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12 条记录 (耗时 0.024 秒)

    Method for making a thin film magnetic head
    1.
    发明授权
    Method for making a thin film magnetic head 失效
    制造薄膜磁头的方法

    公开(公告)号：US4861398A

    公开(公告)日：1989-08-29

    申请号：US123278

    申请日：1987-11-20

    申请人： Hirotsugu Fukuoka ,  Kanji Kawakami ,  Makoto Aihara ,  Mitsuo Suda ,  Kouji Takeshita ,  Yukihiro Isono

    发明人： Hirotsugu Fukuoka ,  Kanji Kawakami ,  Makoto Aihara ,  Mitsuo Suda ,  Kouji Takeshita ,  Yukihiro Isono

    IPC分类号： G11B5/31 ,  G11B5/455

    CPC分类号： G11B5/3166 ,  G11B5/455 ,  Y10T29/49036 ,  Y10T29/49044 ,  Y10T29/49046

    摘要： DC bias currents are applied to a conducting wire of a thin film magnetic head to be inspected. When the DC bias currents (I.sub.0, I.sub.1, I.sub.2) are supplied to the conducting wire, the impedances (Z.sub.0, Z.sub.1, Z.sub.2) corresponding to the DC bias currents are measured. When a ratio (.vertline.Z.sub.1 -Z.sub.0 .vertline./.vertline.Z.sub.2 -Z.sub.0 .vertline.) corresponding to an overwrite characteristic (OW) reaches to a predetermined value by lapping tip portions of an upper magnetic layer and a lower magnetic layer of the magnetic head, the lapping process of the magnetic head is finished.

    摘要翻译： 将直流偏置电流施加到待检查的薄膜磁头的导线上。 当直流偏置电流（I0，I1，I2）被提供给导线时，测量对应于直流偏置电流的阻抗（Z0，Z1，Z2）。 当通过研磨磁头的上部磁性层和下部磁性层的尖端部分而将与覆盖特性（OW）相对应的比率（| Z1-Z0 | / | Z2-Z0））达到预定值时，研磨 磁头的处理完成。

    Lap and lapping liquor
    4.
    发明授权
    Lap and lapping liquor 失效
    搭搭搭搭酒

    公开(公告)号：US5456736A

    公开(公告)日：1995-10-10

    申请号：US26576

    申请日：1993-03-05

    申请人： Yoshiharu Waki ,  Masayasu Fujisawa ,  Shigeo Aikawa ,  Kenya Ohashi ,  Yukihiro Isono

    发明人： Yoshiharu Waki ,  Masayasu Fujisawa ,  Shigeo Aikawa ,  Kenya Ohashi ,  Yukihiro Isono

    IPC分类号： B24B37/04 ,  C09K11/68

    CPC分类号： B24B37/04 ,  Y10S451/905

    摘要： This invention provides a lap capable of reducing the pole recession produced between the substrate and the magnetic film when the air-bearing surface of a thin-film magnetic head is lapped, a lapping liquor used for such lapping, and a thin-film magnetic head having its air-bearing surface lapped by using them. Lapping is carried out by using a lap made of a material having both a phase of tin and a phase of brass with a greater rigidity in supporting the abrasive grains than tin, and a lapping liquor prepared by mixing an anionic surfactant (15) and an ampholytic surfactant (16). According to the present invention, it is possible to reduce the pole recession in the thin-film magnetic heads and to accordingly shorten the recording bit length of the magnetic discs.

