Method and apparatus for providing a magnetic read sensor...

Details Method and apparatus for providing a magnetic read sensor... Method and apparatus for providing a magnetic read sensor...

2011-01-18

2011-01-18

Blouin, Mark (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07872837

ABSTRACT:
A method and apparatus for providing a magnetic read sensor having a thin pinning layer and improved magnetoresistive coefficient ΔR/R is disclosed. A thin IrMn alloy pinning layer is disposed adjacent a composite pinned layer, wherein the percentage of iron in the pinned layer adjacent the thin IrMn alloy pinning layer in the range of 20-40% to provide maximum pinning.

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