公开(公告)号：US07881020B2

公开(公告)日：2011-02-01

申请号：US11747683

申请日：2007-05-11

申请人： Thomas Dudley Boone, Jr. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

发明人： Thomas Dudley Boone, Jr. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

IPC分类号： G11B5/39 ,  H01L29/82 ,  G01R33/02

CPC分类号： G01R33/093 ,  B82Y25/00 ,  G01R33/095 ,  G11B5/398 ,  G11B5/3993 ,  G11C11/14 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： An extraordinary magnetoresistive sensor (EMR sensor) having reduced size and increased resolution is described. The sensor includes a plurality of electrically conductive leads contacting a magnetically active layer and also includes an electrically conductive shunt structure. The electrically conductive leads of the sensor and the shunt structure can be formed in a common photolithographic masking and etching process so that they are self aligned with one another. This avoids the need to align multiple photolithographic processing steps, thereby allowing greatly increased resolution and reduced lead spacing. The EMR sensor can be formed with a magnetically active layer that can be close to or at the air bearing surface (ABS) for improved magnetic spacing with an adjacent magnetic medium of a data recording system.

摘要翻译： 描述了具有减小的尺寸和增加的分辨率的非凡的磁阻传感器（EMR传感器）。 传感器包括接触磁性有源层的多个导电引线，并且还包括导电分路结构。 传感器和分路结构的导电引线可以以普通的光刻掩模和蚀刻工艺形成，使得它们彼此自对准。 这避免了需要对准多个光刻处理步骤，从而允许大大提高分辨率和减小引线间距。 EMR传感器可以形成有可靠近或位于空气轴承表面（ABS）的磁性活性层，以改善与数据记录系统的相邻磁性介质的磁间距。

公开(公告)号：US20110086440A1

公开(公告)日：2011-04-14

申请号：US12972332

申请日：2010-12-17

申请人： Thomas Dudley Boone, JR. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

发明人： Thomas Dudley Boone, JR. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

IPC分类号： H01L21/02

CPC分类号： G01R33/093 ,  B82Y25/00 ,  G01R33/095 ,  G11B5/398 ,  G11B5/3993 ,  G11C11/14 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing an extraordinary magnetoresistive sensor (EMR sensor) having reduced size and increased resolution is described. The sensor includes a plurality of electrically conductive leads contacting a magnetically active layer and also includes an electrically conductive shunt structure. The electrically conductive leads of the sensor and the shunt structure can be formed in a common photolithographic masking and etching process so that they are self aligned with one another. This avoids the need to align multiple photolithographic processing steps, thereby allowing greatly increased resolution and reduced lead spacing. The EMR sensor can be formed with a magnetically active layer that can be close to or at the air bearing surface (ABS) for improved magnetic spacing with an adjacent magnetic medium of a data recording system.

摘要翻译： 描述了具有减小的尺寸和增加的分辨率的非常大的磁阻传感器（EMR传感器）的制造方法。 传感器包括接触磁性有源层的多个导电引线，并且还包括导电分路结构。 传感器和分路结构的导电引线可以以普通的光刻掩模和蚀刻工艺形成，使得它们彼此自对准。 这避免了需要对准多个光刻处理步骤，从而允许大大提高分辨率和减小引线间距。 EMR传感器可以形成有可靠近或位于空气轴承表面（ABS）的磁性活性层，以改善与数据记录系统的相邻磁性介质的磁间距。

公开(公告)号：US20080278860A1

公开(公告)日：2008-11-13

申请号：US11747683

申请日：2007-05-11

申请人： Thomas Dudley Boone, JR. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

发明人： Thomas Dudley Boone, JR. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

IPC分类号： G11B5/127

CPC分类号： G01R33/093 ,  B82Y25/00 ,  G01R33/095 ,  G11B5/398 ,  G11B5/3993 ,  G11C11/14 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： An extraordinary magnetoresistive sensor (EMR sensor) having reduced size and increased resolution is described. The sensor includes a plurality of electrically conductive leads contacting a magnetically active layer and also includes an electrically conductive shunt structure. The electrically conductive leads of the sensor and the shunt structure can be formed in a common photolithographic masking and etching process so that they are self aligned with one another. This avoids the need to align multiple photolithographic processing steps, thereby allowing greatly increased resolution and reduced lead spacing. The EMR sensor can be formed with a magnetically active layer that can be close to or at the air bearing surface (ABS) for improved magnetic spacing with an adjacent magnetic medium of a data recording system.

