Method for manufacturing magnetic head

Details Method for manufacturing magnetic head Method for manufacturing magnetic head

2006-10-24

2006-10-24

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603140, C029S603150, C029S603180, C360S125020

Reexamination Certificate

active

07124498

ABSTRACT:
A non-magnetic material layer which is formed with a taper region of which the film thickness is gradually reduced over the top surface and the side of an upper core layer and the side of the gap layer is formed by cutting the gap layer and the upper core layer on a lower core layer with a track width and the lower periphery of the taper region is contacted with the top surface of the lower core layer. On the top surface of the lower core layer extending from the lower periphery of the taper region to the both sides, the slopes inclined in the direction apart from the upper core layer are formed and a protrusion having a track width is formed on the lower core layer. The material layer having the same material as the lower core layer adhered to the outside of the non-magnetic material layer is removed.

REFERENCES:
patent: 4799118 (1989-01-01), Yamada et al.
patent: 5600519 (1997-02-01), Heim et al.
patent: 5867890 (1999-02-01), Hsiao et al.
patent: 6441995 (2002-08-01), Sasaki
patent: 6515824 (2003-02-01), Sato
patent: 2001-143222 (2001-05-01), None

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