公开(公告)号：US08553506B2

公开(公告)日：2013-10-08

申请号：US13340147

申请日：2011-12-29

申请人： John Contreras ,  Lidu Huang ,  Erhard Schreck ,  Barry C. Stipe

发明人： John Contreras ,  Lidu Huang ,  Erhard Schreck ,  Barry C. Stipe

IPC分类号： G11B11/00

CPC分类号： G11B5/3133 ,  G11B5/314 ,  G11B5/607 ,  G11B2005/0021

摘要： An apparatus according to one embodiment includes a near-field transducer positioned towards an air bearing surface side of the apparatus; and at least one conductor or circuit for causing heating of the near-field transducer. A method according to one embodiment includes heating the near-field transducer by passing a current through the at least one conductor or circuit; and illuminating the near-field transducer during a write operation, wherein the current does not pass through the at least one conductor or circuit for at least a majority of a time of illumination. Additional embodiments are also presented.

摘要翻译： 根据一个实施例的装置包括朝向装置的空气轴承表面侧定位的近场换能器; 以及用于引起近场换能器加热的至少一个导体或电路。 根据一个实施例的方法包括通过使电流通过至少一个导体或电路来加热近场换能器; 以及在写入操作期间照亮所述近场换能器，其中所述电流在所述照明时间的至少大部分时间内不通过所述至少一个导体或电路。 还提供了另外的实施例。

公开(公告)号：US08509039B1

公开(公告)日：2013-08-13

申请号：US13535499

申请日：2012-06-28

申请人： Lidu Huang ,  Andrew Thomas McCallum ,  Simone Pisana

发明人： Lidu Huang ,  Andrew Thomas McCallum ,  Simone Pisana

IPC分类号： G11B7/085 ,  G11B11/00

CPC分类号： G11B5/65 ,  G11B5/7325 ,  G11B5/746 ,  G11B2005/0021

摘要： A thermally-assisted recording (TAR) disk has an improved insulating layer beneath the chemically-ordered FePt (or CoPt) alloy recording layer. The insulating layer is a solid substitution crystalline alloy MgXO, where the element X is selected from nickel (Ni) and cobalt (Co). The composition of the MgXO crystalline solid substitutional alloy is of the form (Mg(100-y)Xy)O where y is between 10 and 90, and more preferably between 20 and 80. An optional layer of crystalline “pure” MgO may be located between the MgXO layer and the FePt recording layer and in contact with the recording layer, or between an underlayer and the MgXO layer.

摘要翻译： 热辅助记录（TAR）盘在化学有序的FePt（或CoPt）合金记录层下面具有改进的绝缘层。 绝缘层是固体取代结晶合金MgXO，元素X选自镍（Ni）和钴（Co）。 MgXO结晶固体取代合金的组成为（Mg（100-y）Xy）O形式，其中y在10和90之间，更优选在20和80之间。任选的结晶“纯”MgO层可以是 位于MgXO层和FePt记录层之间并与记录层接触，或位于底层与MgXO层之间。

公开(公告)号：US08203806B2

公开(公告)日：2012-06-19

申请号：US12135454

申请日：2008-06-09

申请人： Nils E. Larson ,  John R. Edwards ,  David K. Myers ,  Lidu Huang ,  Scott E. Watson

发明人： Nils E. Larson ,  John R. Edwards ,  David K. Myers ,  Lidu Huang ,  Scott E. Watson

IPC分类号： G11B21/22 ,  G11B21/24

CPC分类号： G11B5/54

摘要： A disk drive includes a ramp having a fixed portion that is fixed to the disk drive base, and a guide portion that is not. The guide portion includes a guide surface having a parking region that is in contact with an HGA lift-tab with the disk drive in a non-operational state. The guide surface also has a load/unload region that extends over a disk outer periphery. The guide surface defines a guide surface length that is measured from the parking region to the load/unload region. The ramp also includes a torsionally-compliant member connecting the fixed portion to the guide portion. A distance between the torsionally-compliant member and the parking region, measured approximately parallel to the guide surface length, is less than half the guide surface length. The guide portion is not connected to the fixed portion over at least two-thirds of the guide surface length.

摘要翻译： 磁盘驱动器包括具有固定到盘驱动器底座的固定部分的斜面和不是的导向部分。 引导部分包括具有与盘驱动器处于非操作状态的HGA升降片接触的停车区域的引导表面。 引导表面还具有在盘外周上延伸的加载/卸载区域。 引导表面限定从停车区域到加载/卸载区域测量的引导表面长度。 斜坡还包括将固定部分连接到引导部分的扭转顺应构件。 扭转顺应构件与驻车区域之间的距离大约平行于导向面长度测量的距离小于导向面长度的一半。 引导部分不超过引导表面长度的至少三分之二连接到固定部分。

公开(公告)号：US08129043B2

公开(公告)日：2012-03-06

申请号：US12423258

申请日：2009-04-14

申请人： Thomas Hauet ,  Olav Hellwig ,  Lidu Huang

发明人： Thomas Hauet ,  Olav Hellwig ,  Lidu Huang

IPC分类号： G11B5/66

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/02 ,  G11B5/743 ,  G11B5/746 ,  G11B5/855 ,  G11B2005/0002

摘要： Multilayer magnetic structures control the switching field and tighten the switching field distribution in bit patterned media. A strain-inducing layer is excited, e.g., by a localized magnetic field or a localized thermal heating or a voltage, and induces a strain on the magnetic layer(s) of the patterned bit to initiate switching of the bit magnetization. The strain induced on the magnetic layer forces a rotation or an amplitude variation of the magnetic layer anisotropy. A localized magnetic field is simultaneously or subsequently applied to complete the switching of the bit magnetization. The invention provides control of switching field and switching field distribution for bit-patterned media devices.

