| Membrane-switches
serve as a way of giving an operator interface distinctive
graphics or an attractive look. The overlay or top
layer of the switch is screen-printed with graphics
(usually on the back of the overlay for protection
from the environment). Typical overlay materials include
polyester and polycarbonate and may have a thickness
ranging from 0.005 to 0.015 in. The
typical circuit material for membrane keypads is silver
conductive ink screen printed on a polyester substrate.
The circuit layer is die cut to the right shape after
printing. Alternatively, copper-etched layers or a
conventional PCB can also serve as the base circuit.
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Dead
front windows
Transparent windows
Selective UV hard coats
Embossed overlays
Laser cutting for fast
prototypes
Electrostatic
discharge (ESD) shields
Metal
sub panels made at our fabrication
shop
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Tactile
and non tactile
Metal and plastic domes
100 % testing
Top and sub-surface printing
Design assistance
Graphic overlay on a
printed circuit board
Custom
color matching
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