公开(公告)号：US08307540B1

公开(公告)日：2012-11-13

申请号：US13045433

申请日：2011-03-10

申请人： Ut Tran ,  Kevin K. Lin ,  Yufeng Hu

发明人： Ut Tran ,  Kevin K. Lin ,  Yufeng Hu

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method provides an EAMR transducer. A sacrificial post is provided on an NFT distal from the ABS. This post has an edge proximate and substantially parallel to the ABS. A sacrificial mask is provided on the NFT between the post and the ABS. Optical material(s) are provided. The post is between the optical material(s) and the ABS. The post is removed. A heat sink post corresponding to the post is provided. The heat sink post has a bottom thermally coupled with the NFT and an edge proximate and substantially parallel to the ABS. Part of the heat sink post is removed, forming a heat sink having a top surface at an acute angle from the ABS. Nonmagnetic material(s) are provided on the optical material(s). A pole having a bottom surface thermally coupled with the heat sink and coil(s) are provided.

摘要翻译： 一种方法提供一种EAMR传感器。 在远离ABS的NFT上提供牺牲柱。 该柱具有靠近并且基本上平行于ABS的边缘。 在NFT之间在柱和ABS之间提供牺牲掩模。 提供光学材料。 该柱位于光学材料和ABS之间。 该帖子被删除。 提供对应于该柱的散热片。 散热柱具有与NFT热耦合的底部和靠近并且基本上平行于ABS的边缘。 去除部分散热片，形成散热片，其顶面与ABS呈锐角。 在一些或多个光学材料上提供非磁性材料。 提供具有与散热器和线圈热耦合的底表面的极。

公开(公告)号：US08456963B1

公开(公告)日：2013-06-04

申请号：US12758319

申请日：2010-04-12

申请人： Yufeng Hu ,  Ruolin Li ,  Ut Tran ,  Jinshan Li

发明人： Yufeng Hu ,  Ruolin Li ,  Ut Tran ,  Jinshan Li

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B2005/0021

摘要： An energy assisted magnetic recording (EAMR) disk drive comprises a suspension and a slider having a back side, a laser-facing surface, and an air-bearing surface (ABS) opposite the back side. The slider is mounted to the suspension on the back side. The disk drive further comprises an EAMR transducer coupled with the slider, a portion of the EAMR transducer residing in proximity to the ABS and on the laser-facing surface of the slider. The disk drive further comprises a laser coupled with the suspension and having a light emitting surface facing the laser-facing surface of the slider. The laser has an optic axis substantially parallel to the suspension. The laser provides energy substantially along the optic axis and is optically coupled with the EAMR transducer via free space. The EAMR transducer receives the energy from the laser and writes to the media using the energy.

摘要翻译： 能量辅助磁记录（EAMR）盘驱动器包括悬架和具有背面，面向激光的表面和与背面相对的空气轴承表面（ABS）的滑块。 滑块安装在背面的悬架上。 磁盘驱动器还包括与滑动器耦合的EAMR换能器，位于ABS附近的EAMR换能器的一部分和滑块的面向激光的表面。 磁盘驱动器还包括与悬架连接并具有面向滑块的面向激光的表面的发光表面的激光器。 激光器具有基本上平行于悬架的光轴。 激光器基本沿光轴提供能量，并通过自由空间与EAMR传感器光学耦合。 EAMR传感器从激光器接收能量，并使用能量写入介质。

公开(公告)号：US08834728B1

公开(公告)日：2014-09-16

申请号：US13045394

申请日：2011-03-10

申请人： Yufeng Hu ,  Shawn M. Tanner ,  Ut Tran ,  Zhongyan Wang ,  Mirzafer Abatchev

发明人： Yufeng Hu ,  Shawn M. Tanner ,  Ut Tran ,  Zhongyan Wang ,  Mirzafer Abatchev

IPC分类号： B44C1/22 ,  H01B13/00 ,  G11B7/1387 ,  G11B5/48

CPC分类号： G11B5/4866 ,  G11B7/1387

摘要： A method provides an EAMR transducer. The EAMR transducer is coupled with a laser and has an ABS configured to reside in proximity to a media during use. The method includes providing an NFT using an NFT mask. The NFT resides proximate to the ABS and focuses the laser energy onto the media. A portion of the NFT mask is removed, forming a heat sink mask covering part of the NFT. Optical material(s) are deposited, covering the heat sink mask and the NFT. The heat sink mask is removed, providing an aperture in the optical material(s). A heat sink corresponding to the aperture is provided. The heat sink bottom is thermally coupled with the NFT. A write pole for writing to the media and coil(s) for energizing the write pole are provided. The write pole has a bottom surface thermally coupled with the top surface of the heat sink.

