Investigation of particle generation in a hard disk drive during the start/stop period

Author

Park, Hee-Sung ; Yoo, Yong-Cheol ; Bae, Gwi-Nam ; Hwang, Jung-Ho

Author_Institution

Dept. of Mech. Eng., Yonsei Univ., Seoul, South Korea

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2439

Lastpage

2441

Abstract

Particle contamination in a hard disk drive has been recognized as an important issue because particles can significantly affect the reliability of the drive. In this study, characteristics of the particle generation in a hard disk drive during the start/stop period were investigated. The number of particles generated in the drive was measured at 5 locations using CNC (condensation nucleus counter) with a sampling probe. It was found that most of the particles were generated whenever the drive started or stopped. The number of particles detected by the condensation nucleus counter depended on parameters including sampling location and sampling velocity

Keywords

disc drives; hard discs; reliability; wear; condensation nucleus counter; hard disk drive; particle generation; reliability; sampling location; sampling probe; sampling velocity; start/stop period; Character generation; Computer numerical control; Contamination; Counting circuits; Drives; Hard disks; Nuclear measurements; Particle measurements; Pollution measurement; Sampling methods;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800851

Filename

800851