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    Perpendicular magnetic recording head and method of manufacturing the same
    1.
    发明授权
    Perpendicular magnetic recording head and method of manufacturing the same 有权
    垂直磁记录头及其制造方法

    公开(公告)号：US08470185B2

    公开(公告)日：2013-06-25

    申请号：US12457060

    申请日：2009-05-29

    申请人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    发明人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    IPC分类号： G11B5/10

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  Y10T29/49046 ,  Y10T29/49052

    摘要： A method of manufacturing a perpendicular magnetic write head capable of precisely narrowing a side gap is provided. A tip portion having a cross sectional geometry of an inverted trapezoid is formed in an opening portion of a non-magnetic layer and thereafter, the non-magnetic layer is etched with the tip portion as a mask. Thereby, a portion adjacent to the tip portion in a writing track width direction remains and an outermost edge portion of the tip portion in that direction is located on a plane which coincides with an etching face (side face) of the non-magnetic layer. When a gap layer is formed with a vapor phase growth such as a sputtering method to cover the side face of the non-magnetic layer and thereafter a side shield layer is formed adjacently to the tip portion therethrough, a thickness of the gap layer becomes extremely thin and is reproduced precisely. Therefore, the side gap is narrowed with high precision.

    摘要翻译： 提供了一种制造能够精确地缩小侧面间隙的垂直磁性写入头的方法。 在非磁性层的开口部分中形成具有倒梯形截面几何形状的尖端部分，然后用尖端部分作为掩模蚀刻非磁性层。 由此，沿着书写轨道宽度方向与尖端部分相邻的部分残留，并且尖端部分在该方向上的最外边缘部分位于与非磁性层的蚀刻面（侧面）重合的平面上。 当用诸如溅射法的气相生长形成间隙层以覆盖非磁性层的侧面，然后与其顶端部分相邻形成侧屏蔽层时，间隙层的厚度变得非常大 薄而被精确地复制。 因此，侧面间隙以高精度变窄。

    Perpendicular magnetic write head
    4.
    发明申请
    Perpendicular magnetic write head 失效
    垂直写磁头

    公开(公告)号：US20110063754A1

    公开(公告)日：2011-03-17

    申请号：US12585456

    申请日：2009-09-15

    申请人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    发明人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    IPC分类号： G11B5/187

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163

    摘要： A perpendicular magnetic write head in which unintended erasure of information at the time of non-writing can be suppressed while keeping the capability of writing is provided. The perpendicular magnetic write head includes a magnetic pole tip portion, a first yoke portion connected to the magnetic pole tip portion, having a width larger than that of the magnetic pole tip portion, and having a recess portion in a center region thereof, and a second yoke portion embedded in the recess portion. The magnetic pole tip portion and the first yoke portion are integrally formed with a vapor deposition method, and the second yoke portion is formed with a plating method. Since the saturation flux density of the magnetic pole tip portion formed with the vapor deposition method becomes higher than that of the yoke portion, a magnetic flux intake capacity of the magnetic pole tip portion is ensured. In a magnetic domain structure of the yoke portion most of which is formed with the plating method, since an easy magnetization axis becomes likely to be directed in a direction perpendicular to an emitting direction of a magnetic flux, residual flux becomes less likely to leak out of the main magnetic pole layer at the time of non-writing.

    摘要翻译： 提供了在保持写入能力的同时抑制在非写入时的意外擦除信息的垂直磁性写入头。 垂直磁性写入头包括磁极尖端部分，连接到磁极尖端部分的第一磁轭部分，其宽度大于磁极尖端部分的宽度，并且在其中心区域具有凹部， 第二轭部嵌入凹部。 磁极端部和第一磁轭部用气相沉积法一体形成，第二磁轭部形成电镀法。 由于利用气相沉积法形成的磁极尖端部分的饱和磁通密度变得高于磁轭部分的饱和磁通密度，所以确保了磁极尖端部分的磁通量进入容量。 在磁轭部分的磁畴结构中，其大部分由电镀法形成，由于容易的磁化轴变得可能沿垂直于磁通的发射方向的方向被引导，所以残余磁通不太可能泄漏 在非写入时的主磁极层。

