Double-sided PCBs are the same as single-sided PCBs, but the difference is they have two sided traces with a top and bottom layer. Double-sided PCBs can mount conductive copper and components on both sides of the printed circuit board so that the traces can cross over each other.

 

Double-sided PCBs are one of the most popular types of PCBs because they make manufacturers to fabricate more complex circuits, which can benefit uses in higher technology applications and electronics. There is an abundance of applications and electronics which double sided PCBs can be used in electronics.