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    • 91. 发明授权
    • Thin film magnetic head and method of manufacturing the same
    • 薄膜磁头及其制造方法
    • US06801407B2
    • 2004-10-05
    • US10067911
    • 2002-02-08
    • Yoshitaka SasakiTakehiro Kamigama
    • Yoshitaka SasakiTakehiro Kamigama
    • G11B531
    • B82Y25/00B82Y10/00G11B5/313G11B5/3163G11B5/3967G11B2005/3996Y10T29/49044
    • A write gap film and a first magnetic material film are formed on a bottom pole, a first non-magnetic film is formed in a space formed by etching a portion of the first magnetic material film other than a portion extending from an air bearing surface to a throat height zero reference position to constitute a flat coplanar surface with the first magnetic material film, a second magnetic material film is formed on the flat coplanar surface, a two-layer track pole consisting of a top track pole and a bottom track pole is formed in a self-aligned manner by removing by RIE the second magnetic material film, first magnetic material film, write gap film and a part of the bottom pole, a second non-magnetic material film is formed to have a flat coplanar surface with the top track pole, and a thin film coil is formed on the flat coplanar surface. The thin film coil includes first and second thin film coil halves formed in a self-aligned manner, an insulating film interposed between successive coil windings of the first and second thin film coil halves and a jumper wiring electrically connecting an innermost coil winding of the first thin film coil half to an outermost coil winding of the second thin film coil half. Finally a top pole is formed such that one end of the top pole is magnetically coupled with the top track pole and the other end of the top pole is magnetically coupled with the bottom pole at a back gap.
    • 写入间隙膜和第一磁性材料膜形成在底极上,第一非磁性膜形成在通过蚀刻除了从空气轴承表面延伸的部分之外的第一磁性材料膜的一部分而形成的空间 构成与第一磁性材料膜的平坦共面的喉部高度零参考位置,在平坦共面上形成第二磁性材料膜,由顶部轨道杆和底部轨道杆组成的两层轨道极 通过RIE除去第二磁性材料膜,第一磁性材料膜,写入间隙膜和底部的一部分,以自对准的方式形成第二非磁性材料膜,以形成平面共面 顶轨,在平面共面上形成薄膜线圈。 薄膜线圈包括以自对准方式形成的第一和第二薄膜线圈半部,插入在第一和第二薄膜线圈半部的连续线圈之间的绝缘膜,以及将第一和第二薄膜线圈的最内侧线圈绕组电连接的第一 薄膜线圈一半到第二薄膜线圈的最外线圈绕组一半。 最后,顶极形成为使得顶极的一端与顶部轨道磁极耦合,并且顶部磁极的另一端在后部间隙处与底部磁极耦合。
    • 93. 发明授权
    • Low profile disk drive unit
    • 低调磁盘驱动器单元
    • US07626811B2
    • 2009-12-01
    • US11878773
    • 2007-07-26
    • Takehiro KamigamaMasahiko FujiokaYiuSing HoYi Wan
    • Takehiro KamigamaMasahiko FujiokaYiuSing HoYi Wan
    • G06F1/16
    • G11B33/123
    • A low profile disk drive unit includes a disk; a HSA cooperating with the disk; a base plate comprising a bottom portion for supporting the disk and the head stack assembly thereon and a base plate sidewall extending from circumference of the bottom portion; and a top cover comprising a top portion and a top cover sidewall extending from circumference of the top portion and assembled with the base plate; wherein the top cover sidewall is thinner than the base plate sidewall, and the base plate sidewall is lower than the disk with the bottom portion as a reference datum so as to define an airflow channel between a periphery of the disk and the top cover sidewall of the top cover.
    • 低档盘驱动器单元包括盘; HSA与磁盘协作; 底板,其包括用于支撑盘的底部部分和其上的头部堆叠组件,以及从底部的圆周延伸的底板侧壁; 以及顶盖,其包括从所述顶部的圆周延伸并与所述基板组装的顶部和顶盖侧壁; 其中所述顶盖侧壁比所述基板侧壁更薄,并且所述基板侧壁低于所述盘的底部,作为参考基准,以便在所述盘的周边与所述盘的外围侧壁之间限定气流通道 顶盖。