公开(公告)号：US09123381B2

公开(公告)日：2015-09-01

申请号：US13298712

申请日：2011-11-17

申请人： Manuel Anaya-Dufresne ,  Brian W. Karr ,  Gary J. Kunkel ,  Zhen Wei

发明人： Manuel Anaya-Dufresne ,  Brian W. Karr ,  Gary J. Kunkel ,  Zhen Wei

IPC分类号： G01K7/16 ,  G11B5/00 ,  G11B20/10 ,  G11B5/60

CPC分类号： G11B5/607 ,  G01K13/00 ,  G11B5/024 ,  G11B5/3133 ,  G11B5/6011 ,  G11B5/6076 ,  G11B7/0948 ,  G11B7/121 ,  G11B20/10 ,  G11B27/36

摘要： A sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.

摘要翻译： 由头部换能器支撑的传感器具有电阻温度系数（TCR）和传感器电阻。 传感器在高于环境温度的温度下工作，并响应传感器 - 介质间距的变化。 连接到传感器的导电触头具有与传感器相邻的接触电阻和与传感器相邻的横截面面积，使得接触电阻相对于传感器电阻较小，并且对传感器产生的信号可忽略不计。 多个头传感器各自支持TCR传感器，并且电源可以向每个头部的每个传感器提供偏置功率，以在存在影响传感器的热传递变化的情况下将每个传感器维持在高于环境温度的固定温度。 头传感器的TCR传感器可以包括用于感测介质的粗糙体中的一个或两个的面向轨道的TCR传感器线。

公开(公告)号：US20090274931A1

公开(公告)日：2009-11-05

申请号：US12112671

申请日：2008-04-30

申请人： Jiaoming Qiu ,  Yonghua Chen ,  Xilin Peng ,  Shaun McKinlay ,  Eric W. Singleton ,  Brian W. Karr

发明人： Jiaoming Qiu ,  Yonghua Chen ,  Xilin Peng ,  Shaun McKinlay ,  Eric W. Singleton ,  Brian W. Karr

IPC分类号： G11B5/733 ,  B05D5/12

CPC分类号： H01F41/22 ,  G01R33/098 ,  G11B5/3163 ,  G11B5/3906 ,  G11B5/3909 ,  G11B5/3932 ,  H01F10/123 ,  H01F10/14 ,  H01F10/16 ,  H01F10/265 ,  Y10T428/1164

摘要： A method including forming a multilayer structure. The multilayer structure includes a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The multilayer structure also includes an intermediate layer comprising the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The second component is different than the first component. The multilayer structure further includes a cap layer comprising the first component. The method further includes heating the multilayer structure to an annealing temperature to cause a phase transformation of the intermediate layer. Also a hard magnet including a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The hard magnet also includes a cap layer comprising the first component. The hard magnet further includes an intermediate layer between the seed layer and the cap layer. The intermediate layer includes the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The first component is different than the second component. Additionally, a read/write head including the hard magnet.

摘要翻译： 一种包括形成多层结构的方法。 多层结构包括种子层，其包含选自由Pt族金属，Fe，Mn，Ir和Co组成的组的第一组分。多层结构还包括包含第一组分和第二组分的中间层，所述第二组分选自 由Pt族金属，Fe，Mn，Ir，Co组成的第二成分与第一成分不同。 多层结构还包括包含第一部件的盖层。 该方法还包括将多层结构加热至退火温度以引起中间层的相变。 还有一种包括种子层的硬磁体，其包含选自由Pt族金属，Fe，Mn，Ir和Co组成的组的第一组分。硬磁体还包括包含第一组分的盖层。 硬磁体还包括种子层和盖层之间的中间层。 中间层包括第一组分和选自Pt族金属，Fe，Mn，Ir和Co的第二组分。第一组分不同于第二组分。 另外，包括硬磁体的读/写头。

公开(公告)号：US20110014497A1

公开(公告)日：2011-01-20

申请号：US12503312

申请日：2009-07-15

申请人： John L. Brand ,  Brian W. Karr

发明人： John L. Brand ,  Brian W. Karr

IPC分类号： G11B5/255

CPC分类号： G11B5/3106 ,  Y10T428/1164

摘要： Recording heads for a data storage system include a first side having at least a portion of a metal component. A carbon overcoat is on the first side and covers the at least a portion of a metal component. A corrosion inhibitor is incorporated in the carbon overcoat. The corrosion inhibitor is illustratively located between the carbon overcoat and the at least a portion of a metal component, on top of the carbon overcoat, or within the carbon overcoat. In an embodiment, the carbon overcoat includes diamond-like carbon.

