Title :
Recording Characteristics of Single Pole Thin Film Head
Author :
Yamashita, M. ; Suenaga, T. ; Mine, H. ; Wada, T.
Author_Institution :
Denki Kagaku Kogyo Co.,s Ltd.
Abstract :
The recording characteristics of single-pole thin film heads were investigated. Both a narrow track and a high linear recording density are necessary for high areal density recording. Single-pole thin film heads with the main pole thickness varied between 0.15 ¿m and 1.1 ¿m were trial-manufactured, and the recording characteristics were examined using a Co-Cr-Pt/Ni-Fe perpendicular magnetic recording medium. At a main pole thickness of 0.2 ¿m, a C/N ratio of 41 dB, media noise of 2.4 ¿Vrms and overwrite level of ¿30 dB were confirmed.
Keywords :
Chromium; Coils; Ferrites; Insulation life; Magnetic films; Magnetic heads; Magnetics Society; Perpendicular magnetic recording; Polyimides; Transistors;
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
DOI :
10.1109/TJMJ.1991.4565265
