What Is a Printed Circuit Board (PCB)? - All About Circuits
https://www.allaboutcircuits.com/technical-articles/what-is-a-printed-circuit-board-pcb/
WEBApr 10, 2020 · The Structure of a PCB. A very basic printed circuit board is a flat, rigid, insulating material that has thin conductive structures adhering to one side. These conductive structures create geometric patterns consisting of, for example, rectangles, circles, and squares.
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