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公开(公告)号:US20060198047A1
公开(公告)日:2006-09-07
申请号:US11069792
申请日:2005-03-01
申请人: Song Xue , Mark Kief , Johannes Ek , Nurul Amin , Olle Heinonen , Kaizhong Gao , Patrick Ryan
发明人: Song Xue , Mark Kief , Johannes Ek , Nurul Amin , Olle Heinonen , Kaizhong Gao , Patrick Ryan
IPC分类号: G11B5/147
CPC分类号: H01F10/3268 , B82Y25/00 , G11B5/265
摘要: The present invention relates to a recording head with a storage medium. The head includes an assist mechanism to assist operation of the head.
摘要翻译: 本发明涉及具有存储介质的记录头。 头部包括辅助机构以辅助头部的操作。
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公开(公告)号:US20050068670A1
公开(公告)日:2005-03-31
申请号:US10671809
申请日:2003-09-26
申请人: Nurul Amin , Yuming Zhou , Kaizhong Gao , Patrick Ryan , Steven Kalderon , Song Xue , Shaoping Li , Mark Kief
发明人: Nurul Amin , Yuming Zhou , Kaizhong Gao , Patrick Ryan , Steven Kalderon , Song Xue , Shaoping Li , Mark Kief
IPC分类号: G11B5/127
CPC分类号: G11B5/1274 , G11B5/1278
摘要: A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The magnetic element is spaced from the main pole. The magnetic element has a first edge closest to the main pole and a second edge furthest from the main pole. Permeability of the magnetic element increases from the first edge to the second edge.
摘要翻译: 转换头具有主极和至少一个磁性元件(例如返回极或屏蔽),其提供由主极产生的磁场的潜在返回路径。 磁性元件与主极间隔开。 磁性元件具有最靠近主极的第一边缘和最远离主极的第二边缘。 磁性元件的渗透性从第一边缘增加到第二边缘。
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公开(公告)号:US20050073774A1
公开(公告)日:2005-04-07
申请号:US10678439
申请日:2003-10-03
申请人: Feng Wang , Shaoping Li , Kaizhong Gao , Song Xue , Nurul Amin , Rick Michel , Ibro Tabakovic , Yuming Zhou
发明人: Feng Wang , Shaoping Li , Kaizhong Gao , Song Xue , Nurul Amin , Rick Michel , Ibro Tabakovic , Yuming Zhou
CPC分类号: G11B5/3116 , G11B5/17
摘要: A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The magnetic element is spaced from the main pole. The magnetic element is formed at least in part of a magnetic material having a material property that reduces side writing at the magnetic element.
摘要翻译: 转换头具有主极和至少一个磁性元件(例如返回极或屏蔽),其提供由主极产生的磁场的潜在返回路径。 磁性元件与主极间隔开。 磁性元件至少部分地由具有减小磁性元件侧面写入的材料特性的磁性材料形成。
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公开(公告)号:US07436632B2
公开(公告)日:2008-10-14
申请号:US10880879
申请日:2004-06-30
申请人: Shaoping Li , Song Xue , Kaizhong Gao , Patrick Ryan
发明人: Shaoping Li , Song Xue , Kaizhong Gao , Patrick Ryan
IPC分类号: G11B5/39
CPC分类号: G11B5/265 , G11B5/127 , G11B5/3954 , G11B5/3974
摘要: A magnetic sensor for reading information from a magnetic medium. The magnetic sensor includes a bottom electrode and a first sensor disposed above the bottom electrode. The magnetic sensor also includes a middle electrode disposed above the first sensor, a second sensor disposed above the middle electrode and a top electrode disposed above the second sensor. The bottom electrode, the middle electrode and the top electrode are utilized to electrically connect the first sensor and the second sensor in parallel.
摘要翻译: 一种用于从磁性介质读取信息的磁传感器。 磁传感器包括底电极和设置在底电极上方的第一传感器。 磁传感器还包括设置在第一传感器上方的中间电极,设置在中间电极上方的第二传感器和设置在第二传感器上方的顶部电极。 底部电极,中间电极和顶部电极用于并联地电连接第一传感器和第二传感器。
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5.
