Title :
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
fDate :
7/1/2004 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.829269
