To comprehend just how a circuit works, you need to recognize the board fundamentals. This includes understanding the different layers and also what each layer does. A PCB is a base for a circuit card. It is comprised of four basic layers: copper, substrate, solder mask, as well as silkscreen. A few various other points make up a PCB, but this is the framework that a lot of boards adhere to. Printed Circuit Boards are one of the most typical electronic components. It is not an overestimation to claim that they are anywhere.