公开(公告)号：US20070080148A1

公开(公告)日：2007-04-12

申请号：US11246038

申请日：2005-10-07

申请人： Toshiki Hirano ,  Chie Poon ,  Gurinder Singh ,  Timothy Strand

发明人： Toshiki Hirano ,  Chie Poon ,  Gurinder Singh ,  Timothy Strand

IPC分类号： B23K26/00 ,  B21D37/16

CPC分类号： G11B5/4833 ,  B23K26/0006 ,  B23K26/0622 ,  B23K26/354 ,  B23K2103/50 ,  G11B5/581 ,  G11B5/6017

摘要： An apparatus for producing a heat affected zone in at least one thin surface layer of metal of a component suitable for use in an HDD comprises: a radiation device for generating a first beam of pulsed laser radiation; an optical device for transmitting the first beam of pulsed laser radiation to the metal on the surface of the component; a first control system for determining the amount of the pulsed laser radiation required to produce a controlled heat affected zone in at least one thin surface layer of metal of the component; and a second control system for determining the location of the pulsed laser radiation on the surface of the component. The embodied apparatus does not require CW laser radiation in conjunction with the pulsed laser radiation to cause bi-directional angular deflection of a free end of the component. The first control system of the apparatus has a determiner configured to determine exposure variables of the first beam of pulsed laser radiation required to cause the component to become concave towards the laser irradiated side. The determiner is also configured to determine exposure variables of a second beam of pulsed laser radiation required to cause the component to become concave towards the laser irradiated side.

摘要翻译： 一种用于在至少一个适用于HDD的部件的金属薄表面层中产生热影响区的装置，包括：辐射装置，用于产生第一束脉冲激光辐射; 用于将第一束脉冲激光辐射传输到部件表面上的金属的光学装置; 第一控制系统，用于确定在组件的金属的至少一个薄表面层中产生受控热影响区域所需的脉冲激光辐射的量; 以及用于确定脉冲激光辐射在部件表面上的位置的第二控制系统。 所体现的装置不需要与脉冲激光辐射结合的CW激光辐射来引起部件的自由端的双向角度偏转。 该装置的第一控制系统具有确定器，其被配置为确定使得该部件朝向激光照射侧成为凹陷所需的脉冲激光辐射的第一束的曝光变量。 确定器还被配置为确定使得部件朝向激光照射侧成为凹陷所需的脉冲激光辐射的第二束的曝光变量。

公开(公告)号：US20070230047A1

公开(公告)日：2007-10-04

申请号：US11398144

申请日：2006-04-04

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

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

IPC分类号： G11B5/147

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：US20110149299A1

公开(公告)日：2011-06-23

申请号：US12645205

申请日：2009-12-22

申请人： Karl Flechsig ,  Gurinder Singh ,  Timothy Strand

发明人： Karl Flechsig ,  Gurinder Singh ,  Timothy Strand

IPC分类号： G01B11/30

CPC分类号： G01B11/30 ,  G01B11/303

摘要： A device for detecting disk asperities. The device includes an optical glide head. The glide head is not required to physically contact a disk for detection of the disk asperities. The optical glide head includes a waveguide configured to transmit light onto the disk and receive reflected light from the disk.

摘要翻译： 用于检测磁盘粗糙度的设备。 该装置包括光滑头。 滑动头不需要物理接触磁盘来检测磁盘粗糙度。 光滑头包括配置成将光透射到盘上并接收来自盘的反射光的波导。

公开(公告)号：US08576407B2

公开(公告)日：2013-11-05

申请号：US12645205

申请日：2009-12-22

申请人： Karl Flechsig ,  Gurinder Singh ,  Timothy Strand

发明人： Karl Flechsig ,  Gurinder Singh ,  Timothy Strand

IPC分类号： G01B11/02

CPC分类号： G01B11/30 ,  G01B11/303

摘要： A device for detecting disk asperities. The device includes an optical glide head. The glide head is not required to physically contact a disk for detection of the disk asperities. The optical glide head includes a waveguide configured to transmit light onto the disk and receive reflected light from the disk.

摘要翻译： 用于检测磁盘粗糙度的设备。 该装置包括光滑头。 滑动头不需要物理接触磁盘来检测磁盘粗糙度。 光滑头包括配置成将光透射到盘上并接收来自盘的反射光的波导。

