Thin film magnetic head and manufacturing method thereof

Details Thin film magnetic head and manufacturing method thereof Thin film magnetic head and manufacturing method thereof

2008-07-01

2008-07-01

Klimowicz, William J. (Department: 2627)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603140, C360S122000, C360S125460

Reexamination Certificate

active

07392578

ABSTRACT:
A method for manufacturing a thin film magnetic head with a write element, the write element having a first yoke portion and a second yoke portion connected to each other by a back gap portion, a first pole portion and a second pole portion disposed in the medium-facing surface side of the first yoke portion and the second yoke portion respectively, a gap film disposed between the first pole portion and the second pole portion, and a coil surrounding in a spiral form the back gap portion, and the manufacturing method including the steps of forming the coil above the first yoke portion, forming a part which the first pole portion is composed of so that the part extends to cover the upper surface of the coil, forming the gap film on the first pole portion, forming the second yoke portion, which includes the second pole portion, above the gap film, and trimming the first pole portion so as to have a width fitting the second pole portion.

REFERENCES:
patent: 6043959 (2000-03-01), Crue et al.
patent: 6259583 (2001-07-01), Fontana, Jr. et al.
patent: 6466401 (2002-10-01), Hong et al.
patent: 6975486 (2005-12-01), Chen et al.
patent: 7009812 (2006-03-01), Hsu et al.
patent: 7060207 (2006-06-01), Sasaki et al.
patent: 7062839 (2006-06-01), Sasaki et al.

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