Printed circuit boards are now a common part of our daily routine. We are using PC Board Fabrication [1] in almost every electronic device we are using for our work and entertainment purposes. Whether it is a mobile phone, or a screen, or a remote for television, every device consists of a printed circuit board. That's the reason understanding its working is kind of crucial these days. When we discuss printed circuit boards, we need to understand their layers. PCBs have various layers, and these layers are concerned with their working. These layers will vary according to their working.
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