Thin-film magnetic head and manufacturing method thereof

Details Thin-film magnetic head and manufacturing method thereof Thin-film magnetic head and manufacturing method thereof

2011-03-29

2011-03-29

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S324120

Reexamination Certificate

active

07916430

ABSTRACT:
A thin-film magnetic head includes a lower magnetic shield layer, an MR multi-layered structure formed on the lower magnetic shield layer so that current flows in a direction perpendicular to surfaces of laminated layers, an upper magnetic shield layer formed on the MR multi-layered structure, and an additional lower magnetic shield layer directly laminated on the lower magnetic shield layer outside both side ends in a track-width direction of the MR multi-layered structure. The additional lower magnetic shield layer is directly contacted with both side surfaces in a track-width direction of the MR multi-layered structure. A top surface of the additional lower magnetic shield layer is positioned higher in height than a top surface of the lower magnetic shield layer in a region where the MR multi-layered structure is formed.

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U.S. Appl. No. 11/735,730, filed in the name of Kagami et al. on Apr. 16, 2007.

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