PCB怎么分辨几层板

PCB怎么分辨几层板?单靠肉眼能分辨出来吗?
2025-03-16 20:12:50
推荐回答(3个)
回答1:

通常情况下,肉眼也可以分辨出来。配合万用表,能够判断是否是多层板,还是双层扳。

一般规模很大的PCB,用双面布线,肯定布不了的。所以肯定是多层。通过观察盲空,基本可以判断板子是否是多层?当发现有空未穿,或虽穿不通等情况,那么肯定是多层。或有脚无线,却有联通,不用思考了,肯定是多层。

判断方法还很多,但是从肉眼上看,一般是能看出来的。
多找些扳子看看,自己就找到感觉了。 但是具体是几层,三层还是四层、五层就不容易判断了。

回答2:

可以判断出来的。例如4层板只是中间增加一个电源层和地层。其实光看电源层就可以看出来了。例如有一个3.3V,你可以看如果几个3.3V的接点表面上没有连接的话,那肯定就是有一个电源层,那肯定就是多层板。

回答3:

除双面以外,多层肉眼不能看出,
在PCB板没做成产品前会有标示可以看出.

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