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Method for processing circuit board

A processing method and circuit board technology, applied in the direction of printed circuit, printed circuit manufacturing, electrical components, etc., can solve problems such as poor positioning, affecting processing, and changing the electrical properties of holes, so as to eliminate hole burrs and reduce cutting impact stress. Effect

Inactive Publication Date: 2012-06-20
SHENZHEN WUZHU TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when cutting circuit boards, cutting tools, such as cutters, will leave more burrs on the inner walls of the holes when they travel to these holes, which will affect product insertion and even subsequent processing, such as poor positioning, Change the electrical properties of holes, etc.

Method used

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  • Method for processing circuit board
  • Method for processing circuit board

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] Circuit boards can be divided into single-panel, double-panel and multi-layer boards according to their wiring levels. A single-sided PCB is a printed board with conductive patterns on only one side. It is generally made of phenolic paper-based copper clad laminates, and epoxy paper-based or epoxy glass cloth copper clad laminates are often used.

[0017] The printed graphics of the single-sided panel are relatively simple. Generally, the screen printing method is used to transfer the graphics, and then the printed board is etched out, and some are produced by photochemical methods.

[0018] A double-sided circuit board is a printed board with conductive patterns on both sides. Obviously, the area of ​​the double-sided panel is twice as large as that of the single-sided panel, and it is suitable for more complex circuits than the sing...

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PUM

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Abstract

The invention relates to a method for processing a circuit board. The method comprises the following steps: supplying a base plate on which a circuit is arranged; forming a plurality of holes in the base plate; supplying filling materials and utilizing the filling materials to tightly and compactly fill the holes; supplying a cutting tool for cutting the circuit board; and removing the filling materials from the holes. Compared with the prior art, the method for processing the circuit board provided by the invention has the advantages that the cutting impact stresses on side walls of the holes are reduced under the inhibition effect of the filling materials in the holes when the holes are cut by the cutting tool, and the burrs are prevented from being generated during the cutting process.

Description

technical field [0001] The invention relates to a functional device for realizing electrical connection between components and signal processing, in particular to a processing method for a circuit board. Background technique [0002] Printed circuit board (PCB: Printed Circuit Board) is the basis of almost any electronic product and appears in almost every electronic device. Generally speaking, if there are electronic components in a certain device, they are also installed on PCBs of various sizes. [0003] In addition to fixing various components, the main function of PCB is to provide connection circuits between various components. As electronic equipment becomes more and more complex, more and more components are required, and the lines and components on the PCB are becoming more and more dense. [0004] The circuit board itself is made of insulating, heat-insulating, and inflexible material. The small circuit material that can be seen on the surface is copper foil. Be...

Claims

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Application Information

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IPC IPC(8): H05K3/00
Inventor 李春明徐学军
Owner SHENZHEN WUZHU TECH