Dome sheet metal dome button

METAL DOME, Dome Array, metal buttons, metal shrapnel, guided power grids, membrane switch, the phone keypad film, the product has a guide flak, feel good, long life, easy assembly, dust resistance, and other characteristics. The products are widely used in electronic products, such as: car GPS navigation systems, electronic dictionaries, remote control, digital photo frame, MP3, MP4, etc; communications products such as: cell phones, PHS, cordless phones, picture-machine, radio and so on. Metal shrapnel conductive film (Metal dome array), which is a contained metal shrapnel (Dome Array) of PET flakes used in PCB or FPC and other circuit board used as a switch between the user and the instrument plays an important the role of touch-type switch. Compared with conventional silicone keys, a conductive film having a better feel better, longer life, can also be used indirectly to improve production efficiency of each conductive film type switch. Metal shrapnel metal shrapnel conductive film located conductive parts (mostly in the circuit board pad above) PCB board, when pressed by shrapnel in the center of concave, exposure to PCB on the line to form a loop , the current through the entire product to be working properly. This is how it works