# The advantage and disadvantage of aluminum PCB

_Published: 2016-03-18_

The aluminum PCB is a unique[metal base copper clad laminate](http://www.bestpcbs.com/products/metal-core-pcb.htm) , it has good thermal conductivity, electrical insulation properties and machining property.

The structure of aluminum PCB is divided into three layers.

First layer: base layer, it is the metal substrate, which can choose copper or aluminum.

Second layer: dielectric Layer, its thickness be from 0.003 inch to 0.006 inch.

Third layer: circuit layer, the copper thickness of the circuit is from 1oz to 10oz.

The advantage of aluminum PCB:

- it has good heat radiation and better strength.

 

The disadvantage of aluminum PCB:

- High cost.
- The current mainstream can only do single aluminum PCB, it is difficult to do double sided aluminum PCB.
- The product will be more easily to have matter in electrical strength and pressure.

Aluminum core PCB have good thermal conductivity but [Ceramic PCB](http://www.bestpcbs.com/products/ceramic-pcb.htm) will better,if you would like to know more about the different from FR4,MCPCB and Ceramic PCB,[pls visit to for more information.](http://www.bestpcbs.com/about/capability.htm)