公开(公告)号：US08526275B1

公开(公告)日：2013-09-03

申请号：US13458949

申请日：2012-04-27

申请人： Hongxing Yuan ,  Zhongyan Wang ,  Wentao Yan ,  Yanfeng Chen ,  Matthew R. Gibbons ,  Zhong Shi

发明人： Hongxing Yuan ,  Zhongyan Wang ,  Wentao Yan ,  Yanfeng Chen ,  Matthew R. Gibbons ,  Zhong Shi

IPC分类号： G11B11/00

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

摘要： Embodiments of the present invention are directed to a recording head for energy assisted magnetic recording. The recording head includes a near-field transducer (NFT) having a preselected shape and a surface, a writing pole on the NFT, and a non-metal heat dissipator positioned between the NFT surface and the writing pole. The non-metal heat dissipator includes a first portion in contact with the NFT surface, the first portion extending beyond an edge of the NFT surface in a first direction substantially perpendicular to an air bearing surface (ABS) and parallel to the NFT surface.

摘要翻译： 本发明的实施例涉及一种用于能量辅助磁记录的记录头。 记录头包括具有预选形状和表面的近场传感器（NFT），NFT上的书写杆和位于NFT表面和书写杆之间的非金属散热器。 非金属散热器包括与NFT表面接触的第一部分，第一部分在大致垂直于空气轴承表面（ABS）并平行于NFT表面的第一方向上延伸超过NFT表面的边缘。

公开(公告)号：US08456966B1

公开(公告)日：2013-06-04

申请号：US12971754

申请日：2010-12-17

申请人： Zhong Shi ,  Shing Lee ,  Hongxing Yuan ,  Rabee M. Ikkawi

发明人： Zhong Shi ,  Shing Lee ,  Hongxing Yuan ,  Rabee M. Ikkawi

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 and a waveguide used therein are described. The EAMR transducer is coupled with a laser that provides energy. The EAMR transducer also has an ABS that resides in proximity to a media during use. The EAMR transducer includes a waveguide, a write pole to write to a region of the media, coil(s) for energizing the write pole, and a near field transducer (NFT) proximate to the ABS for focusing the energy onto the media. The waveguide includes a mode shift compensator, first and second cladding layers, and a core between the cladding layers. The core directs energy from the laser toward the ABS and has a core index of refraction. The core is also between the mode shift compensator and the NFT. The mode shift compensator has a mode shift compensator index of refraction less than the core index of refraction.

摘要翻译： 描述了一种用于提供EAMR换能器和其中使用的波导的方法和系统。 EAMR传感器与提供能量的激光器耦合。 EAMR传感器还具有在使用过程中靠近介质的ABS。 EAMR传感器包括波导，写入介质区域的写入极，用于激励写入极的线圈以及靠近ABS的近场换能器（NFT），用于将能量聚焦到介质上。 波导包括模移位补偿器，第一和第二覆层以及覆层之间的芯。 核心将能量从激光器引向ABS并具有核心的折射率。 核心也在模式移位补偿器和NFT之间。 模式移位补偿器具有模式偏移补偿器折射率小于核心折射率。

公开(公告)号：US08248896B1

公开(公告)日：2012-08-21

申请号：US12822330

申请日：2010-06-24

申请人： Hongxing Yuan ,  Ge Yi ,  Shing Lee ,  Wentao Yan ,  Zhongyan Wang ,  Jinshan Li

发明人： Hongxing Yuan ,  Ge Yi ,  Shing Lee ,  Wentao Yan ,  Zhongyan Wang ,  Jinshan Li

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G02B6/12004 ,  G11B5/3116 ,  G11B5/3136 ,  G11B5/6088 ,  G11B2005/0021

摘要： An energy assisted magnetic recording (EAMR) transducer coupled with a laser is described. The EAMR transducer has an air-bearing surface (ABS) residing near a media during use. The laser provides energy. The transducer includes a waveguide, a near field transducer (NFT) proximate to the ABS, a write pole and at least one coil. The waveguide directs the energy from the laser toward the ABS. The NFT is optically coupled with the waveguide and focuses the energy onto a region of the media. The write pole writes to the region of the media. The write pole has a magnetic portion and a nonmagnetic liner. The magnetic portion has a plurality of sides and a pole thermal conductivity. The nonmagnetic liner is adjacent to at least the sides of the magnetic portion, and has a liner thermal conductivity greater than the pole thermal conductivity. The coil(s) are for energizing the write pole.