摘要翻译： 多层磁性结构控制开关场，并拧紧位图形介质中的开关场分布。 应变诱发层例如通过局部磁场或局部热加热或电压而被激发，并且在图案化位的磁性层上引起应变以启动位磁化的切换。 在磁性层上诱发的应变促使磁性层各向异性的旋转或振幅变化。 同时或随后施加局部磁场以完成位磁化的切换。 本发明提供了针对位图形媒体设备的开关场和开关场分布的控制。

公开(公告)号：US20100259846A1

公开(公告)日：2010-10-14

申请号：US12423258

申请日：2009-04-14

申请人： Thomas Hauet ,  Olav Hellwig ,  Lidu Huang

发明人： Thomas Hauet ,  Olav Hellwig ,  Lidu Huang

IPC分类号： G11B5/02

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/02 ,  G11B5/743 ,  G11B5/746 ,  G11B5/855 ,  G11B2005/0002

摘要： Multilayer magnetic structures control the switching field and tighten the switching field distribution in bit patterned media. A strain-inducing layer is excited, e.g., by a localized magnetic field or a localized thermal heating or a voltage, and induces a strain on the magnetic layer(s) of the patterned bit to initiate switching of the bit magnetization. The strain induced on the magnetic layer forces a rotation or an amplitude variation of the magnetic layer anisotropy. A localized magnetic field is simultaneously or subsequently applied to complete the switching of the bit magnetization. The invention provides control of switching field and switching field distribution for bit-patterned media devices.

摘要翻译： 多层磁性结构控制开关场，并拧紧位图案介质中的开关场分布。 应变诱发层例如通过局部磁场或局部热加热或电压而被激发，并且在图案化位的磁性层上引起应变以启动位磁化的切换。 在磁性层上诱发的应变促使磁性层各向异性的旋转或振幅变化。 同时或随后施加局部磁场以完成位磁化的切换。 本发明提供了针对位图形媒体设备的开关场和开关场分布的控制。

公开(公告)号：US07690705B1

公开(公告)日：2010-04-06

申请号：US11644404

申请日：2006-12-21

申请人： Lawrence Matthew Roberts ,  Joselito S. Jose ,  Lidu Huang

发明人： Lawrence Matthew Roberts ,  Joselito S. Jose ,  Lidu Huang

IPC分类号： B25J15/06

CPC分类号： G11B25/043 ,  Y10S294/902

摘要： A vacuum chuck includes a first surface with a cavity formed in the first surface, a second surface opposite the first surface, and a relatively deformable portion disposed between the first surface and the second surface. The vacuum chuck is formed using a resilient material, and the relatively deformable portion changes shape in response to pressure more easily than other portions of the vacuum chuck.

摘要翻译： 真空吸盘包括具有形成在第一表面中的空腔的第一表面，与第一表面相对的第二表面，以及设置在第一表面和第二表面之间的相对可变形部分。 使用弹性材料形成真空卡盘，相对于真空卡盘的其他部分，相对可变形部分响应于压力而变化的形状更容易。

公开(公告)号：US07684155B1

公开(公告)日：2010-03-23

申请号：US11650276

申请日：2007-01-05

申请人： Lidu Huang ,  Peter G. Robinson ,  Scott E. Watson

发明人： Lidu Huang ,  Peter G. Robinson ,  Scott E. Watson

IPC分类号： G11B21/22

CPC分类号： G11B21/22

摘要： A disk drive comprises a disk drive base, an actuator rotatably coupled to the disk drive base, a magnet disposed adjacent the actuator, and a latch. The latch is coupled to the disk drive base. The latch includes a latch body, a retention bore, a seating cavity, and a biasing ball. The retention bore extends into the latch body along a bore longitudinal axis. The retention bore includes a ball entrance defining a ball entrance diameter. The seating cavity extends from within the retention bore into the latch body. The seating cavity has an interior dimension perpendicular to the bore longitudinal axis greater than the ball entrance diameter. The biasing ball is disposed at least partially in the retention bore and at least partially within the seating cavity. The biasing ball comprises a magnetic material and has a ball diameter greater than the ball entrance diameter.

