公开(公告)号：US08797685B2

公开(公告)日：2014-08-05

申请号：US12646879

申请日：2009-12-23

Applicant: Christian Rene Bonhote ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

Inventor： Christian Rene Bonhote ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

IPC: G11B5/127

CPC classification number: G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3166 ,  G11B5/3169

Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure that is recessed from the ABS by a distance that is greater than that of the magnetic shell portion. A magnetic shield is formed over the magnetic shell and non-magnetic spacer.

Abstract translation: 一种用于数据记录的磁写头，具有限定二次闪光点的阶梯状磁性壳结构的磁性写入极。 由磁性壳体部分限定的次级火炬点可以相对于与写入磁头的空气轴承表面（ABS）的距离比在主极结构上光刻的传统闪光点更加严格地控制。 这使得使用当前可用的工具和光刻技术可以使写入头的有效喇叭点移动得更接近ABS。 写头还包括形成在磁性壳结构上的非磁性间隔层，其从ABS凹陷的距离大于磁性壳部分的距离。 在磁性壳体和非磁性间隔物上形成磁屏蔽。

公开(公告)号：US08514518B2

公开(公告)日：2013-08-20

申请号：US12114694

申请日：2008-05-02

Applicant: Ian Robson McFadyen ,  Petrus Antonius Van Der Heijden

Inventor： Ian Robson McFadyen ,  Petrus Antonius Van Der Heijden

IPC: G11B5/10 ,  G11B5/31

CPC classification number: G11B5/3163 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/313 ,  G11B5/3146 ,  G11B5/315

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100091407A1

公开(公告)日：2010-04-15

申请号：US12646879

申请日：2009-12-23

Applicant: Christian Rene Bonhote ,  Thomas Dudley Boone, JR. ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

Inventor： Christian Rene Bonhote ,  Thomas Dudley Boone, JR. ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

IPC: G11B5/60 ,  G11B5/127

CPC classification number: G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3166 ,  G11B5/3169

Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure that is recessed from the ABS by a distance that is greater than that of the magnetic shell portion. A magnetic shield is formed over the magnetic shell and non-magnetic spacer.

Abstract translation: 一种用于数据记录的磁写头，具有限定二次闪光点的阶梯状磁性壳结构的磁性写入极。 由磁性壳体部分限定的次级火炬点可以相对于与写入磁头的空气轴承表面（ABS）的距离比在主极结构上光刻的传统闪光点更加严格地控制。 这使得使用当前可用的工具和光刻技术可以使写入头的有效喇叭点移动得更接近ABS。 写头还包括形成在磁性壳结构上的非磁性间隔层，其从ABS凹陷的距离大于磁性壳部分的距离。 在磁性壳体和非磁性间隔物上形成磁屏蔽。

公开(公告)号：US06798623B2

公开(公告)日：2004-09-28

申请号：US09683191

申请日：2001-11-29

Applicant: Michael Allen Seigler ,  Petrus Antonius Van der Heijden

Inventor： Michael Allen Seigler ,  Petrus Antonius Van der Heijden

IPC: G11B5127

CPC classification number: G01R33/093 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/012 ,  G11B5/3903 ,  G11B5/3948 ,  G11B5/4886 ,  G11B2005/0008 ,  G11B2005/3996

Abstract: Disclosed is a magnetoresistive magnetic field sensor wherein the sense current flows perpendicular to the plane of the layers of the sensor. The sensor is biased into a linear operating region of the transfer curve using the sense current or a permanent magnet in conjunction with the sense current.

Abstract translation: 公开了一种磁阻磁场传感器，其中感测电流垂直于传感器的层的平面流动。 传感器利用检测电流或永久磁铁结合感应电流偏置到传输曲线的线性运行区域。

公开(公告)号：US20140036381A1

公开(公告)日：2014-02-06

申请号：US13566772

申请日：2012-08-03

Applicant: Richard Michael Brockie ,  Richard Leo Galbraith ,  Petrus Antonius Van Der Heijden ,  Roger William Wood

Inventor： Richard Michael Brockie ,  Richard Leo Galbraith ,  Petrus Antonius Van Der Heijden ,  Roger William Wood

IPC: G11B5/09

CPC classification number: G11B5/59644 ,  G11B5/012 ,  G11B5/5582 ,  G11B5/59627 ,  G11B20/10009

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080232001A1

公开(公告)日：2008-09-25

申请号：US11683972

申请日：2007-03-08

Applicant: Christian Rene Bonhote ,  Thomas Dudley Boone ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

Inventor： Christian Rene Bonhote ,  Thomas Dudley Boone ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

IPC: G11B5/33 ,  G11B5/127 ,  G11B5/147

CPC classification number: G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3166 ,  G11B5/3169

Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head may also include a magnetic trailing shield that wraps around the main pole portion. The trailing shield can have a hack edge defining a trailing shield throat height that is either between the secondary flare point or coincident or behind the secondary flare point, depending on design requirements

Abstract translation: 一种用于数据记录的磁写头，具有限定二次闪光点的阶梯状磁性壳结构的磁性写入极。 由磁性壳体部分限定的次级火炬点可以相对于与写入磁头的空气轴承表面（ABS）的距离比在主极结构上光刻的传统闪光点更加严格地控制。 这使得使用当前可用的工具和光刻技术可以使写入头的有效喇叭点移动得更接近ABS。 写头还可以包括围绕主极部分包裹的磁​​性后挡板。 后挡板可以具有限定根据设计要求定义在次级火炬点之间或重合或后面的次要耀斑点之间的尾部屏蔽喉部高度的黑色边缘

