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    • 2. 发明授权
    • Magnetic head for perpendicular magnetic recording and method of manufacturing same
    • 用于垂直磁记录的磁头及其制造方法
    • US07468864B2
    • 2008-12-23
    • US10880509
    • 2004-07-01
    • Yoshitaka SasakiDong-Hong LiShigeki TanemuraHiroyuki Itoh
    • Yoshitaka SasakiDong-Hong LiShigeki TanemuraHiroyuki Itoh
    • G11B5/31
    • G11B5/1278Y10T428/11Y10T428/1107
    • A pole layer has an end located in a medium facing surface, the end having: a first side close to a substrate; a second side located opposite to the first side; a third side connecting an end of the first side to an end of the second side; and a fourth side connecting the other end of the first side to the other end of the second side. The second side defines a track width. The end of the pole layer located in the medium facing surface has a width that decreases toward the first side. The pole layer is disposed in a groove of a pole-layer-encasing layer made of a nonmagnetic insulating material, with a nonmagnetic conductive film provided between the encasing layer and the pole layer. The pole layer incorporates: a first layer located closer to the surface of the groove; and a second layer located farther from the surface of the groove.
    • 极层具有位于介质面向表面中的端部,其端部具有靠近基板的第一侧面; 与第一侧相对的第二侧; 连接所述第一侧端部与所述第二侧端部的第三侧面; 以及将第一侧的另一端与第二侧的另一端连接的第四侧。 第二面定义轨道宽度。 位于介质相对表面中的极层的端部具有朝向第一侧减小的宽度。 极层设置在由非磁性绝缘材料制成的极层包裹层的沟槽中,其中设置在包层和极层之间的非磁性导电膜。 极层包括:位于更靠近凹槽表面的第一层; 以及位于距凹槽表面更远的第二层。
    • 5. 发明授权
    • Method of manufacturing magnetic head for perpendicular magnetic recording
    • 用于垂直磁记录的磁头制造方法
    • US07951415B2
    • 2011-05-31
    • US12222791
    • 2008-08-15
    • Yoshitaka SasakiDong-Hong LiShigeki TanemuraHiroyuki Itoh
    • Yoshitaka SasakiDong-Hong LiShigeki TanemuraHiroyuki Itoh
    • G11B5/33G11B5/39G11B5/127
    • G11B5/1278Y10T428/11Y10T428/1107
    • A pole layer has an end located in a medium facing surface, the end having: a first side close to a substrate; a second side located opposite to the first side; a third side connecting an end of the first side to an end of the second side; and a fourth side connecting the other end of the first side to the other end of the second side. The second side defines a track width. The end of the pole layer located in the medium facing surface has a width that decreases toward the first side. The pole layer is disposed in a groove of a pole-layer-encasing layer made of a nonmagnetic insulating material, with a nonmagnetic conductive film provided between the encasing layer and the pole layer. The pole layer incorporates: a first layer located closer to the surface of the groove; and a second layer located farther from the surface of the groove.
    • 极层具有位于介质面向表面中的端部,其端部具有靠近基板的第一侧面; 与第一侧相对的第二侧; 连接所述第一侧端部与所述第二侧端部的第三侧面; 以及将第一侧的另一端与第二侧的另一端连接的第四侧。 第二面定义轨道宽度。 位于介质相对表面中的极层的端部具有朝向第一侧减小的宽度。 极层设置在由非磁性绝缘材料制成的极层包裹层的沟槽中,其中设置在包层和极层之间的非磁性导电膜。 极层包括:位于更靠近凹槽表面的第一层; 以及位于距凹槽表面更远的第二层。