A PCB could comprise several insulating boards
Often, the structure and manufacturing of a pcb (PCB) can be as critical as the style of the main circuit itself. Printed Circuit Board Manufacturer are increasingly using compact, flexible PCBs to assemble and organize electronic circuits. A PCB could comprise several insulating boards where copper layers and conductive signal traces have already been either etched or printed. Based on the complexity in the circuit, printed circuit board manufacturing could typically involve between an individual layer PCB to eight (or even more) layers.