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11. 发明授权

US5699160A Optical apparatus for inspecting laser texture 失效
标题翻译：用于检查激光纹理的光学装置
公开(公告)号：US5699160A
公开(公告)日：1997-12-16
申请号：US710806
申请日：1996-09-23
申请人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Michael Gerard Lisanke , Hong S. Seing , Huizong Lu , Lanphuong Thi Pena , Ali Reza Taheri , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Michael Gerard Lisanke , Hong S. Seing , Huizong Lu , Lanphuong Thi Pena , Ali Reza Taheri , Andrew Ching Tam
IPC分类号： G01B9/02 , G01B11/22 , G11B5/84
CPC分类号： G01B9/02019 , G01B11/22 , G01B9/02057 , G11B5/8404 , G01B2290/45 , G01B2290/70
摘要： Inspection apparatus for determining the profile of textured spots extending in a pattern along a surface of a magnetic disk includes an interferometer which illuminates first and second, adjacently disposed test spots on the surface. The disk and the interferometer are moved, relative to one another, so that one of the test spots traverses the textured spots in the pattern while the other test spot is moved along a flat portion of the disk surface. In one embodiment, the inspection apparatus is built into the device forming the textured spots, providing feedback controlling the texturing process.
摘要翻译：用于确定沿着磁盘表面沿图案延伸的纹理斑点的轮廓的检查装置包括：照射第一和第二相邻设置在表面上的测试点的干涉仪。盘和干涉仪相对于彼此移动，使得一个测试点在图案中穿过纹理斑点，而另一个测试点沿着盘表面的平坦部分移动。在一个实施例中，检查装置内置在形成纹理斑点的装置中，提供控制纹理化工艺的反馈。

12. 发明授权

US5940304A Controlling a laser texturing tool having two handling stations for disks to be textured and a single texturing station 失效
标题翻译：控制激光纹理工具，其具有两个用于待纹理的盘的处理站和单个纹理站
公开(公告)号：US5940304A
公开(公告)日：1999-08-17
申请号：US707384
申请日：1996-09-04
申请人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benjamin Karni , Pieter J. M. Kerstens , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benjamin Karni , Pieter J. M. Kerstens , Hong S. Seing , Andrew Ching Tam
IPC分类号： G11B5/84 , G11B23/00 , G06F17/00 , G06G7/48
CPC分类号： G11B23/0021 , G11B5/8404
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. Control of the tool is achieved using a right-side disk handling and processing controller, a right-side cassette handling controller, a left-side disk handling and processing controller, and a left side cassette handling controller. The two disk handling and processing controllers share hardware resources performing the texturing process.
摘要翻译：例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。使用右侧盘处理和处理控制器，右侧盒处理控制器，左侧盘处理和处理控制器以及左侧盒处理控制器来实现该工具的控制。两个磁盘处理和处理控制器共享执行纹理化处理的硬件资源。

13. 发明授权

US5822211A Laser texturing apparatus with dual laser paths having an independently adjusted parameter 失效
标题翻译：具有双重激光路径的激光纹理设备具有独立调整的参数
公开(公告)号：US5822211A
公开(公告)日：1998-10-13
申请号：US748642
申请日：1996-11-13
申请人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Kami , Pieter J. M. Kerstens , Michael Gerard Lisanke , Huizong Lu , Lanphuong Thi Pena , Eric V. Schnetzer , Hong S. Seing , Ali Reza Taheri , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Kami , Pieter J. M. Kerstens , Michael Gerard Lisanke , Huizong Lu , Lanphuong Thi Pena , Eric V. Schnetzer , Hong S. Seing , Ali Reza Taheri , Andrew Ching Tam
IPC分类号： B23K26/00 , B23K26/067 , B23K26/08 , G11B5/82 , G11B5/84 , G11B23/00 , G06F19/00
CPC分类号： B23K26/0084 , B23K26/067 , B23K26/0676 , B23K26/0823 , G11B23/0028 , G11B5/82 , G11B5/8404 , G11B5/8408
摘要： A disk texturing process uses a single pulsed laser to texture disks within a first group, which are carried through the texturing process on a first spindle assembly, and from a second group, which are carried through the texturing process on a second spindle assembly. Preferably, disks from the first group are textured alternately with disks in the second group. A first level of least one texturing parameter is stored for use only as the process is applied to disks from the first group, while a second level of the same texturing parameter is stored for use only as the process is applied to disks from the second group. These levels may be derived from measurements of textured spots made with interferometric devices forming portions of a texturing station.
摘要翻译：磁盘纹理化处理使用单个脉冲激光来纹理在第一组内的光盘，第一组中的光盘通过第一主轴组件上的纹理化处理以及通过第二主轴组件上的纹理化工艺承载的第二组。优选地，来自第一组的盘与第二组中的盘交替地纹理化。存储第一级至少一个纹理参数，以便仅当该过程应用于来自第一组的磁盘时使用，而相同纹理参数的第二级别被存储以供使用，因为该过程被应用于来自第二组的磁盘。这些水平可以来自用形成纹理站的部分的干涉仪装置制成的纹理斑点的测量。

