on the circuit board to be tested, reducing the difference between the verification module and the circuit board to be tested, improving the accuracy of the verification result, and enhancing the verification efficiency.
[0027] It should be noted that there may be multiple circuit boards to be tested. The via plugging verification module for a circuit board provided by the present utility model is applicable to the existing circuit boards on the market. The models of the vias 21 correspond to all the models of the vias 21 set on the existing circuit boards on the market, which is convenient for detecting the fullness of the fully plugged vias 41 and the light transmittance of the half-plugged vias 31 after printing green oil for vias 21 of different apertures in different production environments, timely adjusting the printing process, improving the production efficiency of the circuit board, and enhancing the practicability and applicability of the via plugging verification module for a circuit board.
[0028] It can be understood that a via plugging verification module for a circuit board provided by the present utility model includes a module board 1. A via group 2 penetrating the module board 1 in the first direction is provided on the module board 1, and the first direction is the thickness direction of the module board 1. The via group 2 includes vias 21 of multiple models, and the models of the vias 21 are the same as those of the vias 21 on the circuit board to be tested, simulating the actual environment of the circuit board. During printing production, first print the position of this module, so that the fullness of the fully plugged vias 41 and the light transmittance of the half-plugged vias 31 of different apertures can be detected first. According to the printing effect, the printing process such as the screen and the angle of the printing machine blade can be adjusted in time, which can effectively avoid the quality problems caused by direct production before, and can also perform intuitive analysis on the sliced module of this module, which is convenient for observation, improving the production efficiency of the circuit board and reducing the cost at the same time.
[0029] In some alternative embodiments, referring to Figure 1 , the via hole 21 includes a full-plug hole 41 and / or a half-plug hole 31.
[0030] It should be noted that in the production of printed circuit boards during the solder mask printing process, since there are two ways to plug holes in the circuit, namely full-plug and half-plug, that is, they are divided into a full-plug hole 41 and a half-plug hole 31. The full-plug hole 41 is to print the green oil into the via hole 21, generally brushing it in from both sides. Therefore, the full-plug hole 41 has certain requirements for the fullness of the green oil; the half-plug hole 31 is to brush the green oil in part, usually brushing it in from one side. Therefore, the half-plug hole 31 has certain requirements for the light transmittance of the green oil. In order to more comprehensively detect the printing process during the printing process and facilitate the adjustment of the printing process according to the different effects of the full-plug hole 41 and the half-plug hole 31.
[0031] In some alternative embodiments, referring to Figures 1-4 , multiple models of full-plug holes 41 form a full-plug hole group 4, and the number of groups of the full-plug hole group 4 is not less than 1 group; multiple models of half-plug holes 31 form a half-plug hole group 3, and the number of groups of the half-plug hole group 3 is not less than 1 group.
[0032] It should be noted that the full-plug holes 41 in the printed circuit board have different hole diameters. Each full-plug hole group 4 set by the via hole plug verification module of the present utility model includes all models (hole diameters) of the full-plug holes 41 in the existing printed circuit board; the half-plug holes 31 also include half-plug holes 31 with different hole diameters. Each half-plug hole group 3 set by the via hole plug verification module of the present utility model includes all models (hole diameters) of the half-plug holes 31 in the existing printed circuit board, further improving the comprehensiveness of the verification module for detecting the printing effect.
[0033] In some alternative embodiments, the hole diameter of the full-plug hole 41 is R1, and 0.2 mm ≤ R1 ≤ 0.5 mm.
[0034] Optionally, the hole diameter R1 of the full-plug hole 41 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, and 0.5 mm, including but not limited to all different hole diameters of the full-plug holes 41 available on the market.
[0035] Optionally, the hole diameter R1 of the full-plug hole 41 can also be 0.2 mm ≤ R1 ≤ 0.35 mm, 0.3 mm ≤ R1 ≤ 0.4 mm, 0.38 mm ≤ R1 ≤ 0.45 mm, 0.4 mm ≤ R1 ≤ 0.5 mm.
[0036] In some alternative embodiments, the hole diameter of the half-plug hole 31 is R2, and 0.2 mm ≤ R2 ≤ 0.5 mm.
[0037] Optionally, the aperture R2 of the half-plug hole 31 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, and 0.5 mm, including but not limited to all different apertures of the half-plug holes 31 available on the market.
[0038] Optionally, the aperture R2 of the half-plug hole 31 can also be 0.2 mm ≤ R2 ≤ 0.35 mm, 0.3 mm ≤ R2 ≤ 0.4 mm, 0.38 mm ≤ R2 ≤ 0.45 mm, 0.4 mm ≤ R2 ≤ 0.5 mm.
[0039] In some alternative embodiments, the length of the module board 1 is 450 mm to 600 mm, and the width of the module board 1 is 10 mm to 15 mm.
[0040] Optionally, the length of the module board 1 can be 450 mm, 455 mm, 460 mm, 464 mm, 468 mm, 470 mm, 475 mm, 480 mm, 484 mm, 490 mm, 500 mm, 510 mm, 515 mm, 520 mm, 526 mm, 530 mm, 538 mm, 540 mm, 547 mm, 550 mm, 554 mm, 560 mm, 567 mm, 573 mm, 578 mm, 580 mm, 583 mm, 590 mm, 597 mm, and 600 mm. When the length of the module board 1 is less than 450 mm, the module board 1 is too short, and the space for arranging the through-hole group 2 is limited, which is likely to affect the result of the verification process; when the length of the module board 1 is greater than 600 mm, the module board 1 is too long, and the space is easily wasted after the through-hole group 2 is arranged, increasing unnecessary costs; therefore, when the length of the module board 1 is 450 mm to 600 mm, the length of the module board 1 is appropriate, which neither affects the arrangement of the through-hole group 2 nor increases the cost.
