Abstract
1. Abstract As the recording density of hard-disk drives (HDDs) has rapidly increased, the flying height of magnetic head sliders has to be decreased to less than 10 nm. The wide distribution band of flying heights caused by wide manufacturing tolerances and environmental variations, was the largest obstacle to reducing the flying height (Fig. 1). To reduce the distribution band, we have developed a thermal flying-height control (TFC) technique. This technique can be used to adjust the flying heights of sliders on demand by means of a built-in micro-actuator. This new technique enhances the performance and improves the yield rate of HDDs.
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