Browse Prior Art Database

Vapor Lubed Sliders for Improved Head/Disk Interface Tribology

IP.com Disclosure Number: IPCOM000122780D
Original Publication Date: 1998-Jan-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 71K

Publishing Venue

IBM

Related People

Coffey, KR: AUTHOR [+3]

Abstract

Disclosed is a novel approach towards improving Head/Disk Interface (HDI) durability by vapor depositing a very thin layer of bonded lubricant on the air-bearing surface (ABS) of the magnetic slider.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Vapor Lubed Sliders for Improved Head/Disk Interface Tribology

      Disclosed is a novel approach towards improving Head/Disk
Interface (HDI) durability by vapor depositing a very thin layer of
bonded lubricant on the air-bearing surface (ABS) of the magnetic
slider.

      The tribology of the head/disk interface (HDI) of rigid disk
drives plays a critical role in determining the drive performance.
Ever increasing demands for storage capacity require that the heads
fly lower  on smoother surfaces which in turn impose escalating
demands on the head/disk interface tribology.  Smoother disk surfaces
lead to higher adhesion and friction by increasing the contact area,
while the reduced  head-to-media spacing increases the frequency of
the slider-disk contacts.

      The key to developing the best tribological interface has been
in understanding the physics and chemistry of the friction and wear
processes that occur during slider-disk interactions.  Better
longevity in terms of number of Contact-Start-Stop (CSS) operations
necessitates a more durable interface, and although the HDI system is
composed of two  entities, namely the head and disk, most work has
been focused on improving the friction and wear properties of the
media.  Thus, the surface texture, composition, and characterization
of the disk overcoat  and topical lubrication have dominated the
study of parameters governing  the tribology of the interface.
Recently, the critical role of the slider ABS that came into contact
with the disk surface in determining  the HDI tribology has been
recognized.  Deposition of a thin layer of hydrogenated carbon film
on the slider ABS has been shown to considerably  improve the
durability of head/disk interface.

      A new approach to improving the head/disk interfa...