Track density constraints in the application of MR head technology

Author

Chopra, Kiran ; Grammens, Gerald M. ; Weinstein, Robert E.

Author_Institution

Storage Technol. Corp., Louisville, CO, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2728

Lastpage

2730

Abstract

A disk drive track density model has been developed for dual-element recording heads using a magnetoresistive (MR) reader and an inductive writer. In addition to the usual track misregistration issues, it is shown that the head fabrication tolerances and the spacing between the read and write elements limit track density with a rotary actuator due to skew misalignment. A systems solution of micropositioning that minimizes such problems is proposed

Keywords

hard discs; magnetic heads; magnetic recording; magnetoresistive devices; MR head technology; MR reader; disk drive track density model; dual-element recording heads; head fabrication tolerances; inductive writer; magnetoresistive heads; micropositioning; read head; read/write head spacing; rotary actuator; skew misalignment; systems solution; track density constraints; track density limitations; track misregistration; write head; Disk drives; Disk recording; Fabrication; Hydraulic actuators; Magnetic heads; Magnetic separation; Monte Carlo methods; Pneumatic actuators; Predictive models; Servomechanisms;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179610

Filename

179610