    Perpendicular Magnetic Write head and method of manufacturing the same
    5.
    发明申请
    Perpendicular Magnetic Write head and method of manufacturing the same 有权
    垂直磁头写头及其制造方法

    公开(公告)号：US20120002326A1

    公开(公告)日：2012-01-05

    申请号：US12801904

    申请日：2010-06-30

    申请人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    发明人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    IPC分类号： G11B5/10

    CPC分类号： G11B5/1278 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： A perpendicular magnetic write head includes: a magnetic pole; a pair of nonmagnetic side gap layers provided on both sides in a track-width direction of the magnetic pole; a nonmagnetic trailing gap layer provided on a trailing side of the magnetic pole; a magnetic shield layer so provided as to surround the magnetic pole with both of the nonmagnetic side gap layer and the nonmagnetic trailing gap layer in between; and a magnetic seed layer formed between the nonmagnetic trailing gap layer and the magnetic shield layer, and having a saturation magnetic flux density higher than that of the magnetic shield layer. The magnetic seed layer is not formed between the nonmagnetic side gap layer and the magnetic shield layer.

    摘要翻译： 垂直磁性写头包括：磁极; 设置在所述磁极的轨道宽度方向的两侧的一对非磁性侧间隙层; 设置在磁极的后侧的非磁性拖尾间隙层; 设置为围绕磁极的磁屏蔽层，其间具有非磁性侧间隙层和非磁性拖尾间隙层; 以及形成在非磁性后隙间隔层和磁屏蔽层之间的磁性种子​​层，并且具有高于磁屏蔽层的饱和磁通密度的饱和磁通密度。 在非磁性侧间隙层和磁屏蔽层之间不形成磁性种子层。

    Perpendicular magnetic recording head
    6.
    发明申请
    Perpendicular magnetic recording head 失效
    垂直磁记录头

    公开(公告)号：US20100315741A1

    公开(公告)日：2010-12-16

    申请号：US12457521

    申请日：2009-06-12

    申请人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    发明人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    IPC分类号： G11B5/187 ,  G11B5/127

    CPC分类号： G11B5/3106 ,  G11B5/1278 ,  G11B5/255 ,  G11B5/3133 ,  G11B5/40

    摘要： A perpendicular magnetic write head capable of suppressing damage and corrosion of a magnetic pole to secure a stable writing performance is provided.A non-magnetic protruding layer protruding from a main magnetic pole layer (tip portion) toward an air bearing surface side is formed on both sides of the tip portion in a writing track width direction. The non-magnetic protruding layer is located closer to a recording medium than the tip portion during writing operation, and more likely to be in contact with the writing medium instead of the tip portion. Since the portion of the protective film covering the tip portion hardly peels off while the portion of the protective film covering the non-magnetic protruding layer is easy to peel off, the tip portion is hardly damaged or corroded. Since the tip portion is protected physically and chemically by the non-magnetic protruding layer, the deterioration of the soft magnetic characteristics of the tip portion is suppressed.

    摘要翻译： 提供了能够抑制磁极的损坏和腐蚀以确保稳定的写入性能的垂直磁性写入头。 从主磁极层（前端部）向空气轴承面侧突出的非磁性突出层形成在磁头部的书写轨道宽度方向的两侧。 在写入操作期间，非磁性突出层位于比尖端部分更靠近记录介质的位置，更可能与书写介质接触而不是尖端部分。 由于覆盖尖端部分的保护膜的部分几乎不剥离，而覆盖非磁性突出层的保护膜的部分容易剥离，所以尖端部分几乎不被损坏或腐蚀。 由于尖端部分被非磁性突出层物理和化学地保护，所以抑制了尖端部分的软磁特性的劣化。

    Perpendicular magnetic recording head including non-magnetic protruding layer
    7.
    发明授权
    Perpendicular magnetic recording head including non-magnetic protruding layer 失效
    垂直磁记录头包括非磁性突出层

