Single-sided FPC：basic flexible printed circuit board, composite of one layer of copper foil. This provides greater flexibility. In addition, it is lightweight, thin and space saving.

Double-sided FPC：uses double-sided copper foil to provides greater flexibility, accommodates higher density wiring compared with single-sided FPC.

Double access：has the same construction as single sided copper foil but opening at cover layer provides access to both sides of the copper layer.

Multi-Layer FPC：a combination of single and/or double-sided flex circuits laminated with thermoset adhesive. Provides flexibility for complex wiring accommodated in limited space.