Implementing enhanced ultrafast touchdown measurement scheme using thermal and voltage actuation for hard disk drives

Implementing enhanced ultrafast touchdown measurement scheme using thermal and voltage actuation for hard disk drives

A method, apparatus, and system are provided for implementing touchdown measurement using thermal and voltage actuation for hard disk drives (HDDs). The touchdown measurement uses a constant power applied to a thermal flyheight control (TFC) and an electrostatic voltage bias pulse is applied between...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Rajauria Sukumar, Schreck Erhard, 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 touchdown measurement using thermal and voltage actuation for hard disk drives (HDDs). The touchdown measurement uses a constant power applied to a thermal flyheight control (TFC) and an electrostatic voltage bias pulse is applied between the slider body and the disk to actuate the slider into contact with the disk.