摘要翻译： 描述了具有减小的尺寸和增加的分辨率的非凡的磁阻传感器（EMR传感器）。 传感器包括接触磁性有源层的多个导电引线，并且还包括导电分路结构。 传感器和分路结构的导电引线可以以普通的光刻掩模和蚀刻工艺形成，使得它们彼此自对准。 这避免了需要对准多个光刻处理步骤，从而允许大大提高分辨率和减小引线间距。 EMR传感器可以形成有可靠近或位于空气轴承表面（ABS）的磁性活性层，以改善与数据记录系统的相邻磁性介质的磁间距。

公开(公告)号：US08166633B2

公开(公告)日：2012-05-01

申请号：US12972332

申请日：2010-12-17

申请人： Thomas Dudley Boone, Jr. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

发明人： Thomas Dudley Boone, Jr. ,  Liesl Folks ,  Bruce Alvin Gurney ,  Jordan Asher Katine ,  Ernesto E. Marinero ,  Neil Smith

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G01R33/093 ,  B82Y25/00 ,  G01R33/095 ,  G11B5/398 ,  G11B5/3993 ,  G11C11/14 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing an extraordinary magnetoresistive sensor (EMR sensor) having reduced size and increased resolution is described. The sensor includes a plurality of electrically conductive leads contacting a magnetically active layer and also includes an electrically conductive shunt structure. The electrically conductive leads of the sensor and the shunt structure can be formed in a common photolithographic masking and etching process so that they are self aligned with one another. This avoids the need to align multiple photolithographic processing steps, thereby allowing greatly increased resolution and reduced lead spacing. The EMR sensor can be formed with a magnetically active layer that can be close to or at the air bearing surface (ABS) for improved magnetic spacing with an adjacent magnetic medium of a data recording system.

摘要翻译： 描述了具有减小的尺寸和增加的分辨率的非常大的磁阻传感器（EMR传感器）的制造方法。 传感器包括接触磁性有源层的多个导电引线，并且还包括导电分路结构。 传感器和分路结构的导电引线可以以普通的光刻掩模和蚀刻工艺形成，使得它们彼此自对准。 这避免了需要对准多个光刻处理步骤，从而允许大大提高分辨率和减小引线间距。 EMR传感器可以形成有可靠近或位于空气轴承表面（ABS）的磁性活性层，以改善与数据记录系统的相邻磁性介质的磁间距。

公开(公告)号：US07738219B2

公开(公告)日：2010-06-15

申请号：US12345724

申请日：2008-12-30

申请人： Thomas Dudley Boone, Jr. ,  Bruce Alvin Gurney ,  Ernesto E. Marinero ,  Neil Smith

发明人： Thomas Dudley Boone, Jr. ,  Bruce Alvin Gurney ,  Ernesto E. Marinero ,  Neil Smith

IPC分类号： G11B5/39 ,  G11B5/37

CPC分类号： G11C11/14 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/095 ,  G11B5/3993 ,  G11B5/4853

摘要： A Lorenz magnetoresistive sensor having a pair of voltage leads and a pair of current leads. The voltage leads are located at either side of one of the current leads and are separated by a distance that is substantially equal to the length of a bit to be measured. The Lorenz magnetoresistive sensor can be, for example an extraordinary magnetoresistive sensor having a quantum well structure such as a two dimensional electron gas and a shunt structure formed on an edge of the quantum well structure opposite the voltage and current leads.

