公开(公告)号：US20110228428A1

公开(公告)日：2011-09-22

申请号：US12727698

申请日：2010-03-19

申请人： Dimitar Velikov Dimitrov ,  Dion Song ,  Mark William Covington ,  James Wessel

发明人： Dimitar Velikov Dimitrov ,  Dion Song ,  Mark William Covington ,  James Wessel

IPC分类号： G11B5/33

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3932 ,  G11B2005/3996

摘要： A magnetoresistive read sensor with improved sensitivity and stability is described. The sensor is a trilayer stack positioned between two electrodes. The trilayer stack has two free layers separated by a nonmagnetic layer and a biasing magnet positioned at the rear of the stack and separated from the air bearing surface by the stripe height distance. Current in the sensor is confined to regions close to the air bearing surface by an insulator layer to enhance reader sensitivity.

摘要翻译： 描述了具有改进的灵敏度和稳定性的磁阻读取传感器。 传感器是位于两个电极之间的三层叠层。 三层叠层具有由非磁性层隔开的两个自由层和位于堆叠后部的偏置磁体，并与空气轴承表面分开条纹高度距离。 传感器中的电流被绝缘体层限制在靠近空气轴承表面的区域，以增强读取器灵敏度。

公开(公告)号：US08659855B2

公开(公告)日：2014-02-25

申请号：US12727698

申请日：2010-03-19

申请人： Dimitar Velikov Dimitrov ,  Dion Song ,  Mark William Covington ,  James Wessel

发明人： Dimitar Velikov Dimitrov ,  Dion Song ,  Mark William Covington ,  James Wessel

IPC分类号： G11B5/39

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3932 ,  G11B2005/3996

摘要： A magnetoresistive read sensor with improved sensitivity and stability is described. The sensor is a trilayer stack positioned between two electrodes. The trilayer stack has two free layers separated by a nonmagnetic layer and a biasing magnet positioned at the rear of the stack and separated from the air bearing surface. Current in the sensor is confined to regions close to the air bearing surface by an insulator layer to enhance reader sensitivity.

摘要翻译： 描述了具有改进的灵敏度和稳定性的磁阻读取传感器。 传感器是位于两个电极之间的三层叠层。 三层堆叠具有由非磁性层隔开的两个自由层和位于堆叠后部并与空气支承表面分离的偏置磁体。 传感器中的电流被绝缘体层限制在靠近空气轴承表面的区域，以增强读取器灵敏度。

公开(公告)号：US20130050876A1

公开(公告)日：2013-02-28

申请号：US13222113

申请日：2011-08-31

申请人： Mark William Covington ,  Dimitar Velikov Dimitrov ,  Wonjoon Jung ,  Dion Song

发明人： Mark William Covington ,  Dimitar Velikov Dimitrov ,  Wonjoon Jung ,  Dion Song

IPC分类号： G11B21/21

CPC分类号： G11B5/6005 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3906 ,  G11B5/3932 ,  G11B5/398 ,  H01F10/3236 ,  H01F10/325 ,  H01F10/3254 ,  H01F10/3286 ,  H01L45/08 ,  H01L45/10

摘要： Disclosed herein are magnetic sensors that include: a sensor stack having a front and an opposing back, wherein the front of the sensor stack defines an air bearing surface of the magnetic sensor, and the sensor stack includes: a free layer assembly having a second magnetization direction, that is substantially perpendicular to a plane of each layer of the sensor stack; and a stabilizing structure positioned away from the air bearing surface at the back of the sensor stack.

摘要翻译： 这里公开的是磁传感器，其包括：传感器堆叠，其具有前部和相对的后部，其中传感器堆的前部限定了磁性传感器的空气轴承表面，并且传感器堆包括：具有第二磁化的自由层组件 方向，其基本上垂直于传感器堆叠的每个层的平面; 以及在传感器堆叠的背面远离空气支承表面定位的稳定结构。

公开(公告)号：US20120134057A1

公开(公告)日：2012-05-31

申请号：US12956752

申请日：2010-11-30

申请人： Dion Song ,  Mark William Covington ,  Qing He ,  Dimitar Velikov Dimitrov ,  Wei Tian ,  Wonjoon Jung ,  Sunita Bhardwaj Gangopadhyay

发明人： Dion Song ,  Mark William Covington ,  Qing He ,  Dimitar Velikov Dimitrov ,  Wei Tian ,  Wonjoon Jung ,  Sunita Bhardwaj Gangopadhyay

IPC分类号： G11B5/33 ,  H01L29/82 ,  G11B5/11

CPC分类号： G11B5/3912 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996

摘要： A magnetic element capable of detecting changes in magnetic states, such as for use as a read sensor in a data transducing head or as a solid-state non-volatile memory element. In accordance with various embodiments, the magnetic element includes a magnetically responsive stack or lamination with a first areal extent. The stack includes a spacer layer positioned between first and second ferromagnetic free layers. At least one antiferromagnetic (AFM) tab is connected to the first free layer on a surface thereof opposite the spacer layer, the AFM tab having a second areal extent that is less than the first areal extent.

