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公开(公告)号：US08514518B2
公开(公告)日：2013-08-20
申请号：US12114694
申请日：2008-05-02
CPC分类号： G11B5/3163 , G11B5/11 , G11B5/1278 , G11B5/313 , G11B5/3146 , G11B5/315
摘要： A magnetic write pole structure that is configured to greatly simplify the manufacture of a perpendicular magnetic write head. The write head has a magnetic yoke that is oriented along a plane that is perpendicular to the direction of the data track. This allows the entire yoke to be formed in a single electroplating step, rather than being built up in several plated layers. The yoke can also be formed with magnetic side shields, or with a trailing or wrap around shield, which can be integral with the rest of the yoke and can be advantageously formed in the same, single electroplating step.
摘要翻译： 一种磁性写入磁极结构，其被配置为极大地简化垂直磁性写入头的制造。 写头具有沿着垂直于数据轨道的方向的平面定向的磁轭。 这允许整个磁轭在单个电镀步骤中形成，而不是在几个电镀层中形成。 磁轭还可以形成有磁性侧屏蔽件，或者具有尾部或环绕屏蔽件，其可以与磁轭的其余部分成一体，并且可以有利地形成在相同的单个电镀步骤中。
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12.发明申请公开(公告)号：US20140036381A1
公开(公告)日：2014-02-06
申请号：US13566772
申请日：2012-08-03
申请人： Richard Michael Brockie , Richard Leo Galbraith , Petrus Antonius Van Der Heijden , Roger William Wood
发明人： Richard Michael Brockie , Richard Leo Galbraith , Petrus Antonius Van Der Heijden , Roger William Wood
IPC分类号： G11B5/09
CPC分类号： G11B5/59644 , G11B5/012 , G11B5/5582 , G11B5/59627 , G11B20/10009
摘要： A method, apparatus and a data storage device are provided for implementing track following and data recovery with readback of shingled data written in overlapping shingled data tracks on a recordable surface of a storage device. Positional information is identified with data readback of shingled data written in overlapping shingled data tracks. The identified positional information is used to selectively modify at least one predefined channel parameter, for example, to provide enhanced track following and enhanced data recovery.
摘要翻译： 提供了一种方法，装置和数据存储装置，用于通过对存储装置的可记录表面上的重叠带状数据轨迹中写入的带状数据进行回读来实现跟踪跟踪和数据恢复。 使用以重叠的带状数据轨道写入的带状数据的数据回读来识别位置信息。 所识别的位置信息用于选择性地修改至少一个预定义的信道参数，例如，以提供增强的跟踪跟踪和增强的数据恢复。
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13.发明授权公开(公告)号：US08902534B2
公开(公告)日：2014-12-02
申请号：US13566772
申请日：2012-08-03
申请人： Richard Michael Brockie , Richard Leo Galbraith , Petrus Antonius Van Der Heijden , Roger William Wood
发明人： Richard Michael Brockie , Richard Leo Galbraith , Petrus Antonius Van Der Heijden , Roger William Wood
IPC分类号： G11B21/02
CPC分类号： G11B5/59644 , G11B5/012 , G11B5/5582 , G11B5/59627 , G11B20/10009
摘要： A method, apparatus and a data storage device are provided for implementing track following and data recovery with readback of shingled data written in overlapping shingled data tracks on a recordable surface of a storage device. Positional information is identified with data readback of shingled data written in overlapping shingled data tracks. The identified positional information is used to selectively modify at least one predefined channel parameter, for example, to provide enhanced track following and enhanced data recovery.
摘要翻译： 提供了一种方法，装置和数据存储装置，用于通过对存储装置的可记录表面上的重叠带状数据轨迹中写入的带状数据进行回读来实现跟踪跟踪和数据恢复。 使用以重叠的带状数据轨道写入的带状数据的数据回读来识别位置信息。 所识别的位置信息用于选择性地修改至少一个预定义的信道参数，例如，以提供增强的跟踪跟踪和增强的数据恢复。
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14.发明授权Single pole tip write head design for perpendicular recording media having reduced dependence on soft underlayers 有权用于垂直记录介质的单极端头写入头设计，对软底层的依赖性降低公开(公告)号：US08179635B2
公开(公告)日：2012-05-15
申请号：US12011654
申请日：2008-01-28
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146
摘要： A thin film, perpendicular write head for use with recording media with or without a soft under layer is disclosed. The present invention comprises an tapered auxiliary pole, situated below the main write pole and separated from the write pole by a lower non-magnetic gap. The auxiliary pole alleviates problems such as erasure after write, and cross track stray erasure fields, associated with operating conventionally designed perpendicular writes heads with media having no soft under layer.
