The Basic Structure Of FFC Cable

Copper Film
Copper foil: basically divided into two types: electrolytic copper and rolled copper. The most common thicknesses are 1oz, 1/2oz and 1/3oz
Substrate film: There are two common thicknesses: 1mil and 1/2mil.
Glue (adhesive): The thickness is determined according to the customer’s requirements.
Cover Film
Cover film protection film: for surface insulation. Common thicknesses are 1mil and 1/2mil.
Glue (adhesive): The thickness is determined according to the customer’s requirements.
Release paper: avoid the adhesion of foreign matter before pressing; Easy to work.
Reinforcement plate: Strengthens the mechanical strength of FPC, which is convenient for surface mounting operations, and the common thickness is 3mil to 9mil.
Glue (adhesive): The thickness is determined according to the customer’s requirements.
Release paper: Avoid the adhesion of foreign matter before pressing.
EMI: Electromagnetic shielding film to protect the lines in the circuit board from external interference (strong electromagnetic area or susceptible area).