Patent ID: 8610015

Claim:
A pressure sensitive key comprising: a sensor substrate having one or more conductors; a spacer layer disposed proximal to the sensor substrate and having at least one opening that exposes the one or more conductors of the sensor substrate, the opening defining a plurality of edges of the pressure sensitive key; a flexible contact layer spaced apart from the sensor substrate by the spacer layer and configured to flex through the opening in response to an applied pressure to contact the one or more conductors of the sensor substrate to initiate an input, the flexible contact layer secured to the spacer layer such that: at first said edge, the flexible contact layer is secured to the spacer layer at an approximate midpoint of the first said edge and is not secured to the spacer along another portion of the first said edge; and at a second said edge, the flexible contact layer is not secured to the spacer layer along an approximate midpoint of the second said edge.