Blue Printed Circuit Board with resistors, capacitor and transistors, from Bosch Worcester central heating boiler

Blue Printed Circuit Board with resistors, capacitor and transistors, from Bosch Worcester central heating boiler A printed circuit board, or PCB, is used to mechanically support and electrically connect electronic components using conductive pathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate. Excluding exotic products using special materials or processes, all printed circuit boards manufactured today can be built using the following four items which are usually purchased from manufacturers: Laminates Copper-clad laminates Resin impregnated B-stage cloth (Pre-preg) Copper foil