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Vacuum hole plugging method

A plug hole and vacuum technology, which is used in the formation of electrical connection of printed components, secondary processing of printed circuits, electrical components, etc., can solve the problems of plugging material bubbles, not filling the plug holes, and poor plugging effect.

Pending Publication Date: 2021-01-05
SHENZHEN CAREST TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the non-vacuum method is used to plug the hole, and since the plugging material such as ink and resin is filled into the hole by a scraper, it is easy to cause the plugging material to be difficult to completely fill the plugging hole, and it is easy to appear. There are air bubbles inside the plugging material or the inside of the plugging hole is not filled, resulting in poor plugging effect

Method used

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] refer to figure 1 and figure 2 , is a vacuum plugging method disclosed by the present invention, comprising:

[0039] S1: Seal the lower ends of all the plug holes 2; stick the tape 3 on the lower surface of the plate 1, so that the tape 3 seals the lower ends of all the plug holes 2, and when the tape 3 is pasted, the edge of the tape 3 is completely attached to the surface of the plate 1 , The adhesive tape 3 is preferably a polyimide gold finger adhesive tape 3 .

[0040] S2: Seal the upper end of the plug hole 2 that does not need to be operated on the plug hole 2; select the plug hole 2 that does not need to be operated on the plug hole 2, and make a corresponding shape according to the shape of the plug hole 2 through a laser cutting machine or a three-axis numerical control platform Adhesive tape 3, paste the tape 3 on the board 1, the tape ...

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Abstract

The invention relates to the field of hole plugging processes, and discloses a vacuum hole plugging method which comprises the following steps: S1, the lower ends of all plug holes are sealed; S2, theupper ends of the plug holes which do not need to be plugged are sealed; S3, the surface of a plate is coated with a hole plugging material, and the hole plugging material is made to fill the plug holes; S4, vacuumizing operation is carried out, air in the hole plugging material is made to leave the hole plugging material, bubbles are formed on the surface of the hole plugging material, pressurerising operation is carried out, and the residual bubbles on the surface of the hole plugging material are crushed; S5, the vacuumizing operation and the boosting operation are repeated until no macroscopic bubbles are generated; S6, the redundant hole plugging material is removed and the sealing of the upper ends of the plug holes are removed; and S7, the hole plugging material is cured, and sealing of the lower end of the plugged hole is relieved. The hole plugging effect is improved.

Description

technical field [0001] The invention relates to the technical field of plugging technology, in particular to a vacuum plugging method. Background technique [0002] At present, the plug hole technology has been widely used, especially in the production process of printed circuit board (PCB), it is necessary to realize the conduction and insulation functions of the hole through the plug hole. [0003] The existing plugging method generally adopts the traditional screen printing method to plug the holes. Under the support of the screen printing backing plate, the screen and the PCB are bonded together, and the plugging materials such as ink and resin are filled into the holes by a scraper. [0004] The above-mentioned existing technical solutions have the following defects: the non-vacuum method is used to plug the hole, and since the plugging material such as ink and resin is filled into the hole by a scraper, it is easy to cause the plugging material to be difficult to compl...

Claims

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Application Information

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IPC IPC(8): H05K3/00
CPCH05K3/0094H05K2203/085H05K2201/0959H05K2201/09563H05K3/00H05K3/12H05K3/22H05K3/42
Inventor 李远航万明明
Owner SHENZHEN CAREST TECH CO LTD
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