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Aluminum substrate is a kind of metal based copper clad laminate, which has good heat dissipation function. There are generally three layers of structure, namely metal base layer, insulation layer and circuit layer (copper foil).

1.The aluminum substrate designed for some high-end products is a double-sided board, and the construction layer is a circuit layer, an insulation layer, an aluminum base, an insulation layer, and a circuit layer. Multilayer aluminum substrate is very rare.

2.Difference between aluminum substrate and ordinary circuit board

Aluminum substrate is also a kind of printed circuit board. The difference between it and PCB is mainly aluminum alloy, and the information of ordinary PCB is glass fiber.

3.Reasons for selecting aluminum substrate for LED chip

When the LED lamp works, it will generate a lot of heat. Therefore, heat dissipation must be considered in the design of LED light PCB. The biggest feature of aluminum substrate is fast heat dissipation, so the circuit board selected for LED light is mainly aluminum substrate.