摘要翻译： 公开了一种用于具有或不具有软底层的记录介质的薄膜垂直写头。 本发明包括一个锥形辅助极，位于主写柱的下方，并通过较低的非磁隙与写极分开。 辅助极减轻了写入之后的擦除和与不具有软底层的介质操作常规设计的垂直写头相关联的交叉轨道杂散区的问题。
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公开(公告)号：US20090273862A1
公开(公告)日：2009-11-05
申请号：US12114694
申请日：2008-05-02
IPC分类号： G11B5/33
CPC分类号： G11B5/3163 , G11B5/11 , G11B5/1278 , G11B5/313 , G11B5/3146 , G11B5/315
摘要： A magnetic write pole structure that is configured to greatly simplify the manufacture of a perpendicular magnetic write head. The write head has a magnetic yoke that is oriented along a plane that is perpendicular to the direction of the data track. This allows the entire yoke to be formed in a single electroplating step, rather than being built up in several plated layers. The yoke can also be formed with magnetic side shields, or with a trailing or wrap around shield, which can be integral with the rest of the yoke and can be advantageously formed in the same, single electroplating step.
摘要翻译： 一种磁性写入磁极结构，其被配置为极大地简化垂直磁性写入头的制造。 写头具有沿着垂直于数据轨道的方向的平面定向的磁轭。 这允许整个磁轭在单个电镀步骤中形成，而不是在几个电镀层中形成。 磁轭还可以形成有磁性侧屏蔽件，或者具有尾部或环绕屏蔽件，其可以与磁轭的其余部分成一体，并且可以有利地形成在相同的单个电镀步骤中。
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16.发明授权Signaling method and apparatus for write assist of high coercivity media using integrated half coil 有权使用集成半线圈的高矫顽力介质的写辅助信号方法和装置公开(公告)号：US08638527B2
公开(公告)日：2014-01-28
申请号：US12589042
申请日：2009-10-16
IPC分类号： G11B5/17
CPC分类号： G11B5/02 , G11B5/1278 , G11B5/3123 , G11B5/314 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A signaling method and apparatus for providing two write assist components for perpendicular thin film heads writing to high coercivity media is disclosed. The two components provided by the present invention include a media writing assist component and a head switching assist component. Circuit wiring configurations and waveforms for driving an auxiliary half coil are disclosed. These include configurations for connecting the auxiliary half coil in parallel with the main data coil, or connecting the auxiliary half coil to the thermal flight control system. Provision for both common mode signals as well as differential mode signals are disclosed. RF sinusoidal waveforms between 1 and 5 GHz have been found suitable for head switching assist functions for either symmetric current feed and common mode current configuration, or asymmetric current feed and differential mode current configuration. RF sinusoidal waveforms between 10 and 50 GHz have been found suitable for media writing assist functions for either asymmetric or symmetric current feed and differential mode configuration. Data derived signals obtained by passing the data pulse train though high pass filtration has been found to provide both head switching assist and media writing assist functionality. Data derived signals can be used with or without the RF signals.
摘要翻译： 公开了一种用于为垂直薄膜头写入高矫顽力介质的两个写入辅助部件的信令方法和装置。 本发明提供的两个部件包括介质写入辅助部件和磁头切换辅助部件。 公开了用于驱动辅助半线圈的电路布线配置和波形。 这些包括用于将辅助半线圈与主数据线圈并联连接或将辅助半线圈连接到热飞行控制系统的配置。 公开了两种共模信号以及差模信号。 已经发现1到5GHz之间的RF正弦波形适用于对称电流馈电和共模电流配置的头部切换辅助功能，或非对称电流馈电和差分模式电流配置。 已经发现10到50GHz之间的RF正弦波形适用于非对称或对称电流馈送和差分模式配置的介质写入辅助功能。 已经发现通过高通滤波通过数据脉冲串获得的数据导出信号提供了头切换辅助和媒体写入辅助功能。 数据导出信号可以使用或不使用RF信号。
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17.发明授权公开(公告)号：US08411390B2
公开(公告)日：2013-04-02
申请号：US12589038
申请日：2009-10-16
CPC分类号： G11B5/1278 , G11B5/315 , G11B5/3153
摘要： A structure for providing two write assist components for perpendicular thin film heads writing to high coercivity media is disclosed. The two components provided by the present invention include a media writing assist component and a head switching assist component. The structure includes an auxiliary half coil surrounding the pole tip at the ABS, and includes conductive elements running parallel to the pole layer which are connected to the auxiliary half coil. Integrated heat sinks located at either the ABS or at a recessed position are provided. The conductive elements can prove either symmetric or asymmetric current feed geometries, which allow differential or common mode current flow to the half coil.
