Some applications require non-tactile feedback in the membrane keypads. A typical application is a military and/or covert operation may need to be silent due to a dangerous situation. Other users may simply choose not to have tactile feedback.

1 Graphics overlay Polycarbonate or polyester screen printed on back.
2 Front & rear adhesives Acrylic with or without polyester support.
3 Spacer Acrylic with polyester support.
4 Circuits (upper & lower) Polyester 125 microns. Screen printed conductive inks. Tracks protected by insulating varnish.
5 Protection Polyester 75 microns
6 Stainless steel dome