摘要翻译： 能够检测磁状态变化的磁性元件，例如用作数据转换头中的读取传感器或作为固态非易失性存储元件。 根据各种实施例，磁性元件包括具有第一面积范围的磁响应叠层或叠层。 堆叠包括位于第一和第二铁磁自由层之间的间隔层。 至少一个反铁磁（AFM）接头连接到与隔离层相对的表面上的第一自由层，AFM接头具有小于第一面积范围的第二面积范围。

公开(公告)号：US08467154B2

公开(公告)日：2013-06-18

申请号：US13222113

申请日：2011-08-31

申请人： Mark William Covington ,  Dimitar Velikov Dimitrov ,  Wonjoon Jung ,  Dion Song

发明人： Mark William Covington ,  Dimitar Velikov Dimitrov ,  Wonjoon Jung ,  Dion Song

IPC分类号： G11B5/127

CPC分类号： G11B5/6005 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3906 ,  G11B5/3932 ,  G11B5/398 ,  H01F10/3236 ,  H01F10/325 ,  H01F10/3254 ,  H01F10/3286 ,  H01L45/08 ,  H01L45/10

摘要： Disclosed herein are magnetic sensors that include: a sensor stack having a front and an opposing back, wherein the front of the sensor stack defines an air bearing surface of the magnetic sensor, and the sensor stack includes: a free layer assembly having a second magnetization direction, that is substantially perpendicular to a plane of each layer of the sensor stack; and a stabilizing structure positioned away from the air bearing surface at the back of the sensor stack.

摘要翻译： 这里公开的是磁传感器，其包括：传感器堆叠，其具有前部和相对的后部，其中传感器堆的前部限定了磁性传感器的空气轴承表面，并且传感器堆包括：具有第二磁化的自由层组件 方向，其基本上垂直于传感器堆叠的每个层的平面; 以及在传感器堆叠的背面远离空气支承表面定位的稳定结构。

公开(公告)号：US08553369B2

公开(公告)日：2013-10-08

申请号：US12956752

申请日：2010-11-30

申请人： Dion Song ,  Mark William Covington ,  Qing He ,  Dimitar Velikov Dimitrov ,  Wei Tian ,  Wonjoon Jung ,  Sunita Bhardwaj Gangopadhyay

发明人： Dion Song ,  Mark William Covington ,  Qing He ,  Dimitar Velikov Dimitrov ,  Wei Tian ,  Wonjoon Jung ,  Sunita Bhardwaj Gangopadhyay

IPC分类号： G11B5/39

CPC分类号： G11B5/3912 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996

摘要： A magnetic element capable of detecting changes in magnetic states, such as for use as a read sensor in a data transducing head or as a solid-state non-volatile memory element. In accordance with various embodiments, the magnetic element includes a magnetically responsive stack or lamination with a first areal extent. The stack includes a spacer layer positioned between first and second ferromagnetic free layers. At least one antiferromagnetic (AFM) tab is connected to the first free layer on a surface thereof opposite the spacer layer, the AFM tab having a second areal extent that is less than the first areal extent.

摘要翻译： 能够检测磁状态变化的磁性元件，例如用作数据转换头中的读取传感器或作为固态非易失性存储元件。 根据各种实施例，磁性元件包括具有第一面积范围的磁响应叠层或叠层。 堆叠包括位于第一和第二铁磁自由层之间的间隔层。 至少一个反铁磁（AFM）接头连接到与隔离层相对的表面上的第一自由层，AFM接头具有小于第一面积范围的第二面积范围。

公开(公告)号：US08289660B2

公开(公告)日：2012-10-16

申请号：US12816545

申请日：2010-06-16

申请人： Dimitar Velikov Dimitrov ,  Dion Song

发明人： Dimitar Velikov Dimitrov ,  Dion Song

IPC分类号： G11B5/39

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/3912 ,  G11B5/3967 ,  G11B2005/3996

摘要： An apparatus includes a magnetoresistive read element, first and second primary shields, and an auxiliary shield. The magnetoresistive read element is located between the first and the second primary shields, and the auxiliary shield is located between the magnetoresistive read element and the first primary shield. In another embodiment, the apparatus includes a plurality of magnets located between a plurality of shields for a magnetoresistive element. The plurality of magnets is optionally offset from the magnetoresistive element.

