Title: Chemical-modification approach for the near contact regime

Authors: Hiroshi Chiba, Keiji Watanabe

Addresses: Advanced Materials Laboratory, Device and Materials Laboratories, Fujitsu Laboratories Ltd., 243-0197, Japan. ' HDI Engineering Department, Fujitsu Ltd., 243-0197, Japan

Abstract: In this paper, we present two chemical-modification approaches concerning higher areal recording densities for hard disk drives. One is a reduction of the thickness of the lubricant monolayer in order to achieve narrower magnetic spacing, accomplished through a newly synthesised lubricant. The other is a decrease in the van der Waals force between the head slider and the media-disk in order to obtain stability at an extremely low flying height. This examination was carried out utilising a bonded lubricant on an air-bearing surface.

Keywords: synthetic lubricants; monolayer thickness; magnetic spacing; van der Waals force; bonded lubricant; near contact; flyability; chemical modification; areal recording densities; hard disk drives; stability; flying height; air-bearing surfaces.

DOI: 10.1504/IJPD.2008.017468

International Journal of Product Development, 2008 Vol.5 No.3/4, pp.339 - 348

Published online: 11 Mar 2008 *

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