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Printed circuit board screen plugging method

A technology of printed circuit boards and printed circuits, which is applied in the direction of electrical connection formation of printed components, etc., which can solve the problems of high production cost, low efficiency, and easy occurrence of foaming and cavitation

Active Publication Date: 2016-03-02
MEIZHOU ZHIHAO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the solder resist plug holes for via holes are usually made by aluminum sheet plug hole technology, which is prone to foaming and cavitation, and the production cost is high and the efficiency is low, which is difficult to meet the demand

Method used

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  • Printed circuit board screen plugging method
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  • Printed circuit board screen plugging method

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see figure 1 , is a flow diagram of a preferred embodiment of the printed circuit board screen plugging method of the present invention, and the embodiment includes:

[0023] Step S1, determining the plug hole diameter and plug hole position after compensation. see figure 2 , is a schematic diagram of the hole diameter of the plug hole in this embodiment. like figure 2 As shown, the aperture diameter of a via hole 20 of the printed circuit board plus the compensation amount M to obtain the compensated pl...

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PUM

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Abstract

The invention provides a plug hole method of printed circuit board silk screen, including determining the plug hole diameter and plug hole position after compensation; making and generating plug hole film according to the plug hole diameter and plug hole position after compensation; providing silk Screen stencil and coat photosensitive paste; use plug film to expose screen stencil; rinse exposed screen stencil and form plug hole stencil; use plug hole stencil to plug holes on printed circuit board; printed circuit Plate plug holes heat cured. Adopting the invention can ensure higher production efficiency, higher product quality and lower cost.

Description

technical field [0001] The invention relates to circuit board technology, in particular to a method for plugging holes with silk screen on a printed circuit (PCB, Printed Circuit Board) board. Background technique [0002] With the popularization and wide application of electronic products, the production and manufacturing technology of printed circuit boards are constantly updated and developed. In order to meet product requirements, PCB boards have been developed from single-layer boards to the design and application of double-layer boards or multi-layer boards, and there are via holes (ViaHole) between the multi-layer boards for the connection between layers. performance on. [0003] With the development of electronic products in the direction of "light, thin, short and small", the density of PCB is also getting higher and higher. In order to prevent short circuit and virtual soldering caused by tin penetrating from the via hole to the component surface during wave sold...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/40
Inventor 戴晖刘喜科林人道
Owner MEIZHOU ZHIHAO ELECTRONICS TECH
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