公开(公告)号：US08619512B1

公开(公告)日：2013-12-31

申请号：US13531380

申请日：2012-06-22

申请人： Hongxing Yuan ,  Zhongyan Wang ,  Wentao Yan ,  Matthew R. Gibbons ,  Michael V. Morelli

发明人： Hongxing Yuan ,  Zhongyan Wang ,  Wentao Yan ,  Matthew R. Gibbons ,  Michael V. Morelli

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/3136 ,  G11B5/3163 ,  G11B2005/0021

摘要： An energy assisted magnetic recording (EAMR) head having a stress buffer for reducing the stress on a near-field transducer during thermal expansion and methods for fabricating the EAMR head are provided. The EAMR head includes a waveguide, a near-field transducer (NFT) configured to receive optical energy from the waveguide, and a cladding of the waveguide has an opening. The NFT is positioned within the opening, and an air gap is formed between the NFT and a side wall of the opening.

摘要翻译： 提供了一种具有用于在热膨胀期间减小近场换能器上的应力的应力缓冲器的能量辅助磁记录（EAMR）头和用于制造EAMR头的方法。 EAMR头包括波导，被配置为从波导接收光能的近场换能器（NFT），并且波导的包层具有开口。 NFT位于开口内，并且在NFT和开口的侧壁之间形成气隙。

公开(公告)号：US08462592B1

公开(公告)日：2013-06-11

申请号：US12948425

申请日：2010-11-17

申请人： Christopher B. Wolf ,  Eric J. Champion ,  Kroum S. Stoev ,  Matthew R. Gibbons

发明人： Christopher B. Wolf ,  Eric J. Champion ,  Kroum S. Stoev ,  Matthew R. Gibbons

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A method and system for providing an EAMR transducer is described. The EAMR transducer has an ABS and is coupled with a laser. The EAMR transducer includes a write pole, coil(s), and an energy delivery device. The write pole magnetically writes to the media. The coil(s) energize the write pole. The energy delivery device is optically coupled with the laser and includes a top distal from the ABS, a bottom proximate to the ABS, a first side, and a second side opposite to the first side. The first side has a first apex angle from a normal to the ABS and is reflective. The second side has a second apex angle from the normal and is reflective. The first and second apex angles are each at least three and not more than twenty-five degrees. The first and second sides converge such that the top is wider than the bottom.

摘要翻译： 描述了一种用于提供EAMR换能器的方法和系统。 EAMR传感器具有ABS并与激光器耦合。 EAMR传感器包括写极，线圈和能量输送装置。 写磁极写入介质。 线圈使写入极点通电。 能量输送装置与激光器光学耦合，并且包括远离ABS的顶部，靠近ABS的底部，第一侧和与第一侧相对的第二侧。 第一侧具有从法线到ABS的第一顶角，并且是反射性的。 第二面具有与法线的第二顶角并且是反射的。 第一和第二顶角各自为至少三个而不多于二十五度。 第一和第二侧会聚，使得顶部比底部更宽。

公开(公告)号：US08441909B1

公开(公告)日：2013-05-14

申请号：US13418843

申请日：2012-03-13

申请人： Pradeep K. Thayamballi ,  Wentao Yan ,  Matthew R. Gibbons ,  Dennis W. Hogg

发明人： Pradeep K. Thayamballi ,  Wentao Yan ,  Matthew R. Gibbons ,  Dennis W. Hogg

IPC分类号： G11B7/00 ,  G11B11/00

CPC分类号： G11B5/40 ,  G11B5/607 ,  G11B2005/0021

摘要： A disk drive is disclosed comprising a disk comprising a plurality of data tracks, wherein each data track comprises a plurality of data sectors. A head is actuated over the disk, wherein the head comprises a laser operable to heat the disk while writing data to the disk. When a write command is received to write data to a target data sector of a target data track, the head is positioned over the target data track. When the head reaches the target data sector, a power applied to the laser is increased to above a steady state value to compensate for a high fly height of the head. The power applied to the laser is decreased toward the steady state value while writing at least part of the data to the target data sector.