摘要翻译： 用于数据存储系统的记录头包括具有金属部件的至少一部分的第一侧。 碳覆盖层在第一侧上并且覆盖金属部件的至少一部分。 在碳外涂层中加入缓蚀剂。 腐蚀抑制剂示例性地位于碳外涂层和金属组分的至少一部分之间，在碳外涂层的顶部上，或在碳外涂层内。 在一个实施方案中，碳外涂层包括类金刚石碳。

公开(公告)号：US20120120982A1

公开(公告)日：2012-05-17

申请号：US13298712

申请日：2011-11-17

申请人： Manuel Anaya-Dufresne ,  Brian W. Karr ,  Gary J. Kunkel ,  Zhen Wei

发明人： Manuel Anaya-Dufresne ,  Brian W. Karr ,  Gary J. Kunkel ,  Zhen Wei

IPC分类号： G01K13/00

CPC分类号： G11B5/607 ,  G01K13/00 ,  G11B5/024 ,  G11B5/3133 ,  G11B5/6011 ,  G11B5/6076 ,  G11B7/0948 ,  G11B7/121 ,  G11B20/10 ,  G11B27/36

摘要： A sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.

摘要翻译： 由头部换能器支撑的传感器具有电阻温度系数（TCR）和传感器电阻。 传感器在高于环境温度的温度下工作，并响应传感器 - 介质间距的变化。 连接到传感器的导电触头具有与传感器相邻的接触电阻和与传感器相邻的横截面面积，使得接触电阻相对于传感器电阻较小，并且对传感器产生的信号可忽略不计。 多个头传感器各自支持TCR传感器，并且电源可以向每个头部的每个传感器提供偏置功率，以在存在影响传感器的热传递变化的情况下将每个传感器维持在高于环境温度的固定温度。 头传感器的TCR传感器可以包括用于感测介质的粗糙体中的一个或两个的面向轨道的TCR传感器线。

公开(公告)号：US08116036B2

公开(公告)日：2012-02-14

申请号：US12503312

申请日：2009-07-15

申请人： John L. Brand ,  Brian W. Karr

发明人： John L. Brand ,  Brian W. Karr

IPC分类号： G11B5/127

CPC分类号： G11B5/3106 ,  Y10T428/1164

摘要： Recording heads for a data storage system include a first side having at least a portion of a metal component. A carbon overcoat is on the first side and covers the at least a portion of a metal component. A corrosion inhibitor is incorporated in the carbon overcoat. The corrosion inhibitor is illustratively located between the carbon overcoat and the at least a portion of a metal component, on top of the carbon overcoat, or within the carbon overcoat. In an embodiment, the carbon overcoat includes diamond-like carbon.

摘要翻译： 用于数据存储系统的记录头包括具有金属部件的至少一部分的第一侧。 碳覆盖层在第一侧上并且覆盖金属部件的至少一部分。 在碳外涂层中加入缓蚀剂。 腐蚀抑制剂示例性地位于碳外涂层和金属组分的至少一部分之间，在碳外涂层的顶部上，或在碳外涂层内。 在一个实施方案中，碳外涂层包括类金刚石碳。

公开(公告)号：US08932667B2

公开(公告)日：2015-01-13

申请号：US12112671

申请日：2008-04-30

申请人： Jiaoming Qiu ,  Younghua Chen ,  Xilin Peng ,  Shaun McKinlay ,  Eric W. Singleton ,  Brian W. Karr

发明人： Jiaoming Qiu ,  Younghua Chen ,  Xilin Peng ,  Shaun McKinlay ,  Eric W. Singleton ,  Brian W. Karr

IPC分类号： H01F41/22 ,  G01R33/09 ,  G11B5/31 ,  G11B5/39 ,  H01F10/14 ,  H01F10/16

CPC分类号： H01F41/22 ,  G01R33/098 ,  G11B5/3163 ,  G11B5/3906 ,  G11B5/3909 ,  G11B5/3932 ,  H01F10/123 ,  H01F10/14 ,  H01F10/16 ,  H01F10/265 ,  Y10T428/1164