14. 发明授权

US5790433A Method for controlling laser power in a texturing process 失效
标题翻译：在纹理化过程中控制激光功率的方法
公开(公告)号：US5790433A
公开(公告)日：1998-08-04
申请号：US708627
申请日：1996-09-05
申请人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Hong S. Seing , Andrew Ching Tam
IPC分类号： B05D3/00 , B05D3/06 , G11B5/84 , B05D1/36
CPC分类号： G11B5/84
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a disk for a hard disk drive. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power level of each of these two beams is controlled by a program which operates in a teach mode to develop a look up table describing laser beam power as a function of a signal driving an attenuator, in a set point mode setting this drive signal to provide a certain laser beam power, in a run mode controlling this power through a feedback loop, and in a display mode showing laser beam power as a function of time.
摘要翻译：例如，使用磁盘纹理工具来在用于硬盘驱动器的盘的两侧的环形部分中提供纹理斑点。通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。光学系统包括一个定向在分束器处的激光器，以将激光束分成两束具有大致功率的光束，这些光束沿平行路径通过功率控制光学器件块，以同时暴露于待纹理光盘的相对侧。这两个光束中的每一个的功率电平由在教学模式下操作的程序控制，以便在设定该模式信号的设定点模式下形成描述作为驱动衰减器的信号的函数的激光束功率的查找表在通过反馈回路控制该功率的运行模式中提供一定的激光束功率，以及显示作为时间的函数的激光束功率的显示模式。

15. 发明授权

US5951891A Optical apparatus for monitoring profiles of textured spots during a disk texturing process 失效
标题翻译：用于在磁盘纹理化过程中监测纹理斑点的轮廓的光学装置
公开(公告)号：US5951891A
公开(公告)日：1999-09-14
申请号：US823273
申请日：1997-03-24
申请人： Michael Barenboim , Peter Michael Baumgart , Pieter J. M. Kerstens , Huizong Lu , Iraj Kahkesh Pour , Eric Von Schnetzer , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Pieter J. M. Kerstens , Huizong Lu , Iraj Kahkesh Pour , Eric Von Schnetzer , Hong S. Seing , Andrew Ching Tam
IPC分类号： B23K26/00 , B23K26/03 , B23K26/067 , B23K26/08 , G01B11/30
CPC分类号： B23K26/0084 , B23K26/032 , B23K26/0619 , B23K26/0643 , B23K26/0648 , B23K26/0652 , B23K26/066 , B23K26/067 , B23K26/0823
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately equal power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. A visible laser beam is also directed along this optical system to an inspection spot on each side of the disk, by which a central portion of each textured spots passes. A beam angle detector detects deflection of a reflection of the inspection beam from this spot in the direction of motion of the disk at this spot. This deflection provides a measure of the topography of the spot.
摘要翻译：例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。光学系统包括指向分束器的激光器，以将激光束分成具有大致相等功率的两个光束，所述光束具有大致相等的功率，这些光束沿着平行路径通过功率控制光学块，以同时暴露于待纹理的光盘的相对侧。可见光激光束也沿着该光学系统引导到盘的每侧的检查点，每个纹理斑点的中心部分通过该检查点。光束角检测器检测来自该光点的检查光束在该光点处的盘的运动方向上的偏转。该偏转提供了斑点的形貌的度量。