摘要翻译： 一种具有一对电压引线和一对电流引线的洛伦兹磁阻传感器。 电压引线位于电流引线之一的两侧，并分开一段距离，该距离基本上等于要测量的位的长度。 Lorenz磁阻传感器可以是例如具有诸如二维电子气体的量子阱结构的异常磁阻传感器，以及形成在与电压和电流引线相反的量子阱结构的边缘上的分流结构。

公开(公告)号：US07508635B2

公开(公告)日：2009-03-24

申请号：US11872652

申请日：2007-10-15

申请人： Thomas Dudley Boone, Jr. ,  Bruce Alvin Gurney ,  Ernesto E. Marinero ,  Neil Smith

发明人： Thomas Dudley Boone, Jr. ,  Bruce Alvin Gurney ,  Ernesto E. Marinero ,  Neil Smith

IPC分类号： G11B5/39 ,  G11B5/37

CPC分类号： G11C11/14 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/095 ,  G11B5/3993 ,  G11B5/4853

摘要： An Extraordinary Magnetoresistive Sensor (EMR Sensor) having wide voltage lead tabs for reduced noise and increased signal to noise ratio. The leads can be formed in a triad structure, wherein a pair of voltage leads is located at either side of a current lead, or can be formed in a diad structure having a single voltage lead located at one side of a current lead.

摘要翻译： 具有宽电压引线接头的非凡磁阻传感器（EMR传感器）可降低噪音，增加信噪比。 引线可以形成为三电极结构，其中一对电压引线位于电流引线的任一侧，或者可以形成为具有位于电流引线一侧的单个电压引线的二元结构。

公开(公告)号：US08760817B2

公开(公告)日：2014-06-24

申请号：US12470827

申请日：2009-05-22

申请人： Thomas Dudley Boone, Jr. ,  Bruce Alvin Gurney ,  Neil Smith

发明人： Thomas Dudley Boone, Jr. ,  Bruce Alvin Gurney ,  Neil Smith

IPC分类号： G11B5/33

CPC分类号： G11B5/39 ,  G01R33/098 ,  G01R33/1284 ,  G11B5/398 ,  G11B2005/0005

摘要： A spin accumulation sensor having a three terminal design that allows the free layer to be located at the air bearing surface. A non-magnetic conductive spin transport layer extends from a free layer structure (located at the ABS) to a reference layer structure removed from the ABS. The sensor includes a current or voltage source for applying a current across a reference layer structure. The current or voltage source has a lead that is connected with the non-magnetic spin transport layer and also to electric ground. Circuitry for measuring a signal voltage measures a voltage between a shield that is electrically connected with the free layer structure and the ground. The free layer structure can include a spin diffusion layer that ensures that all spin current is completely dissipated before reaching the lead to the voltage source, thereby preventing shunting of the spin current to the voltage source.

摘要翻译： 具有允许自由层位于空气轴承表面的三端设计的自旋累积传感器。 非磁性导电自旋传输层从自由层结构（位于ABS处）延伸到从ABS去除的参考层结构。 传感器包括用于在参考层结构上施加电流的电流或电压源。 电流源或电压源具有与非磁性自旋传输层连接的引线，也与电接地连接。 用于测量信号电压的电路测量与自由层结构电连接的屏蔽与地之间的电压。 自由层结构可以包括自旋扩散层，其确保在到达电压源的引线之前所有自旋电流完全消散，从而防止自旋电流分流到电压源。

