Better heat dissipation and conductivity: Compared with ordinary FR4 PCB, aluminum PCB has excellent heat dissipation performance. For example, Fr4 PCB with a thickness of 1.5mm will have a thermal resistance of 20-22 degrees per watt, while aluminum PCB with a depth of 1.5mm will have a thermal resistance of 1-2 degrees per watt.

There is no serious problem of thermal expansion or contraction: each substance has its coefficient of thermal expansion. The CTE of aluminum (22ppm/C) and copper(18ppm/C)is quite close. Since aluminum PCBs work well in terms of Thermal dissipation, they do not have the severe expansion or contraction issues. They work excellently and are durable and reliable.

Dimensional Stability: aluminum PCBs show dimensional stability and stable size. For example, when they are heated from 30-140 degrees, their size only had a change by 2.5%-3.0%.

Others: Aluminum PCBs can be used in power device surface mount technology. They are valid for use in circuit design because of their performance in terms of thermal expansion of circuit design. They help to prolong product shelf life and product power density. They are also extremely reliable. They can help to shrink the overall volume of the product and is also a cheaper option. They show electromagnetic shielding and high dielectric strength.