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    Perpendicular magnetic recoding head with a laminated pole
    4.
    发明申请
    Perpendicular magnetic recoding head with a laminated pole 有权
    垂直磁记录头与层叠极

    公开(公告)号：US20120057257A1

    公开(公告)日：2012-03-08

    申请号：US13373251

    申请日：2011-11-09

    申请人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    发明人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/147 ,  B05D1/36 ,  B05D5/00

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/3143

    摘要： A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when the trailing magnetic layer has a thickness greater than the thickness of other magnetic layers and preferably >25% of the total thickness of the magnetic layers. The thicknesses of the other magnetic layers may be equal or may become progressively smaller with increasing distance from the trailing magnetic layer. In another embodiment, the non-magnetic spacer between the trailing magnetic layer and the nearest magnetic layer is replaced by a magnetic spacer made of a soft magnetic material to promote magnetic coupling and effectively increase the thickness of the trailing magnetic layer.

    摘要翻译： 公开了一种用于PMR写入头的层叠写入极层，其中在衬底上以交替的方式形成多个“n”个磁性层和“n-1”个非磁性间隔物。 非磁性间隔物促进相邻磁性层之间的交换去耦或反铁磁耦合。 当后磁性层的厚度大于其它磁性层的厚度，优选磁性层的总厚度的25％时，写入性能得到改善。 其他磁性层的厚度可以相等或随着与后磁性层的距离的增加而逐渐变小。 在另一个实施例中，后磁性层和最近的磁性层之间的非磁性间隔物被由软磁材料制成的磁性隔离层代替，以促进磁耦合并有效地增加后磁层的厚度。

    Perpendicular magnetic recording head with a laminated pole
    5.
    发明授权
    Perpendicular magnetic recording head with a laminated pole 有权
    带磁极的垂直磁记录头

    公开(公告)号：US08059366B2

    公开(公告)日：2011-11-15

    申请号：US11879952

    申请日：2007-07-19

    申请人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    发明人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/147 ,  G11B5/127

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/3143

    摘要： A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when the trailing magnetic layer has a thickness greater than the thickness of other magnetic layers and preferably >25% of the total thickness of the magnetic layers. The thicknesses of the other magnetic layers may be equal or may become progressively smaller with increasing distance from the trailing magnetic layer. In another embodiment, the non-magnetic spacer between the trailing magnetic layer and the nearest magnetic layer is replaced by a magnetic spacer made of a soft magnetic material to promote magnetic coupling and effectively increase the thickness of the trailing magnetic layer.

    摘要翻译： 公开了一种用于PMR写入头的层叠写入极层，其中在衬底上以交替的方式形成多个“n”个磁性层和“n-1”个非磁性间隔物。 非磁性间隔物促进相邻磁性层之间的交换去耦或反铁磁耦合。 当后磁性层的厚度大于其它磁性层的厚度，优选磁性层的总厚度的25％时，写入性能得到改善。 其他磁性层的厚度可以相等或随着与后磁性层的距离的增加而逐渐变小。 在另一个实施例中，后磁性层和最近的磁性层之间的非磁性间隔物被由软磁材料制成的磁性间隔物代替，以促进磁耦合并有效地增加后磁层的厚度。

    Perpendicular magnetic recording write head with a side shield
    6.
    发明授权
    Perpendicular magnetic recording write head with a side shield 有权
    垂直磁记录头带侧面屏蔽

    公开(公告)号：US08035930B2

    公开(公告)日：2011-10-11

    申请号：US11906717

    申请日：2007-10-03

    申请人： Kenichi Takano ,  Lijie Guan ,  Yiu Liu ,  Joe Smyth ,  Moris Dovek

    发明人： Kenichi Takano ,  Lijie Guan ,  Yiu Liu ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/127

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

    摘要： A side shield structure for a PMR write head is disclosed that narrows write width and minimizes adjacent track and far track erasure. The side shield structure on each side of the write pole has two sections. One section along the ABS and adjacent to the pole tip has a height (SSH1) defined by SSH1≦[(0.6×neck height)+0.08] microns. There is a non-magnetic gap layer between the first section and a second section that is formed adjacent to the flared sides of the main pole layer and serves to suction leakage flux from the flared portion and prevent unwanted flux from reaching the first side shield sections. A fabrication method is provided that includes electroplating the first side shield sections, depositing the non-magnetic gap layer, and then electroplating the second side shield sections. Subsequently, a main pole layer and a trailing shield are formed.

    摘要翻译： 公开了一种用于PMR写头的侧屏蔽结构，其减小写入宽度并使相邻轨道和远轨道擦除最小化。 写磁极两侧的侧面屏蔽结构有两个部分。 沿着ABS并且与极尖相邻的一个部分具有由SSH1＆nlE定义的高度（SSH1）; [（0.6×颈部高度）+0.08]微米。 在第一部分和第二部分之间存在非磁性间隙层，该第二部分与主极层的扩张侧相邻形成，并用于从扩张部分吸收泄漏的焊剂，并防止不期望的焊剂到达第一侧面屏蔽部分 。 提供一种制造方法，其包括电镀第一侧屏蔽部分，沉积非磁隙层，然后电镀第二侧屏蔽部分。 随后，形成主极层和后屏蔽。

    Perpendicular magnetic recording write head with a side shield
    7.
    发明申请
    Perpendicular magnetic recording write head with a side shield 有权
    垂直磁记录头带侧面屏蔽

    公开(公告)号：US20090091861A1

    公开(公告)日：2009-04-09

    申请号：US11906717

    申请日：2007-10-03

    申请人： Kenichi Takano ,  Lijie Guan ,  Yiu Liu ,  Joe Smyth ,  Moris Dovek

    发明人： Kenichi Takano ,  Lijie Guan ,  Yiu Liu ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/33

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

    摘要： A side shield structure for a PMR write head is disclosed that narrows write width and minimizes adjacent track and far track erasure. The side shield structure on each side of the write pole has two sections. One section along the ABS and adjacent to the pole tip has a height (SSH1) defined by SSH1≦[(0.6×neck height)+0.08] microns. There is a non-magnetic gap layer between the first section and a second section that is formed adjacent to the flared sides of the main pole layer and serves to suction leakage flux from the flared portion and prevent unwanted flux from reaching the first side shield sections. A fabrication method is provided that includes electroplating the first side shield sections, depositing the non-magnetic gap layer, and then electroplating the second side shield sections. Subsequently, a main pole layer and a trailing shield are formed.