[0041] Optionally, the width of the module board 1 can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, and 15 mm. When the width of the module board 1 is less than 10 mm, the arrangement space of the half-plug hole group 3 and the full-plug hole group 4 is limited along the second direction y. When the number of the half-plug hole group 3 and the full-plug hole group 4 arranged is small, it may affect the verification and detection effect; when the width of the module board 1 is greater than 15 mm, the space is easily wasted after the through-hole group 2 is arranged, increasing unnecessary costs and causing waste; therefore, when the width of the module board 1 is 10 mm - 15 mm, the half-plug hole group 3 and the full-plug hole group 4 are arranged evenly along the second direction y, and a sufficient number of groups can be set for verifying and detecting the printing effect.
[0042] In some alternative embodiments, the module board 1 is the same as the circuit board to be tested.
[0043] It can be understood that the module board 1 has the same material, size and other parameters as the circuit board to be tested, and simulates the plug-hole printing process in the real circuit board production process as much as possible, further improving the detection accuracy and the credibility of the effect of the circuit board plug-hole verification module, and enhancing the practicability of the verification module.
[0044] In some alternative embodiments, referring to Figures 1-4 , along the second direction y, the half-plug-hole group 3 and the full-plug-hole group 4 are arranged alternately and / or sequentially, and the second direction y is the width direction of the module board 1.
[0045] Referring to Figures 1-2 , along the second direction y, the half-plug-hole group 3 and the full-plug-hole group 4 are arranged alternately. When in use, it is convenient to clearly observe the printing effect, further verify the circuit board printing process, and improve the accuracy; referring to Figure 3 , along the second direction y, the half-plug-hole group 3 and the full-plug-hole group 4 are arranged sequentially. When in use, the printing uniformity can be accurately detected, further reducing the error of the detection result, improving the qualified rate of the printing process after modifying the parameters according to the printing effect, and enhancing the circuit board production efficiency; referring to Figure 4 , along the second direction y, the half-plug-hole group 3 and the full-plug-hole group 4 are arranged alternately and sequentially. When in use, the printing uniformity can be accurately detected, which is convenient for observation, further reducing the error of the detection result, improving the qualified rate of the printing process after modifying the parameters according to the printing effect, and enhancing the circuit board production efficiency.
[0046] In some alternative embodiments, referring to Figures 1-4 , along the third direction x, the half-plug-holes 31 are arranged sequentially according to the hole diameter size, and the third direction x is the length direction of the module board 1.
[0047] It can be understood that along the third direction x, the half-plug-holes 31 are arranged sequentially according to the hole diameter size, which is convenient for clearly and accurately observing the printing effect of the half-plug-holes 31 with different hole diameters when in use, and further improving the printing process.
[0048] In some alternative embodiments, referring to Figures 1-4 , the full-plug-holes 41 are arranged sequentially along the third direction x according to the hole diameter size.
[0049] It can be understood that along the third direction x, the full-plug-holes 41 are arranged sequentially according to the hole diameter size, which is convenient for clearly and accurately observing the printing effect of the full-plug-holes 41 with different hole diameters when in use, and can further improve the printing process.
[0050] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.
Claims
1. A circuit board plugging verification module, characterized in that: It comprises a module board, on which is provided a through hole group penetrating the module board along a first direction, wherein the first direction is the thickness direction of the module board; the through hole group comprises through holes of multiple models, and the through holes are the same in model as the through holes on the circuit board to be tested.
2. The circuit board plugging verification module according to claim 1, characterized in that: The through hole includes a fully plugged hole and / or a half-plugged hole.
3. The circuit board plugging verification module according to claim 2, characterized in that: The fully plugged holes of multiple models constitute a fully plugged hole group, and the number of groups in the fully plugged hole group is not less than 1 group; the half-plugged holes of multiple models constitute a half-plugged hole group, and the number of groups in the half-plugged hole group is not less than 1 group.
4. The circuit board plugging verification module according to claim 2, characterized in that: The aperture of the fully plugged hole is R1, 0.2mm≤R1≤0.5mm.
5. The circuit board plugging verification module according to claim 2, characterized in that: The aperture of the semi-plug hole is R2, 0.2mm≤R2≤0.5mm.
6. The circuit board plugging verification module according to claim 1, characterized in that: The length of the module board is 450 mm to 600 mm, and the width of the module board is 10 mm to 15 mm.
7. The circuit board plugging verification module according to claim 1, characterized in that: The module board is the same as the circuit board to be tested.
8. The circuit board plugging verification module according to claim 3, characterized in that: The half-plugged hole groups and the full-plugged hole groups are arranged alternately and / or sequentially along a second direction, and the second direction is a width direction of the module board.
9. The circuit board plugging verification module according to claim 3, characterized in that: Along a third direction, the semi-plug holes are arranged in sequence according to hole diameters, and the third direction is the length direction of the module board.
10. The circuit board plugging verification module according to claim 3, characterized in that: Along a third direction, the fully plugged holes are arranged in sequence according to hole diameters, and the third direction is the length direction of the module board.