公开(公告)号：US07099121B2

公开(公告)日：2006-08-29

申请号：US10442460

申请日：2003-05-21

Applicant: Gregory John Parker ,  Thomas McLendon Crawford ,  Robert Earl Rottmayer ,  Petrus Antonius van der Heijden ,  Sharat Batra

Inventor： Gregory John Parker ,  Thomas McLendon Crawford ,  Robert Earl Rottmayer ,  Petrus Antonius van der Heijden ,  Sharat Batra

IPC: G11B5/39 ,  G11B5/127

CPC classification number: G11B5/1278 ,  G11B5/187 ,  G11B5/3116 ,  G11B5/3967

Abstract: A perpendicular magnetic recording head comprises a write pole having a pole tip adjacent to an air bearing surface, a return pole, a pedestal for magnetically coupling the write pole to the return pole, a coil for inducing magnetic flux in the write pole, and a shield for coupling magnetic flux from the coil to the return pole. Disc drives that include such recording heads are also provided.

公开(公告)号：US06985339B2

公开(公告)日：2006-01-10

申请号：US10463898

申请日：2003-06-18

Applicant: Michael Allen Seigler ,  Gregory John Parker ,  Sharat Batra ,  Robert Earl Rottmayer ,  Jonathan David Hannay ,  Petrus Antonius Van der Heijden

Inventor： Michael Allen Seigler ,  Gregory John Parker ,  Sharat Batra ,  Robert Earl Rottmayer ,  Jonathan David Hannay ,  Petrus Antonius Van der Heijden

IPC: G11B5/39

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/332 ,  G11B5/3903 ,  G11B2005/0016 ,  G11B2005/3996

Abstract: A head slider moveable relative to a storage media having a storage layer is disclosed. The disc head slider comprises a read head formed on the head slider, and comprises a first electrical contact layer adapted to carry a sensor current, a second electrical contact layer adapted to carry the sensor current, a read sensor and a bias magnet. The read sensor is configured to carry the sense current perpendicular to plane. The read sensor also has a top sensor edge, and has a bottom sensor edge aligned with the air-bearing surface to access data in the storage disc. The bias magnet magnetically biases the read sensor. Further, the first and second electrical contact layers are made of a material that does not magnetically shield the read sensor.

Abstract translation: 公开了相对于具有存储层的存储介质可移动的磁头滑块。 盘头滑动器包括形成在磁头滑块上的读头，并且包括适于承载传感器电流的第一电接触层，适于承载传感器电流的第二电接触层，读传感器和偏置磁体。 读取传感器被配置为承载垂直于平面的感测电流。 读取传感器还具有顶部传感器边缘，并且具有与空气支承表面对准的底部传感器边缘以访问存储盘中的数据。 偏置磁体使读取传感器发生磁偏置。 此外，第一和第二电接触层由不对读取的传感器进行磁屏蔽的材料制成。

公开(公告)号：US07894159B2

公开(公告)日：2011-02-22

申请号：US11737707

申请日：2007-04-19

Applicant: Byron Hassberg Lengsfield, III ,  James Terrence Olson ,  Thomas Dudley Boone, Jr. ,  Petrus Antonius Van Der Heijden

Inventor： Byron Hassberg Lengsfield, III ,  James Terrence Olson ,  Thomas Dudley Boone, Jr. ,  Petrus Antonius Van Der Heijden

IPC: G11B5/127

CPC classification number: G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315

Abstract: A magnetic write head having independent trailing and side magnetic shields. The side shields and trailing shields are independently of one another so that they can have throat heights that are different from one another. This advantageously allows the magnetic potential between the write pole and side shields to be controlled independently of one another without relying on the side gap and trailing gap thicknesses. Furthermore, magnetic performance of the write head can be improved because the side shields can be constructed with varying tapered throat heights, while the throat height of the trailing shield can remain constant.

Abstract translation: 具有独立尾部和侧面磁屏蔽的磁性写入头。 侧护罩和后挡板彼此独立，使得它们可以具有彼此不同的喉部高度。 这有利地允许写磁极和侧屏蔽之间的磁电势彼此独立地控制，而不依赖于侧间隙和后隙间隙。 此外，可以改善写头的磁性能，因为侧屏可以构造成具有变化的锥形喉部高度，而后屏蔽的喉部高度可以保持恒定。

公开(公告)号：US20100128392A1

公开(公告)日：2010-05-27

申请号：US12646858

申请日：2009-12-23

Applicant: Christian Rene Bonhote ,  Thomas Dudley Boone, JR. ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

Inventor： Christian Rene Bonhote ,  Thomas Dudley Boone, JR. ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

IPC: G11B5/127

CPC classification number: G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3166 ,  G11B5/3169

Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure and a trailing magnetic shield, a portion of which is formed over the non-magnetic spacer.

Abstract translation: 一种用于数据记录的磁写头，具有限定二次闪光点的阶梯状磁性壳结构的磁性写入极。 由磁性壳体部分限定的次级火炬点可以相对于与写入磁头的空气轴承表面（ABS）的距离比在主极结构上光刻的传统闪光点更加严格地控制。 这使得使用当前可用的工具和光刻技术可以使写入头的有效喇叭点移动得更接近ABS。 写头还包括形成在磁性壳结构上的非磁性间隔层和尾部磁屏蔽，其一部分形成在非磁性间隔物上。