MCPCB wiki introducing for you
The content below is from wiki, Allen just wants more PCB people to know the real MCPCB knowledge.
MCPCB (Metal Core PCB) is those boards which incorporate a base metal material as heat spreader as an integral part of the circuit board.
The metal core usually consists of aluminum PCB alloy.
Furthermore MCPCB can take advantage of incorporating a dielectric polymer layer with high thermal conductivity for lower thermal resistance.