利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

269 条记录 (耗时 0.038 秒)

    Thin film magnetic head and manufacturing method thereof
    1.
    发明申请
    Thin film magnetic head and manufacturing method thereof 有权
    薄膜磁头及其制造方法

    公开(公告)号：US20050128639A1

    公开(公告)日：2005-06-16

    申请号：US10682732

    申请日：2003-10-10

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

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

    IPC分类号： G11B5/147 ,  G11B5/39

    CPC分类号： G11B5/3903

    摘要： The invention is directed to improvement of a write element of a thin film magnetic head. In said write element, a first coil and a second coil are provided on a first insulating film formed on one surface of a first magnetic film and surround in a spiral form a back gap portion. A second yoke portion in the upper position comprises a wide portion, a narrow portion and a sloping flare portion. The wide portion has a flat surface and is connected to the first magnetic film by a back gap portion at the rear of the medium-facing surface. The narrow portion forms the second pole portion and the surface of the narrow portion being at a lower position than the surface of the wide portion. The sloping flare portion extends from the narrow portion to the wide portion, gradually increasing in width and its surface sloping upward away from the surface of the narrow portion to the surface of the wide portion.

    摘要翻译： 本发明旨在改进薄膜磁头的写入元件。 在所述写入元件中，第一线圈和第二线圈设置在形成在第一磁性膜的一个表面上的第一绝缘膜上，并以螺旋形式包围在后部间隙部分中。 在上部位置的第二轭部包括宽部分，窄部分和倾斜的张开部分。 宽部分具有平坦的表面，并且通过位于介质表面的后部的后间隙部分连接到第一磁性膜。 窄部分形成第二极部分，并且窄部分的表面处于比宽部分的表面更低的位置。 倾斜的喇叭口部分从窄部分延伸到宽部分，宽度逐渐增加，并且其表面向上倾斜远离窄部分的表面到宽部分的表面。

    Method of manufacturing magnetic head for perpendicular magnetic recording
    2.
    发明授权
    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：US08221636B2

    公开(公告)日：2012-07-17

    申请号：US12149987

    申请日：2008-05-12

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

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

    IPC分类号： B44C1/22

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

    摘要： A magnetic head includes a pole layer, and an encasing layer having a groove that accommodates the pole layer. A manufacturing method for the magnetic head includes the steps of forming a nonmagnetic layer that will later undergo formation of the groove therein and will thereby become the encasing layer; forming the groove in the nonmagnetic layer so that the nonmagnetic layer becomes the encasing layer; and forming the pole layer such that the pole layer is accommodated in the groove of the encasing layer. The nonmagnetic layer is formed of Al2O3. The step of forming the groove in the nonmagnetic layer includes the step of taper-etching the nonmagnetic layer by reactive ion etching with an etching gas containing at least BCl3 and N2 among BCl3, Cl2 and N2.

    摘要翻译： 磁头包括极层和具有容纳极层的凹槽的封装层。 磁头的制造方法包括以下步骤：形成将在其中形成凹槽的非磁性层，从而成为包层; 在非磁性层中形成凹槽，使得非磁性层成为包层; 以及形成所述极层，使得所述极层容纳在所述封装层的槽中。 非磁性层由Al2O3形成。 在非磁性层中形成槽的步骤包括通过在BCl 3，Cl 2和N 2中至少含有BCl 3和N 2的蚀刻气体的反应离子蚀刻来对非磁性层进行锥蚀刻的步骤。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    5.
    发明申请
    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：US20090059426A1

    公开(公告)日：2009-03-05

    申请号：US11896705

    申请日：2007-09-05

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

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

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49046

    摘要： A top surface of a pole layer of a magnetic head includes: a first portion having a first edge located in a medium facing surface and a second edge opposite thereto; and a second portion located farther from the medium facing surface than the first portion and connected to the first portion at the second edge. The distance from a substrate to an arbitrary point on the first portion increases with increasing distance from the medium facing surface to the arbitrary point. The angle of inclination of the first portion taken at the arbitrary point with respect to a direction perpendicular to the medium facing surface increases stepwise or continuously with increasing distance from the medium facing surface to the arbitrary point. The angle of inclination taken at the first edge is greater than zero degree. The second portion extends in a direction substantially perpendicular to the medium facing surface.

