Browse Prior Art Database

Tribologically Enhanced Slider without the Magnetic Spacing Loss

IP.com Disclosure Number: IPCOM000106278D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Meyer, DW: AUTHOR [+3]

Abstract

Disclosed is a method for improving the tribological characteristics of N-58 sliders without an increase in magnetic spacing. The method uses high crown sliders with an overcoat that is truncated somewhere between the trailing edge and the center of the slider.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 95% of the total text.

Tribologically Enhanced Slider without the Magnetic Spacing Loss

      Disclosed is a method for improving the tribological
characteristics of N-58 sliders without an increase in magnetic
spacing.  The method uses high crown sliders with an overcoat that is
truncated somewhere between the trailing edge and the center of the
slider.

      The primary disadvantage of using slider overcoats for improved
tribological performance on thin-film rigid disks is the increased
magnetic spacing requirements.  Recently, work completed in
Rochester-Mechancial Integration has both experimentally and
numerically evaluated the take-off and landing behavior of small
sliders on both roughened and smooth disks.  The key point of this
work in relation to this disclosure is that during take-off and
landing, the rear portion of the slider may not contact the disk.
The likelihood of rear-point contact is a function of the disk
roughness, crown and the velocity/pitch relationship of the slider.

      Given the lack of contact of the rear-trailing edge of certain
sliders during landing, the possibility of truncating the slider
overcoat somewhere forward of the slider trailing edges is disclosed.
The overcoat truncation limit is dependent upon the slider design and
crown, but should be somewhere between the magnetic element and the
location of the suspension pivot.  This allows the tribological
improvements of certain overcoats such as carbon or silica-based
materials, to be realize...