Stabilizing domains in inductive thin film heads

Details Stabilizing domains in inductive thin film heads Stabilizing domains in inductive thin film heads

1992-12-07

1995-01-31

Dang, Thi

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

29603, G11B 500

Patent

active

053856376

ABSTRACT:
A method and means for reducing readback non-repeatability in thin film heads due to non-repeatablele domain structure, comprising the steps of depositing a layer of antiferromagnetic material, such as MnFe, to create larger uniaxial anisotropy, and localizing such a layer in the upper magnetic pole to improve head performance without sacrificing efficiency. In a particular implementation, alternating layers of NiFe/MnFe/NiFe, each 500 Angstroms thick, are deposited, followed by a sputtered seed layer for subsequent plating. After lapping to correct throat height, the head is then heated above the Neel temperature of MnFe and cooled in the presence of an applied magnetic field.

REFERENCES:
patent: 3781476 (1973-12-01), Hanazono et al.
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4809109 (1989-02-01), Howard et al.
patent: 4814921 (1989-03-01), Hamakawa et al.
patent: 5032945 (1991-07-01), Argyle et al.
patent: 5262914 (1993-11-01), Chen et al.

Affiliated with

Also associated with

Rating

Stabilizing domains in inductive thin film heads does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilizing domains in inductive thin film heads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilizing domains in inductive thin film heads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1100695