摘要翻译： 磁盘驱动器包括盘驱动器基座，可旋转地联接到盘驱动器底座的致动器，与致动器相邻设置的磁体和闩锁。 闩锁耦合到磁盘驱动器底座。 闩锁包括闩锁体，保持孔，就座腔和偏置球。 保持孔沿着孔纵向轴线延伸到闩锁体内。 保持孔包括限定球入口直径的球入口。 座腔从保持孔内延伸到闩锁体内。 座腔具有垂直于孔纵向轴线的大于球入口直径的内部尺寸。 偏压球至少部分地设置在保持孔中并且至少部分地设置在座腔内。 偏置球包括磁性材料并且具有大于球入口直径的球直径。

公开(公告)号：US07672083B1

公开(公告)日：2010-03-02

申请号：US11352534

申请日：2006-02-13

申请人： William Wei Yi Yu ,  Lidu Huang ,  Perry E. Hall ,  Scott E. Watson ,  Kenneth Allen ,  Lawrence H. Lo ,  David K. Myers

发明人： William Wei Yi Yu ,  Lidu Huang ,  Perry E. Hall ,  Scott E. Watson ,  Kenneth Allen ,  Lawrence H. Lo ,  David K. Myers

IPC分类号： G11B5/54

CPC分类号： G11B21/22 ,  G11B5/54

摘要： A disk drive having a translatable ramp is disclosed. The disk drive includes a head gimbal assembly having a proximate end that is attached to an actuator, and a distal end that includes a lift tab. The ramp includes a lift tab supporting surface located as close to a pivot axis of the actuator as is the lift tab. The ramp also includes a ramp guiding surface that is in contact with a mating surface of the disk drive base. A fastener selectively allows or prevents relative translation between the ramp and the disk drive base. The aforementioned contact constrains the relative translation so that the relative translation changes the distance between the lift tab supporting surface and the disk axis of rotation more than the relative translation changes the distance between the lift tab supporting surface and the actuator pivot axis.

摘要翻译： 公开了具有可平移斜坡的盘驱动器。 磁盘驱动器包括具有附接到致动器的近端的头万向架组件和包括升降片的远端。 坡道包括提升翼片支撑表面，其位于致动器的枢转轴线附近，如提升翼片。 斜坡还包括与盘驱动器底座的配合表面接触的坡道引导表面。 紧固件选择性地允许或防止斜坡和盘驱动器底座之间的相对平移。 上述接触限制相对平移，使得相对平移改变提升翼片支撑表面和盘旋转轴线之间的距离大于相对平移改变提升翼片支撑表面和致动器枢转轴线之间的距离。

公开(公告)号：US07283220B2

公开(公告)日：2007-10-16

申请号：US10808665

申请日：2004-03-24

申请人： Lidu Huang ,  Alexei Glebov ,  Shigenori Aoki ,  Michael G. Lee ,  Kishio Yokouchi

发明人： Lidu Huang ,  Alexei Glebov ,  Shigenori Aoki ,  Michael G. Lee ,  Kishio Yokouchi

IPC分类号： G01N21/41

CPC分类号： G01N21/4133

摘要： Methods and apparatuses for measuring the optical properties of solids, gels, and liquids are disclosed. The apparatuses may be constructed on miniature substrates using conventional semiconductor wafer and packaging processes. The substrates may be mass-produced on wafers, which are then diced to provide individual miniature substrates. High measurement precision, low-manufacturing costs, and other benefits are provided by the present inventions.

摘要翻译： 公开了用于测量固体，凝胶和液体的光学性质的方法和装置。 可以使用传统的半导体晶片和封装工艺在微型基板上构造装置。 衬底可以在晶片上批量生产，然后将其切割以提供单独的微型衬底。 本发明提供了高测量精度，低制造成本和其它益处。

公开(公告)号：US06642711B2

公开(公告)日：2003-11-04

申请号：US10043406

申请日：2002-01-10

申请人： Keith W. Kawate ,  Gerhard A. Foelsche ,  Lidu Huang ,  Gerald H. Fleischfresser

发明人： Keith W. Kawate ,  Gerhard A. Foelsche ,  Lidu Huang ,  Gerald H. Fleischfresser

IPC分类号： G01B700

CPC分类号： G01D5/2291 ,  G01B7/003 ,  G01D5/2053 ,  G01D5/2225

摘要： A differential pulse transformer having a drive coil (10a) and differential sense coils (10b) are disposed on a planar surface with a target (10e, 10f) movable over the sense coils to cause an imbalance in magnetic field when a large di/dt pulse is generated in the drive coil. A detection circuit senses the imbalance and provides a digital output accurately identifying the position of the target. Coil and target embodiments include relatively small secondary coils and relatively long targets (10b, 10e/10f; 12b, 12e/12f and 14b) and relatively large secondary coils and short targets (16b, 16c; 18b, 18c; 20b and 22b).

摘要翻译： 具有驱动线圈（10a）和差分感测线圈（10b）的差分脉冲变压器设置在平面上，其中可以在感测线圈上移动的目标（10e，10f）在大的di / dt 在驱动线圈中产生脉冲。 检测电路感测到不平衡，并提供准确识别目标位置的数字输出。 线圈和目标实施例包括相对较小的次级线圈和相对长的目标（10b，10e / 10f; 12b，12e / 12f和14b）和相对较大的次级线圈和短目标（16b，16c; 18b，18c; 20b和22b）。