Disk roughness and its influence on the performance of proximity recording sliders

Author

Hua, Wei ; Liu, Bo ; Sheng, Gang

Author_Institution

Data Storage Inst., Singapore

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2460

Lastpage

2462

Abstract

This paper studies the influence of disk roughness on the performance of proximity recording sliders by both experimentation and simulation. Experimental results indicate that the disk roughness plays an important role in whether or not the sliders can fully fly, even though all the other conditions are the same. Such phenomena are further studied with a self-developed probability model. The simulation results are well correlated with the testing results. Investigations are further extended to the surface roughness requirement of both the air-bearing surface and the disk surface for the slider/disk interface with 5 nm to 15 nm head/disk spacing

Keywords

disc drives; hard discs; magnetic heads; probability; rough surfaces; surface topography; 5 to 15 nm; air-bearing surface; disk roughness; hard disc drive; hard disc surface; head/disk spacing; probability model; proximity recording sliders; simulation; slider/disk interface; Computational modeling; Disk recording; Employee welfare; Hard disks; Magnetic recording; Memory; Rough surfaces; Surface roughness; Testing; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800858

Filename

800858