Method and apparatus for providing a self-pinned bias layer...

Details Method and apparatus for providing a self-pinned bias layer... Method and apparatus for providing a self-pinned bias layer...

2006-07-04

2006-07-04

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07072154

ABSTRACT:
A method and apparatus for enhancing thermal stability, improving biasing and reducing damage from electrical surges in self-pinned abutted junction heads. The head includes a free layer having a first end and a second end defining a width selected to form a desired trackwidth and an extended self-pinned bias layer extending beyond the ends of the free layer, the self-pinned bias layer extending beyond the free layer increasing the volume of the extended self-pinned bias layer to provide greater thermal stability and stronger pinning of the free layer.

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