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Method for preventing oil from bleeding from solder resist ink plug hole

A solder mask ink and plug hole technology, which is applied in the formation of electrical connection of printed components, secondary treatment of printed circuits, and application of non-metallic protective layers, etc. Effect

Active Publication Date: 2015-02-18
星河电路(福建)有限公司 +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] For this reason, the object of the present invention is to provide a kind of method that prevents the plug hole of solder resist ink from leaking oil, to solve the problem that current window pads, double-sided window pads and PCB boards without windows are prone to plug hole oil leakage

Method used

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  • Method for preventing oil from bleeding from solder resist ink plug hole

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see figure 1 as shown, figure 1 It is a flow chart of the method for preventing oil from leaking out of plug holes of solder resist ink in the present invention. The invention provides a method for preventing oil leakage from plug holes of solder resist ink, which is mainly used to solve the problem that oil leakage easily occurs from plug holes in current window pads, double-sided window pads and PCB boards without windows.

[0025] Wherein the present invention prevents the method for oil from plugging holes of solder resist ink to specifically comprise the following steps:

[0026] S1....

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Abstract

The invention discloses a method for preventing oil from bleeding from a solder resist ink plug hole. The method comprises the following steps of: manufacturing single-surface and double-side windowing via hole plugging aluminum sheets and non-windowing plug hole aluminum sheets; plugging single-surface and double-side windowing via holes of a PCB (Printed Circuit Board); when the single-surface windowing via hole is plugged, displaying exposed point films on one surface where the windowing via holes are not windowed; and then plugging non-windowing via holes. According to the method disclosed by the invention, solder resist ink is printed after the plugging is carried out in graded times, so that the problem of oil bleeding in the plugging process of single-side windowing, double-side windowing and non-windowing PCB is effectively solved; and the quality and service performance of products are improved.

Description

technical field [0001] The invention belongs to the technical field of printed circuit board production, and in particular relates to a method for preventing oil leakage from plug holes of solder resist ink. Background technique [0002] With the continuous updating of electronic product technology, the structure and installation method of electronic chips are also constantly improving and changing. Its development is basically from components with plug-in feet to highly dense integration of solder joints arranged in a ball matrix. The high integration of circuit modules and electronic products puts forward higher requirements for the production and quality of PCB boards. [0003] At present, plug holes are needed in the process of PCB board manufacturing to achieve the purpose of solder resistance. Plug holes refer to the process of filling the through holes of PCB boards with green oil (or solder resist ink). However, there are single-side window pads, double-side window ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/40H05K3/28
Inventor 谭年明陈玲温沧
Owner 星河电路(福建)有限公司
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