摘要翻译： 描述了与激光器耦合的能量辅助磁记录（EAMR）传感器。 在使用过程中，EAMR传感器具有驻留在介质附近的空气轴承表面（ABS）。 激光器提供能量。 换能器包括波导，接近ABS的近场换能器（NFT），写极点和至少一个线圈。 波导将能量从激光器引向ABS。 NFT与波导光学耦合，并将能量聚焦到介质的一个区域上。 写入磁极写入媒体区域。 写极具有磁性部分和非磁性衬垫。 磁性部分具有多个侧面和极导热性。 非磁性衬垫至少与磁性部分的侧面相邻，并且具有大于极导热性的衬里导热系数。 线圈用于激励写入极。

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：US08322022B1

公开(公告)日：2012-12-04

申请号：US12825098

申请日：2010-06-28

申请人： Ge Yi ,  Hongxing Yuan ,  Ming Sun ,  Dujiang Wan

发明人： Ge Yi ,  Hongxing Yuan ,  Ming Sun ,  Dujiang Wan

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3173 ,  G11B5/314 ,  G11B2005/0021 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49083

摘要： A method for providing energy assisted magnetic recording (EAMR) heads is described. The method comprises bonding a plurality of lasers to a first substrate. The plurality of lasers corresponds to the plurality of EAMR heads and is for providing energy to a plurality of EAMR transducers. The method further comprises fabricating the plurality of EAMR transducers for the plurality of EAMR heads on a second substrate, bonding the first substrate to the second substrate such that the plurality of EAMR transducers and the plurality of lasers reside between the first substrate and the second substrate, removing at least one of the first substrate and the second substrate, and separating a remaining substrate into the plurality of EAMR heads.

摘要翻译： 描述了一种用于提供能量辅助磁记录（EAMR）头的方法。 该方法包括将多个激光器接合到第一基板。 多个激光器对应于多个EAMR头，并且用于向多个EAMR换能器提供能量。 该方法还包括在第二衬底上制造用于多个EAMR头的多个EAMR换能器，将第一衬底结合到第二衬底，使得多个EAMR换能器和多个激光器位于第一衬底和第二衬底之间 去除所述第一衬底和所述第二衬底中的至少一个，以及将剩余衬底分离成所述多个EAMR头。

公开(公告)号：US08320722B1

公开(公告)日：2012-11-27

申请号：US12759491

申请日：2010-04-13

申请人： Hongxing Yuan ,  Shing Lee ,  Zhongyan Wang ,  Jinshan Li

发明人： Hongxing Yuan ,  Shing Lee ,  Zhongyan Wang ,  Jinshan Li

IPC分类号： G02B6/34 ,  G02F1/295

CPC分类号： G02B5/1861 ,  G02B6/124

摘要： A method and system for providing an optical grating are described. The optical grating is configured for light of a wavelength. The optical grating includes a top cladding, a core, and bottom cladding. The core resides between the bottom cladding and the top cladding. The core includes a plurality of discrete ridges spaced apart by a nonlinear pitch. The light traverses the top cladding before the core and has a plurality of angles of incidence with the core. The nonlinear pitch of the core is larger for a larger angle of incidence of the plurality of angles of incidence.

摘要翻译： 描述了一种用于提供光栅的方法和系统。 光栅被配置用于波长的光。 光栅包括顶部包层，芯部和底部包层。 核心位于底部包层和顶部包层之间。 芯部包括由非线性间距间隔开的多个离散脊。 光穿过芯之前的顶部包层并且具有多个与芯的入射角。 对于多个入射角的较大入射角，芯的非线性间距较大。

公开(公告)号：US08320220B1

公开(公告)日：2012-11-27

申请号：US13273203

申请日：2011-10-13

申请人： Hongxing Yuan ,  Wentao Yan ,  Shing Lee ,  Zhong Shi ,  Jerome Marcelino ,  Yunfei Li ,  Zhongyan Wang

发明人： Hongxing Yuan ,  Wentao Yan ,  Shing Lee ,  Zhong Shi ,  Jerome Marcelino ,  Yunfei Li ,  Zhongyan Wang

IPC分类号： G11B11/00

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

摘要： An energy assisted magnetic recording (EAMR) transducer coupled with a laser is described. The EAMR transducer has an air-bearing surface (ABS) residing near a media during use. The laser provides energy. The transducer includes a waveguide, a near field transducer (NFT) proximate to the ABS, a write pole, a heat spreader, and at least one coil. The waveguide directs the energy from the laser toward the ABS. The NFT is optically coupled with the waveguide, focuses the energy onto the media, and includes a disk having an NFT width. The write pole writes to the media. The heat spreader is thermally coupled with the NFT. A first portion of the heat spreader is between the NFT and the pole, is between the ABS and a second portion of the heat spreader, and has a first width. The second portion has a second width greater than the first width.

