IMPLEMENTING ENHANCED IN-SITU MONITORING OF HEAD OVERCOAT WEAR FOR CONTROLLED BURNISHING AND EARLY DETECTION OF HEAD FAILURE IN HDD
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United States of America Patent
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N/A
Issued Date -
Jan 5, 2017
app pub date -
Jul 2, 2015
filing date -
Jul 2, 2015
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method, apparatus, and system are provided for implementing in-situ monitoring of head overcoat burnishing and early detection of head failure in a hard disk drive (HDD). A voltage is applied across a slider-disk interface between the slider body and the disk. Realtime monitoring of electrical current flowing across the slider-disk interface is performed for determining an amount of burnishing of the slider.
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