Perpendicular recording head with shaped pole surfaces for...

Details Perpendicular recording head with shaped pole surfaces for... Perpendicular recording head with shaped pole surfaces for...

2011-01-11

2011-01-11

Renner, Craig A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Gap spacer

C360S122000, C360S125030, C360S125300

Reexamination Certificate

active

07869160

ABSTRACT:
A perpendicular recording head is provided having a bottom pole, a writer pole disposed above the bottom pole, and a top shield disposed above the writer pole. The bottom pole and the top shield are both magnetically coupled to the writer pole. The writer pole includes a concave facing surface that faces the top shield. The top shield can include a convex surface that faces the writer pole. The top shield can also include a pedestal that protrudes towards the writer pole.

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