Robust design of write head to minimize side-fringing and its variation

Author

Wang, Hongtao ; Liu, Zhejie ; Wu, Yihong ; You, Dan

Author_Institution

Data Storage Inst., Singapore

Volume

40

Issue

2

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

1236

Lastpage

1239

Abstract

The fringing field of the write element of the merged magnetoresistive head is minimized while restraining its deviation due to uncontrollable factors, such as variability in material properties and geometry dimensions. The finite-element method is applied in combination with the response-surface methodology to search for the robust design of write head. The influence of the geometrical parameters of write heads on the fringing field and its deviation is investigated. Comparison among normal design, optimal design, and robust solution is also carried out in the work.

Keywords

disc drives; finite element analysis; hard discs; magnetic heads; magnetoresistive devices; finite-element analysis; finite-element method; fringing field; geometrical parameters; magnetoresistive head; response-surface methodology; robust design; side fringing; write head; Computational modeling; Design engineering; Design optimization; Finite element methods; Magnetic heads; Magnetoresistance; Pulse measurements; Robustness; Signal to noise ratio; Space vector pulse width modulation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.824577

Filename

1284643