Aluminium metal core PCB
MCPCB, Metal Core PCB, thermal PCB – whichever name you prefer, they all use a base metal material as the heat spreader portion of the circuit board. It is widely used in LED Products.
Base metals in the MCPCB are an alternative to FR4 or CEM3 boards to dissipate heat away from critical board components and minor crucial areas such as the metal heat sink backing or metallic core.
The metal core of the thermal PCB can be aluminium (aluminium core PCB), copper (copper core PCB or a heavy copper PCB) or a mixture of special alloys. The most common is an aluminium core PCB.
The thickness of metal cores in PCB base plates is typically 0.8mm, 1mm, 1.5mm, and 1.6mm, but thicker and thinner plates are possible.
MCPCB copper foil thickness can be 0.5 to 1 oz.
Advantages of MCPCB
MCPCBs can be advantageous for integrating a dielectric polymer layer with high thermal conductivity for lower thermal resistance.
Metalcore PCBs transfer heat 8 to 10 times faster than FR4 PCBs. MCPCB laminates dissipate heat, keeping heat-generating components cooler, which results in increased performance and life.
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