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1.发明授权公开(公告)号：US07609479B2
公开(公告)日：2009-10-27
申请号：US11372259
申请日：2006-03-10
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Dong-Hong Li , Joseph Smyth , Lijie Guan , Yaw-Shing Tang
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Dong-Hong Li , Joseph Smyth , Lijie Guan , Yaw-Shing Tang
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3163
摘要： A pole layer has an end face located in a medium facing surface, allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough, and generates a write magnetic field for writing data on a recording medium by using a perpendicular magnetic recording system. A shield incorporates: a first layer having an end face located in a region of the medium facing surface forward of the end face of the pole layer along the direction of travel of the recording medium; a second layer disposed in a region sandwiching the pole layer with the first layer; a first coupling portion coupling the first layer to the second layer without touching the pole layer; and a second coupling portion coupling the pole layer to the second layer and located farther from the medium facing surface than the first coupling portion.
摘要翻译： 极层具有位于介质相对表面中的端面，允许对应于由线圈产生的磁场的磁通量通过其中，并且通过使用垂直磁记录产生用于将数据写入记录介质的写入磁场 系统。 屏蔽包括：第一层，其具有沿着记录介质的行进方向位于所述极层的端面的前面的介质面向表面的区域中的端面; 第二层，设置在将所述极层与所述第一层夹在中间的区域中; 第一耦合部分，其将所述第一层耦合到所述第二层，而不接触所述极层; 以及第二耦合部分，其将所述极层耦合到所述第二层并且位于比所述第一耦合部更远离所述介质面对表面。
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2.发明授权公开(公告)号：US07468864B2
公开(公告)日：2008-12-23
申请号：US10880509
申请日：2004-07-01
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , Y10T428/11 , Y10T428/1107
摘要： 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.
摘要翻译： 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。
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3.发明申请公开(公告)号：US20070121248A1
公开(公告)日：2007-05-31
申请号：US11289526
申请日：2005-11-30
IPC分类号： G11B5/147
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。
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4.发明申请公开(公告)号：US20060002014A1
公开(公告)日：2006-01-05
申请号：US10880509
申请日：2004-07-01
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , Y10T428/11 , Y10T428/1107
摘要： 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.
摘要翻译： 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。
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5.发明授权公开(公告)号：US07951415B2
公开(公告)日：2011-05-31
申请号：US12222791
申请日：2008-08-15
CPC分类号： G11B5/1278 , Y10T428/11 , Y10T428/1107
摘要： 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.
摘要翻译： 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。
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6.发明申请公开(公告)号：US20080317969A1
公开(公告)日：2008-12-25
申请号：US12222791
申请日：2008-08-15
CPC分类号： G11B5/1278 , Y10T428/11 , Y10T428/1107
摘要： 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.
摘要翻译： 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。
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7.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
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。
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公开(公告)号：US07440229B2
公开(公告)日：2008-10-21
申请号：US10912245
申请日：2004-08-06
申请人： Yoshitaka Sasaki , Lijie Guan , Hiroyuki Ito , Dong Hong Li
发明人： Yoshitaka Sasaki , Lijie Guan , Hiroyuki Ito , Dong Hong Li
IPC分类号： G11B5/127
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/1872 , G11B5/3103 , G11B5/3143 , G11B5/3163
摘要： A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil.
摘要翻译： 薄膜磁头具有叠层结构，该叠层结构包括：主磁极层，其在介质相对表面的与记录介质相对的一侧上具有磁极末端，与形成记录间隙层的磁极末端相对的写入屏蔽层， 介质相对表面的侧面和缠绕在写入屏蔽层的至少一部分上的薄膜线圈。 该薄膜磁头具有比记录间隙层更远离介质相对表面的主极层的部分的尺寸大的上磁轭磁极层，其中，上轭磁极层与 靠近薄膜线圈的主极层的侧面。
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9.发明授权公开(公告)号：US07369361B2
公开(公告)日：2008-05-06
申请号：US11050892
申请日：2005-02-07
CPC分类号： G11B5/3173 , G11B5/3166 , G11B5/3169 , G11B5/39 , G11B5/3903 , Y10T29/49032 , Y10T29/49037 , Y10T29/49043 , Y10T29/49048
摘要： A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming components of a plurality of 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 substructure first resistor elements and second resistor elements are formed. Each of the first resistor elements has a resistance that varies depending on the location of an end of an MR element located in a medium facing surface along the direction orthogonal to the medium facing surface. Each of the second resistor elements has a resistance that varies depending on the location of an end face of a track width defining portion located in the medium facing surface along the direction orthogonal to the medium facing surface. The medium facing surfaces are formed while monitoring the resistance values of the first and second resistor elements.
摘要翻译： 一种制造磁头的方法包括以下步骤：通过在单个基板上形成多个磁头的部件来制造磁头子结构，其中随后将成为相应磁头的多行预磁头部分对准 在子结构中; 以及通过切割子结构将前头部彼此分开来制造磁头。 在子结构中，形成第一电阻元件和第二电阻元件。 每个第一电阻器元件具有根据位于面向介质的表面中的MR元件沿着与介质面对表面正交的方向的端部的位置而变化的电阻。 每个第二电阻器元件具有根据位于介质相对表面中的轨道宽度限定部分的端面沿着与面向介质的表面正交的方向的位置而变化的电阻。 在监测第一和第二电阻元件的电阻值的同时形成面向介质的表面。
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10.发明授权Thin-film magnetic head, method of manufacturing the same, head Gimbal assembly, and hard disk drive 有权薄膜磁头，制造方法，头万向节组装和硬盘驱动器公开(公告)号：US07718218B2
公开(公告)日：2010-05-18
申请号：US12232065
申请日：2008-09-10
申请人： Yoshitaka Sasaki , Lijie Guan , Hiroyuki Ito , Dong Hong Li
发明人： Yoshitaka Sasaki , Lijie Guan , Hiroyuki Ito , Dong Hong Li
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/1872 , G11B5/3103 , G11B5/3143 , G11B5/3163
摘要： A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil.
摘要翻译： 薄膜磁头具有叠层结构，该叠层结构包括：主磁极层，其在介质相对表面的与记录介质相对的一侧上具有磁极末端，与形成记录间隙层的磁极末端相对的写入屏蔽层， 介质相对表面的侧面和缠绕在写入屏蔽层的至少一部分上的薄膜线圈。 该薄膜磁头具有比记录间隙层更远离介质相对表面的主极层的部分的尺寸大的上磁轭磁极层，其中，上轭磁极层与 靠近薄膜线圈的主极层的侧面。
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