A device with a viewable surface including a plurality of transparent pedestals having a reflective material disposed on its sides make smudges forming thereon unnoticeable by taking advantage of optical characteristics including contrast and the user’s visual acuity. Each stage is made up of a single centrifugal rotor and a fixed ducting, associated to such centrifugal rotor and made on the single stator case. Exemplary embodiments of the set programming methods andor write driver circuits may result in the phase-change cells to transition to the set resistance state. An encapsulant is deposited over the leadframe and first and second die.