Circuit board processing method
A processing method and circuit board technology, applied in printed circuit, printed circuit manufacturing, electrical components, etc., can solve the problems of increasing process difficulty, reducing yield rate, increasing cost, etc., to expand the area of wiring area, reduce wiring density, improve The effect of product yield
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[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0030] Circuit boards can be divided into single-sided, double-sided and multi-layer boards according to their wiring levels. A single-sided circuit board is a printed board that is provided with conductive patterns on only one surface. Generally, it is made of phenolic paper-based copper-clad foil layer, and epoxy paper-based or epoxy glass cloth copper-clad laminate is often used.
[0031] The printed pattern of the single-sided circuit board is relatively simple. Generally, the method of screen printing is used to transfer the pattern, and then the printed board is etched, and some are produced by the photochemical method.
[0032] A double-sided circuit board is a printed board with conductive patterns arranged on the opposite sides. Obviously, the area of a double-sided circuit board is twice as large as that of a single-sided board...
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