公开(公告)号：US07310205B2

公开(公告)日：2007-12-18

申请号：US10955691

申请日：2004-09-30

申请人： Yimin Hsu ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Yimin Hsu ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A magnetic head including a media heating device including an optical cavity resonator that produces a high intensity near-field optical beam adjacent to the write pole. Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of the cavity through an aperture that is placed proximate an antinode or post within the cavity. The write pole tip may serve as the post in certain embodiments. The media heating device is preferably fabricated between the first and second magnetic pole layers of a perpendicular magnetic head and close to the ABS surface of the head. An alternative embodiment may include a near field aperture disposed between the resonant cavity and the ABS.

摘要翻译： 一种磁头，包括介质加热装置，该介质加热装置包括产生与写入极相邻的高强度近场光束的光腔谐振器。 光能通过放置在腔附近的波导耦合到谐振腔中，并且光能通过放置在腔内的波腹或柱附近的孔耦合到空腔外。 在某些实施例中，写极尖可以用作柱。 介质加热装置优选地制造在垂直磁头的第一和第二磁极层之间并且靠近头部的ABS表面。 替代实施例可以包括设置在谐振腔和ABS之间的近场孔。

公开(公告)号：US07729085B2

公开(公告)日：2010-06-01

申请号：US11398144

申请日：2006-04-04

申请人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

发明人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

IPC分类号： G11B5/02 ,  G11B5/127 ,  G11B7/00 ,  G11B11/00

CPC分类号： G11B5/314 ,  G11B2005/0021

摘要： The media heating device of the magnetic head includes an optical resonant cavity produces a high intensity near-field optical beam of subwavelength dimension adjacent to the write pole. A suitable resonant cavity may be a spherical cavity, disk shaped cavity, ring shaped cavity, racetrack shaped cavity, micropillar cavity, photonic crystal cavity and Fabry-Perot cavity. The cavity is fabricated as a planar thin film structure in layers that are generally parallel to the magnetic pole thin film layers of the magnetic head, such that the principal axis of the resonant cavity is parallel to the air bearing surface (ABS). Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of the cavity through an aperture that is placed within the cavity. A preferred embodiment may include a nano-aperture disposed between the resonant cavity and the ABS.

摘要翻译： 磁头的介质加热装置包括光学谐振腔，产生与写入极相邻的亚波长尺寸的高强度近场光束。 合适的谐振腔可以是球形腔，盘形腔，环形空腔，跑道形空腔，微腔，光子晶体腔和法布里 - 珀罗腔。 空腔被制造为平面薄膜结构，其平行于磁头的磁极薄膜层，使得谐振腔的主轴平行于空气轴承表面（ABS）。 光能通过放置在腔附近的波导耦合到谐振腔中，并且光能通过放置在空腔内的孔耦合到空腔外。 优选实施例可以包括设置在谐振腔和ABS之间的纳米孔。

公开(公告)号：US07365941B2

公开(公告)日：2008-04-29

申请号：US11042616

申请日：2005-01-24

申请人： Chie Ching Poon ,  Timothy Carl Strand

发明人： Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G11B11/22

CPC分类号： G11B7/1387 ,  G11B7/00458 ,  G11B7/124

摘要： An optical recording head including a media heating device to write and read data to a heat sensitive optical media disk. The media heating device includes an optical energy resonant cavity that produces a high intensity near-field optical spot of subwavelength dimension. Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of the cavity through an aperture that is placed proximate an antinode or post within the cavity. In reading data from the optical media, a photodetector is placed at the end of the waveguide. Optical energy emitted from the end of the waveguide is influenced by the reflectivity of the media data bit, and is interpreted as the data bit signal.

