Today follow me to know the difference between poly dome and metal dome. The main structure of poly dome is poly rubber adhesive, Mylar, Spacer and printed conductive layer.
First, Poly dome & Metal dome design specifications:
1, Rubber Keypad + Poly dome
2, PC Hydro formed Keypad + Metal dome
3, PC Hydro formed Keypad + Rubber Keypad + Poly dome or Metal dome
The difference between poly dome & metal dome as below form:
After you know this information of poly dome & metal dome, I think you can know your design requirements. If you need further information, please feel free to contact us.