发明名称 Magnetic read/write device with insulated coil layer recessed into pole
摘要 A write element for recording data on a magnetic medium includes a first pole and a second pole separated by a non-magnetic, electrically insulating write gap layer. In addition, a coil layer is recessed into the first pole and is electrically insulated from the first pole by a coil insulation layer, and form the second pole by a coil separation layer. The coil layer includes at least one coil turn, each of which are transversely separated from an adjacent coil turn by a coil turn divider. In some embodiments, the coil turn dividers are integral with and therefore formed of the same material as the first pole. The coil layer, first pole, and coil turn dividers are planarized before formation of the coil separation layer. Also, a second pole pedestal can be connected to the second pole at the air bearing surface, and separated from the first pole by the write gap layer. A highly heat conductive material can be disposed below the first pole as an undercoat. Such an undercoat can facilitate dispersion of heat that is generated by a current passing through the coil layer, away from other components of the write element. In addition, the write element can be formed in conjunction with a read element to form a read/write head. The read element can be formed above the write element, with the coil layer embedded in the first pole which is distal the read element.
申请公布号 US6466404(B1) 申请公布日期 2002.10.15
申请号 US20010994436 申请日期 2001.11.26
申请人 READ-RITE CORPORATION 发明人 CRUE, JR. BILLY W.;APPARAO RENUKA;SHI ZHUPEI;YOUNG KEN;SEYMOUR MARK
分类号 G11B5/31;G11B5/39;(IPC1-7):G11B5/147 主分类号 G11B5/31
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