公开(公告)号：US20060164960A1

公开(公告)日：2006-07-27

申请号：US11042616

申请日：2005-01-24

申请人： Chie Poon ,  Timothy Strand

发明人： Chie Poon ,  Timothy Strand

IPC分类号： G11B5/09

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：US20070230010A1

公开(公告)日：2007-10-04

申请号：US11398170

申请日：2006-04-04

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

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

IPC分类号： G11B19/02 ,  G11B5/147

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：US20060067001A1

公开(公告)日：2006-03-30

申请号：US10955691

申请日：2004-09-30

申请人： Yimin Hsu ,  Chie Poon ,  Timothy Strand

发明人： Yimin Hsu ,  Chie Poon ,  Timothy Strand

IPC分类号： G11B5/60

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：US20050068666A1

公开(公告)日：2005-03-31

申请号：US10673593

申请日：2003-09-29

申请人： David Albrecht ,  Barry Stipe ,  Timothy Strand

发明人： David Albrecht ,  Barry Stipe ,  Timothy Strand

IPC分类号： G11B33/14

CPC分类号： G11B33/1466 ,  H01B17/305

摘要： A hermetic sealing approach involves welding an Aluminum cover onto a low-cost Aluminum housing. According to an example embodiment of the present invention, a metal housing having a base and sidewalls extending upward therefrom is adapted to receive and couple to an HDD arrangement. The metal housing is formed using material and processing (e.g., cold formed or die cast Aluminum) that are relatively inexpensive. A feedthrough arrangement including a plurality of communication pins extends through an opening in the base and is coupled thereto, with the communication pins adapted to pass signals between the inside and the outside of the metal housing. A metal cover is welded to an upper portion of the sidewalls and, with the feedthrough arrangement, hermetically seals the metal housing.

摘要翻译： 密封方法包括将铝盖焊接在低成本的铝外壳上。 根据本发明的示例性实施例，具有从其向上延伸的基部和侧壁的金属壳体适于接收并耦合到HDD装置。 使用相对便宜的材料和加工（例如，冷成型或压铸铝）来形成金属外壳。 包括多个通信引脚的馈通装置延伸穿过基座中的开口并与其耦合，其中通信引脚适于在金属外壳的内部和外部之间传递信号。 金属盖焊接到侧壁的上部，并且通过馈通装置气密地密封金属壳体。

公开(公告)号：US20060249368A1

公开(公告)日：2006-11-09

申请号：US11120820

申请日：2005-05-03

申请人： Timothy Reiley ,  Timothy Strand

发明人： Timothy Reiley ,  Timothy Strand

IPC分类号： B23K26/00 ,  C23C14/32

CPC分类号： H01L21/28518 ,  B23K26/0006 ,  B23K2101/34 ,  B23K2101/40 ,  B23K2103/16 ,  B23K2103/42 ,  B23K2103/50 ,  C23C14/5813

摘要： An ohmic contact for a silicon slider body is disclosed. A scanned laser beam locally heats a metal film on the slider body to interdiffuse the metal and silicon while minimizing the total thermal load on the slider body. This localized heating avoids thermal damage to the sensitive magnetic head region on the slider. The native oxide layer on the slider is removed by a sputter etch, followed by deposition of a diffusion layer. A capping layer is then deposited to reduce oxidation during subsequent processing. The metal layer is then locally annealed by scanning the laser beam over the target area. Contact resistance of less than 100 ohms is achieved while minimizing the thermal load on the slider body.

摘要翻译： 公开了一种用于硅滑块体的欧姆接触。 扫描的激光束局部加热滑块体上的金属膜以相互扩散金属和硅，同时最小化滑块体上的总热负荷。 这种局部加热避免了滑块上敏感磁头区域的热损伤。 通过溅射蚀刻去除滑块上的自然氧化物层，然后沉积扩散层。 然后沉积覆盖层以在随后的处理期间减少氧化。 然后通过在目标区域上扫描激光束来对金属层进行局部退火。 实现小于100欧姆的接触电阻，同时最小化滑块体上的热负载。

公开(公告)号：US06359799B2

公开(公告)日：2002-03-19

申请号：US09821619

申请日：2001-03-29

申请人： Timothy Strand ,  Matthew John Littlefair

发明人： Timothy Strand ,  Matthew John Littlefair

IPC分类号： H02M712

CPC分类号： H02M1/4216 ,  H02M2001/0077 ,  Y02B70/126

摘要： A power supply suitable for use with discharge lamps includes at least one power factor corrector module for connection to a three phase input supply. Each module includes three single phase circuits for connection between a respective pair of phases, each circuit comprising a converter. The output of the three single phase circuits are connected in series. The module further includes control for varying the duty cycle of the converters using a respective reference signal synchronized with the input voltage to the corresponding converter, and inversely proportionally to a measured instantaneous input voltage to the corresponding converter. Each reference signal is sinusoidal and the control varies the duty cycle of each of the converters proportionally to the square of the respective sinusoidal reference signal. The current drawn by each converter is sinusoidal, even if the mains contains distortions.

摘要翻译： 适用于放电灯的电源包括用于连接到三相输入电源的至少一个功率因数校正器模块。 每个模块包括用于在相对的一对相之间连接的三个单相电路，每个电路包括转换器。 三个单相电路的输出串联连接。 该模块还包括用于使用与输入电压同步到相应转换器的相应参考信号来改变转换器的占空比的控制，并且与到相应的转换器的测量的瞬时输入电压成反比。 每个参考信号是正弦的，并且控制器使每个转换器的占空比根据相应的正弦参考信号的平方成比例地变化。 每个转换器绘制的电流是正弦波，即使电源包含失真。