PCB (printed circuit board) supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. Components are generally soldered on the PCB.
The base PCB material (CCL-Copper Clad Laminate) is a composite material that composed of dielectric layer (Resin, glass fiber) and high-purity conductor (copper foil).
1,According to reinforced materials (the most commonly way)
1). Paper board(FR-1, FR-2, FR-3) (XPC, XXXPC)
2). Epoxy Glass Cloth (FR-4, FR-5)
3). Composite board (CEM-1, CEM-3, CEM-5) (CEM-2, CEM-4)
4). HDI board (RCC-Resin Coated Copper)
5). Special board (metal board, ceramic board, etc.)
2, According to the different types of resin
1). Epoxy resin
2). Polyester resin
3). PI resin (polyimide)
3, According to flame retardant properties
1). Flame retardant (UL94-VO, UL94-V1)
2). Non-flame retardant (UL94-HB level)