Seiko Precision INC.

DOMET-el
SEIKO Precision developed a proprietary automated process to pick & place Metal Domes directly on the back side of an EL foil, thus realising a single foil solution for domes & backlight. 12 types of Metal Domes are available ranging from 3.5mm to 6mm diameter. This innovative solution simplify the design of a keypad and enhance its cosmetics appearance while saving energy.


Applications
Mobile Phones
PDA
Portable Medical Devices
Payment terminals
PMR phones
Hand Held GPS devices
Car Entertainment Systems
Car buttons & Switches
Motorbike Switches
Membrane Switches
SMS keyboards


Characteristics
  Design : Single foil solution
  Profile : Thinnest profile : 0.56mm ( Dome + EL )
  Cosmetics : Excellent uniformity
  Feeling : Click ratio from 40% to 70% ( selectable )
  Current : typ. less than 10mA ( 20 keys )
  Protection : High resistance to ESD discharge
  Key Tops : Suitable for Plastic & Silicon Key tops
  Long Life : Up to 1 million actuations
  Temperature : 40°C to 85°C
  Actuator : 1 mm ~ 1.5mm diameter shape
  Design Rules : SEIKO Precision Design rules
  Brightness : More than twice as bright as conventional separate type