The rise in popularity of multi-layer PCBs with more than two, and particularly with more than four, copper planes was simultaneous with the reception of surface mount innovation.
Ukukhuphuka kokuthandwa kwama-PCB amaningi amaningi angaphezu kwamabili, futhi ikakhulukazi ngezindiza ezingaphezu kwezine, zethusi bekuhambisana kanye nokwamukelwa kobuchwepheshe bezintaba ezingaphezulu.