Aluminum substrate is a kind of metal based copper clad laminate with good heat dissipation function. Generally, a single panel is composed of three layers, namely circuit layer (copper foil), insulating layer and metal base layer. For high-end use, there are also double-sided boards designed with circuit layer, insulation layer, aluminum base, insulation layer and circuit layer. Very few applications are multilayer boards, which can be formed by bonding ordinary multilayer boards with insulating layer and aluminum base.

　　LED aluminum base plate means PCB and printed circuit board, but the material of the circuit board is aluminum alloy. In the past, the material of our general circuit board was glass fiber, but because of the large heating of LED, the circuit board for LED lamps is generally aluminum base plate, which can conduct heat quickly. The circuit board for other equipment or electrical appliances is still glass fiber board!