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    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge
    7.
    发明授权
    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge 有权
    具有磁写入磁极的垂直磁性写头具有凹形后缘

    公开(公告)号：US07576951B2

    公开(公告)日：2009-08-18

    申请号：US11411556

    申请日：2006-04-25

    申请人： Donald G. Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aaron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    发明人： Donald G. Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aaron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer. A reactive on etch is performed to remove the image transfer layer and a reactive ion mill or reactive ion etch is performed to remove the alumina hard mask and form a concave surface on the write pole.

    摘要翻译： 用于垂直磁记录的磁写头，具有带有凹后缘的写极。 磁性写入极可以具有梯形形状，其中第一和第二横向相对侧在后缘处比在前缘处更远地分开。 写头可以包括或可以不包括磁性后屏蔽，并且如果包括后屏蔽，则其通过非磁性写间隙层与后缘分离。 凹形后边缘提高磁性能，例如通过改善转变曲率。 构成写入头的方法包括通过在沉积的写入极材料上形成掩模结构来形成磁性写入极，掩模结构具有氧化铝硬掩模和诸如DURAMIDE的图像转移层。 然后沉积氧化铝填充层，并执行化学机械抛光以打开图像转印层。 执行反应性蚀刻以去除图像转印层，并且执行反应性离子磨或反应离子蚀刻以除去氧化铝硬掩模并在写入极上形成凹面。

    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge
    9.
    发明申请
    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge 有权
    具有磁写入磁极的垂直磁性写头具有凹形后缘

    公开(公告)号：US20070258167A1

    公开(公告)日：2007-11-08

    申请号：US11411556

    申请日：2006-04-25

    申请人： Donald Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    发明人： Donald Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer. A reactive on etch is performed to remove the image transfer layer and a reactive ion mill or reactive ion etch is performed to remove the alumina hard mask and form a concave surface on the write pole.

    摘要翻译： 用于垂直磁记录的磁写头，具有带有凹后缘的写极。 磁性写入极可以具有梯形形状，其中第一和第二横向相对侧在后缘处比在前缘处更远地分开。 写头可以包括或可以不包括磁性后屏蔽，并且如果包括后屏蔽，则其通过非磁性写间隙层与后缘分离。 凹形后边缘提高磁性能，例如通过改善转变曲率。 构成写入头的方法包括通过在沉积的写入极材料上形成掩模结构来形成磁性写入极，掩模结构具有氧化铝硬掩模和诸如DURAMIDE的图像转移层。 然后沉积氧化铝填充层，并执行化学机械抛光以打开图像转印层。 执行反应性蚀刻以去除图像转印层，并且执行反应性离子磨或反应离子蚀刻以除去氧化铝硬掩模并在写入极上形成凹面。

    Method for making magnetic write head
    10.
    发明申请
    Method for making magnetic write head 失效
    磁头写入方法

    公开(公告)号：US20070017087A1

    公开(公告)日：2007-01-25

    申请号：US11186174

    申请日：2005-07-21

    申请人： Daniel Bedell ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    发明人： Daniel Bedell ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49052

    摘要： After defining the P2 pole of a magnetic read head, alumina is deposited over it and planarized by CMP, with the portion of the alumina overlaying the ABS region of the P2 pole subsequently being masked by a photoresist layer and with the portions of the alumina overlaying the flare area, back gap region, and center tap regions of the P2 pole not being masked. A reactive ion mill is performed to expose the flare area, back gap region, and center tap regions of the P2 pole by removing the alumina over these portions, so that subsequent steps such as forming a layer of coiled conductors, forming a return pole, and forming stud connections along with removing the respective seed layers can be executed with the ABS region protected by the alumina and with the flare area, back gap region, and center tap region exposed.

    摘要翻译： 在定义磁读头的P2极之后，将氧化铝沉积在其上并通过CMP平坦化，其中覆盖P2极的ABS区域的氧化铝的部分随后被光致抗蚀剂层掩蔽，并且氧化铝的部分覆盖 P2极的光斑区域，背隙区域和中心抽头区域不被掩蔽。 通过在这些部分上除去氧化铝，进行反应离子磨，以暴露P2极的火炬区域，后隙区域和中心抽头区域，从而形成后续步骤，例如形成线圈导体层，形成返回极， 并且可以利用由氧化铝保护的ABS区域和暴露的火炬区域，后隙区域和中心抽头区域来执行形成螺柱连接以及移除相应的种子层。