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1. 发明公开

EP1959436A3 Magnetic head and method of manufacturing the same 审中-公开
标题翻译：磁头和其制造方法
公开(公告)号：EP1959436A3
公开(公告)日：2009-05-27
申请号：EP08250294.9
申请日：2008-01-23
申请人： Hitachi Global Storage Technologies Netherlands B.V.
发明人： Maruyama, Yoji , Iwakura, Tadayuki , Etoh, Kimitoshi , Shiina, Hiromi , Kudo, Kazue
IPC分类号： G11B5/31 , G11B5/127 , G11B5/11
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： To suppress broadening of a write field of a main pole of a perpendicular recording head and realize high-quality write operation, it is necessary to set the formation accuracy of members forming the head at an extremely high level. In the case of manufacturing perpendicular recording heads by commercially available manufacturing equipment, a manufacturing yield is low so that inexpensive heads cannot be mass-produced. A main pole 11 of a write head 200 extends to an air bearing surface 98 or a medium-facing surface and has an inverted trapezoid in cross-section. First soft magnetic films 10 called side shields are separately disposed through a nonmagnetic film 51 on both sides of the main pole 11. The air bearing surface side end of the first soft magnetic film 10 is provided to recede from the air bearing surface 98. The first soft magnetic film 10 and the main pole 11 are formed in the same layer. A second soft magnetic film 12 called a trailing shield is provided above the main pole 11 on the air bearing surface side via a nonmagnetic film 14.

2. 发明公开

EP1959436A2 Magnetic head and method of manufacturing the same 审中-公开
标题翻译： Magnetischer Kopf und Herstellungsverfahrendafür
公开(公告)号：EP1959436A2
公开(公告)日：2008-08-20
申请号：EP08250294.9
申请日：2008-01-23
申请人： Hitachi Global Storage Technologies Netherlands B.V.
发明人： Maruyama, Yoji , Iwakura, Tadayuki , Etoh, Kimitoshi , Shiina, Hiromi , Kudo, Kazue
IPC分类号： G11B5/31 , G11B5/127 , G11B5/11
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： To suppress broadening of a write field of a main pole of a perpendicular recording head and realize high-quality write operation, it is necessary to set the formation accuracy of members forming the head at an extremely high level. In the case of manufacturing perpendicular recording heads by commercially available manufacturing equipment, a manufacturing yield is low so that inexpensive heads cannot be mass-produced. A main pole 11 of a write head 200 extends to an air bearing surface 98 or a medium-facing surface and has an inverted trapezoid in cross-section. First soft magnetic films 10 called side shields are separately disposed through a nonmagnetic film 51 on both sides of the main pole 11. The air bearing surface side end of the first soft magnetic film 10 is provided to recede from the air bearing surface 98. The first soft magnetic film 10 and the main pole 11 are formed in the same layer. A second soft magnetic film 12 called a trailing shield is provided above the main pole 11 on the air bearing surface side via a nonmagnetic film 14.
摘要翻译：为了抑制垂直记录头的主极的写入场的加宽并且实现高质量的写入操作，需要将形成头部的部件的成形精度设定在非常高的水平。在通过商业制造设备制造垂直记录头的情况下，制造成品率低，因此不能批量生产便宜的头。写头200的主极11延伸到空气轴承表面98或中等的表面，并且具有横截面的倒梯形。第一软磁膜10称为侧屏，分别通过主磁极11两侧的非磁性膜51设置。第一软磁膜10的空气轴承表面侧端部设置成从空气轴承表面98后退。第一软磁膜10和主极11形成在同一层中。通过非磁性膜14，在空气轴承表面侧的主极11的上方设置称为后挡板的第二软磁膜12。

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