摘要翻译： 公开了一种用于为垂直薄膜头写入高矫顽力介质的两个写入辅助部件的结构。 本发明提供的两个部件包括介质写入辅助部件和磁头切换辅助部件。 该结构包括在ABS处围绕极尖的辅助半线圈，并且包括与辅助半线圈连接的平行于极层延伸的导电元件。 提供位于ABS或凹陷位置的集成散热器。 导电元件可以证明对称或不对称的电流馈送几何形状，这允许差分或共模电流流向半线圈。
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18.发明申请公开(公告)号：US20110090596A1
公开(公告)日：2011-04-21
申请号：US12589038
申请日：2009-10-16
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/315 , G11B5/3153
摘要： A structure for providing two write assist components for perpendicular thin film heads writing to high coercivity media is disclosed. The two components provided by the present invention include a media writing assist component and a head switching assist component. The structure includes an auxiliary half coil surrounding the pole tip at the ABS, and includes conductive elements running parallel to the pole layer which are connected to the auxiliary half coil. Integrated heat sinks located at either the ABS or at a recessed position are provided. The conductive elements can prove either symmetric or asymmetric current feed geometries, which allow differential or common mode current flow to the half coil.
摘要翻译： 公开了一种用于为垂直薄膜头写入高矫顽力介质的两个写入辅助部件的结构。 本发明提供的两个部件包括介质写入辅助部件和磁头切换辅助部件。 该结构包括在ABS处围绕极尖的辅助半线圈，并且包括与辅助半线圈连接的平行于极层延伸的导电元件。 提供位于ABS或凹陷位置的集成散热器。 导电元件可以证明对称或不对称的电流馈送几何形状，这允许差分或共模电流流向半线圈。
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19.发明申请Signaling method and apparatus for write assist of high coercivity media using integrated half coil 有权使用集成半线圈的高矫顽力介质的写辅助信号方法和装置公开(公告)号：US20110090584A1
公开(公告)日：2011-04-21
申请号：US12589042
申请日：2009-10-16
IPC分类号： G11B5/02
CPC分类号： G11B5/02 , G11B5/1278 , G11B5/3123 , G11B5/314 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A signaling method and apparatus for providing two write assist components for perpendicular thin film heads writing to high coercivity media is disclosed. The two components provided by the present invention include a media writing assist component and a head switching assist component. Circuit wiring configurations and waveforms for driving an auxiliary half coil are disclosed. These include configurations for connecting the auxiliary half coil in parallel with the main data coil, or connecting the auxiliary half coil to the thermal flight control system. Provision for both common mode signals as well as differential mode signals are disclosed. RF sinusoidal waveforms between 1 and 5 GHz have been found suitable for head switching assist functions for either symmetric current feed and common mode current configuration, or asymmetric current feed and differential mode current configuration. RF sinusoidal waveforms between 10 and 50 GHz have been found suitable for media writing assist functions for either asymmetric or symmetric current feed and differential mode configuration. Data derived signals obtained by passing the data pulse train though high pass filtration has been found to provide both head switching assist and media writing assist functionality. Data derived signals can be used with or without the RF signals.
摘要翻译： 公开了一种用于为垂直薄膜头写入高矫顽力介质的两个写入辅助部件的信令方法和装置。 本发明提供的两个部件包括介质写入辅助部件和磁头切换辅助部件。 公开了用于驱动辅助半线圈的电路布线配置和波形。 这些包括用于将辅助半线圈与主数据线圈并联连接或将辅助半线圈连接到热飞行控制系统的配置。 公开了两种共模信号以及差模信号。 已经发现1到5GHz之间的RF正弦波形适用于对称电流馈电和共模电流配置的头部切换辅助功能，或非对称电流馈电和差分模式电流配置。 已经发现10到50GHz之间的RF正弦波形适用于非对称或对称电流馈送和差分模式配置的介质写入辅助功能。 已经发现通过高通滤波通过数据脉冲串获得的数据导出信号提供了头切换辅助和媒体写入辅助功能。 数据导出信号可以使用或不使用RF信号。
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20.发明申请Single pole tip write head design for perpendicular recording media having reduced dependence on soft underlayers 有权用于垂直记录介质的单极端头写入头设计，对软底层的依赖性降低公开(公告)号：US20090190256A1
公开(公告)日：2009-07-30
申请号：US12011654
申请日：2008-01-28
IPC分类号： G11B5/265
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146
摘要： A thin film, perpendicular write head for use with recording media with or without a soft under layer is disclosed. The present invention comprises an tapered auxiliary pole, situated below the main write pole and separated from the write pole by a lower non-magnetic gap. The auxiliary pole alleviates problems such as erasure after write, and cross track stray erasure fields, associated with operating conventionally designed perpendicular writes heads with media having no soft under layer.
摘要翻译： 公开了一种用于具有或不具有软底层的记录介质的薄膜垂直写头。 本发明包括一个锥形辅助极，位于主写柱的下方，并通过较低的非磁隙与写极分开。 辅助极减轻了写入之后的擦除和与不具有软底层的介质操作常规设计的垂直写头相关联的交叉轨道杂散区的问题。
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