FPC (Flexible Printed Circuit) Switch —— The circuit layer of the membrane switch adopts FPC material.
Advantages: High-precision circuits; The minimum line-spacing can achieve 0.5MM; extremely low resistance value; It can be welded with many kinds of smaller components such as LED, resistance, optical fiber and so on; reliable performance; long life; The non-common silver paste FPC switch may compare.
Disadvantages: costly.