公开(公告)号：US08929030B2

公开(公告)日：2015-01-06

申请号：US11724536

申请日：2007-03-15

申请人： Chunhong Hou ,  Shaoping Li ,  John M. Wolf ,  Sining Mao

发明人： Chunhong Hou ,  Shaoping Li ,  John M. Wolf ,  Sining Mao

IPC分类号： G11B5/127 ,  G11B5/02 ,  G11B5/31 ,  G11B5/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005

摘要： A writer includes a write element having a tip portion to generate a write field during a write operation and a conductive assembly that delivers a write assist current through the tip portion in a cross-track direction to generate a write assist field during the write operation that extends beyond a medium confronting surface located at the tip portion to lower a coercivity of a magnetic medium proximate to the write element.

摘要翻译： 写入器包括具有尖端部分的写入元件，用于在写入操作期间产生写入场，以及导电组件，其在交叉轨道方向上传递写入辅助电流通过尖端部分，以在写入操作期间产生写入辅助场， 延伸超过位于尖端部分的介质面对面以降低靠近写入元件的磁性介质的矫顽力。

公开(公告)号：US20080225435A1

公开(公告)日：2008-09-18

申请号：US11724536

申请日：2007-03-15

申请人： Chunhong Hou ,  Shaoping Li ,  John M. Wolf ,  Sining Mao

发明人： Chunhong Hou ,  Shaoping Li ,  John M. Wolf ,  Sining Mao

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005

摘要： A writer includes a write element having a tip portion for generating a write field and a conductive assembly that delivers a write assist current through the tip portion to generate a write assist field.

摘要翻译： 写入器包括具有用于产生写入场的尖端部分的写入元件和通过尖端部分传送写入辅助电流以产生写入辅助字段的导电组件。

公开(公告)号：US07177122B2

公开(公告)日：2007-02-13

申请号：US10694483

申请日：2003-10-27

申请人： Chunhong Hou ,  Sining Mao ,  Eric S. Linville ,  Olle Heinonen ,  Xuefei Tang ,  Qing He ,  Eric W. Singleton ,  Song S. Xue

发明人： Chunhong Hou ,  Sining Mao ,  Eric S. Linville ,  Olle Heinonen ,  Xuefei Tang ,  Qing He ,  Eric W. Singleton ,  Song S. Xue

IPC分类号： G11B5/33

CPC分类号： G11B5/3932 ,  G11B5/3909 ,  G11B2005/0018 ,  G11B2005/3996

摘要： A biasing system for a tri-layer reader stack magnetoresistive sensor is disclosed. The tri-layer reader stack includes a first ferromagnetic free layer, a second ferromagnetic free layer, and a magnetoresistive layer between the first and second ferromagnetic free layers. The free layers are positioned in the tri-layer reader stack such that quiescent state magnetizations of the free layers are antiparallel. A biasing layer is positioned with regard to the tri-layer reader stack, typically separated from the tri-layer reader stack by a nonmagnetic spacer layer. A biasing means is positioned such that a magnetization of the biasing layer is perpendicular to the quiescent state magnetizations of the free layers. This biasing results in the free layers having biased magnetizations directed substantially orthogonal with respect to each other.

摘要翻译： 公开了一种用于三层读取器堆叠磁阻传感器的偏置系统。 三层读取器堆叠包括第一铁磁自由层，第二铁磁自由层和在第一和第二铁磁性自由层之间的磁阻层。 自由层位于三层读取器堆叠中，使得自由层的静态状态磁化反平行。 偏置层相对于三层读取器堆叠定位，通常通过非磁性间隔层与三层读取器堆叠分离。 偏置装置被定位成使得偏置层的磁化垂直于自由层的静态状态磁化。 该偏置导致自由层具有相对于彼此基本上正交的偏磁化。

公开(公告)号：US20050088789A1

公开(公告)日：2005-04-28

申请号：US10694483

申请日：2003-10-27

申请人： Chunhong Hou ,  Sining Mao ,  Eric Linville ,  Olle Heinonen ,  Xuefei Tang ,  Qing He ,  Eric Singleton ,  Song Xue

