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Investigation of Head Burnishing of Thermal Flying Height Control Sliders

[+] Author Affiliations
Liane Matthes

University of California, San Diego, La Jolla, CA

Ralf Brunner, Bernhard Knigge

Western Digital, San Jose, CA

Frank E. Talke

UC San Diego, La Jolla, CA

Paper No. ISPS2013-2909, pp. V001T01A021; 3 pages
doi:10.1115/ISPS2013-2909
From:
  • ASME 2013 Conference on Information Storage and Processing Systems
  • ASME 2013 Conference on Information Storage and Processing Systems
  • Santa Clara, California, USA, June 24–25, 2013
  • Conference Sponsors: Information Storage and Processing Systems Division
  • ISBN: 978-0-7918-5553-9
  • Copyright © 2013 by ASME

abstract

The head-disk spacing in current hard disk drives is approximately 1–2 nm. This distance is on the same order as the peak to valley surface roughness of a typical thin film disk. If one attempts to reduce the head-disk spacing even more, intermittent contacts between the slider and the disk are more likely to occur. Intermittent contacts are undesirable since they can result in slider and disk wear, lubricant transfer or degradation of the read and write elements.

Copyright © 2013 by ASME

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