Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Reexamination Certificate
2007-01-23
2007-01-23
Sheehan, John P. (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
C029S603130
Reexamination Certificate
active
10692550
ABSTRACT:
Magnetic tunnel junction (MTJ) and charge perpendicular-to-plane (CPP) magnetic sensors are disclosed which have a first antiferromagnetic layer for pinning the magnetization direction in a pinned layer and a second antiferromagnetic layer for providing bias stabilization of a free layer. The two antiferromagnetic layers may be formed from the same material and using a spin-flop effect may be initialized simulataneously. A disk drive using these sensors is disclosed.
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Hitachi Global Storage Technologies - Netherlands B.V.
Patterson & Sheridan L.L.P.
Sheehan John P.
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