发明人： Chunhong Hou ,  Sining Mao ,  Eric Linville ,  Olle Heinonen ,  Xuefei Tang ,  Qing He ,  Eric Singleton ,  Song Xue

IPC分类号： G11B5/127 ,  G11B5/39

CPC分类号： G11B5/3932 ,  G11B5/3909 ,  G11B2005/0018 ,  G11B2005/3996

摘要： A biasing system for a tri-layer reader stack magnetoresistive sensor is disclosed. The tri-layer reader stack includes a first ferromagnetic free layer, a second ferromagnetic free layer, and a magnetoresistive layer between the first and second ferromagnetic free layers. The free layers are positioned in the tri-layer reader stack such that quiescent state magnetizations of the free layers are antiparallel. A biasing layer is positioned with regard to the tri-layer reader stack, typically separated from the tri-layer reader stack by a nonmagnetic spacer layer. A biasing means is positioned such that a magnetization of the biasing layer is perpendicular to the quiescent state magnetizations of the free layers. This biasing results in the free layers having biased magnetizations directed substantially orthogonal with respect to each other.

摘要翻译： 公开了一种用于三层读取器堆叠磁阻传感器的偏置系统。 三层读取器堆叠包括第一铁磁自由层，第二铁磁自由层和在第一和第二铁磁性自由层之间的磁阻层。 自由层位于三层读取器堆叠中，使得自由层的静态状态磁化反平行。 偏置层相对于三层读取器堆叠定位，通常通过非磁性间隔层与三层读取器堆叠分离。 偏置装置被定位成使得偏置层的磁化垂直于自由层的静态状态磁化。 该偏置导致自由层具有相对于彼此基本上正交的偏磁化。

公开(公告)号：US07382574B2

公开(公告)日：2008-06-03

申请号：US11006202

申请日：2004-12-06

申请人： Shaoping Li ,  Chunhong Hou ,  Lei Wang

发明人： Shaoping Li ,  Chunhong Hou ,  Lei Wang

IPC分类号： G11B5/147

CPC分类号： G11B5/1278

摘要： A perpendicular writer includes a write coil and a main pole having a pole tip for conducting magnetic flux to write data to a magnetic medium. The pole tip includes a plurality of magnetic layers that are magnetically coupled and biased so that their magnetic moment orientations are substantially parallel to an external surface when no write current is applied to the write coil. The pole tip is partially embedded in the yoke, such that portions of the yoke surrounding the pole tip help direct magnetic flux to the pole tip. The pole tip extends beyond the yoke, with a first end located outside the yoke and a second end located within the yoke.

摘要翻译： 垂直写入器包括写入线圈和具有用于传导磁通以将数据写入磁性介质的极尖的主极。 极尖包括磁耦合和偏置的多个磁性层，使得当没有写入电流施加到写入线圈时，它们的磁矩取向基本上平行于外部表面。 极尖部分地嵌入在轭中，使得围绕极端部的轭的部分有助于将磁通量引导到极尖。 磁极尖端延伸超过磁轭，第一端位于磁轭外部，第二端位于磁轭内。

公开(公告)号：US07561379B2

公开(公告)日：2009-07-14

申请号：US11262198

申请日：2005-10-28

申请人： Shaoping Li ,  Lei Wang ,  Chunhong Hou ,  Song S. Xue ,  Daniel John Brown

发明人： Shaoping Li ,  Lei Wang ,  Chunhong Hou ,  Song S. Xue ,  Daniel John Brown

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3146

摘要： A perpendicular writer includes a surface, a main pole proximate the surface, a return pole proximate the surface, and a back yoke connecting the main pole to the return pole distal the surface. The return pole is configured such that a magnetization of a portion of the return pole adjacent the surface is held substantially parallel to the surface during a write operation.