摘要： A method including forming a multilayer structure. The multilayer structure includes a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The multilayer structure also includes an intermediate layer comprising the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The second component is different than the first component. The multilayer structure further includes a cap layer comprising the first component. The method further includes heating the multilayer structure to an annealing temperature to cause a phase transformation of the intermediate layer. Also a hard magnet including a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The hard magnet also includes a cap layer comprising the first component. The hard magnet further includes an intermediate layer between the seed layer and the cap layer. The intermediate layer includes the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The first component is different than the second component. Additionally, a read/write head including the hard magnet.

摘要翻译： 一种包括形成多层结构的方法。 多层结构包括种子层，其包含选自由Pt族金属，Fe，Mn，Ir和Co组成的组的第一组分。多层结构还包括包含第一组分和第二组分的中间层，所述第二组分选自 由Pt族金属，Fe，Mn，Ir，Co组成的第二成分与第一成分不同。 多层结构还包括包含第一部件的盖层。 该方法还包括将多层结构加热至退火温度以引起中间层的相变。 还有一种包括种子层的硬磁体，其包含选自由Pt族金属，Fe，Mn，Ir和Co组成的组的第一组分。硬磁体还包括包含第一组分的盖层。 硬磁体还包括种子层和盖层之间的中间层。 中间层包括第一组分和选自Pt族金属，Fe，Mn，Ir和Co的第二组分。第一组分不同于第二组分。 另外，包括硬磁体的读/写头。

公开(公告)号：US20100255349A1

公开(公告)日：2010-10-07

申请号：US12816967

申请日：2010-06-16

申请人： Zheng Gao ,  Brian W. Karr ,  Song Xue ,  Eric L. Granstrom ,  Khuong T. Tran ,  Yi X. Li

发明人： Zheng Gao ,  Brian W. Karr ,  Song Xue ,  Eric L. Granstrom ,  Khuong T. Tran ,  Yi X. Li

IPC分类号： G11B5/39

CPC分类号： G01R33/093 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3906 ,  G11B5/3909 ,  H01F10/3254 ,  H01F10/3272 ,  H01F10/3295 ,  H01L43/08 ,  Y10T428/1114 ,  Y10T428/1121

摘要： A magnetic sensor includes a sensor stack having a first magnetic portion, a second magnetic portion, and a barrier layer between the first magnetic portion and the second magnetic portion. At least one of the first magnetic portion and the second magnetic portion includes a multilayer structure having a first magnetic layer having a positive magnetostriction adjacent to the barrier layer, a second magnetic layer, and an intermediate layer between the first magnetic layer and the second magnetic layer. The magnetic sensor has an MR ratio of at least about 80% when the magnetic sensor has a resistance-area (RA) product of about 1.0 Ω·μm2.

摘要翻译： 磁传感器包括具有在第一磁性部分和第二磁性部分之间的第一磁性部分，第二磁性部分和阻挡层的传感器堆叠。 第一磁性部分和第二磁性部分中的至少一个包括多层结构，其具有与阻挡层相邻的具有正的磁致伸缩的第一磁性层，第二磁性层以及第一磁性层和第二磁性层之间的中间层 层。 当磁传感器的电阻面积（RA）积为约1.0＆OHgr·μm2时，磁传感器具有至少约80％的MR比。

公开(公告)号：US07800868B2

公开(公告)日：2010-09-21

申请号：US11305778

申请日：2005-12-16

申请人： Zheng Gao ,  Brian W. Karr ,  Song Xue ,  Eric L. Granstrom ,  Khuong T. Tran ,  Yi X. Li

发明人： Zheng Gao ,  Brian W. Karr ,  Song Xue ,  Eric L. Granstrom ,  Khuong T. Tran ,  Yi X. Li

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G01R33/093 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3906 ,  G11B5/3909 ,  H01F10/3254 ,  H01F10/3272 ,  H01F10/3295 ,  H01L43/08 ,  Y10T428/1114 ,  Y10T428/1121

摘要： A magnetic sensor includes a sensor stack having a first magnetic portion, a second magnetic portion, and a barrier layer between the first magnetic portion and the second magnetic portion. At least one of the first magnetic portion and the second magnetic portion includes a multilayer structure having a first magnetic layer having a positive magnetostriction adjacent to the barrier layer, a second magnetic layer, and an intermediate layer between the first magnetic layer and the second magnetic layer. The magnetic sensor has an MR ratio of at least about 80% when the magnetic sensor has a resistance-area (RA) product of about 1.0 Ω·μm2.

