Oliff & Berridge, PLC
Thin-film magnetic head having coil of varying thinknesses in spaces adjacent the main magnetic pole
A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The thin-film coil has a coil-layer. The coil-layer has a turn part arranged closer to an ABS than is a rear end part of the main magnetic pole layer farthest from the ABS. Regarding a substrate side coil-layer, arranged between the main magnetic pole layer and the substrate, of the coil-layer, a thickness of a non-corresponding magnetic pole part other than a magnetic pole corresponding part corresponding to an arrangement space of the main magnetic pole layer is larger than a thickness of the magnetic pole corresponding part.
SAE Magnetics (H.K.) Ltd. Headway Technologies, Inc.
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G11B G11B G11B Y10T
inventional inventional inventional additional
Yoshitaka Kazuki Hiroyuki Atsushi
Sasaki Sato Ito Iijima