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.
(2). With the infiltration of static the effect of protecting the loop happened.
(3). Manufacturing engineering can be more difficult compared with the exist
(4). Strong applicability to the changeable climate.