公开(公告)号：US20100296202A1

公开(公告)日：2010-11-25

申请号：US12470827

申请日：2009-05-22

申请人： Thomas Dudley Boone, JR. ,  Bruce Alvin Gurney ,  Neil Smith

发明人： Thomas Dudley Boone, JR. ,  Bruce Alvin Gurney ,  Neil Smith

IPC分类号： G11B5/33

CPC分类号： G11B5/39 ,  G01R33/098 ,  G01R33/1284 ,  G11B5/398 ,  G11B2005/0005

摘要： A spin accumulation sensor having a three terminal design that allows the free layer to be located at the air bearing surface. A non-magnetic conductive spin transport layer extends from a free layer structure (located at the ABS) to a reference layer structure removed from the ABS. The sensor includes a current or voltage source for applying a current across a reference layer structure. The current or voltage source has a lead that is connected with the non-magnetic spin transport layer and also to electric ground. Circuitry for measuring a signal voltage measures a voltage between a shield that is electrically connected with the free layer structure and the ground. The free layer structure can include a spin diffusion layer that ensures that all spin current is completely dissipated before reaching the lead to the voltage source, thereby preventing shunting of the spin current to the voltage source.

摘要翻译： 具有允许自由层位于空气轴承表面的三端设计的自旋累积传感器。 非磁性导电自旋传输层从自由层结构（位于ABS处）延伸到从ABS去除的参考层结构。 传感器包括用于在参考层结构上施加电流的电流或电压源。 电流源或电压源具有与非磁性自旋传输层连接的引线，也与电接地连接。 用于测量信号电压的电路测量与自由层结构电连接的屏蔽与地之间的电压。 自由层结构可以包括自旋扩散层，其确保在到达电压源的引线之前所有自旋电流完全消散，从而防止自旋电流分流到电压源。

公开(公告)号：US20090128963A1

公开(公告)日：2009-05-21

申请号：US12345724

申请日：2008-12-30

申请人： Thomas Dudley Boone, JR. ,  Bruce Alvin Gurney ,  Ernesto E. Marinaro ,  Neil Smith

发明人： Thomas Dudley Boone, JR. ,  Bruce Alvin Gurney ,  Ernesto E. Marinaro ,  Neil Smith

IPC分类号： G11B5/127

CPC分类号： G11C11/14 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/095 ,  G11B5/3993 ,  G11B5/4853

摘要： A Lorenz magnetoresistive sensor having a pair of voltage leads and a pair of current leads. The voltage leads are located at either side of one of the current leads and are separated by a distance that is substantially equal to the length of a bit to be measured. The Lorenz magnetoresistive sensor can be, for example an extraordinary magnetoresistive sensor having a quantum well structure such as a two dimensional electron gas and a shunt structure formed on an edge of the quantum well structure opposite the voltage and current leads.

摘要翻译： 一种具有一对电压引线和一对电流引线的洛伦兹磁阻传感器。 电压引线位于电流引线之一的两侧，并分开一段距离，该距离基本上等于要测量的位的长度。 Lorenz磁阻传感器可以是例如具有诸如二维电子气体的量子阱结构的异常磁阻传感器，以及形成在与电压和电流引线相反的量子阱结构的边缘上的分流结构。

公开(公告)号：US20070081277A1

公开(公告)日：2007-04-12

申请号：US11244712

申请日：2005-10-06

申请人： Liesl Folks ,  Guohan Hu ,  Yinshi Liu ,  Kenneth Mackay ,  Vladimir Nikitin ,  James Nix ,  Neil Smith

发明人： Liesl Folks ,  Guohan Hu ,  Yinshi Liu ,  Kenneth Mackay ,  Vladimir Nikitin ,  James Nix ,  Neil Smith

IPC分类号： G11B5/127 ,  G11B5/33

CPC分类号： G11B5/11 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3163 ,  G11B5/3912

摘要： Methods and apparatus provide a magnetic head that includes a magnetoresistive read sensor disposed between a first magnetic shield and a second magnetic shield. The second magnetic shield is configured to reduce effects on the read sensor due to unevenness in a topography of the read sensor.

摘要翻译： 方法和装置提供一种磁头，其包括设置在第一磁屏蔽和第二磁屏蔽之间的磁阻读取传感器。 第二磁屏蔽被配置为由于读取传感器的形状的不均匀性而减小对读取传感器的影响。