Thin-film magnetic head and method of manufacturing same

Details Thin-film magnetic head and method of manufacturing same Thin-film magnetic head and method of manufacturing same

2005-02-01

2005-02-01

Davis, David (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

C360S119050

Reexamination Certificate

active

06850390

ABSTRACT:
A thin-film magnetic head comprises first and second magnetic layers; a gap layer provided between the first and second magnetic layers; a coupling portion for magnetically coupling the first magnetic layer and the second magnetic layer to each other at a distance from the medium facing surface ABS; and a thin-film coil at least part of which is disposed between the first and second magnetic layers. The second magnetic layer has a pole portion layer and a yoke portion layer. The pole portion layer has a saturated magnetic flux density equal to or greater than that of the yoke portion layer. The yoke portion layer magnetically connects the upper end of the coupling portion and the rear end surface of the pole portion layer to each other.

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