Thin-film magnetic head with improved wide area track erasure (WATE), method of manufacturing the same, head gimbal assembly, and hard disk drive
    1.
    发明授权
    Thin-film magnetic head with improved wide area track erasure (WATE), method of manufacturing the same, head gimbal assembly, and hard disk drive 有权
    具有改善的广域轨道擦除(WATE)的薄膜磁头,其制造方法,头万向架组件和硬盘驱动器

    公开(公告)号:US08824102B2

    公开(公告)日:2014-09-02

    申请号:US13099729

    申请日:2011-05-03

    IPC分类号: G11B5/31 G11B5/127

    摘要: A thin-film magnetic head includes a main magnetic pole layer, write shield layer, gap layer, and thin-film coils, which are laminated on a substrate. A return magnetic pole layer is spaced from the medium-opposing surface on the side opposite to the write shield layer with the main magnetic pole layer intervening therebetween. A connecting magnetic layer is formed using a magnetic material to connect the return magnetic pole layer to the write shield layer on the side closer to the medium-opposing surface than is the thin-film coil. The thin-film coil is wound as a flat spiral around the write shield layer. A part of the thin-film coil wound as the flat spiral is disposed only at a position distanced from the substrate than is the main magnetic pole layer.

    摘要翻译: 薄膜磁头包括层叠在基板上的主磁极层,写入屏蔽层,间隙层和薄膜线圈。 返回磁极层与写入屏蔽层相对的一侧的介质相对表面间隔开,主磁极层介于它们之间。 使用磁性材料形成连接磁性层,以使返回磁极层与薄膜线圈相比更靠近介质相对表面的一侧将写入屏蔽层连接。 薄膜线圈围绕写入屏蔽层缠绕成平坦的螺旋线。 作为扁平螺旋卷绕的薄膜线圈的一部分仅设置在与主磁极层相比离开基板的位置。

    Perpendicular magnetic recording head including a front shield part and the method of manufacturing the same
    2.
    发明授权
    Perpendicular magnetic recording head including a front shield part and the method of manufacturing the same 有权
    包括前屏蔽部分的垂直磁记录头及其制造方法

    公开(公告)号:US08514520B2

    公开(公告)日:2013-08-20

    申请号:US13088852

    申请日:2011-04-18

    IPC分类号: G11B5/11 G11B5/147 G11B5/187

    摘要: A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The write shield layer has an opposing shield part opposing the main magnetic pole layer and a front shield part. The front shield part is connected to the opposing shield part without straddling the thin-film coil. Besides, the front shield part has a shield front end face disposed in the medium-opposing surface and a shield upper end face formed distanced from the medium-opposing surface. Further, the front shield part has a shield connecting part. The shield front end face is connected to the shield upper end face by the shield connecting part.

    摘要翻译: 薄膜磁头被构造为使得主磁极层,写入屏蔽层,间隙层和薄膜线圈层叠在基板上。 写屏蔽层具有与主磁极层相对的相对的屏蔽部分和前屏蔽部分。 前屏蔽部分连接到相对的屏蔽部分而不跨越薄膜线圈。 此外,前屏蔽部分具有设置在介质相对表面中的屏蔽前端面和远离介质相对表面形成的屏蔽上端面。 此外,前屏蔽部具有屏蔽连接部。 屏蔽前端面通过屏蔽连接部与屏蔽上端面连接。

    Magnetic head for perpendicular magnetic recording having a return path section
    3.
    发明授权
    Magnetic head for perpendicular magnetic recording having a return path section 有权
    具有返回路径部分的垂直磁记录用磁头

    公开(公告)号:US08416528B1

    公开(公告)日:2013-04-09

    申请号:US13463298

    申请日:2012-05-03

    IPC分类号: G11B5/127

    摘要: A magnetic head includes a main pole and a return path section located above a top surface of a substrate. The main pole has an end face located in a medium facing surface. The return path section is located on the front side in the direction of travel of a recording medium relative to the main pole and is farther from the top surface of the substrate than is the main pole. The return path section has: a front end face located on the front side of the main pole in the medium facing surface; and an inclined surface located on the front side and connected to the front end face. The inclined surface is not exposed in the medium facing surface. An angle greater than 90° is formed between the front end face and the inclined surface.

