LED Light SMT PCB Board Aluminum Electronic Multilayer PCBA LED Light SMT PCB Board Aluminum Electronic Multilayer PCBA What is multilayer PCBA? Multilayer PCBA (Multilayer Printed Circuit Board Assembly) is the fully assembled board that contains three or more conductive copper layers laminated together with insulating dielectric material. These internal layers are interconnected by plated-through, blind or buried vias, and carry traces, power planes and ground planes. After