公开(公告)号:US07359161B2
公开(公告)日:2008-04-15
申请号:US10880705
申请日:2004-06-30
申请人: Shaoping Li , Song Xue , Kaizhong Gao , Michael R. Montemorra , Patrick Ryan
发明人: Shaoping Li , Song Xue , Kaizhong Gao , Michael R. Montemorra , Patrick Ryan
IPC分类号: G11B5/39
CPC分类号: G11B5/3903 , G11B2005/0005
摘要: A magnetic sensor is provided. The magnetic sensor includes a magnetoresistive multi-layered portion that has a first resistance region and a second resistance region. At least two contacts are coupled to the magnetoresistive multi-layered portion. A sensing current flows from a first contact of the at least two contacts to a second contact of the at least two contacts via the first resistance region and the second resistance region of the magnetoresistive multi-layered portion. The first resistance region promotes a primary flow of the sensing current in a first direction substantially perpendicular to surface planes of the layers of the magnetoresistive multi-layered portion, and the second resistance region promotes the primary flow of the sensing current in a second direction substantially in parallel to surface planes of the layers of the magnetoresistive multi-layered portion.
摘要翻译: 提供磁传感器。 磁传感器包括具有第一电阻区域和第二电阻区域的磁阻多层部分。 至少两个触点耦合到磁阻多层部分。 感测电流从至少两个触点的第一触点经由第一电阻区域和磁阻多层部分的第二电阻区域流过至少两个触点的第二触点。 所述第一阻抗区域促进所述感测电流在与所述磁阻多层部分的所述层的表面平行的第一方向上的主要流动,并且所述第二电阻区域基本上促进所述感测电流在第二方向上的初级流动 平行于磁阻多层部分的层的表面平面。
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6.
公开(公告)号:US20060002034A1
公开(公告)日:2006-01-05
申请号:US10880705
申请日:2004-06-30
申请人: Shaoping Li , Song Xue , Kaizhong Gao , Michael Montemorra , Patrick Ryan
发明人: Shaoping Li , Song Xue , Kaizhong Gao , Michael Montemorra , Patrick Ryan
CPC分类号: G11B5/3903 , G11B2005/0005
摘要: A magnetic sensor is provided. The magnetic sensor includes a magnetoresistive multi-layered portion that has a first resistance region and a second resistance region. At least two contacts are coupled to the magnetoresistive multi-layered portion. A sensing current flows from a first contact of the at least two contacts to a second contact of the at least two contacts via the first resistance region and the second resistance region of the magnetoresistive multi-layered portion. The first resistance region promotes a primary flow of the sensing current in a first direction substantially perpendicular to surface planes of the layers of the magnetoresistive multi-layered portion, and the second resistance region promotes the primary flow of the sensing current in a second direction substantially in parallel to surface planes of the layers of the magnetoresistive multi-layered portion.
摘要翻译: 提供磁传感器。 磁传感器包括具有第一电阻区域和第二电阻区域的磁阻多层部分。 至少两个触点耦合到磁阻多层部分。 感测电流从至少两个触点的第一触点经由第一电阻区域和磁阻多层部分的第二电阻区域流过至少两个触点的第二触点。 所述第一阻抗区域促进所述感测电流在与所述磁阻多层部分的所述层的表面平行的第一方向上的主要流动,并且所述第二电阻区域基本上促进所述感测电流在第二方向上的初级流动 平行于磁阻多层部分的层的表面平面。
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公开(公告)号:US20060002032A1
公开(公告)日:2006-01-05
申请号:US10880879
申请日:2004-06-30
申请人: Shaoping Li , Song Xue , Kaizhong Gao , Patrick Ryan
发明人: Shaoping Li , Song Xue , Kaizhong Gao , Patrick Ryan
CPC分类号: G11B5/265 , G11B5/127 , G11B5/3954 , G11B5/3974
摘要: A magnetic sensor for reading information from a magnetic medium. The magnetic sensor includes a bottom electrode and a first sensor disposed above the bottom electrode. The magnetic sensor also includes a middle electrode disposed above the first sensor, a second sensor disposed above the middle electrode and a top electrode disposed above the second sensor. The bottom electrode, the middle electrode and the top electrode are utilized to electrically connect the first sensor and the second sensor in parallel.
摘要翻译: 一种用于从磁性介质读取信息的磁传感器。 磁传感器包括底电极和设置在底电极上方的第一传感器。 磁传感器还包括设置在第一传感器上方的中间电极,设置在中间电极上方的第二传感器和设置在第二传感器上方的顶部电极。 底部电极,中间电极和顶部电极用于并联地电连接第一传感器和第二传感器。
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公开(公告)号:US08422279B2
公开(公告)日:2013-04-16
申请号:US13278247
申请日:2011-10-21
申请人: Yuankai Zheng , Dimitar V. Dimitrov , Dexin Wang , Haiwen Xi , Kaizhong Gao , Olle Heinonen , Wenzhong Zhu
发明人: Yuankai Zheng , Dimitar V. Dimitrov , Dexin Wang , Haiwen Xi , Kaizhong Gao , Olle Heinonen , Wenzhong Zhu
IPC分类号: G11C11/00
CPC分类号: G11C11/1675 , B82Y10/00 , B82Y25/00 , G11C11/16 , G11C11/161 , H01F10/3254 , H01F10/3268 , H01F10/3286 , H01F10/329 , H01L43/08
摘要: Spin-transfer torque memory includes a composite free magnetic element, a reference magnetic element having a magnetization orientation that is pinned in a reference direction, and an electrically insulating and non-magnetic tunneling barrier layer separating the composite free magnetic element from the magnetic reference element. The free magnetic element includes a hard magnetic layer exchanged coupled to a soft magnetic layer. The composite free magnetic element has a magnetization orientation that can change direction due to spin-torque transfer when a write current passes through the spin-transfer torque memory unit.