摘要翻译： 描述了与激光器耦合的能量辅助磁记录（EAMR）传感器。 在使用过程中，EAMR传感器具有驻留在介质附近的空气轴承表面（ABS）。 激光器提供能量。 换能器包括靠近ABS的波导，近场换能器（NFT），写柱，散热器和至少一个线圈。 波导将能量从激光器引向ABS。 NFT与波导光学耦合，将能量聚焦到介质上，并且包括具有NFT宽度的盘。 写入磁极写入媒体。 散热器与NFT热耦合。 散热器的第一部分在NFT和极之间，位于ABS和散热器的第二部分之间，并且具有第一宽度。 第二部分具有大于第一宽度的第二宽度。

公开(公告)号：US08532450B1

公开(公告)日：2013-09-10

申请号：US12645491

申请日：2009-12-23

申请人： Zhongyan Wang ,  Wei Gao ,  Ruolin Li ,  HongXing Yuan ,  Jinshan Li

发明人： Zhongyan Wang ,  Wei Gao ,  Ruolin Li ,  HongXing Yuan ,  Jinshan Li

IPC分类号： G02F1/295

CPC分类号： G02B5/1857

摘要： A method and system for providing an optical grating are described. The optical grating is configured for light of a wavelength and includes a first optically transparent layer, a stop layer on the first optically transparent layer, and a second optically transparent layer on the stop layer. The first optically transparent layer is continuous and includes a material. The second optically transparent layer also includes the material. The second optically transparent layer also includes a plurality of discrete ridges spaced apart by a pitch. The stop layer is configured to be invisible to the light.

摘要翻译： 描述了一种用于提供光栅的方法和系统。 光栅被配置成用于波长的光，并且包括第一光学透明层，第一光学透明层上的停止层和停止层上的第二光学透明层。 第一光学透明层是连续的并且包括材料。 第二光学透明层还包括材料。 第二光学透明层还包括由间距间隔开的多个离散脊。 停止层被配置为对光不可见。

公开(公告)号：US08670294B1

公开(公告)日：2014-03-11

申请号：US13399250

申请日：2012-02-17

申请人： Zhong Shi ,  Shing Lee ,  Hongxing Yuan ,  Sergei Sochava ,  Ronald L. Allen ,  Yunfei Li ,  Michael Morelli

发明人： Zhong Shi ,  Shing Lee ,  Hongxing Yuan ,  Sergei Sochava ,  Ronald L. Allen ,  Yunfei Li ,  Michael Morelli

IPC分类号： G11B7/00 ,  G11B5/00

CPC分类号： G11B5/6088 ,  G02B6/125 ,  G11B5/314 ,  G11B2005/0021

摘要： Systems and methods for increasing media absorption efficiency using interferometric waveguides in information storage devices are described. One such system for an interferometric waveguide assembly includes a light source, a first waveguide arm and a second waveguide arm, a splitter configured to receive light from the light source and to split the light into the first waveguide arm and the second waveguide arm, and a near field transducer (NFT) configured to receive the light from the first waveguide arm and the second waveguide arm, where the first waveguide arm and the second waveguide arm converge to form a preselected angle at a junction about opposite the splitter, and where the first waveguide arm and the second waveguide arm are configured to induce a preselected phase difference in the light arriving at the NFT.

摘要翻译： 描述了使用信息存储装置中的干涉波导来提高介质吸收效率的系统和方法。 用于干涉波导组件的一个这样的系统包括光源，第一波导臂和第二波导臂，分配器被配置为接收来自光源的光并将光分成第一波导臂和第二波导臂，以及 配置为接收来自第一波导臂和第二波导臂的光的近场换能器（NFT），其中第一波导臂和第二波导臂在与分离器相对的接合处会聚以形成预选角度，并且其中 第一波导臂和第二波导臂被配置为在到达NFT的光中引起预选的相位差。

公开(公告)号：US08625941B1

公开(公告)日：2014-01-07

申请号：US12784429

申请日：2010-05-20

申请人： Zhong Shi ,  Hongxing Yuan ,  Shing Lee ,  Zhongyan Wang ,  Ge Yi

发明人： Zhong Shi ,  Hongxing Yuan ,  Shing Lee ,  Zhongyan Wang ,  Ge Yi

IPC分类号： G02B6/34 ,  G02B6/14

摘要： Devices having reflective grating structures and methods of fabricating the same are disclosed. A bottom clad layer is disposed above a substrate. A waveguide core layer is disposed above the bottom clad layer. A top clad layer is disposed above the waveguide core layer. At least one metal grating structure is disposed adjacent to an interface between the waveguide core layer and one of the bottom clad layer and the top clad layer, where the at least one metal grating structure is configured to reflect at least a portion of an incident electromagnetic radiation coupled into the waveguide core layer.

摘要翻译： 公开了具有反射光栅结构的器件及其制造方法。 底部覆盖层设置在基板上方。 波导芯层设置在底部包层之上。 顶部覆层设置在波导芯层上方。 至少一个金属光栅结构设置在波导芯层与底包层和顶包层之一的界面附近，其中至少一个金属光栅结构被配置为反射入射电磁波的至少一部分 辐射耦合到波导芯层中。