Patent ID: 8194041

Claim:
A keypad, comprising: a key pair; wherein the key pair comprises physically coupled first and second keys; wherein the key pair comprises a plunger layer and a cap layer over the plunger layer; wherein the plunger layer and the cap layer are shared by the first and second keys of the key pair; wherein a first portion of the plunger layer and a first portion of the cap layer corresponds to the first key of the key pair and a second portion of the plunger layer and a second portion of the cap layer corresponds to the second key of the key pair; wherein the plunger layer comprises first and second plungers respectively protruding from the first and second portions of the plunger layer; wherein the first portion of the cap layer and the first portion of the plunger layer are configured to deform together in response to a force being applied to the first key of the key pair and the second portion of the cap layer and the second portion of the plunger layer are configured to deform together in response to a force being applied to the second key of the key pair; and wherein the plunger layer and the cap layer are of different materials.