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    Method of manufacturing magnetic head, and magnetic head sub-structure
    13.
    发明授权
    Method of manufacturing magnetic head, and magnetic head sub-structure 有权
    制造磁头和磁头子结构的方法

    公开(公告)号：US08163186B2

    公开(公告)日：2012-04-24

    申请号：US12155734

    申请日：2008-06-09

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3173 ,  Y10T29/49037 ,  Y10T29/49044

    摘要： A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming a plurality of components of the magnetic heads on a single substrate, wherein a plurality of rows of pre-head portions that will be the respective magnetic heads later are aligned in the substructure; and fabricating the magnetic heads by separating the pre-head portions from one another through cutting the substructure. In the step of fabricating the substructure, a plurality of indicators are formed, each of the indicators serving as a reference for indicating the location of a region ABS in which the medium facing surfaces of the magnetic heads are to be formed.

    摘要翻译： 制造磁头的方法包括以下步骤：通过在单个基板上形成磁头的多个部件来制造磁头子结构，其中稍后将成为相应磁头的多行预磁头部分是 在子结构中排列; 以及通过切割子结构将前头部彼此分开来制造磁头。 在制造子结构的步骤中，形成多个指示器，每个指示器用作用于指示要形成磁头的介质相对表面的区域ABS的位置的基准。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    14.
    发明授权
    Magnetic head for perpendicular magnetic recording and method of manufacturing same 有权
    用于垂直磁记录的磁头及其制造方法

    公开(公告)号：US07957097B2

    公开(公告)日：2011-06-07

    申请号：US11819667

    申请日：2007-06-28

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Moris Dovek

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Moris Dovek

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

    摘要： An encasing section includes an encasing layer having an encasing groove, and a nonmagnetic film disposed in the encasing groove at a position between the encasing layer and a pole layer. The pole layer includes a track width defining portion and a wide portion. The track width defining portion has a first side surface and a second side surface. The wide portion has a third side surface and a fourth side surface. The encasing layer has a first wall surface and a second wall surface. The distance between the third side surface and the first wall surface is smaller than the distance between the first side surface and the first wall surface. The distance between the fourth side surface and the second wall surface is smaller than the distance between the second side surface and the second wall surface.

    摘要翻译： 封装部分包括具有封装槽的封装层和在封装槽和极层之间的位置处设置在封装槽中的非磁性膜。 极层包括轨道宽度限定部分和宽部分。 轨道宽度限定部分具有第一侧表面和第二侧表面。 宽部具有第三侧面和第四侧面。 包围层具有第一壁表面和第二壁表面。 第三侧表面与第一壁表面之间的距离小于第一侧表面和第一壁表面之间的距离。 第四侧表面和第二壁表面之间的距离小于第二侧表面和第二壁表面之间的距离。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    15.
    发明授权
    Magnetic head for perpendicular magnetic recording and method of manufacturing same 有权
    用于垂直磁记录的磁头及其制造方法

    公开(公告)号：US07796361B2

    公开(公告)日：2010-09-14

    申请号：US11727371

    申请日：2007-03-26

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163

    摘要： A pole layer has a track width defining portion and a wide portion. The pole layer has: first and second side surfaces located opposite to each other in a first region extending from a medium facing surface to a position at a distance of 10 to 300 nm from the medium facing surface; third and fourth side surfaces located in a second region other than the first region; a fifth side surface located at the boundary between the first and second regions and connecting the first and third side surfaces to each other; and a sixth side surface located at the boundary between the first and second regions and connecting the second and fourth side surfaces to each other. The distance between the first and second side surfaces taken in the track width direction decreases with decreasing distance from the top surface of the substrate. The angle formed by the third and fourth side surfaces with respect to the direction orthogonal to the top surface of the substrate is smaller than that formed by the first and second side surfaces with respect to the direction orthogonal to the top surface of the substrate.

    摘要翻译： 极层具有轨道宽度限定部分和宽部分。 所述极层具有：第一和第二侧表面在从介质相对表面延伸到距介质面向表面10至300nm距离的位置的第一区域中彼此相对; 位于除了第一区域之外的第二区域中的第三和第四侧表面; 第五侧表面，位于第一和第二区域之间的边界处，并且将第一和第三侧表面彼此连接; 以及位于第一和第二区域之间的边界处并将第二和第四侧表面彼此连接的第六侧表面。 在轨道宽度方向上取得的第一和第二侧表面之间的距离随着距衬底顶表面的距离减小而减小。 由第三和第四侧面相对于与基板顶面垂直的方向形成的角度小于由第一和第二侧面相对于与基板顶面正交的方向形成的角度。

    Magnetic head for perpendicular magnetic recording having a specially configured shield layer
    16.
    发明授权
    Magnetic head for perpendicular magnetic recording having a specially configured shield layer 有权
    用于垂直磁记录的磁头，具有专门设计的屏蔽层

    公开(公告)号：US07656613B2

    公开(公告)日：2010-02-02

    申请号：US12320932

    申请日：2009-02-09

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Shigeki Tanemura ,  Hironori Araki

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Shigeki Tanemura ,  Hironori Araki

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278

    摘要： A magnetic head comprises a pole layer, a shield layer, a gap layer disposed between the pole layer and the shield layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to the medium facing surface.

