Thin film magnetic head

Details Thin film magnetic head Thin film magnetic head

1998-12-18

2000-11-07

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

G11B 5127

Patent

active

061445339

ABSTRACT:
The present invention relates to a thin film magnetic head that achieves low NLTS and demonstrates outstanding O/W characteristics in a high frequency range. A first magnetic film and a second magnetic film face opposite each other over a gap film at a side where a surface facing opposite the medium is present. A first yoke and a second yoke, which extend rearward on the opposite side from the surface facing opposite the medium, are linked to each other at a rear linking portion. A coil film, which is supported by an insulating film, is provided in a coil around the rear linking portion. N/YL.gtoreq.0.2 (turns/.mu.m) is satisfied, with YL (.mu.m) representing the distance from the surface facing opposite the medium to the rear linking portion and N (turns) representing the number of turns of the coil film.

REFERENCES:
patent: 5438747 (1995-08-01), Krounbi et al.
patent: 5452164 (1995-09-01), Cole et al.
Y. Tang, et al. "A Technique for Measuring Nonlinear Bit Shift", IEEE Transactions on Magnetics, vol. 27 No. 6, Nov. 1991, pp. 5316-5318.
Pradeep Thayamballi, "Modeling the Effects of Write Field Rise Time on the Recording Properties in Thin Film Media", IEEE Transactions on Magnetics, vol. 32 No. 1, Jan. 1996, pp.61-66.

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