A dual function switch assembly includes a switch housing part containing multiple switches at different elevations and a rotor having cam surfaces aligned with the switches for operating the switches. The actuator can have levers that interact to bias the control actuator in the decoupled state. Also, one or more of the segments of the diffusion layer structures may be connected to other segments or the first engaging member by one or more bridges. The polymer layer is disposed over the passivation layer and the first metal layer, a second opening in the polymer layer being over a second contact point of the first metal layer, the polymer layer covering a top surface and sidewall of the first metal layer.