Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2008-05-06
2008-05-06
Chen, Tianjie (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
11204452
ABSTRACT:
A magnetoresistive sensor having a pinned layer that extends beyond the stripe height defined by the free layer of the sensor. The extended pinned layer has a strong shape induced anisotropy that maintains pinning of the pinned layer moment. The extended portion of the pinned layer has sides beyond the stripe height that are perfectly aligned with the sides of the sensor within the stripe height. This perfect alignment is made possible by a manufacturing method that uses a mask structure for more than one manufacturing phase, eliminating the need for multiple mask alignments.
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Freitag James Mac
Ho Kuok San
Pinarbasi Mustafa Michael
Tsang Ching Hwa
Chen Tianjie
Hitachi Global Storage Technologies - Netherlands B.V.
Zilka-Kotab, PC
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