摘要翻译： 一种装置包括磁阻读取元件，第一和第二主屏蔽以及辅助屏蔽。 磁阻读取元件位于第一和第二主屏蔽之间，辅助屏蔽位于磁阻读取元件和第一主屏蔽之间。 在另一个实施例中，该装置包括位于多个用于磁阻元件的屏蔽之间的多个磁体。 多个磁体可选地偏离磁阻元件。

公开(公告)号：US08339741B2

公开(公告)日：2012-12-25

申请号：US12489287

申请日：2009-06-22

申请人： Yifan Zhang ,  Mark T. Kief ,  Dion Song ,  Lijuan Zou ,  Charles E. Hawkinson

发明人： Yifan Zhang ,  Mark T. Kief ,  Dion Song ,  Lijuan Zou ,  Charles E. Hawkinson

IPC分类号： G11B5/33

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A magnetic writer has at least a write pole with a first partial side shield and a second partial side shield. The write pole has a leading edge and a trailing edge along an air bearing surface (ABS) and a first side and a second side along an axis orthogonal to the ABS. The first partial side shield is separated from the first side of the write pole and extends from adjacent the write pole from the trailing edge to a location intermediate that trailing edge and the leading edge.

摘要翻译： 磁性写入器至少具有带有第一部分侧面屏蔽和第二部分侧面屏蔽的写入极。 写入极具有沿着空气轴承表面（ABS）的前缘和后缘，以及沿着与ABS垂直的轴线的第一侧和第二侧。 第一部分侧面屏蔽与写入极的第一侧分离，并且从相邻的写入极从后缘延伸到中间到后缘和前沿的位置。

公开(公告)号：US20100321835A1

公开(公告)日：2010-12-23

申请号：US12489287

申请日：2009-06-22

申请人： Yifan Zhang ,  Mark T. Kief ,  Dion Song ,  Lijuan Zou ,  Charles E. Hawkinson

发明人： Yifan Zhang ,  Mark T. Kief ,  Dion Song ,  Lijuan Zou ,  Charles E. Hawkinson

IPC分类号： G11B5/33 ,  B44C1/22

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A magnetic writer includes a write pole, a first partial shield and a second partial shield. The write pole has a leading edge, a trailing edge, a first side and a second side. The first partial side shield is located on the first side of the write pole, and the second partial side shield is located on the second side of the write pole. The first partial side shield and the second partial side shield extend along side of the write pole from the trailing edge to a location intermediate that trailing edge and the leading edge so that the first partial side shield and the second partial side shield do not shield the leading edge.

摘要翻译： 磁性写入器包括写入极，第一部分屏蔽和第二部分屏蔽。 写极具有前缘，后缘，第一侧和第二侧。 第一部分侧面屏蔽位于写入极的第一侧上，第二部分侧面屏蔽位于写入极的第二侧。 第一部分侧面屏蔽和第二部分侧面屏蔽沿写入磁极的一侧从后缘延伸到中间到后缘和前缘的位置，使得第一部分侧屏蔽和第二部分侧屏蔽不屏蔽 前沿。

公开(公告)号：US20110310513A1

公开(公告)日：2011-12-22

申请号：US12816545

申请日：2010-06-16

申请人： Dimitar Dimitrov ,  Dion Song

发明人： Dimitar Dimitrov ,  Dion Song

IPC分类号： G11B5/127

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/3912 ,  G11B5/3967 ,  G11B2005/3996

摘要： An apparatus includes a magnetoresistive read element, first and second primary shields, and an auxiliary shield. The magnetoresistive read element is located between the first and the second primary shields, and the auxiliary shield is located between the magnetoresistive read element and the first primary shield. In another embodiment, the apparatus includes a plurality of magnets located between a plurality of shields for a magnetoresistive element. The plurality of magnets is optionally offset from the magnetoresistive element.

摘要翻译： 一种装置包括磁阻读取元件，第一和第二主屏蔽以及辅助屏蔽。 磁阻读取元件位于第一和第二主屏蔽之间，辅助屏蔽位于磁阻读取元件和第一主屏蔽之间。 在另一个实施例中，该装置包括位于多个用于磁阻元件的屏蔽之间的多个磁体。 多个磁体可选地偏离磁阻元件。