Method for manufacturing magnetic sensing element having...

Details Method for manufacturing magnetic sensing element having... Method for manufacturing magnetic sensing element having...

2005-06-07

2005-06-07

Sheehan, John P. (Department: 1742)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603130, C029S603140, C148S108000, C360S112000

Reexamination Certificate

active

06901652

ABSTRACT:
A method for manufacturing magnetic sensing elements for use in magnetic sensors and hard disks. A ferromagnetic layer and a second antiferromagnetic layer are deposited on a nonmagnetic layer having a uniform thickness. The second antiferromagnetic layer is milled to form an indent. The resulting magnetic sensing element has a free magnetic layer reliably set in a single-magnetic-domain state in the track width direction.

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patent: 6648985 (2003-11-01), Saito et al.
patent: 2001/0012188 (2001-08-01), Hasegawa et al.
patent: 2003/0053269 (2003-03-01), Nishiyama
patent: 2000-348309 (2000-12-01), None
patent: 2001-52315 (2001-02-01), None

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