Method of making thin film merged magnetoresistive heads

Details Method of making thin film merged magnetoresistive heads Method of making thin film merged magnetoresistive heads

1997-04-18

1999-03-02

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Electrical device making

G11B 5127

Patent

active

058755420

ABSTRACT:
Methods for fabricating merged magnetic heads, employing an inductive write head and a magnetoresistive (MR) read head which share portions of the overall magnetic structure, provide for accurate definition of the write track width and for improved alignment of the write gap and the read gap. The method includes accurately forming and defining the nonmagnetic write gap prior to fabricating the inductive write coil structure and subsequently formed higher topology elements. The methods provide for better control of the widths of the top pole member and the bottom pole member, thereby resulting in substantially equal widths for these pole members.

REFERENCES:
patent: 5438747 (1995-08-01), Krounbi et al.
patent: 5665251 (1997-09-01), Robertson et al.

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