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公开(公告)号：US08230577B2
公开(公告)日：2012-07-31
申请号：US12659337
申请日：2010-03-04
IPC分类号： G01R3/00
摘要： In a sensing unit according to the present invention, a spring portion having a support portion and a movable portion is conductive. A signal of a sensor portion provided on the movable portion of the spring portion is transmitted via the spring portion. Hence, the sensing unit according to the present invention has a simple constitution with a small number of components, and a wire does not necessarily have to be provided for each sensor portion. As a result, a reduction in manufacturing cost, simplification of the manufacturing process, and so on are achieved.
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2.发明授权公开(公告)号：US07910160B2
公开(公告)日：2011-03-22
申请号：US12219041
申请日：2008-07-15
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/313 , Y10T29/49032 , Y10T428/11
摘要： A thin-film magnetic head structure has a configuration adapted to manufacture a thin-film magnetic head configured such that a main magnetic pole layer including a magnetic pole end part on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole end part so as to form a recording gap layer on the medium-opposing surface side, and a thin-film coil wound about the write shield layer or main magnetic pole layer are laminated. The main magnetic pole layer includes a base magnetic pole part comprising the magnetic pole end part and a base depression distanced farther from the medium-opposing surface than the magnetic pole end part, and an embedded magnetic pole part buried in the base depression and joined to the base magnetic pole part. The thin-film magnetic head structure includes a yoke magnetic pole part joined to the base magnetic pole part and embedded magnetic pole part at a position distanced farther from the medium-opposing surface than the recording gap layer, and an intervening insulative film disposed between the embedded magnetic pole part and yoke magnetic pole part at a position distanced farther from the medium-opposing surface than the recording gap layer.
摘要翻译： 薄膜磁头结构具有适于制造薄膜磁头的结构，该薄膜磁头被构造成使得包括在与记录介质相对的介质相对表面侧的磁极端部的主磁极层，写入屏蔽 层，以在介质相对表面侧上形成记录间隙层，并且缠绕在写入屏蔽层或主磁极层上的薄膜线圈层叠。 主磁极层包括基极磁极部分，该基极磁极部分包括磁极端部和距中间相对表面远离磁极端部的基座凹部，以及埋入基座凹部中的嵌入式磁极部， 基极磁极部分。 薄膜磁头结构包括：与记录间隙层相比离开与介质相对表面更远的位置处连接到基极磁极部分和嵌入式磁极部分的轭磁极部分，以及设置在介质相对表面之间的中间绝缘膜 嵌入式磁极部和轭磁极部位于比记录间隙层远离介质相对面的位置。
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3.发明授权Perpendicular magnetic recording head with nonmagnetic metal layer even with top face of pole layer 有权具有非磁性金属层的垂直磁记录头，甚至具有极层的顶面公开(公告)号：US07843665B2
公开(公告)日：2010-11-30
申请号：US11518210
申请日：2006-09-11
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Takehiro Horinaka , Hironori Araki , Tatsushi Shimizu , Tatsuya Shimizu
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Takehiro Horinaka , Hironori Araki , Tatsushi Shimizu , Tatsuya Shimizu
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/313 , G11B5/315 , G11B5/3163 , Y10T29/49046
摘要： A magnetic head including an encasing layer having a groove; a nonmagnetic metal layer that has a sidewall located directly above the edge of the groove and that is disposed on a region of the encasing layer away from the medium facing surface; two side shield layers that have sidewalls located directly above the edge of the groove and that are disposed adjacent to the nonmagnetic metal layer on regions of the encasing layer closer to the medium facing surface than the nonmagnetic metal layer; and a pole layer. The pole layer is placed in an encasing section formed of the groove of the encasing layer, the sidewall of the nonmagnetic metal layer, and the sidewalls of the two side shield layers.
摘要翻译： 一种磁头，包括具有槽的封装层; 非磁性金属层，其具有位于所述槽的边缘正上方的侧壁，并且所述侧壁设置在所述封装层的远离所述介质面向表面的区域上; 两个侧面屏蔽层，其具有位于所述凹槽边缘正上方的侧壁，并且在所述封装层的与所述非磁性金属层相比更靠近介质面向表面的区域上邻近所述非磁性金属层设置; 和极层。 极层被放置在由包装层的槽，非磁性金属层的侧壁和两个侧面屏蔽层的侧壁形成的包围部分中。
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公开(公告)号：US07698941B2
公开(公告)日：2010-04-20
申请号：US11812630
申请日：2007-06-20
CPC分类号： G01P15/105 , G01P15/08 , G01P15/0802 , Y10T29/49002 , Y10T29/49007 , Y10T29/4913 , Y10T29/49146 , Y10T29/49171 , Y10T29/49176 , Y10T29/4922
摘要： In a sensing unit according to the present invention, a spring portion having a support portion and a movable portion is conductive. A signal of a sensor portion provided on the movable portion of the spring portion is transmitted via the spring portion. Hence, the sensing unit according to the present invention has a simple constitution with a small number of components, and a wire does not necessarily have to be provided for each sensor portion. As a result, a reduction in manufacturing cost, simplification of the manufacturing process, and so on are achieved.