摘要翻译： 一种方法提供一种EAMR传感器。 EAMR传感器与激光器耦合并且具有被配置为在使用期间驻留在介质附近的ABS。 该方法包括使用NFT掩码提供NFT。 NFT靠近ABS，并将激光能量聚焦到介质上。 去除NFT掩模的一部分，形成覆盖NFT部分的散热掩模。 沉积光学材料，覆盖散热掩模和NFT。 去除散热掩模，在光学材料中提供孔。 提供对应于孔的散热器。 散热器底部与NFT热耦合。 提供用于写入介质的写入极和用于激励写入极的线圈。 写极具有与散热器的顶表面热耦合的底表面。

公开(公告)号：US08749790B1

公开(公告)日：2014-06-10

申请号：US13314962

申请日：2011-12-08

申请人： Shawn M. Tanner ,  Yufeng Hu ,  Ut Tran ,  Zhongyan Wang ,  Zhong Shi ,  Sergei Sochava

发明人： Shawn M. Tanner ,  Yufeng Hu ,  Ut Tran ,  Zhongyan Wang ,  Zhong Shi ,  Sergei Sochava

IPC分类号： G01N21/55

CPC分类号： G01N21/553 ,  G01N21/7703

摘要： A structure for measuring energy absorption by a surface plasmon receptor or NFT on a waveguide comprises a first waveguide, a first input grating for coupling light comprising a first wavelength into the first waveguide, a first output grating for coupling light out of the first waveguide, a first plurality of surface plasmon receptors in cooperation with the first waveguide to receive light energy and located between the first input grating and the first output grating. The structure may further comprise a second waveguide, a second input grating for coupling light into the second waveguide, a second output grating for coupling light out of the second waveguide, a second plurality of surface plasmon receptors between the second input grating and the second output grating and in cooperation with the second waveguide to receive light energy, wherein the second plurality may be less than or greater than the first plurality.

摘要翻译： 用于测量波导上的表面等离子体激元受体或NFT的能量吸收的结构包括：第一波导，用于将包含第一波长的光引入第一波导的第一输入光栅，用于将光从第一波导耦合的第一输出光栅， 与第一波导协作以接收光能并位于第一输入光栅和第一输出光栅之间的第一多个表面等离子体激元受体。 该结构还可以包括第二波导，用于将光耦合到第二波导中的第二输入光栅，用于将光从第二波导耦合的第二输出光栅，在第二输入光栅和第二输出之间的第二多个表面等离子体激元 光栅并与第二波导配合以接收光能，其中第二多个可以小于或大于第一多个。

公开(公告)号：US08491801B1

公开(公告)日：2013-07-23

申请号：US13291702

申请日：2011-11-08

申请人： Shawn M. Tanner ,  Yufeng Hu ,  Ut Tran ,  Zhongyan Wang

发明人： Shawn M. Tanner ,  Yufeng Hu ,  Ut Tran ,  Zhongyan Wang

IPC分类号： B44C1/22 ,  G11B5/127

CPC分类号： G11B5/3133 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49032 ,  Y10T29/49048

摘要： A method and system provides a near-field transducer (NFT) for an energy assisted magnetic recording (EAMR) transducer. The method and system include forming a sacrificial NFT structure having a shape a location corresponding to the NFT. A dielectric layer is deposited. A portion of the dielectric layer resides on the sacrificial NFT structure. At least this portion of the dielectric layer on the sacrificial structure is removed. The sacrificial NFT structure is removed, exposing an NFT trench in the dielectric layer. At least one conductive layer for the NFT is deposited. A first portion of the conductive layer(s) reside in the NFT trench. A second portion of the conductive layer(s) external to the NFT trench is removed to form the NFT.