摘要翻译： 磁传感器包括具有在第一磁性部分和第二磁性部分之间的第一磁性部分，第二磁性部分和阻挡层的传感器堆叠。 第一磁性部分和第二磁性部分中的至少一个包括多层结构，其具有与阻挡层相邻的具有正的磁致伸缩的第一磁性层，第二磁性层以及第一磁性层和第二磁性层之间的中间层 层。 当磁传感器的电阻面积（RA）积为约1.0＆OHgr·μm2时，磁传感器具有至少约80％的MR比。

公开(公告)号：US06923860B1

公开(公告)日：2005-08-02

申请号：US10400903

申请日：2003-03-27

申请人： Brian W. Karr ,  Mark T. Kief ,  Janusz J. Nowak

发明人： Brian W. Karr ,  Mark T. Kief ,  Janusz J. Nowak

IPC分类号： C30B25/12 ,  G11B5/31 ,  G11B5/39 ,  H01F10/32 ,  H01F41/30 ,  H01L43/12

CPC分类号： H01L43/12 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/3909 ,  H01F10/3254 ,  H01F41/307 ,  Y10T428/24355

摘要： The present invention is a tunneling magnetoresistive (TMR) stack configured to operate in a current-perpendicular-to-plane (CPP) mode, wherein a sense current flows substantially perpendicular to a longitudinal plane of the barrier layer. The TMR stack has a plurality of layers including a barrier layer. The barrier layer may made of titanium and may be oxidized with an aggressive oxidation method, such as with UV illumination, for a predetermined time period. The barrier layer may be formed on a first ferromagnetic layer before oxidation, and then a second ferromagnetic layer may be formed on the oxidized barrier layer. The TMR stack exhibits an increased magnetoresistive (MR) ratio, a lower RA product, a higher breakdown voltage of the TMR stack, and greater thermal stability.

摘要翻译： 本发明是被配置为在电流垂直于平面（CPP）模式中工作的隧道磁阻（TMR）堆叠，其中感测电流基本垂直于阻挡层的纵向平面流动。 TMR堆叠具有包括阻挡层的多个层。 阻挡层可以由钛制成并且可以用侵蚀性氧化方法氧化，例如用UV照射预定的时间段。 阻挡层可以在氧化之前的第一铁磁层上形成，然后可以在氧化的阻挡层上形成第二铁磁层。 TMR堆叠表现出增加的磁阻（MR）比，较低的RA乘积，TMR叠层的更高的击穿电压和更大的热稳定性。

公开(公告)号：US06534425B1

公开(公告)日：2003-03-18

申请号：US09665093

申请日：2000-09-20

申请人： Brian W. Karr ,  Lance E. Stover ,  Jianxin Zhu

发明人： Brian W. Karr ,  Lance E. Stover ,  Jianxin Zhu

IPC分类号： G03F900

CPC分类号： G03F1/50 ,  Y10S438/949

摘要： A photolithography reticle for use in conjunction with an exposure tool to produce a tapered sidewall profile in photoresist includes a solid portion and multiple sub-resolution line portions. The solid portion has a width which is greater than a resolution of the exposure tool. The sub-resolution line portions have widths which are less than the resolution of the exposure tool. Each of the sub-resolution line portions is spaced apart from the solid portion and from the others of the plurality of sub-resolution line portions by less than the resolution of the exposure tool.

摘要翻译： 用于与曝光工具结合使用以在光致抗蚀剂中产生锥形侧壁轮廓的光刻掩模版包括实心部分和多个次分辨线部分。 实心部分的宽度大于曝光工具的分辨率。 子分辨线部分的宽度小于曝光工具的分辨率。 每个子分辨率线部分与固体部分和多个子分辨线部分中的其它子部分之间的距离小于曝光工具的分辨率。