Organic buildup on slider leading edge tapers and its effect on wet stiction

Author

Xuan, Jack ; Chen, Ga-Lane ; Chao, James

Author_Institution

HMT Technology, Fremont, CA, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3948

Lastpage

3950

Abstract

The phenomenon of organic mixture buildup on slider leading edge tapers (LETs) was studied experimentally by conducting contact start/stop (CSS) tests in a humidity chamber. The effect of organic buildup on wet stiction performance of head/disk interface (HDI) was investigated. It is found that high humidity leads to higher rate of PFPE lubricant loss at disk landing zone and significant material buildup at the end of head slider LET surfaces. Such changes at the HDI cause irreversible high stiction, large stiction modulation, and, therefore, shorter CSS life. Organic silicone vapor film from silicone outgassing speeds up to the buildup process and leads to early HDI failure. Reducing LET organic buildup can extend wet CSS life

Keywords

environmental testing; lubrication; magnetic disc storage; magnetic heads; PFPE lubricant loss; contact start/stop tests; disk landing zone; head/disk interface; humidity chamber; organic mixture buildup; silicone outgassing; silicone vapor film; slider leading edge tapers; stiction modulation; wet stiction; Cascading style sheets; Humidity; Lubricants; Magnetic heads; Optical microscopy; Rough surfaces; Scanning electron microscopy; Surface contamination; Surface roughness; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281352

Filename

281352