A device for accessing data stored on a medium includes a substrate that has a
transducer on a back side, a bottom side facing the disc, and a surface that protrudes
from the bottom side. An insulation layer is placed on top of the surface. An electrostatic
actuator electrode is placed on top of the insulation layer. The electrostatic
actuator electrode faces the medium across an electrostatically charged portion
of an air layer. The electrostatic actuator electrode protrudes above the surface
into the electrostatically charged portion of the air layer.