Method of manufacturing a thin film magnetic head

Details Method of manufacturing a thin film magnetic head Method of manufacturing a thin film magnetic head

2005-03-22

2005-03-22

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603230, C029S603250, C029S603120, C029S603150, C029S603140, C029S603180, C360S122000, C360S123090, C216S022000

Reexamination Certificate

active

06868600

ABSTRACT:
A method of manufacturing a thin film magnetic head having superior overwrite characteristics as well as an extremely small pole width is disclosed. The thin film magnetic head has a thin film coil provided in a recess region of a bottom pole. This makes it possible to appropriately ensure a thickness of the thin film coil, as well as to reduce a thickness of a second pole tip portion, and therefore it is possible to ensure superior overwrite characteristics, as well as to form the second pole tip portion having an extremely small uniform width. The method of manufacturing a thin film magnetic head forms a recess region in a second magnetic layer close to a first magnetic layer, and forms a first thin film coil for constituting a part of the thin film coil in the recess region.

REFERENCES:
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patent: A-08-147625 (1996-06-01), None
patent: A-10-269524 (1998-10-01), None
patent: A-2000-182212 (2000-06-01), None
Well et al, “Magnetic Domains in Thin-Film Recording Heads as Observed in the SEM by a Lock-In Technique”, IEEE Transactions on Magnetics, No. 3, May 1981, pp. 1253-1261.

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