    摘要翻译： 本发明提供了一种能够减少在研磨薄膜磁头的空气轴承表面，用于研磨的研磨液和薄膜磁头的基板和磁性薄膜之间产生的极凹陷的搭接 通过使用它们的空气轴承表面进行研磨。 研磨是通过使用具有锡相和黄铜相的材料相比具有比锡更大的刚性支撑磨粒的材料制成的搭接，以及通过将阴离子表面活性剂（15）和 两性表面活性剂（16）。 根据本发明，可以减小薄膜磁头中的磁极退缩并相应地缩短磁盘的记录位长度。

    Thin film magnetic head preventing corrosion and thin film magnetic head slider, and methods of producing the same
    7.
    发明授权
    Thin film magnetic head preventing corrosion and thin film magnetic head slider, and methods of producing the same 失效
    薄膜磁头防腐蚀和薄膜磁头滑块及其制造方法

    公开(公告)号：US06747846B2

    公开(公告)日：2004-06-08

    申请号：US10075269

    申请日：2002-02-15

    申请人： Takahiro Kato ,  Noriyuki Saiki ,  Yukihiro Isono ,  Hiroshi Kikuchi

    发明人： Takahiro Kato ,  Noriyuki Saiki ,  Yukihiro Isono ,  Hiroshi Kikuchi

    IPC分类号： G11B540

    CPC分类号： G11B5/6005 ,  Y10T29/49032

    摘要： The present invention forms a conductor that is in electrically conductive contact, through an inside metal layer, with the magnetic thin film of the recording magnetic pole of a thin film magnetic head, and is also exposed to the outside. The equilibrium electrode potential of the conductor in an aqueous solution is set higher than that of the magnetic thin film, and its surface area is larger than the cross-sectional area of the magnetic thin film on the air bearing surface facing the magnetic recording medium. This makes it possible to retard corrosion of the recording magnetic thin film in the process of manufacturing thin film magnetic heads, whereby depletion of the magnetic thin film due to corrosion can be prevented, resulting in improved recording and reproducing qualities.

    摘要翻译： 本发明通过内部金属层与薄膜磁头的记录磁极的磁性薄膜形成导电接触的导体，并且还暴露于外部。 导体在水溶液中的平衡电极电位被设定为高于磁性薄膜的平衡电极电位，其表面积大于面向磁记录介质的空气轴承表面上的磁性薄膜的横截面面积。 这使得可以在制造薄膜磁头的过程中延缓记录磁性薄膜的腐蚀，由此可以防止由于腐蚀导致的磁性薄膜的耗尽，从而改善了记录和再现质量。

    Magnetic head slider and method of manufacturing the same
    10.
    发明授权
    Magnetic head slider and method of manufacturing the same 失效
    磁头滑块及其制造方法

    公开(公告)号：US07147540B2

    公开(公告)日：2006-12-12

    申请号：US10384310

    申请日：2003-03-06

    申请人： Hideaki Tanaka ,  Kenji Furusawa ,  Takateru Seki ,  Akio Takakura ,  Yukihiro Isono

    发明人： Hideaki Tanaka ,  Kenji Furusawa ,  Takateru Seki ,  Akio Takakura ,  Yukihiro Isono

    IPC分类号： B24B49/10

    CPC分类号： G11B5/6005 ,  Y10T29/49048

    摘要： In order to realize a shape of an air bearing surface of a magnetic head slider which is capable of coping with a lowering of flying height and which has high reliability, at the time of polishing the air bearing surface of the magnetic head slider by bringing the air bearing surface and the surface of a polishing machine into contact with each other, machining is conducted in the condition where the stiffness acting between both the members is enhanced, and the standard deviation of the flatness of the air bearing surface machined and the standard deviation of the recess amount between the air bearing surface and a magnetic element are controlled. Thus, it is possible to efficiently manufacture a magnetic head slider which enables driving at a low flying height.

    摘要翻译： 为了实现能够应对飞行高度的降低并且具有高可靠性的磁头滑块的空气轴承表面的形状，在通过使磁头滑块的空气支承表面进行研磨时， 空气轴承表面和抛光机的表面彼此接触，在两个构件之间作用的刚度增强的情况下进行机械加工，并且空气轴承表面的平面度的标准偏差和标准偏差 控制空气轴承表面和磁性元件之间的凹陷量。 因此，可以有效地制造能够以低飞行高度驾驶的磁头滑块。