摘要翻译： 一种方法和系统为能量辅助磁记录（EAMR）传感器提供近场换能器（NFT）。 该方法和系统包括形成具有对应于NFT的位置的形状的牺牲NFT结构。 沉积介电层。 电介质层的一部分位于牺牲NFT结构上。 至少该牺牲结构上介电层的这一部分被去除。 去除牺牲NFT结构，暴露电介质层中的NFT沟槽。 沉积至少一个用于NFT的导电层。 导电层的第一部分驻留在NFT沟槽中。 除去NFT沟槽外部的导电层的第二部分以形成NFT。

公开(公告)号：US08670295B1

公开(公告)日：2014-03-11

申请号：US12973328

申请日：2010-12-20

申请人： Yufeng Hu ,  Ruolin Li ,  Ut Tran

发明人： Yufeng Hu ,  Ruolin Li ,  Ut Tran

IPC分类号： G11B11/00

CPC分类号： G11B5/6088 ,  G11B5/105 ,  G11B5/314 ,  G11B2005/0021

摘要： A method and system for providing an energy assisted magnetic recording (EAMR) transducer coupled with a laser. The EAMR transducer has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The EAMR transducer includes a write pole, at least one coil, a waveguide and an output device. The write pole is configured to write to a region of the media. The at least one coil is for energizing the write pole. The waveguide has an input optically coupled to the laser and configured to direct energy from the laser toward the ABS for heating the region of the media. The output device is optically coupled to the waveguide. The output device coupling out a portion of the energy not coupled to the media.

摘要翻译： 一种用于提供与激光器耦合的能量辅助磁记录（EAMR）传感器的方法和系统。 EAMR传感器具有配置成在使用期间驻留在介质附近的空气轴承表面（ABS）。 EAMR传感器包括写极，至少一个线圈，波导和输出装置。 写入极配置为写入介质的一个区域。 至少一个线圈用于激励写入极。 波导具有光学耦合到激光器并被配置为将能量从激光器引向ABS以加热介质区域的输入。 输出装置光耦合到波导。 输出设备耦合出未耦合到介质的能量的一部分。

公开(公告)号：US08385158B1

公开(公告)日：2013-02-26

申请号：US12574621

申请日：2009-10-06

申请人： Yufeng Hu ,  Ut Tran

发明人： Yufeng Hu ,  Ut Tran

IPC分类号： G11B11/00

CPC分类号： G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A method and system for fabricating an energy assisted magnetic recording (EAMR) transducer is described. The EAMR transducer has an air-bearing surface (ABS) and a waveguide. The method includes providing a planarized near field transducer (NFT) for the waveguide and forming a sloped surface on the planarized NFT. The sloped surface has a front edge separated from the ABS by a distance. The method and system also include providing a write pole on the sloped surface.

摘要翻译： 描述了用于制造能量辅助磁记录（EAMR）换能器的方法和系统。 EAMR传感器具有空气轴承表面（ABS）和波导。 该方法包括为波导提供平面化近场换能器（NFT），并在平坦化NFT上形成倾斜表面。 倾斜表面具有与ABS分离一定距离的前边缘。 该方法和系统还包括在倾斜表面上提供写极。

公开(公告)号：US08200054B1

公开(公告)日：2012-06-12

申请号：US12426262

申请日：2009-04-19

申请人： Ruolin Li ,  Yufeng Hu ,  Ut Tran

发明人： Ruolin Li ,  Yufeng Hu ,  Ut Tran

IPC分类号： G02B6/34 ,  G11B11/00 ,  G11B11/24

CPC分类号： G11B5/314 ,  G02B6/124 ,  G02B6/34 ,  G02B6/4215 ,  G11B5/3163 ,  G11B2005/0021

摘要： A magnetic head comprising a waveguide coupler for coupling incident electromagnetic (EM) radiation into a waveguide is disclosed. The waveguide coupler includes a bottom clad layer and a waveguide core layer formed above the bottom clad layer. An interface between the bottom clad layer and the waveguide core layer includes a first grating having a first period and a first etch depth, which are configured to couple a first portion of the incident EM radiation into the waveguide core layer. The waveguide coupler can further comprise a top clad layer formed above the waveguide core layer. An interface between the waveguide core layer and the top clad layer includes a second grating having a second period and a second etch depth. The second period and the second etch depth are configured to couple a second portion of the incident EM radiation into the waveguide core layer.

