... , the maximum flying clearance decreases as the temperature increases due to the consequence of the thermal expansion of the head materials, i.e., crown angle change and thermal pole tip protrusion. This indicates that if we know the temperature sensitivity ( nm / ° C ) of each head, then we...

...Sung-Chang Lee; Brian D. Strom The effect of thermomechanically actuated pole tip protrusion on adhesive forces is characterized through model and experiment. The roughness of a thermomechanically actuated region is characterized by atomic force microscopy. Using the extracted roughness parameters...