Comb-shape Patterned Clamp/Spacer for Improvement of Recirculation Filter Efficiency in Hard Disk Drive

Author

Park, Sung-Eun ; Lee, Dae-Young ; Kang, Tae-Sik ; Hwang, Jungho

Author_Institution

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

fYear

2006

fDate

Nov. 29 2006-Dec. 1 2006

Firstpage

1

Lastpage

2

Abstract

Increased disk rotational speed of hard disk drive and contamination by nanoparticles can cause serious problems including thermal asperity (TA). In this study, the filtration efficiency of recirculation filter system in the hard disk drive was investigated with various particle contamination locations and disk rotational speeds. In result, the filtration efficiency was clearly affected by the particle-generated location. The filter efficiency of nanoparticles generated at the center side of disk surface was lower than that at the edge side of the disk. For improving the filter efficiency, we added a comb-shape pattern to hard disk clamp and spacer. And improved filter efficiency was observed with various comb angles and disk rotational speeds

Keywords

clamps; contamination; disc drives; hard discs; nanoparticles; TA; comb-shape pattern; hard disk drive clamp; nanoparticle contamination; recirculation filter; spacer; thermal asperity; Angular velocity; Clamps; Drag; Filters; Filtration; Hard disks; Manufacturing; Nanoparticles; Surface contamination; Viscosity; Clamp; Hard disk drive; Particle contamination; Recirculation filter; Spacer;

fLanguage

English

Publisher

ieee

Conference_Titel

Asia-Pacific Magnetic Recording Conference, 2006

Conference_Location

Singapore

Print_ISBN

1-4244-0863-6

Type

conf

DOI

10.1109/APMRC.2006.365932

Filename

4215317