Dual write gap perpendicular recording head with a...

Details Dual write gap perpendicular recording head with a... Dual write gap perpendicular recording head with a...

2011-01-11

2011-01-11

Davis, David D (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07869161

ABSTRACT:
A perpendicular recording head for a hard disk drive. The head includes a non-magnetic backside shield that minimizes or eliminates the flow of backside flux through the head. The head can be fabricated by forming a non-magnetic backside shield layer on a main pole. Portions of the backside shield and main pole can be removed to form a tapered pole portion. A non-magnetic write-gap layer and write shield are then formed onto the backside shield and main pole.

REFERENCES:
patent: 5311385 (1994-05-01), Schwarz et al.
patent: 7212379 (2007-05-01), Hsu et al.

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