PCB Materials - Classification by Resin

1.Paper - based Phenolic Board

It includes XPC, XXXPC, FR - 1 and FR - 2, and is composed of phenolic resin and fiber paper.

2.CEM - 1/CEM - 3
Glass cloth is used on the surface. The core of CEM - 1 is fiber paper, and the core of CEM - 3 is glass felt.

3.FR - 4 Material
It generally refers to the substrate with glass cloth base impregnated with epoxy resin.

4.High - performance Material
Other special/non - phenolic/non - FR - 4 resin - based substrates also include newly - developed materials such as Aramid and RCC.

5.Halogen - free Material
Substrates using a halogen - free resin system are currently applied in CEM - 1, CEM - 3 and FR - 4.