A 6-layer PCBA is a complex structure consisting of six layers of copper and insulation that provides additional signal, ground, and power layers for better signal integrity, immunity, and thermal management. 6-layer PCBAs are used in a variety of high-end applications, such as communications, medical, industrial control, and aerospace.

8-layer PCBA is suitable for a variety of demanding applications, such as servers, network equipment, military equipment, automotive electronics and other fields.

10-layer PCBA is an advanced structure made of 10 layers of copper foil and insulation laminated together to provide more signal