custom metal dome membrane keypad keyboard with FPC

Flexible Printed Circuits membrane switch Flexible copper circuit is a vast accumulation of conductors bonded to a thin dielectric, or insulating film.  In a Flexible copper circuit, a very thin sheet of copper is first laminated to the flexible film substrate then chemically etched away, leaving copper traces. The etching process is not as environmentally friendly and more expensive than screen-printing silver traces.   Cixi membrane switch team can use flexible copper circuits which provide more robust design options when space is limited and circuit density is increased.   By incorporating technology with flex copper circuits, we can combine surface mount components into a harsh environment flexible copper circuit assembly.   Advantages of Flexible Printed Circuits: l  Improved creasability the ability to fold or crease without causing open circuits which you are susceptible to using silver ink l  Ability to put solder components directly on flex, be…