Metal Core PCB (MCPCB) is a special type of PCB that uses a metal substrate as the core support and composites conductive copper foil with the metal core through a high-thermal conductivity insulating dielectric layer. Its core advantage lies in excellent thermal conduction and heat dissipation capabilities. Compared with traditional FR-4 PCB (thermal conductivity only 0.3 W/(m·K)), MCPCB's thermal conductivity can reach 1.0-380 W/(m·K), which can quickly conduct heat generated by high-power devices to the metal substrate and dissipate it, effectively reducing the operating temperature of devices and improving reliability and service life. Its core structure consists of three parts: metal core layer (aluminum/copper/iron), insulating dielectric layer (high-thermal conductivity resin + ceramic filler), and conductive copper foil layer.