A resistive ferrite substrate for the GMR head in a digital tape system

Author

Soda, Yutaka ; Ito, Yukinobu ; Kobayashi, Izumi ; Takekuma, Hirofumi ; Takahashi, Yoshimi

Author_Institution

Yokohama Res. Center, Sony Corp., Kanagawa, Japan

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2218

Lastpage

2220

Abstract

In helical-scan tape systems using a giant magnetoresistive (GMR) head, there are two threats to reliability, electrostatic discharge, and head wear. To avoid damage by electrostatic discharge, a conductive substrate can allow the discharge current to bypass the GMR head. The type of substrate used for the head is important in minimizing head wear. We investigated what type of substrate is most suitable for the GMR head in a helical-scan tape system.

Keywords

electrostatic discharge; ferrites; giant magnetoresistance; magnetic heads; reliability; substrates; tape recorders; wear; GMR head; conductive substrate; digital tape system; discharge current; electrostatic discharge; giant magnetoresistive head; head wear minimization; helical-scan tape systems; resistive ferrite substrate; Conducting materials; Current measurement; Electrical resistance measurement; Electrostatic discharge; Ferrites; Indium tin oxide; Insulation; Magnetic heads; Surface discharges; Surface resistance; Digital tape system; GMR; electrostatic discharge; giant magenetoresistive; head; resistive ferrite substrate;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.829269

Filename

1325458