    摘要翻译： 磁头的极层的顶表面包括：第一部分，其具有位于介质相对表面中的第一边缘和与其相对的第二边缘; 以及位于比所述第一部分更远离所述介质面对表面并且在所述第二边缘处连接到所述第一部分的第二部分。 从基板到第一部分的任意点的距离随着从介质面向表面到任意点的距离的增加而增加。 相对于与面向介质的表面垂直的任意点处的第一部分的倾斜角度随着从介质面向表面到任意点的距离的增加而逐步或连续地增加。 在第一边缘处采取的倾斜角大于零度。 第二部分在基本上垂直于介质面向表面的方向上延伸。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    6.
    发明申请
    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：US20080316653A1

    公开(公告)日：2008-12-25

    申请号：US11812757

    申请日：2007-06-21

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuo Ishizaki ,  Lijie Guan ,  Takehiro Horinaka

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuo Ishizaki ,  Lijie Guan ,  Takehiro Horinaka

    IPC分类号： G11B5/10

    CPC分类号： G11B5/3116 ,  G11B5/1278

    摘要： A magnetic head includes: a pole layer; a nonmagnetic layer disposed on part of the top surface of the pole layer; a gap layer disposed on the pole layer and the nonmagnetic layer; and a shield disposed on the gap layer. The top surface of the pole layer includes: a first portion having a first edge located in a medium facing surface and a second edge opposite thereto; and a second portion located farther from the medium facing surface than the first portion and connected to the first portion at the second edge. The first portion is inclined with respect to a direction orthogonal to the medium facing surface so that the distance from a substrate increases with increasing distance from the medium facing surface. The nonmagnetic layer has a bottom surface touching the second portion, and this bottom surface has an edge located at the second edge.

    摘要翻译： 磁头包括：极层; 设置在所述极层的顶表面的一部分上的非磁性层; 设置在所述极层和所述非磁性层上的间隙层; 以及设置在间隙层上的屏蔽件。 极层的顶表面包括：第一部分，其具有位于介质相对表面中的第一边缘和与其相对的第二边缘; 以及位于比所述第一部分更远离所述介质面对表面并且在所述第二边缘处连接到所述第一部分的第二部分。 第一部分相对于与介质相对表面正交的方向倾斜，使得距衬底的距离随着距离介质面向表面的距离的增加而增加。 非磁性层具有接触第二部分的底面，该底面具有位于第二边缘的边缘。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    7.
    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：US07375925B2

    公开(公告)日：2008-05-20

    申请号：US11138968

    申请日：2005-05-27

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

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

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3169

    摘要： A pole layer incorporates: a first portion having an end face located in a medium facing surface; and a second portion having a thickness greater than that of the first portion. A surface of the first portion closer to a substrate is located farther from the substrate than a surface of the second portion closer to the substrate. A surface of the first portion farther from the substrate is located closer to the substrate than a surface of the second portion farther from the substrate. At least a portion of the pole layer is placed in an encasing groove formed in a region extending from a first encasing layer through a second encasing layer to a nonmagnetic metal layer.

    摘要翻译： 极层包括：具有位于介质面对表面中的端面的第一部分; 以及第二部分，其厚度大于第一部分的厚度。 靠近基板的第一部分的表面比距离基板的第二部分的表面更靠近基板。 距离基板更远的第一部分的表面比离开基板的第二部分的表面更靠近基板。 极层的至少一部分被放置在形成在从第一包层穿过第二包装层延伸到非磁性金属层的区域中的包围槽中。

    Thin film magnetic head and manufacturing method for creating high surface recording density and including a second yoke portion having two layers of which one is etched to form a narrow portion and a sloped flare portion
    8.
    发明授权
    Thin film magnetic head and manufacturing method for creating high surface recording density and including a second yoke portion having two layers of which one is etched to form a narrow portion and a sloped flare portion 有权
    薄膜磁头和用于产生高表面记录密度的制造方法，并且包括具有两层蚀刻以形成窄部分的第二磁轭部分和倾斜的光晕部分

    公开(公告)号：US07151647B2

    公开(公告)日：2006-12-19

    申请号：US10682732

    申请日：2003-10-10

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

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

    IPC分类号： G11B5/187

    CPC分类号： G11B5/3903

    摘要： The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a first coil and a second coil are provided on a first insulating film formed on one surface of a first magnetic film and surround in a spiral form a back gap portion. A second yoke portion in the upper position comprises a wide portion, a narrow portion and a sloping flare portion. The wide portion has a flat surface and is connected to the first magnetic film by a back gap portion at the rear of the medium-facing surface. The narrow portion forms the second pole portion and the surface of the narrow portion being at a lower position than the surface of the wide portion. The sloping flare portion extends from the narrow portion to the wide portion, gradually increasing in width and its surface sloping upward away from the surface of the narrow portion to the surface of the wide portion.

    摘要翻译： 本发明旨在改进薄膜磁头的写入元件。 在写入元件中，第一线圈和第二线圈设置在形成在第一磁性膜的一个表面上的第一绝缘膜上，并以螺旋形状包围后部间隙部分。 在上部位置的第二轭部包括宽部分，窄部分和倾斜的张开部分。 宽部分具有平坦的表面，并且通过位于介质表面的后部的后间隙部分连接到第一磁性膜。 窄部分形成第二极部分，并且窄部分的表面处于比宽部分的表面更低的位置。 倾斜的喇叭口部分从窄部分延伸到宽部分，宽度逐渐增加，并且其表面向上倾斜远离窄部分的表面到宽部分的表面。

    Method of manufacturing magnetic head for perpendicular magnetic recording
    10.
    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。