Introduction to the relationship between aluminum substrate, circuit board, and circuit board

Regarding the difference between aluminum substrate, circuit board, and circuit board, many netizens have recently raised this question online? What is the relationship between the three? Below, I will lead everyone to distinguish the relationship between the three.

Aluminum substrate is a metal based copper clad plate with good heat dissipation function. Generally, a single panel consists of a three-layer structure, namely a circuit layer (copper foil), an insulation layer, and a metal substrate. Some designs for high-end use are also double-sided boards, with a structure of circuit layer, insulation layer, aluminum base, insulation layer, and circuit layer. Very few applications are multilayer boards, which can be made by bonding ordinary multilayer boards with insulation layers and aluminum substrates.

A circuit board and a circuit board are actually the same thing, but the main difference is whether related components such as components are installed on the insulation substrate. A circuit board is a printed board without components installed, while a circuit board is a printed board with components installed, which is the difference between the two.

Aluminum substrate is just a circuit board made of aluminum alloy. Previously, our general circuit board material was fiberglass, so the main difference between aluminum substrate and them is the material and the process. However, in essence, they can be called copper clad plate.