    摘要翻译： 磁头包括极层，屏蔽层，设置在极层和屏蔽层之间的间隙层和线圈。 屏蔽层包括：设置在间隙层上的第一层; 设置在所述第一层上的第二层; 以及设置在所述第二层上的第三层。 第一层具有位于面向介质的表面中的端面。 靠近介质相对表面的第二层和第三层中的每一层的端面位于与介质相对表面一定距离处。 第一非磁性层设置在第一层周围。 第二非磁性层设置在介质面向表面和第二层的靠近介质面向表面的端面之间。

    Method of manufacturing magnetic head for perpendicular magnetic recording
    17.
    发明申请
    Method of manufacturing magnetic head for perpendicular magnetic recording 有权
    用于垂直磁记录的磁头制造方法

    公开(公告)号：US20090294402A1

    公开(公告)日：2009-12-03

    申请号：US12153987

    申请日：2008-05-28

    申请人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Kazuo Ishizaki

    发明人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Kazuo Ishizaki

    IPC分类号： B44C1/22

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163

    摘要： A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an encasing layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes: the step of etching a nonmagnetic layer that will become the encasing layer later, such that an initial groove including the first portion is formed in the nonmagnetic layer; the step of forming an initial groove mask covering the first portion; and a second etching step for etching the nonmagnetic layer so as to complete the groove. When the second etching step starts, a portion of the top surface of the bottom forming layer located in a region in which the second portion is to be formed is covered with the nonmagnetic layer or the initial groove mask.

    摘要翻译： 磁头包括：包括轨道宽度限定部分和宽部分的极层; 以及设置在底部形成层上并具有容纳极层的槽的封装层。 凹槽包括用于容纳轨道宽度限定部分的至少一部分的第一部分和用于容纳至少部分宽部分的第二部分。 磁头的制造方法包括以下步骤：在非磁性层中形成包含第一部分的初始槽，从而蚀刻将成为封装层的非磁性层; 形成覆盖所述第一部分的初始槽掩模的步骤; 以及用于蚀刻非磁性层以完成凹槽的第二蚀刻步骤。 当第二蚀刻步骤开始时，位于要形成第二部分的区域中的底部形成层的顶表面的一部分被非磁性层或初始凹槽掩模覆盖。

    Method of manufacturing magnetic head having a patterned pole layer and method of forming a patterned layer
    18.
    发明申请
    Method of manufacturing magnetic head having a patterned pole layer and method of forming a patterned layer 有权
    具有图案化极层的磁头的制造方法和形成图案层的方法

    公开(公告)号：US20090269708A1

    公开(公告)日：2009-10-29

    申请号：US12458178

    申请日：2009-07-02

    申请人： Yoshitaka Sasaki ,  Kazuo Ishizaki ,  Hiroyuki Itoh

    发明人： Yoshitaka Sasaki ,  Kazuo Ishizaki ,  Hiroyuki Itoh

    IPC分类号： G03F7/20

    CPC分类号： G01R33/093 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： A method of forming a magnetic head comprises the steps of: selectively exposing through the use of a photomask a photoresist layer unpatterned; forming a pattern for forming a pole layer by developing the photoresist layer after the exposure; and forming the pole layer through the use of the pattern. The photomask includes first to third regions. The first region has such a perimeter that a projection image thereof is shaped along a perimeter of an ideal shape of the top surface of the pole layer. The second region touches the perimeter of the first region, and is located outside the first region. The third region is located inside the first region without touching the perimeter of the first region. The third region suppresses deviation of the pole layer from its desired shape which may be caused by the effect of light reflected while the photoresist layer is exposed.

    摘要翻译： 一种形成磁头的方法包括以下步骤：通过使用光掩模选择性曝光未图案化的光致抗蚀剂层; 通过在曝光后显影光致抗蚀剂层，形成用于形成极层的图案; 并通过使用图案形成极层。 光掩模包括第一至第三区域。 第一区域具有这样的周边，使得其投影图像沿着极层顶表面的理想形状的周边成形。 第二区域接触第一区域的周边，并且位于第一区域的外部。 第三区域位于第一区域内，而不接触第一区域的周边。 第三区域抑制极性层与其期望形状的偏差，这可能是由光致抗蚀剂层暴露时反射的光的影响引起的。