摘要翻译： 公开了一种磁盘驱动器，其包括包括多个数据磁道的磁盘，其中每个数据磁道包括多个数据扇区。 头部被驱动在盘上，其中头部包括可操作的加热盘的激光器，同时将数据写入到盘中。 当接收到写入命令以将数据写入目标数据轨道的目标数据扇区时，头部位于目标数据轨道上方。 当头到达目标数据扇区时，施加到激光器的功率增加到高于稳态值，以补偿头的高飞高。 施加到激光器的功率朝向稳态值减小，同时将至少部分数据写入目标数据扇区。

公开(公告)号：US08151441B1

公开(公告)日：2012-04-10

申请号：US12056409

申请日：2008-03-27

申请人： Steven C. Rudy ,  Matthew R. Gibbons ,  Curtis V. Macchioni ,  Yun-Fei Li ,  Changhe Shang ,  Carlos Corona

发明人： Steven C. Rudy ,  Matthew R. Gibbons ,  Curtis V. Macchioni ,  Yun-Fei Li ,  Changhe Shang ,  Carlos Corona

IPC分类号： G11B5/455 ,  G11B5/187

CPC分类号： G11B5/455 ,  G11B5/3166 ,  G11B5/3169 ,  Y10T29/49036 ,  Y10T29/49037 ,  Y10T29/49041 ,  Y10T29/49048

摘要： A method for providing an electronic lapping guide (ELG) for a structure in a magnetic transducer are described. The structure has a front edge and a back edge. The ELG includes a stripe having a top edge and a bottom edge. The method includes calibrating a sheet resistance of the stripe and calibrating an offset of the top edge of the stripe from the back edge of the structure. The method further includes terminating the lapping based at least on the sheet resistance and offset of the ELG.

摘要翻译： 描述了一种用于为磁换能器中的结构提供电子研磨导轨（ELG）的方法。 该结构具有前边缘和后边缘。 ELG包括具有顶部边缘和底部边缘的条纹。 该方法包括校准条带的薄层电阻并且校准条纹的顶边缘与结构的后边缘的偏移。 该方法还包括至少基于ELG的薄层电阻和偏移终止研磨。

公开(公告)号：US20110043941A1

公开(公告)日：2011-02-24

申请号：US12545692

申请日：2009-08-21

申请人： Eric J. Champion ,  Adam F. Torabi ,  Matthew R. Gibbons

发明人： Eric J. Champion ,  Adam F. Torabi ,  Matthew R. Gibbons

IPC分类号： G11B5/02 ,  G11B5/82 ,  G11B5/84

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/7325 ,  G11B5/743 ,  G11B5/82 ,  G11B2005/0021

摘要： A discrete track perpendicular magnetic recording (PMR) disk and a method of fabricating the disk are described. The PMR disk may include a heat sink layer disposed above a substrate, intermediate layers disposed above the heat sink layer, and a magnetic recording layer disposed above the intermediate layers. The magnetic recording layer may have raised and recessed areas, where a heat conductive material may be disposed within one or more of the recessed areas.

摘要翻译： 描述了离散轨道垂直磁记录（PMR）盘和制造盘的方法。 PMR盘可以包括设置在基板上方的散热层，设置在散热层上方的中间层和设置在中间层上方的磁记录层。 磁记录层可以具有凸起和凹陷区域，其中导热材料可以设置在一个或多个凹进区域内。

公开(公告)号：US06801411B1

公开(公告)日：2004-10-05

申请号：US09247882

申请日：1999-02-10

申请人： Marcos Lederman ,  Matthew R. Gibbons

发明人： Marcos Lederman ,  Matthew R. Gibbons

IPC分类号： G11B5139

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/313 ,  G11B5/3903 ,  G11B5/3954 ,  G11B5/3967

摘要： A dual-stripe current-pinned spin valve magnetoresistive read sensor includes a first soft ferromagnetic (FM) layer separated from a second soft FM layer by a first spacer layer formed of conductive material. The first spacer layer is also configured to receive a first biasing current for generating a first magnetic field of sufficient strength to saturate the first soft FM layer. The read sensor further includes a third soft FM layer and a fourth soft FM layer separated by a second spacer layer formed of conductive material. The second spacer layer is configured to receive a second biasing current for generating a second magnetic field of sufficient strength to saturate the fourth soft FM layer. An insulation layer also is disposed between the second soft FM layer and the third FM layer. The first and second biasing currents thereby pin magnetizations of the first and fourth soft FM layers, while having a combined negligible effect on magnetizations of substantial portions of the second and third soft ferromagnetic layers.

