Giant magnetoresistance sensor with side longitudinal bias...

Details Giant magnetoresistance sensor with side longitudinal bias... Giant magnetoresistance sensor with side longitudinal bias...

2005-07-11

2008-10-28

Chen, Tianjie (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07443637

ABSTRACT:
A giant magnetoresistance (GMR) sensor with side longitudinal bias (LB) stacks is proposed for magnetic recording at ultrahigh densities. The GMR sensor extends from a read region into two side regions. The side LB stacks overlies the GMR sensor in the two side regions, rigidly pinning sense layers through antiparallel coupling across an antiparallel coupling spacer layer. Magnetostatic interactions occur in the sense layers between the read and side regions, thereby stabilizing the sense layers in the read region.

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