摘要翻译: 自旋转矩存储器包括复合自由磁性元件,具有沿参考方向固定的磁化取向的参考磁性元件以及将复合自由磁性元件与磁性参考元件分离的电绝缘和非磁性隧道势垒层 。 自由磁性元件包括与软磁性层交换的硬磁性层。 复合自由磁性元件具有当写入电流通过自旋转移转矩存储单元时由于自旋转矩传递而改变方向的磁化取向。
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公开(公告)号:US20120206830A1
公开(公告)日:2012-08-16
申请号:US13028915
申请日:2011-02-16
申请人: Kaizhong Gao , Olle Heinonen , Yonghua Chen
发明人: Kaizhong Gao , Olle Heinonen , Yonghua Chen
CPC分类号: G11B21/106 , B82Y10/00 , G11B5/012 , G11B5/3948 , G11B5/4886 , G11B5/596 , G11B5/746
摘要: In order to improve a consistent data track during writing to a storage medium, a plurality of read sensors are affixed to a transducer head. In one implementation, the transducer head includes multiple read sensors placed up-track of the write pole. In another implementation, the transducer head includes at least one read sensor placed up-track of the write pole and at least one read sensor placed down-track of the write pole. Each position of the multiple read sensors relative to the write pole may be unique. One or more read signals of selected read sensors are used to determine the read location and therefore the write pole location relative to the storage medium.
摘要翻译: 为了在写入存储介质期间改善一致的数据轨迹,多个读取传感器固定在换能器头上。 在一个实施方案中,换能器头部包括放置在写入极上的多个读取传感器。 在另一个实施方式中,换能器头包括至少一个读取传感器,其被放置在写入磁极的上方,并且至少一个读取传感器被放置在写入磁极的下方。 多个读取传感器相对于写入极的每个位置可以是唯一的。 使用所选择的读取传感器的一个或多个读取信号来确定读取位置并因此确定相对于存储介质的写入极点位置。
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公开(公告)号:US20100226169A1
公开(公告)日:2010-09-09
申请号:US12396905
申请日:2009-03-03
申请人: Kaizhong Gao , Haiwen Xi , Wenzhong Zhu , Olle Heinonen
发明人: Kaizhong Gao , Haiwen Xi , Wenzhong Zhu , Olle Heinonen
CPC分类号: G01R33/093 , B82Y25/00 , G01R33/1284 , G11C11/161 , G11C11/1675
摘要: Spin-transfer torque memory having a compensation element is disclosed. A spin-transfer torque memory unit includes a free magnetic layer having a magnetic easy axis and a magnetization orientation that can change direction due to spin-torque transfer when a write current passes through the spin-transfer torque memory unit; a reference magnetic element having a magnetization orientation that is pinned in a reference direction; an electrically insulating and non-magnetic tunneling barrier layer separating the free magnetic layer from the magnetic reference element; and a compensation element adjacent to the free magnetic layer. The compensation element applies a bias field on the magnetization orientation of the free magnetic layer. The bias field is formed of a first vector component parallel to the easy axis of the free magnetic layer and a second vector component orthogonal to the easy axis of the free magnetic layer. The bias field reduces a write current magnitude required to switch the direction of the magnetization orientation of the free magnetic layer.
摘要翻译: 公开了具有补偿元件的自旋转矩存储器。 自旋转移力矩存储单元包括具有磁性容易轴的自由磁性层和当写入电流通过自旋转移转矩存储单元时由于自旋转矩传递而改变方向的磁化取向; 具有被固定在参考方向上的磁化取向的参考磁性元件; 将自由磁性层与磁性参考元件分离的电绝缘和非磁性隧道势垒层; 以及与自由磁性层相邻的补偿元件。 补偿元件对自由磁性层的磁化取向施加偏置场。 偏置场由平行于自由磁性层的容易轴的第一矢量分量和与自由磁性层的容易轴正交的第二矢量分量形成。 偏置场减小了切换自由磁性层的磁化取向方向所需的写入电流幅度。
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