    摘要翻译: 磁头包括位于基板的顶表面上方的主极和返回路径部分。 主极具有位于面向介质的表面中的端面。 返回路径部分位于记录介质相对于主极的行进方向的前侧,并且比主极更远离基板的顶表面。 返回路径部分具有:位于介质面对表面中的主极的前侧上的前端面; 以及位于前侧并且连接到前端面的倾斜表面。 倾斜表面不会暴露在面向介质的表面上。 在前端面和倾斜面之间形成大于90°的角度。

    Magnetic head for perpendicular magnetic recording having a main pole and a shield
    4.
    发明授权
    Magnetic head for perpendicular magnetic recording having a main pole and a shield 有权
    用于垂直磁记录的磁头,具有主极和屏蔽

    公开(公告)号:US08867169B2

    公开(公告)日:2014-10-21

    申请号:US13473159

    申请日:2012-05-16

    IPC分类号: G11B5/127 G11B5/147

    摘要: A magnetic head includes a magnetic structure incorporating a write shield. The magnetic structure is formed to include a first magnetic layer, a second magnetic layer stacked on the first magnetic layer, and a seed layer. The first magnetic layer has a front end face located in the medium facing surface and a top surface. The second magnetic layer has a front end face located in the medium facing surface and a bottom surface. The top surface of the first magnetic layer includes a first region including an end located in the medium facing surface and a second region farther from the medium facing surface than the first region. The seed layer is not present on the first region of the top surface of the first magnetic layer but is present on the second region.

    摘要翻译: 磁头包括结合有写入屏蔽的磁性结构。 磁结构形成为包括第一磁性层,堆叠在第一磁性层上的第二磁性层和种子层。 第一磁性层具有位于介质相对表面中的前端面和顶面。 第二磁性层具有位于介质面向表面中的前端面和底面。 第一磁性层的顶表面包括第一区域和第二区域,第一区域包括位于介质面向表面中的端部以及比介质面向表面比第一区域更远的第二区域。 种子层不存在于第一磁性层的顶表面的第一区域上,但存在于第二区域上。

    Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
    8.
    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,磁头万向架组件和硬盘驱动器

    公开(公告)号:US08310787B1

    公开(公告)日:2012-11-13

    申请号:US13246153

    申请日:2011-09-27

    IPC分类号: G11B5/31

    摘要: A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The thin-film magnetic head has a shield magnetic layer. The shield magnetic layer is connected to the main magnetic pole layer. The shield magnetic layer has a lower front shield part. A front end angle representing an angle formed between a front end face of the lower front shield part and a lower end face is set at an obtuse angle. The front end face is disposed in the medium-opposing surface. The lower end face is disposed at a position closest to the substrate in the lower front shield part.

    摘要翻译: 薄膜磁头被构造为使得主磁极层,写入屏蔽层,间隙层和薄膜线圈层叠在基板上。 薄膜磁头具有屏蔽磁性层。 屏蔽磁性层连接到主磁极层。 屏蔽磁性层具有下部前屏蔽部分。 形成在下侧前屏蔽部的前端面与下端面之间的角度的前端角被设定为钝角。 前端面设置在介质相对面上。 下端面设置在下侧前屏蔽部的最靠近基板的位置。

    Magnetic head for perpendicular magnetic recording having a main pole and a shield
    10.
    发明授权
    Magnetic head for perpendicular magnetic recording having a main pole and a shield 有权
    用于垂直磁记录的磁头,具有主极和屏蔽

    公开(公告)号:US08300357B1

    公开(公告)日:2012-10-30

    申请号:US13310193

    申请日:2011-12-02

    IPC分类号: G11B5/147

    摘要: A magnetic head includes first and second coils, a main pole, a first shield, and first and second return path sections. The first shield and the first return path section are located forward of the main pole in the direction of travel of the recording medium. The first return path section connects the main pole and the first shield so that a first space is defined. The second return path section is located backward of the main pole in the direction of travel of the recording medium so that a second space is defined. The first coil includes at least one first coil element passing through the first space. The second coil includes a plurality of second coil elements passing through the second space. The at least one first coil element is smaller in number than the second coil elements.

    摘要翻译: 磁头包括第一和第二线圈,主极,第一屏蔽以及第一和第二返回路径部分。 第一屏蔽和第一返回路径部位在记录介质的行进方向上位于主极的前方。 第一返回路径部分连接主极和第一屏蔽,以便限定第一空间。 第二返回路径部分在记录介质的行进方向上位于主极的后方,从而限定第二空间。 第一线圈包括穿过第一空间的至少一个第一线圈元件。 第二线圈包括穿过第二空间的多个第二线圈元件。 所述至少一个第一线圈元件的数量小于所述第二线圈元件。