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Reducing the Viscous Force (Stiction) of Magnetic Head Sliders on Lubricated Magnetic Disks

IP.com Disclosure Number: IPCOM000045266D
Original Publication Date: 1983-Feb-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Hinkel, H Kempf, J Kuenzel, U Prinz, E [+details]

Abstract

The stiction of sliders with magnetic heads on magnetic disks is eliminated by locally heating the lubricant between the slider and magnetic disk for a short time. This heating, before the magnetic disks are started from the inoperative state, temporarily reduces the viscosity of the lubricant and thus the dynamic stiction force which is directly proportional to the viscosity. Heating is effected, for example, by electric resistors arranged on the sliders or by hot air fanning the slider and the disk area in contact with it.