Printed Circuit Board (PCB), also known as Printed Circuit Board or Printed Circuit Board. Multilayer printed boards refer to printed boards with more than two layers, which are composed of connecting wires on several layers of insulating substrates and solder pads used for assembling and welding electronic components. They not only have the function of conducting the circuits of each layer, but also have the function of mutual insulation.
PCB multilayer board refers to a multi-layer circuit board used in electrical products, which uses more single or double-sided wiring boards. A printed circuit board that uses one double-sided inner layer, two single-sided outer layers, or two double-sided inner layers, and two single-sided outer layers, and is interconnected with conductive graphics according to design requirements through positioning systems and insulating bonding materials, becomes a four or six layer printed circuit board, also known as a multi-layer printed circuit board.