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公开(公告)号：US07663839B2
公开(公告)日：2010-02-16
申请号：US11129377
申请日：2005-05-16
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/313 , G11B5/3169
摘要： A pole layer has: a first portion having an end face located in a medium facing surface; and a second portion that is located farther from the medium facing surface than the first portion and has a thickness greater than that of the first portion. A surface of the first portion farther from a substrate is located closer to the substrate than a surface of the second portion farther from the substrate. The second portion has a front end face that couples the surface of the first portion farther from the substrate to the surface of the second portion farther from the substrate. A shield layer has a portion located between the front end face and the medium facing surface in a region closer to the substrate than the surface of the second portion farther from the substrate.
摘要翻译： 极层具有：第一部分，其具有位于介质面向表面中的端面; 以及比所述第一部分位于比所述介质相对表面更远的第二部分，并且具有大于所述第一部分的厚度的厚度。 距离基板更远的第一部分的表面比距离基板更远的第二部分的表面更靠近基板。 第二部分具有前端面，该前端面将第一部分的表面从基板延伸到距离基板更远的第二部分的表面。 屏蔽层在距离基板的第二部分的表面更靠近基板的区域中具有位于前端面和介质对向表面之间的部分。
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6.发明授权Magnetic head for perpendicular magnetic recording having a pole layer including a plurality of stacked magnetic films 有权用于垂直磁记录的磁头，其具有包括多个堆叠的磁性膜的极层公开(公告)号：US08687320B2
公开(公告)日：2014-04-01
申请号：US13440554
申请日：2012-04-05
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Shigeki Tanemura , Hironori Araki , Kazuo Ishizaki , Takehiro Horinaka
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Shigeki Tanemura , Hironori Araki , Kazuo Ishizaki , Takehiro Horinaka
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3123 , G11B5/313 , G11B5/3163 , H01L21/67069 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/4906 , Y10T29/49066 , Y10T428/115
摘要： A magnetic head includes a pole layer accommodated in a groove. The pole layer has a track width defining portion and a wide portion. The pole layer includes a plurality of magnetic films stacked. At least one of the plurality of magnetic films includes a first portion included in the track width defining portion, a second portion included in the wide portion, and a third portion coupling the first and second portions to each other. In a cross section passing through the center of the pole layer taken in the track width direction, the second portion is smaller than the first portion in thickness and the top surface of the third portion is inclined with respect to a direction perpendicular to a medium facing surface.
摘要翻译： 磁头包括容纳在凹槽中的极层。 极层具有轨道宽度限定部分和宽部分。 极层包括堆叠的多个磁性膜。 多个磁性膜中的至少一个包括包括在轨道宽度限定部分中的第一部分，包括在宽部分中的第二部分和将第一部分和第二部分彼此联接的第三部分。 在通过沿着磁道宽度方向取得的磁极层的中心的横截面中，第二部分的厚度小于第一部分，并且第三部分的顶表面相对于垂直于面向介质的介质的方向倾斜 表面。
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7.发明申请公开(公告)号：US20120140358A1
公开(公告)日：2012-06-07
申请号：US12960954
申请日：2010-12-06
IPC分类号： G11B5/187
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T29/49032
摘要： A magnetic head includes a main magnetic pole, a shield having an end face located in a medium facing surface to wrap around an end face of the main magnetic pole, and a gap part provided between the main magnetic pole and the shield. The shield includes a bottom shield, two side shields, and a top shield. The gap part includes first and second gap layers. In a manufacturing method of the magnetic head, a mold is formed on the top surface of the bottom shield, the mold having a shape determined by photolithography and being intended to be removed later. Next, the two side shields are formed on the top surface of the bottom shield by performing plating without forming a seed layer. Next, the mold is removed and then the first gap layer, the main magnetic pole, the second gap layer, and the top shield are formed in succession.
