Observation of Slider Landing Process in Hard Disk Drive |
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Authors: | Email author" target="_blank">Y?S?MaEmail author B?Liu |
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Affiliation: | (1) Data Storage Institute, 5, Engineering Drive 1, 117608, Singapore |
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Abstract: | With the decrease in slider flying height, slider flying instability caused by slider–disk interactions is becoming a big
concern. Novel technology has to be employed to further improve our understandings about slider–disk interaction. In this
work, a slider flying height-attitude testing (3D) system was employed to study slider–disk interaction during a slider landing
process to demonstrate its capability for the application. It is shown that great details of slider–disk interactions and
subtle variations of the slider flying attitude during the landing process can be revealed with the 3D system. Slider dynamic
flying height and attitude (pitch and roll angles) during the landing process can be determined from the data recorded in
one test. Furthermore, analysis in frequency domain can be done not only on flying height, but also on pitch and roll angles
directly. It is found that the slider landing process can have different stages during which slider performance and characteristics
of slider–disk interaction are different. |
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Keywords: | hard disk drives slider– disk interaction flying height experimental study |
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