A capacitive touch sensor (100) is provided. The capacitive touch sensor (100) includes an electrode (110) disposed between a plate (120) and a spring (130) wherein the spring (130) presses the electrode (110) towards the plate (120) in a direction that is substantially parallel to a longitudinal length (L) of the spring (130) and the electrode (110) has a flat sensing surface (112) parallel with the plate (120).