摘要翻译： 公开了一种包括用于将入射电磁（EM）辐射耦合到波导中的波导耦合器的磁头。 波导耦合器包括形成在底部包层上方的底部包层和波导芯层。 底部包层和波导芯层之间的界面包括具有第一周期和第一蚀刻深度的第一光栅，其被配置为将入射的EM辐射的第一部分耦合到波导芯层中。 波导耦合器还可以包括形成在波导芯层上方的顶部覆层。 波导芯层和顶部覆层之间的界面包括具有第二周期和第二蚀刻深度的第二光栅。 第二周期和第二蚀刻深度被配置为将入射的EM辐射的第二部分耦合到波导芯层中。

公开(公告)号：US08125856B1

公开(公告)日：2012-02-28

申请号：US12613452

申请日：2009-11-05

申请人： Ruolin Li ,  Ut Tran ,  Yufeng Hu ,  Jinshan Li

发明人： Ruolin Li ,  Ut Tran ,  Yufeng Hu ,  Jinshan Li

IPC分类号： G11B11/00

CPC分类号： G11B5/105 ,  G11B5/6088 ,  G11B2005/0021

摘要： A method and system for providing an energy assisted magnetic recording (EAMR) disk drive are described. A media for storing data and a slider are provided. The slider has a back side, a trailing face, and an air-bearing surface (ABS) opposite to the back side. At least one laser is coupled with the trailing face of the slider, and has an optic axis substantially parallel to the trailing face. The laser(s) provide energy substantially along the optic axis. Optics are coupled with the trailing face of the slider and receive the energy from the laser(s) via free space. At least one EAMR transducer coupled with the slider. At least part of the EAMR transducer resides in proximity to the ABS. The optics direct the energy from the laser(s) to the EAMR transducer(s). The EAMR transducer(s) receive the energy from the optics and write to the media using the energy.

摘要翻译： 描述了一种用于提供能量辅助磁记录（EAMR）磁盘驱动器的方法和系统。 提供了用于存储数据的介质和滑块。 滑块具有背面，后表面和与背面相对的空气轴承表面（ABS）。 至少一个激光器与滑块的后表面耦合，并且具有基本上平行于后面的光轴。 激光器基本沿着光轴提供能量。 光学器件与滑块的后表面耦合，并通过自由空间从激光器接收能量。 至少一个EAMR传感器与滑块相连。 至少部分EAMR传感器位于ABS附近。 光学器件将能量从激光器引导到EAMR传感器。 EAMR传感器从光学器件接收能量，并使用能量写入介质。

公开(公告)号：US08077557B1

公开(公告)日：2011-12-13

申请号：US12468813

申请日：2009-05-19

申请人： Yufeng Hu ,  Ruolin Li ,  Ut Tran ,  Jinshan Li

发明人： Yufeng Hu ,  Ruolin Li ,  Ut Tran ,  Jinshan Li

IPC分类号： G11B11/05

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

摘要： A magnetic recording device comprises a multi-aperture vertical cavity surface emitting laser (VCSEL) operably coupled to a magnetic recording head and a plurality of waveguides disposed in the magnetic recording head. Each of the plurality of waveguides has a first end coupled to a different aperture of the multi-aperture VCSEL. The magnetic recording device further comprises a near field transducer disposed in the magnetic recording head. Each of the plurality of waveguides has a second end coupled to the near field transducer.

摘要翻译： 磁记录装置包括可操作地耦合到磁记录头的多孔垂直腔表面发射激光器（VCSEL）和设置在磁记录头中的多个波导。 多个波导中的每一个具有耦合到多孔径VCSEL的不同孔径的第一端。 磁记录装置还包括设置在磁记录头中的近场换能器。 多个波导中的每一个具有耦合到近场换能器的第二端。