IMPLEMENTING ENHANCED IN-SITU MONITORING OF HEAD OVERCOAT WEAR FOR CONTROLLED BURNISHING AND EARLY DETECTION OF HEAD FAILURE IN HDD

IMPLEMENTING ENHANCED IN-SITU MONITORING OF HEAD OVERCOAT WEAR FOR CONTROLLED BURNISHING AND EARLY DETECTION OF HEAD FAILURE IN HDD

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 cur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Rajauria Sukumar, Schreck Erhard, Mate Charles Mathew, Canchi Sripathi Vangipuram
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung: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.