The aluminum PCB is a metal based Copper-clad Laminate having good heat dissipation function. it is composed of a unique three-layers structure, respectively, the circuit layers (copper foil), an insulating layer and the metal substrate. The aluminum PCB (metal base heat dissipation plate (containing aluminum PCB, copper substrate, iron substrate)) is a low-alloyed AI-Mg-Si-based high plasticity alloy plate. it has a good thermal conductivity, electrical insulation performance and mechanical processing properties. Compared with conventional FR4, the aluminum PCB uses the same thickness, the same width, the aluminum plate is capable of carrying higher currents, the aluminum plate can withstand up to 4500V voltage. The thermal conductivity is greater than 2.0.
Features of aluminum PCB
Using Surface Mount Technology (SMT)
Effectively treat thermal diffusion in the circuit design
Reduce product operating temperature, increase the power density and reliability, and to extend the life of the product
Reduce product volume, lower hardware and assembly costs
Replace the fragile ceramic substrate, to obtain better mechanical durability
All of these advantages make aluminum PCB an excellent choice for high outputs of power applications’ requirements within very tight tolerances, including:
- Traffic lights
- Automotive lighting
- Power supplies
- Motor controllers
- High-current circuitry
In addition to those major areas of use, aluminum PCB can also be used in applications that require a high degree of mechanical stability or where the PCB might be subject to high levels of mechanical stress. In MOKO, we have produced more than 1000 aluminum substrate projects which used in high levels of mechanical stress. Most customers choose it instead of a fiberglass-based board, just because They are less subject to thermal expansion.it meaning that the other materials on the board, such as the copper foil and insulation, will be less likely to peel away, further lengthening the lifetime of the product.