摘要翻译： 一种光学记录头，包括用于向热敏光学介质盘写入和读取数据的介质加热装置。 介质加热装置包括产生亚波长尺寸的高强度近场光点的光能谐振腔。 光能通过放置在腔附近的波导耦合到谐振腔中，并且光能通过放置在腔内的波腹或柱附近的孔耦合到空腔外。 在从光学介质读取数据时，将光电检测器放置在波导的末端。 从波导末端发射的光能受媒体数据位的反射率影响，被解释为数据位信号。

公开(公告)号：US07759630B2

公开(公告)日：2010-07-20

申请号：US11645827

申请日：2006-12-26

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： H01J3/14 ,  H01J5/16

CPC分类号： G01Q60/22 ,  G01J3/10 ,  G11B7/1387 ,  Y10S977/892

摘要： Methods and devices for generating multiple, closely spaced, independently controlled near-field light sources are disclosed. By providing an aperture having at least two, orthogonally oriented ridge structures, two or more closely spaced near-field light sources can be generated by controlling the polarization direction of the illuminating radiation. Control of the shape of the aperture, and relative dimensions of the ridge structures allows optimization of the relative intensities of the near-field sources.

摘要翻译： 公开了用于产生多个，紧密间隔的独立控制的近场光源的方法和装置。 通过提供具有至少两个正交定向的脊结构的孔，可以通过控制照明辐射的偏振方向来产生两个或更多个紧密间隔的近场光源。 孔的形状的控制和脊结构的相对尺寸允许优化近场源的相对强度。

公开(公告)号：US07649677B2

公开(公告)日：2010-01-19

申请号：US11398170

申请日：2006-04-04

申请人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

发明人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

IPC分类号： G02F2/00 ,  G11B19/02 ,  G02B6/10 ,  G02B6/12

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A subwavelength aperture includes a plurality of ridges that project from an aperture sidewall into the aperture opening. The ridges may be closely spaced such that the hot spots associated with the ridges are likewise closely spaced and create an elongated hot spot. The subwavelength aperture of the present invention may be adapted for use in a magnetic head of a hard disk drive for improved thermally assisted recording (TAR) of magnetic data bits. Such a magnetic head may include an optical resonant cavity that is fabricated within the magnetic head structure.

摘要翻译： 亚波长孔径包括从孔侧壁突出到孔口中的多个脊。 脊可以紧密地间隔开，使得与脊相关联的热点同样紧密地间隔开并产生细长的热点。 本发明的亚波长孔径可以适用于硬盘驱动器的磁头，用于改善磁数据位的热辅助记录（TAR）。 这样的磁头可以包括在磁头结构内制造的光学谐振腔。

公开(公告)号：US20080149809A1

公开(公告)日：2008-06-26

申请号：US11645827

申请日：2006-12-26

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G01J1/20

CPC分类号： G01Q60/22 ,  G01J3/10 ,  G11B7/1387 ,  Y10S977/892

摘要： Methods and devices for generating multiple, closely spaced, independently controlled near-field light sources are disclosed. By providing an aperture having at least two, orthogonally oriented ridge structures, two or more closely spaced near-field light sources can be generated by controlling the polarization direction of the illuminating radiation. Control of the shape of the aperture, and relative dimensions of the ridge structures allows optimization of the relative intensities of the near-field sources.

摘要翻译： 公开了用于产生多个，紧密间隔的独立控制的近场光源的方法和装置。 通过提供具有至少两个正交定向的脊结构的孔，可以通过控制照明辐射的偏振方向来产生两个或更多个紧密间隔的近场光源。 孔的形状的控制和脊结构的相对尺寸允许优化近场源的相对强度。

公开(公告)号：US07345853B2

公开(公告)日：2008-03-18

申请号：US11745787

申请日：2007-05-08

申请人： Meng Ding ,  Surya Narayan Pattanaik ,  Chie Ching Poon ,  Neil Leslie Robertson

发明人： Meng Ding ,  Surya Narayan Pattanaik ,  Chie Ching Poon ,  Neil Leslie Robertson

