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Quality control requirements for power circuit boards

2022/11/22

Compared with other types of circuit boards, the requirements of power supply circuit boards are high reliability and special copper thickness requirements. And these two points for the circuit board factory, is exactly the control difficulties, so how to produce high reliability power circuit board? It is described from the following four aspects:

 


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Compared with other types of circuit boards, the requirements of power supply circuit boards are high reliability and special copper thickness requirements. And these two points for the circuit board factory, is exactly the control difficulties, so how to produce high reliability power circuit board? It is described from the following four aspects:

1. Material selection: The circuit board of the power supply requires high stability, so attention should be paid to the selection of medium and high TG boards.

 

2, the control of copper thickness: in the case of the same online wide design, the thicker the copper (that is, 2OZ thicker than 1OZ) can bear the greater the current, so the power circuit board of the copper thick requirements are special, according to the power circuit board application field, copper thickness requirements are different.

 

3, the control of ink thickness: for the thick copper power circuit board, the line is easy to expose copper redness, so it is necessary to do two welding to thicken the thickness of green oil.

 

4, quality control: the high reliability of the power circuit board requires more strict quality control, including the inner layer of AOI, electroplating copper thickness test, outer AOI, electrical performance test, reliability test and so on, for each link of the control is linked, one is indispensable.

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