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11. 发明授权

US06477007B1 Planar writer for merged GMR recording head 有权
标题翻译：平面作家兼并GMR录音头
公开(公告)号：US06477007B1
公开(公告)日：2002-11-05
申请号：US09649985
申请日：2000-08-29
申请人： Alexander M. Shukh , Edward S. Murdock , Steven A. Mastain , James K. Price
发明人： Alexander M. Shukh , Edward S. Murdock , Steven A. Mastain , James K. Price
IPC分类号： G11B5147
CPC分类号： G11B5/3146 , G11B5/3109 , G11B5/3116 , G11B5/313 , Y10S977/934
摘要： A magnetic recording head having an air bearing surface comprises a writer having a substantially planar single piece top pole, a shared pole and a conductive coil. The top pole and shared pole are separated by a write gap region. A magnetic stud is positioned adjacent the write gap region near the air bearing surface. The magnetic stud provides a uniform magnetic flux supply to the write gap region. The magnetic stud has a variable height along the air bearing surface. An inner surface of the magnetic stud substantially conforms to an outer surface of the conductive coil. The shared pole includes a recess, and at least a portion of the conductive coil is positioned in the recess. The recess in the shared pole is filled with an insulator that substantially surrounds the portion of the conductive coil positioned in the recess. A capping layer is formed on the portion of the conductive coil positioned in the recess. The shared pole includes a common top surface comprising a top surface of the magnetic stud, a top surface of the insulator and a top surface of the capping layer. The common top surface is made substantially planar by chemical-mechanical polishing.
摘要翻译：具有空气轴承表面的磁记录头包括具有基本上平面的单片顶极，共享极和导电线圈的写入器。顶极和共用极被写入间隙区分开。磁性螺柱位于靠近空气轴承表面的写入间隙区域附近。磁性螺柱为写入间隙区域提供均匀的磁通量。磁性螺柱沿空气轴承表面具有可变的高度。磁性螺柱的内表面基本上符合导电线圈的外表面。共享极包括凹部，并且导电线圈的至少一部分定位在凹部中。共享极中的凹部填充有基本上围绕定位在凹部中的导电线圈的部分的绝缘体。在位于凹部中的导电线圈的部分上形成覆盖层。共享极包括公共顶表面，其包括磁柱的顶表面，绝缘体的顶表面和覆盖层的顶表面。公共顶表面通过化学机械抛光制成基本平坦的。

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