Abstract
The slider/disk spacing of magnetic disk drives has been reduced to less than 2nm by using the thermal flying height control system in order to increase the recording density. Because of the narrower gas bearing clearance, the bearing pressure rises up to several tens times of atmospheric pressure. This pressure rise causes the deformation of slider and disk surface, and consequently the slider-disk gap changes from the designed value, in which the effect of deformation is not included. The flying characteristics also may be different from that of expected. We employed the simple numerical method for analyzing the deformation of pressurized disk surface utilizing the elastic half-space assumption. The finite element method was applied to analyze the slider deformation. We also introduced the flying attitude search method against the case where the disk and slider deformation exists and the effect of deformation on the slider attitude is evaluated.
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