    摘要翻译： 公开了一种用于PMR写头的侧屏蔽结构，其减小写入宽度并使相邻轨道和远轨道擦除最小化。 写磁极两侧的侧面屏蔽结构有两个部分。 沿着ABS并且与极端部相邻的一个部分具有由SSH1 <= [（0.6xneck height）+0.08]]微米定义的高度（SSH1）。 在第一部分和第二部分之间存在非磁性间隙层，该第二部分与主极层的扩张侧相邻形成，并用于从扩张部分吸收泄漏的焊剂，并防止不期望的焊剂到达第一侧面屏蔽部分 。 提供一种制造方法，其包括电镀第一侧屏蔽部分，沉积非磁隙层，然后电镀第二侧屏蔽部分。 随后，形成主极层和后屏蔽。

    Perpendicular magnetic recording head with a laminated pole
    8.
    发明申请
    Perpendicular magnetic recording head with a laminated pole 有权
    带磁极的垂直磁记录头

    公开(公告)号：US20090021868A1

    公开(公告)日：2009-01-22

    申请号：US11879952

    申请日：2007-07-19

    申请人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    发明人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/33 ,  G11B5/147 ,  B05D5/12

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/3143

    摘要： A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when the trailing magnetic layer has a thickness greater than the thickness of other magnetic layers and preferably >25% of the total thickness of the magnetic layers. The thicknesses of the other magnetic layers may be equal or may become progressively smaller with increasing distance from the trailing magnetic layer. In another embodiment, the non-magnetic spacer between the trailing magnetic layer and the nearest magnetic layer is replaced by a magnetic spacer made of a soft magnetic material to promote magnetic coupling and effectively increase the thickness of the trailing magnetic layer.

    摘要翻译： 公开了一种用于PMR写入头的层叠写入极层，其中在衬底上以交替的方式形成多个“n”个磁性层和“n-1”个非磁性间隔物。 非磁性间隔物促进相邻磁性层之间的交换去耦或反铁磁耦合。 当后磁性层的厚度大于其它磁性层的厚度，优选磁性层的总厚度的25％时，写入性能得到改善。 其他磁性层的厚度可以相等或随着与后磁性层的距离的增加而逐渐变小。 在另一个实施例中，后磁性层和最近的磁性层之间的非磁性间隔物被由软磁材料制成的磁性隔离层代替，以促进磁耦合并有效地增加后磁层的厚度。

    Perpendicular magnetic recoding head with a laminated pole
    9.
    发明授权
    Perpendicular magnetic recoding head with a laminated pole 有权
    垂直磁记录头与层叠极

    公开(公告)号：US08559132B2

    公开(公告)日：2013-10-15

    申请号：US13373251

    申请日：2011-11-09

    申请人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    发明人： Kenichi Takano ,  Lijie Guan ,  Yuchen Zhou ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/127 ,  G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/3143

    摘要： A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when the trailing magnetic layer has a thickness greater than the thickness of other magnetic layers and preferably >25% of the total thickness of the magnetic layers. The thicknesses of the other magnetic layers may be equal or may become progressively smaller with increasing distance from the trailing magnetic layer. In another embodiment, the non-magnetic spacer between the trailing magnetic layer and the nearest magnetic layer is replaced by a magnetic spacer made of a soft magnetic material to promote magnetic coupling and effectively increase the thickness of the trailing magnetic layer.

    摘要翻译： 公开了一种用于PMR写入头的层叠写入极层，其中在衬底上以交替的方式形成多个“n”个磁性层和“n-1”个非磁性间隔物。 非磁性间隔物促进相邻磁性层之间的交换去耦或反铁磁耦合。 当后磁性层的厚度大于其它磁性层的厚度，优选磁性层的总厚度的25％时，写入性能得到改善。 其他磁性层的厚度可以相等或随着与后磁性层的距离的增加而逐渐变小。 在另一个实施例中，后磁性层和最近的磁性层之间的非磁性间隔物被由软磁材料制成的磁性隔离层代替，以促进磁耦合并有效地增加后磁层的厚度。

    Composite shield structure of PMR writer for high track density
    10.
    发明授权
    Composite shield structure of PMR writer for high track density 有权
    用于高轨道密度的PMR写入器的复合屏蔽结构

    公开(公告)号：US08023231B2

    公开(公告)日：2011-09-20

    申请号：US12807173

    申请日：2010-08-30

    申请人： Lijie Guan ,  Moris Dovek ,  Joe Smyth ,  Yoshitaka Sasaki

    发明人： Lijie Guan ,  Moris Dovek ,  Joe Smyth ,  Yoshitaka Sasaki

    IPC分类号： G11B5/127

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

    摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a side shield section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.

    摘要翻译： 通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。 在写入磁极的上表面之上形成一定距离的尾部屏蔽件，在写入磁极的底表面下方形成一定距离的前屏蔽件，以及形成在屏蔽件的每一侧上的侧面屏蔽部分 写柱 部分侧屏蔽厚度小于写入极的厚度。 每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。 采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。 大写字杆的喇叭角为45度至75度。