    公开(公告)号：US08339737B2

    公开(公告)日：2012-12-25

    申请号：US12457521

    申请日：2009-06-12

    申请人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    发明人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3106 ,  G11B5/1278 ,  G11B5/255 ,  G11B5/3133 ,  G11B5/40

    摘要： A perpendicular magnetic write head capable of suppressing damage and corrosion of a magnetic pole to secure a stable writing performance is provided. A non-magnetic protruding layer protruding from a main magnetic pole layer (tip portion) toward an air bearing surface side is formed on both sides of the tip portion in a writing track width direction. The non-magnetic protruding layer is located closer to a recording medium than the tip portion during writing operation, and is more likely to be in contact with the writing medium instead of the tip portion. Since the protective film portion covering the tip portion hardly peels off (e.g., compared to the protective film portion covering the non-magnetic protruding layer), the tip portion is hardly damaged or corroded. Since the tip portion is protected physically and chemically by the non-magnetic protruding layer, deterioration of the soft magnetic characteristics of the tip portion is suppressed.

    摘要翻译： 提供了能够抑制磁极的损坏和腐蚀以确保稳定的写入性能的垂直磁性写入头。 从主磁极层（前端部）向空气轴承面侧突出的非磁性突出层形成在磁头部的书写轨道宽度方向的两侧。 在写入操作期间，非磁性突出层位于比尖端部分更靠近记录介质的位置，并且更可能与书写介质接触而不是尖端部分。 由于覆盖尖端部分的保护膜部分几乎不剥离（例如，与覆盖非磁性突出层的保护膜部分相比），尖端部分几乎不被损坏或腐蚀。 由于尖端部分被非磁性突出层物理和化学地保护，所以抑制了尖端部分的软磁特性的劣化。

    Perpendicular magnetic write head
    8.
    发明授权
    Perpendicular magnetic write head 失效
    垂直写磁头

    公开(公告)号：US08169739B2

    公开(公告)日：2012-05-01

    申请号：US12585456

    申请日：2009-09-15

    申请人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    发明人： Tetsuya Mino ,  Naoto Matono ,  Ikuhito Onodera ,  Kazushi Nishiyama ,  Michitoshi Tsuchiya ,  Kenji Sasaki

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163

    摘要： A perpendicular magnetic write head in which unintended erasure of information at the time of non-writing can be suppressed while keeping the capability of writing is provided. The perpendicular magnetic write head includes a magnetic pole tip portion, a first yoke portion connected to the magnetic pole tip portion, having a width larger than that of the magnetic pole tip portion, and having a recess portion in a center region thereof, and a second yoke portion embedded in the recess portion. The magnetic pole tip portion and the first yoke portion are integrally formed with a vapor deposition method, and the second yoke portion is formed with a plating method. Since the saturation flux density of the magnetic pole tip portion formed with the vapor deposition method becomes higher than that of the yoke portion, a magnetic flux intake capacity of the magnetic pole tip portion is ensured. In a magnetic domain structure of the yoke portion most of which is formed with the plating method, since an easy magnetization axis becomes likely to be directed in a direction perpendicular to an emitting direction of a magnetic flux, residual flux becomes less likely to leak out of the main magnetic pole layer at the time of non-writing.

    摘要翻译： 提供了在保持写入能力的同时抑制在非写入时的意外擦除信息的垂直磁性写入头。 垂直磁性写入头包括磁极尖端部分，连接到磁极尖端部分的第一磁轭部分，其宽度大于磁极尖端部分的宽度，并且在其中心区域具有凹部， 第二轭部嵌入凹部。 磁极端部和第一磁轭部用气相沉积法一体形成，第二磁轭部形成电镀法。 由于利用气相沉积法形成的磁极尖端部分的饱和磁通密度变得高于磁轭部分的饱和磁通密度，所以确保了磁极尖端部分的磁通量进入容量。 在磁轭部分的磁畴结构中，其大部分由电镀法形成，由于容易的磁化轴变得可能沿垂直于磁通的发射方向的方向指向，所以残余磁通不太可能泄漏 在非写入时的主磁极层。