Flexible circuit board is a commonly used circuit board. According to different needs, manufacturers also produce various types of flexible circuit boards. The commonly used ones are single-sided, ordinary double-sided , single-sided from the substrate, and double-sided from the substrate.

1. Single-sided flexible circuit board

After the circuit is completed, a single-sided PI copper-clad material is used, and then a layer of protective film is covered to form a flexible circuit board with only a single layer of conductors .

2. Ordinary double panel

After the double-sided circuit is completed using the double-sided PI board copper-clad material, a protective film is added on both sides to become a circuit board with double-layer conductors.

3. The substrate generates a single panel

Using pure copper foil material, in the circuit manufacturing process, a layer of protective film is added on both sides successively, which becomes a circuit board with only a single layer of conductors but with exposed conductors on both sides of the circuit board.

4. Substrate generation double-sided

Use two layers of single-sided PI copper-clad laminate material to be pressed together with adhesive glue that opens windows at specific positions to form a double-sided conductor circuit board with a two-layer separation structure in a local area and a two-layer separation structure in the local area. Circuit boards with high flex performance.

This is the common classification of flexible circuit boards, which also provides us with some reference when purchasing, we can purchase which type of flexible circuit board according to the actual use needs.