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公开(公告)号：US20090144965A1
公开(公告)日：2009-06-11
申请号：US11987995
申请日：2007-12-06
申请人： Hiraku Hirabayashi
发明人： Hiraku Hirabayashi
CPC分类号： G11B5/3166 , G11B5/3116 , G11B5/3169 , G11B5/3173 , Y10T29/49032 , Y10T29/49036 , Y10T29/49048 , Y10T29/4906 , Y10T29/49798 , Y10T29/53165
摘要： A method of manufacturing a magnetic head includes the steps of: fabricating a magnetic head substructure by forming components of a plurality of magnetic heads on a substrate, the substructure including a plurality of pre-head portions aligned in a plurality of rows; and fabricating a plurality of magnetic heads by separating the plurality of pre-head portions from one another by cutting the substructure. In the step of fabricating the substructure, a plurality of sensors are formed, the sensors respectively showing individual sensor values corresponding to values of a plurality of different parameters each of which has an influence on characteristics of the magnetic head relating to a pole layer and each of which depends on the position of a medium facing surface. In the step of fabricating the magnetic heads, the medium facing surfaces are formed by lapping a surface formed by cutting the substructure so that a composite sensor value that depends on the plurality of individual sensor values shown by the plurality of sensors becomes a predetermined value.
摘要翻译： 制造磁头的方法包括以下步骤：通过在衬底上形成多个磁头的部件来制造磁头子结构，所述子结构包括以多行排列的多个预磁头部分; 以及通过切割所述子结构将所述多个前头部彼此分离来制造多个磁头。 在制造子结构的步骤中，形成多个传感器，所述传感器分别表示对应于多个不同参数的值的各个传感器值，每个参数对磁极层的特性有影响 其取决于介质面向表面的位置。 在制造磁头的步骤中，通过研磨通过切割子结构形成的表面来形成介质相对表面，使得依赖于多个传感器所示的多个单独传感器值的复合传感器值成为预定值。
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公开(公告)号：US20080100961A1
公开(公告)日：2008-05-01
申请号：US11772562
申请日：2007-07-02
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/00826 , G11B5/29 , G11B5/3123 , G11B5/3967 , G11B5/3977
摘要： A multi-channel head includes a substrate and a plurality of recording elements arranged on the substrate in a track width direction. At least one of the recording elements satisfies BGW BGW, where PW represents a pole width, BGW and BGD represent a width and a depth, respectively, of a back yoke.
摘要翻译： 多通道头包括基板和沿轨道宽度方向布置在基板上的多个记录元件。 至少一个记录元件满足BGW
BGW，其中PW表示极宽度，BGW和BGD分别表示后轭的宽度和深度。 -
公开(公告)号：US20050195526A1
公开(公告)日：2005-09-08
申请号：US11068967
申请日：2005-03-02
CPC分类号： G11B5/3116 , G11B5/1278
摘要： The present invention is intended for a thin film magnetic head which can provide reduction in the excess magnetostatic leakage field even if the flare point is set near to the ABS in order to generate a sufficient recording magnetic field and which can assure stable overwrite characteristics even if there are variations in upper pole portion patterns. The pole end portion 223 has a width W11 to define a recording track width. The pole rear portion 222 has one end which is magnetically connected with the pole end portion 223 at or in the vicinity of an edge portion of an insulating film 273 and defines a first flare point FP1, the other end which is connected with the upper yoke portion 221 and defines a second flare point FP2, and both side edges in the track width direction which are inclined so that the width in the track width direction gradually increases from the second flare point FP2 toward the first flare point FP1. The width W11 of the pole end portion 223 at the first flare point FP1 is smaller than the maximum width W21 of the pole rear portion 222.
摘要翻译： 本发明的目的在于一种薄膜磁头，即使将扩张点设置在靠近ABS的情况下也能够提供过剩的静磁泄漏场，以产生足够的记录磁场，即使在 上极部分图形有变化。 极端部223具有宽度W 11，以限定记录轨道宽度。 极后部222的一端在绝缘膜273的边缘部分处或附近与极端部223磁性连接，并且限定第一扩口点FP1，另一端与上端 轭部221，并且限定第二扩张点FP 2，以及轨道宽度方向上的两个侧边缘，其倾斜，使得轨道宽度方向上的宽度从第二扩张点FP 2朝向第一扩张点FP 1逐渐增加。 第一点火点FP 1的极端部223的宽度W 11比极后部222的最大宽度W 21小。
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54.发明申请公开(公告)号：US20050057851A1
公开(公告)日：2005-03-17
申请号：US10917476
申请日：2004-08-13
CPC分类号： G11B5/3163 , G11B5/3116 , Y10T29/49021
摘要： A thin-film magnetic head includes a lower magnetic layer, an upper magnetic layer, a recording gap layer, and a thin-film coil. The lower magnetic layer has a first magnetic pole tip layer, and a first yoke layer which is connected to the first magnetic pole tip layer. The first yoke layer has an extended part which is relatively thick and a reduced part which is relatively thin in the area in which the first yoke layer confronts the first magnetic pole tip layer, the extended part being positioned on the side of the air bearing surface. Further, the first magnetic pole tip layer is connected to the first yoke layer at the extended part, and is insulated from the first yoke layer at the reduced part.
摘要翻译： 薄膜磁头包括下磁性层，上磁性层，记录间隙层和薄膜线圈。 下磁性层具有第一磁极尖端层和与第一磁极尖端层连接的第一磁轭层。 第一磁轭层具有相对较厚的延伸部分和在第一磁轭层面对第一磁极末端层的区域中较薄的部分，延伸部分位于空气轴承表面侧 。 此外，第一磁极尖端层在延伸部分处连接到第一磁轭层，并且在缩小部分处与第一磁轭层绝缘。
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