摘要翻译： 垂直刻录机包括表面，靠近表面的主极，靠近表面的返回极，以及将主极连接到远离表面的返回极的后轭。 返回极被配置为使得在写入操作期间，邻近表面的返回极的部分的磁化基本上平行于表面。

公开(公告)号：US20070097546A1

公开(公告)日：2007-05-03

申请号：US11262198

申请日：2005-10-28

申请人： Shaoping Li ,  Lei Wang ,  Chunhong Hou ,  Song Xue ,  Daniel Brown

发明人： Shaoping Li ,  Lei Wang ,  Chunhong Hou ,  Song Xue ,  Daniel Brown

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3146

摘要： A perpendicular writer includes a surface, a main pole proximate the surface, a return pole proximate the surface, and a back yoke connecting the main pole to the return pole distal the surface. The return pole is configured such that a magnetization of a portion of the return pole adjacent the surface is held substantially parallel to the surface during a write operation.

摘要翻译： 垂直刻录机包括表面，靠近表面的主极，靠近表面的返回极，以及将主极连接到远离表面的返回极的后轭。 返回极被配置为使得在写入操作期间，邻近表面的返回极的部分的磁化基本上平行于表面。

公开(公告)号：US20060034038A1

公开(公告)日：2006-02-16

申请号：US10916347

申请日：2004-08-11

申请人： Chunhong Hou

发明人： Chunhong Hou

IPC分类号： G06F1/16

CPC分类号： G06F1/1616 ,  G06F1/1671

摘要： A panel generally designed for a user of a portable computing device to rest his wrists upon when using the portable computing device's integrated keyboard slides to reveal recessed keys contained inside the housing of the portable computing device. Upon opening, the panel will lock and thereby engage the recessed keys. In an alternate embodiment of the invention, the recessed keys extend above the case of the portable computing device when engaged. In an alternate embodiment of the invention, the panel rotates on a hinge one hundred eighty degrees.

摘要翻译： 通常设计用于便携式计算设备的用户的面板，以便在使用便携式计算设备的集成键盘幻灯片时露出他的手腕，以露出包含在便携式计算设备的壳体内的凹入键。 打开时，面板将锁定，从而接合凹进的键。 在本发明的另一个实施例中，凹入键在接合时在便携式计算设备的壳体之上延伸。 在本发明的替代实施例中，面板在铰链上旋转180度。

公开(公告)号：US20070091675A1

公开(公告)日：2007-04-26

申请号：US11254283

申请日：2005-10-20

申请人： Chunhong Hou ,  Qing He ,  Xuefei Tang

发明人： Chunhong Hou ,  Qing He ,  Xuefei Tang

IPC分类号： G11C11/15

CPC分类号： G11C11/16

摘要： The present invention provides a tunneling giant magnetoresistance (TGMR) sensor. The sensor including an active region. The active region having a first bias layer. The sensor also including a passive region. The passive region has an insulating layer and a second bias layer. Furthermore, the insulating layer is positioned between the active region and the second bias layer.

摘要翻译： 本发明提供一种隧道式巨磁阻（TGMR）传感器。 传感器包括有源区域。 有源区具有第一偏置层。 传感器还包括被动区域。 无源区具有绝缘层和第二偏置层。 此外，绝缘层位于有源区和第二偏压层之间。

公开(公告)号：US06809909B2

公开(公告)日：2004-10-26

申请号：US10060519

申请日：2002-01-30

申请人： Chunhong Hou ,  Olle G. Heinonen ,  Mark T. Kief

发明人： Chunhong Hou ,  Olle G. Heinonen ,  Mark T. Kief

IPC分类号： G11B5127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3146 ,  G11B5/3903 ,  G11B5/3932 ,  G11B2005/3996

摘要： A giant magnetoresistive stack for use in a magnetic read head has a plurality of layers including at least one ferromagnetic layer which contributes to a giant magnetoresistive signal, a doped ferromagnetic pinned layer and a doped ferromagnetic underlayer which do not contribute to a giant magnetoresistive signal. The dopant in the doped ferromagnetic pinned layer and underlayer reduces parasitic shunting current through the giant magnetoresistive stack by providing an increase in resistivity without a decrease in magnetization.

摘要翻译： 用于磁读头的巨磁阻堆叠具有多个层，其包括至少一个有助于巨磁阻信号的铁磁层，掺杂的铁磁性被钉扎层和掺杂的铁磁性底层，其对巨磁阻信号无贡献。 掺杂的铁磁性钉扎层和底层中的掺杂剂通过在不降低磁化强度的情况下提供电阻率而减小通过巨磁阻堆叠的寄生分流电流。