IPC分类号： G11B5/39

CPC分类号： G11B5/11 ,  B23K1/0056 ,  B23K1/018 ,  B23K26/0622 ,  B23K26/354 ,  B23K2101/42 ,  G11B5/3906 ,  G11B5/40

摘要： A device according to one embodiment includes an electronic component such as an MR sensor, a pair of leads operatively coupled to the electronic component, and shorting material between the leads, the shorting material having been applied by a laser deposition process, the shorting material having been severed. A magnetic storage system according to another embodiment includes magnetic media; and at least one head for reading from and writing to the magnetic media, each head having: a sensor; and a writer coupled to the sensor. The system also includes a pair of pads or leads operatively coupled to the head; shorting material between the leads, the shorting material having been applied by a laser deposition process, the shorting material having been severed; a slider for supporting the head; and a control unit coupled to the head for controlling operation of the head.

摘要翻译： 根据一个实施例的装置包括诸如MR传感器的电子部件，可操作地耦合到电子部件的一对引线以及引线之间的短路材料，通过激光沉积工艺施加了短路材料，所述短路材料具有 被切断 根据另一实施例的磁存储系统包括磁介质; 以及用于从磁介质读取和写入至少一个头部，每个头部具有：传感器; 以及耦合到传感器的写入器。 该系统还包括可操作地耦合到头部的一对垫或引线; 在引线之间短路材料，通过激光沉积工艺施加的短路材料，短路材料已被切断; 用于支撑头部的滑块; 以及耦合到头部用于控制头部的操作的控制单元。

公开(公告)号：US6075604A

公开(公告)日：2000-06-13

申请号：US189311

申请日：1998-11-10

申请人： Linden James Crawforth ,  Chie Ching Poon ,  Andrew Ching Tam

发明人： Linden James Crawforth ,  Chie Ching Poon ,  Andrew Ching Tam

IPC分类号： G01B11/255 ,  G01B11/24

CPC分类号： G01B11/255

摘要： An apparatus for measuring a curvature of an air bearing surface (ABS) of a read/write magnetic head slider. The apparatus has two lasers which direct laser beams toward the ABS. The beams strike the ABS and are specularly reflected. The reflected beams are directed toward a position sensing optical detector. The distance between the points where the beams strike the detector is indicative of the curvature of the ABS. The beams my be alternately pulsed so that the detector outputs a DC-biased square wave signal, the voltage-step difference of which indicates the curvature. In another embodiment, a single laser beam is scanned by a scanner and passed through a scan lens. The scan lens is located one focal length from the scanner. A reflected laser beam is reflected from the ABS and is collected by the scan lens. The reflected laser beam is then directed toward a position sensing optical detector. The detector is located outside the focal plane of the scan lens. The position of the laser beam on the detector is dependent upon the curvature of the ABS. Then the magnitude of the detector output provides a measure of the curvature.

摘要翻译： 一种用于测量读/写磁头滑块的空气轴承表面（ABS）的曲率的装置。 该装置具有将激光束引向ABS的两个激光器。 光束撞击ABS并被镜面反射。 反射光束被指向位置感测光学检测器。 光束撞击检测器的点之间的距离表示ABS的曲率。 光束交替脉冲，使得检测器输出一个直流偏置方波信号，其电压阶差表示曲率。 在另一个实施例中，单个激光束被扫描仪扫描并通过扫描透镜。 扫描镜头位于扫描仪的一个焦距处。 反射的激光束从ABS反射并被扫描透镜收集。 然后将反射的激光束导向位置感测光学检测器。 检测器位于扫描透镜的焦平面外。 激光束在检测器上的位置取决于ABS的曲率。 然后检测器输出的幅度提供曲率的量度。

公开(公告)号：US06049056A

公开(公告)日：2000-04-11

申请号：US4693

申请日：1998-01-08

申请人： Hamid Balamane ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Andrew Ching Tam

发明人： Hamid Balamane ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Andrew Ching Tam

