Formation and CSS performance of NiP surface textured by argon ion laser

Author

Wang, W.J. ; Lu, Y.F. ; Liew, T. ; Ravikiran, A. ; Chai, M.C. ; Low, T.S.

Author_Institution

Data Storage Inst., Nat. Univ. of Singapore, Singapore

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1798

Lastpage

1800

Abstract

Laser-induced microtexture has been produced by using an argon-ion-laser-based system to provide low flying height and low stiction between the head and the disk for high recording density. Laser bumps with different profiles, such as dome-like type, crater type, double-rim crater type and elliptical type, etc. have been formed because of the precise and flexible control of our system. The mechanisms responsible for the formation of laser bumps are laser induced capillary effects during the laser surface melting and cooling process. The topography of the textured surface is regular and presents excellent CSS performance

Keywords

capillarity; laser beam applications; magnetic disc storage; magnetic heads; melting; nickel compounds; recrystallisation texture; surface phase transformations; surface texture; surface topography; CSS performance; NiP; NiP surface; argon ion laser; cooling process; crater type bumps; disk; dome-like type bumps; double-rim crater type bumps; elliptical type bumps; head; high recording density; laser bumps; laser induced capillary effects; laser surface melting; laser-induced microtexture; low flying height; low stiction; topography; Argon; Cascading style sheets; Control systems; Cooling; Disk recording; Magnetic heads; Optical control; Surface emitting lasers; Surface texture; Surface topography;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706710

Filename

706710