摘要翻译： 双条状电流钉扎自旋阀磁阻读取传感器包括通过由导电材料形成的第一间隔层与第二软FM层隔开的第一软铁磁（FM）层。 第一间隔层还被配置为接收第一偏置电流，用于产生具有足够强度的第一磁场以使第一软FM层饱和。 读取传感器还包括由导电材料形成的第二间隔层隔开的第三软FM层和第四软FM层。 第二间隔层被配置为接收第二偏置电流，用于产生具有足够强度的第二磁场以饱和第四软FM层。 绝缘层也设置在第二软FM层和第三FM层之间。 第一和第二偏置电流因此引起第一和第四软FM层的磁化，同时对第二和第三软铁磁层的实质部分的磁化具有组合的可忽略的影响。

公开(公告)号：US08259410B1

公开(公告)日：2012-09-04

申请号：US12126310

申请日：2008-05-23

申请人： Zhigang Bai ,  Suping Song ,  Matthew R. Gibbons ,  Sining Mao

发明人： Zhigang Bai ,  Suping Song ,  Matthew R. Gibbons ,  Sining Mao

IPC分类号： G11B5/133

CPC分类号： G11B5/3136 ,  G11B5/133 ,  G11B5/3143 ,  Y10T29/49032

摘要： A method and system for providing a magnetic transducer for recording to media is described. The method and system include providing a first pole, a main pole, at least one coil and at least one auxiliary pole. The main pole is for providing a magnetic field for recording to the media. The coil(s) are for energizing the main pole. The auxiliary pole is magnetically coupled with the main pole. The shield(s) are for magnetically isolating a portion of the magnetic transducer. At least one of the first pole, the auxiliary pole, and the at least one shield includes a composite magnetic material including a plurality of ferromagnetic grains in an insulating matrix.

摘要翻译： 描述了一种用于提供用于记录到介质的磁换能器的方法和系统。 该方法和系统包括提供第一极，主极，至少一个线圈和至少一个辅助极。 主极是为了向媒体提供磁场。 线圈用于激励主极。 辅助极与主极磁耦合。 屏蔽件用于磁性隔离磁换能器的一部分。 第一极，辅助极和至少一个屏蔽中的至少一个包括在绝缘矩阵中包括多个铁磁晶粒的复合磁性材料。

公开(公告)号：US08247095B2

公开(公告)日：2012-08-21

申请号：US12545692

申请日：2009-08-21

申请人： Eric J. Champion ,  Adam F. Torabi ,  Matthew R. Gibbons

发明人： Eric J. Champion ,  Adam F. Torabi ,  Matthew R. Gibbons

IPC分类号： G11B5/66

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/7325 ,  G11B5/743 ,  G11B5/82 ,  G11B2005/0021

摘要： A discrete track perpendicular magnetic recording (PMR) disk and a method of fabricating the disk are described. The PMR disk may include a heat sink layer disposed above a substrate, intermediate layers disposed above the heat sink layer, and a magnetic recording layer disposed above the intermediate layers. The magnetic recording layer may have raised and recessed areas, where a heat conductive material may be disposed within one or more of the recessed areas.

摘要翻译： 描述了离散轨道垂直磁记录（PMR）盘和制造盘的方法。 PMR盘可以包括设置在基板上方的散热层，设置在散热层上方的中间层和设置在中间层上方的磁记录层。 磁记录层可以具有凸起和凹陷区域，其中导热材料可以设置在一个或多个凹进区域内。

公开(公告)号：US06418000B1

公开(公告)日：2002-07-09

申请号：US09235098

申请日：1999-01-21

申请人： Matthew R. Gibbons ,  Marcos Lederman

发明人： Matthew R. Gibbons ,  Marcos Lederman

IPC分类号： G11B5127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/3932 ,  G11B5/3954

摘要： A dual symmetric spin valve sensor consists of outer ferromagnetic pinned layers which are pinned by a current induced magnetic field. One of the outer pinned layers is magnetically coupled to an inner pinned layer which is pinned so that the magnetization of the other outer and the inner pinned layers are in the same direction. This provides the magnetization for the free layer disposed between the two layers to properly use the spin valve effect. The ferromagnetic layers are separated by conductor layers. The pin layers are synthetic antiferromagnetic layers consisting of the two layers tightly interlayer exchange coupled. The field induced by the sense current pins the pinned layers.

摘要翻译： 双对称自旋阀传感器由外部铁磁固定层组成，其被电流感应磁场固定。 外部被钉扎层中的一个被磁耦合到被固定的内部钉扎层，使得另一个外部和内部钉扎层的磁化处于相同的方向。 这提供了设置在两层之间的自由层的磁化，以适当地使用自旋阀效应。 铁磁层由导体层分开。 针层是由两层紧密层间交换耦合组成的合成反铁磁层。 由感应电流引起的场引脚钉扎层。