Pole tip structure for thin film magnetic heads

Details Pole tip structure for thin film magnetic heads Pole tip structure for thin film magnetic heads

1994-08-18

1996-01-30

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147

Patent

active

054885280

ABSTRACT:
A horizontal thin film magnetic head is provided which has well aligned pole tips. The head includes first and second seedlayers, the first and second seedlayers being located below a first pole tip and only the second seedlayer being located below the second pole tip. The first pole tip may be capped with a nonmagnetic material such as copper. A very narrow sidegap is employed between the first and second pole tips.

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patent: 5200056 (1993-04-01), Cohen et al.
patent: 5375023 (1994-12-01), Ju et al.
M. Umesaki et al., "A New Horizontal Thin Film head", IEEE Transaction on Magnetics, vol. 27, No. 6, Nov. 1991, pp. 4933-4935.
J. P. Lazzari et al., "A New thin Film head Generation IC Head", IEEE Transactions on magnetics, vol. 25, No. 5, Sep. 1989, pp. 3190-3193.

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