Magnetic head for perpendicular magnetic recording and...

Details Magnetic head for perpendicular magnetic recording and... Magnetic head for perpendicular magnetic recording and...

2011-08-09

2011-08-09

Renner, Craig A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C029S603150, C360S125220

Reexamination Certificate

active

07995308

ABSTRACT:
A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.

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