Method of fabricating a perpendicular recording write head...

Details Method of fabricating a perpendicular recording write head... Method of fabricating a perpendicular recording write head...

2007-07-24

2007-07-24

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S125330

Reexamination Certificate

active

10837350

ABSTRACT:
A method of fabricating a write head for perpendicular recording is provided. The write head has a pole, a shield in proximity to the pole, and a gap between the pole and the shield. The method includes forming a pole layer on an undercoat layer, forming a mask over at least a portion of the pole layer, and forming the pole by removing material from the pole layer. The pole has a top surface, a first side, and a second side. The method further includes forming a first gap portion of the gap along the first side and along the second side of the pole, forming a protective layer over at least a portion of the first gap portion, removing the mask, and removing the protective layer. The method further includes forming a second gap portion of the gap over at least the top surface of the pole and forming the shield over at least the second gap portion.

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U.S. Appl. No. 09/933,508, Chen et al., pending.
M. Mallary et al., “One Terabit per Square Inch Perpendicular Recording Conceptual Design”, IEEE Transactions on Magnetics, vol. 38, pp. 1719-1724 (2002).

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