Method for manufacturing thin film head

Details Method for manufacturing thin film head Method for manufacturing thin film head

2006-11-21

2006-11-21

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603070, C029S603140, C029S603270, C360S324000, C360S324120, C360S325000, C360S326000, C360S327000, C427S127000, C427S128000

Reexamination Certificate

active

07137192

ABSTRACT:
A thin film head comprising a GMR element formed of an antiferromagnetic layer, a pinning layer, a nonmagnetic conductive layer and a free magnetic layer; and a pair of the right and the left laminated longitudinal biasing layers, each of the layers containing a hard magnetic layer, a nonmagnetic layer and a soft magnetic layer provided on said free magnetic layer of GMR element. Said hard magnetic layer and said soft magnetic layer are antiferromagnetically exchange-coupled via said nonmagnetic layer, and said hard magnetic layer and said free magnetic layer locating next to said hard magnetic layer are ferromagnetically coupled. The present invention contains also a method for manufacturing the thin film head.

REFERENCES:
patent: 5465185 (1995-11-01), Heim et al.
patent: 5508866 (1996-04-01), Gill et al.
patent: 5896252 (1999-04-01), Kanai
patent: 6266218 (2001-07-01), Carey et al.

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