IPC分类号： B23K26/40 ,  B23K26/08

CPC分类号： B23K26/40 ,  B23K26/362 ,  B23K2203/26 ,  B23K2203/50 ,  Y10T29/49032

摘要： A thin film conductive line is formed between MR pads on an MR head for protecting an MR sensor from electrostatic discharge (ESD) during assembly steps between row level fabrication of the head and prior to merge of a head stack assembly with a disk stack assembly. The conductive line may have a reduced thickness delete pad. A laser beam having a fluence sufficient to sever the conductive line at the delete pad but insufficient to damage or cause debris from structure underlying or surrounding the conductive line is used to sever the conductive line. The method traverses minimum energy, short laser pulses at a high pulse rate across the line, the melted material withdrawing from the melted area and being heaped on top of adjacent portions of the delete pad by surface tension and the melted material cooling to room temperature before the next pulse so that there is no cumulative heating and therefore no damage to or debris from the underlying structure. The conductive material of the line is incrementally plowed to each side of a severed path by successive overlapping laser pulses so that when the series of laser pulses has traversed the width of the delete pad the conductive line has been severed.

摘要翻译： 在MR头上的MR焊盘之间形成薄膜导电线，用于在磁头堆叠组件与磁盘堆叠组件合并之前的组装步骤期间保护MR传感器免受静电放电（ESD）的影响。 导线可以具有减小的厚度删除焊盘。 激光束具有足够的能量来切断在删除焊盘处的导线，但是不足以损坏或者导致来自导电线下面或周围的结构的碎屑被切断导线。 该方法穿过线路以高脉冲速度穿过最小能量，短激光脉冲，熔化的材料从熔化区域退出，并通过表面张力堆积在删除焊盘的相邻部分的顶部，并将熔融的材料冷却至室温 下一个脉冲，使得没有累积加热，因此没有来自底层结构的损坏或碎屑。 线的导电材料通过连续重叠的激光脉冲逐渐地被切割到切断路径的每一侧，使得当一系列激光脉冲已经穿过删除焊盘的宽度时，导线已被切断。

公开(公告)号：US5963569A

公开(公告)日：1999-10-05

申请号：US825305

申请日：1997-03-28

申请人： Peter Michael Baumgart ,  James Hammond Brannon ,  Chie Ching Poon ,  Andrew Ching Tam

发明人： Peter Michael Baumgart ,  James Hammond Brannon ,  Chie Ching Poon ,  Andrew Ching Tam

IPC分类号： G11B7/085 ,  G02F1/11 ,  G11B7/135 ,  G02F1/33 ,  H01S3/10

CPC分类号： G02F1/113 ,  G02F1/332

摘要： A multichannel acousto-optic modulator (MCAOM) is described which uses a crystal with a plurality of mounting faces for acoustic transducers. The mounting faces are oriented so that the acoustic transducers mounted thereon generate acoustic fields which intersect the incident laser beam at a common angle, i.e., the Bragg angle. A two channel MCAOM uses two transducers. Extension to any higher number of channels follows accordingly. Energizing any of the transducers causes a corresponding first order beam to be diffracted out. Since the acoustic field for each transducer intersects the incident beam with a unique orientation, each first order beam is diffracted out on a unique axis. A system utilizing an MCAOM has electronic means for controlling the driving signals to the transducers to control each channel as required by the application. Amplitude and frequency modulation of the driving signals allows the intensity and angle of the beams to be controlled.

摘要翻译： 描述了使用具有用于声学换能器的多个安装面的晶体的多声道声光调制器（MCAOM）。 安装面被定向成使得安装在其上的声学换能器产生以入射激光束以相同的角度即布拉格角相交的声场。 双通道MCAOM使用两个换能器。 扩展到任何更多数量的频道都是相应的。 激励任何一个换能器使相应的一阶光束被衍射。 由于每个传感器的声场以独特的取向与入射光束相交，所以每一个第一阶光束在独特的轴上被衍射。 使用MCAOM的系统具有用于控制到换能器的驱动信号的电子装置，以根据应用的要求来控制每个通道。 驱动信号的幅度和频率调制允许控制光束的强度和角度。