摘要翻译： 磁头包括主磁极，屏蔽，其具有位于介质面向表面中的端面以围绕主磁极的端面，以及设置在主磁极和屏蔽之间的间隙部分。 屏蔽包括底部屏蔽，两个侧面屏蔽和顶部屏蔽。 间隙部分包括第一和第二间隙层。 在磁头的制造方法中，在底部屏蔽的顶面上形成有模具，该模具具有通过光刻法确定的形状并且稍后被去除。 接下来，通过进行电镀而不形成种子层，在底部屏蔽的顶表面上形成两个侧面屏蔽。 接下来，移除模具，然后依次形成第一间隙层，主磁极，第二间隙层和顶部屏蔽。
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公开(公告)号：US20100154198A1
公开(公告)日：2010-06-24
申请号：US12659337
申请日：2010-03-04
IPC分类号： H05K13/00
CPC分类号： G01P15/105 , G01P15/08 , G01P15/0802 , Y10T29/49002 , Y10T29/49007 , Y10T29/4913 , Y10T29/49146 , Y10T29/49171 , Y10T29/49176 , Y10T29/4922
摘要： In a sensing unit according to the present invention, a spring portion having a support portion and a movable portion is conductive. A signal of a sensor portion provided on the movable portion of the spring portion is transmitted via the spring portion. Hence, the sensing unit according to the present invention has a simple constitution with a small number of components, and a wire does not necessarily have to be provided for each sensor portion. As a result, a reduction in manufacturing cost, simplification of the manufacturing process, and so on are achieved.
摘要翻译： 在根据本发明的感测单元中，具有支撑部分和可移动部分的弹簧部分是导电的。 设置在弹簧部分的可动部分上的传感器部分的信号通过弹簧部分传递。 因此，根据本发明的感测单元具有数量少的部件的简单结构，并且不一定必须为每个传感器部分提供电线。 结果，实现了制造成本的降低，制造工艺的简化等。
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公开(公告)号：US07721415B2
公开(公告)日：2010-05-25
申请号：US11406268
申请日：2006-04-19
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/3163 , Y10T29/49032 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A thin-film magnetic head is manufactured as follows. First, a base insulating layer having a magnetic pole forming depression sunken into a form corresponding to the main magnetic pole layer is formed, a stop film for CMP is formed such as to fill the magnetic pole forming depression, and then a magnetic layer is formed on the stop film. Next, the magnetic layer is separated by forming a separation groove substantially surrounding the magnetic pole forming depression on the outside thereof, and thus separated magnetic layer is formed with a cover insulating film adapted to cover the whole upper face. The surface is polished by CMP until the stop film is exposed, so that the part of magnetic layer remaining on the inside of the magnetic pole forming depression is used as the main magnetic pole layer. Further, a recording gap layer, a write shield layer, and a thin-film coil are formed.
摘要翻译： 如下制造薄膜磁头。 首先，形成具有凹陷形成为与主磁极层对应的形状的磁极形成凹部的基底绝缘层，形成用于填充磁极形成凹部的用于CMP的停止膜，然后形成磁性层 在停止电影。 接下来，通过在其外侧形成基本上围绕磁极形成凹部的分离槽来分离磁性层，由此分离的磁性层形成有覆盖整个上表面的覆盖绝缘膜。 通过CMP抛光表面，直到停止膜露出，使得残留在磁极形成凹部内侧的磁性层的一部分被用作主磁极层。 此外，形成记录间隙层，写入屏蔽层和薄膜线圈。
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10.发明申请公开(公告)号：US20090141406A1
公开(公告)日：2009-06-04
申请号：US11987786
申请日：2007-12-04
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Hironori Araki , Takehiro Horinaka , Kowang Liu , Erhard Schreck
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Hironori Araki , Takehiro Horinaka , Kowang Liu , Erhard Schreck
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3136 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A magnetic head includes a pole layer and a shield. The shield includes a shield layer having a front end face located in the medium facing surface at a position forward of an end face of the pole layer along a direction of travel of the recording medium. The magnetic head further includes a stopper layer for suppressing protrusion of the front end face of the shield layer, the stopper layer being disposed adjacent to the shield layer and made of a nonmagnetic material having a linear thermal expansion coefficient of 5×10−6/° C. or smaller at a temperature of 25° C. to 100° C.
摘要翻译： 磁头包括极层和屏蔽。 屏蔽层包括屏蔽层，该屏蔽层具有前端面，该前端面沿着记录介质的行进方向位于磁极层的端面的前方的位置处于介质相对表面。 磁头还包括用于抑制屏蔽层前端面的突起的阻挡层，该阻挡层邻近屏蔽层设置并由线性热膨胀系数为5×10 -6 /℃的非磁性材料制成 在25℃至100℃的温度下
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