Plastic performance and tightly stick on Keypad
(2).EMI printing has been adopted on current Metal Dome switch, and the priority of EMI
printing lies in controlling the impedance of printing surface below 1.0, which result in effect of prevention to Hertzian waves and electrometer, in this way, the tone
can be dealt with on the surface.
(3). With the infiltration of static the effect of protecting the loop happened.
(4). Manufacturing engineering can be more difficult compared with the exist
(5). Strong applicability to the changeable climate.