Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-12-18
2007-12-18
Castro, Angel (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S324100, C360S324110
Reexamination Certificate
active
10954803
ABSTRACT:
A magnetoresistive sensor having hard bias layers constructed of CoPtCrB, which high coercivity when deposited over crystalline materials such as an AFM layer or other sensor material. The bias layer material exhibits high coercivity and high moment even when deposited over a crystalline structure such as that of an underlying sensor material by not assuming the crystalline structure of the underlying crystalline layer. The bias layer material is especially beneficial for use in a partial mill sensor design wherein a portion of the sensor layers extends beyond the active area of the sensor and the bias layer must be deposited on the extended portion of sensor material.
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Freitag James Mac
Pinarbasi Mustafa Michael
Castro Angel
Hitachi Global Storage Technologies - Netherlands B.V.
Magee Christopher R.
Zilka-Kotab, PC
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