16. 发明授权

US6059555A Optical apparatus for dual-beam laser texturing 失效
标题翻译：双光束激光纹理光学装置
公开(公告)号：US6059555A
公开(公告)日：2000-05-09
申请号：US707383
申请日：1996-09-04
申请人： Michael Barenboim , Peter Michael Baumgart , Peter B. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Doug John Krajnovich , Iraj Kahkesh Pour , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter B. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Doug John Krajnovich , Iraj Kahkesh Pour , Hong S. Seing , Andrew Ching Tam
IPC分类号： C04B41/80 , C03C23/00 , G11B5/84
CPC分类号： G11B5/8404 , Y10S425/81
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately equal power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power control optics block includes means for attenuating and measuring each of the two beams. A shuttling mirror directs these two beams alternately at a disk within each of the two disk handling stations.
摘要翻译：例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。光学系统包括指向分束器的激光器，以将激光束分成具有大致相等功率的两个光束，所述光束具有大致相等的功率，这些光束沿着平行路径通过功率控制光学块，以同时暴露于待纹理的光盘的相对侧。功率控制光学块包括用于衰减和测量两个光束中的每一个的装置。穿梭镜将两个光束交替地引导到两个光盘处理站的每一个中的盘上。

17. 发明授权

US5981903A Laser system for simultaneous texturing of two sides of a substrate 失效
标题翻译：激光系统，用于同时纹理化两面基片
公开(公告)号：US5981903A
公开(公告)日：1999-11-09
申请号：US825307
申请日：1997-03-28
申请人： Peter Michael Baumgart , James Hammond Brannon , Chie Ching Poon , Iraj Kakesh Pour , Andrew Ching Tam
发明人： Peter Michael Baumgart , James Hammond Brannon , Chie Ching Poon , Iraj Kakesh Pour , Andrew Ching Tam
IPC分类号： G02F1/11 , G02F1/33 , G11B5/84 , G11B7/085 , G11B7/135 , B23K26/00
CPC分类号： G11B5/84 , G02F1/113 , G02F1/332
摘要： A laser system is described which concurrently directs highly equivalent diffracted beams derived from an initial laser beam to both sides of a substrate. The diffracted beams may be generated with sufficient energy to soften spots on the surfaces of the substrate to form texture bumps as are used on substrates for magnetic disks. The diffracted beams are generated by a multichannel acousto-optic modulator (MCAOM) having at least two channels. The crystal in the MCAOM has at least two mounting faces 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. Energizing any of the transducers causes a corresponding first order beam to be diffracted out. Preferably the diffracted beams are generated by alternating driving signals to transducers to produce two beams with pulse intensity greater than 50% of that of the incident beam which can be directed to opposite sides of a substrate for extremely uniform texturing.
摘要翻译：描述了激光系统，其同时将从初始激光束衍生的高等效衍射光束引导到衬底的两侧。可以用足够的能量产生衍射光束以软化基板表面上的光斑，以形成如用于磁盘的基板上的纹理凸起。衍射光束由具有至少两个通道的多通道声光调制器（MCAOM）产生。 MCAOM中的晶体具有定向的至少两个安装面，使得安装在其上的声学换能器以共同的角度即布拉格角产生与入射激光束相交的声场。激励任何一个换能器使相应的一阶光束被衍射。优选地，衍射光束通过交替的驱动信号产生到换能器以产生具有大于入射光束的50％的脉冲强度的两个光束，该光束可以被引导到基板的相对两侧以进行非常均匀的纹理化。

18. 发明授权

US5830514A Controlling pulses in a laser texturing tool 失效
标题翻译：在激光纹理工具中控制脉冲
公开(公告)号：US5830514A
公开(公告)日：1998-11-03
申请号：US707385
申请日：1996-09-04
申请人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benjamin Karni , Pieter J. M. Kerstens , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benjamin Karni , Pieter J. M. Kerstens , Hong S. Seing , Andrew Ching Tam
IPC分类号： B23K26/08 , G11B5/82 , G11B5/84 , G11B23/00
CPC分类号： G11B23/0028 , B23K26/0823 , G11B5/82 , G11B5/8404 , G11B5/8408
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. Texturing occurs as the annular portions are exposed to a train of pulses from a Q-switched laser. The Q-switch within the laser is driven by a radio-frequency signal form an oscillator, which is in turn driven by a signal from a pulse generator, which can be adjusted to leave the radio-frequency signal on for a variable time between pulses without changing pulse frequency. The laser may be equipped with a shutter and with an electronic gate selectively preventing the production of laser pulses.
摘要翻译：例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。当环形部分暴露于来自Q开关激光器的脉冲串时，发生纹理化。激光器内的Q开关由一个振荡器的射频信号驱动，振荡器又由一个来自脉冲发生器的信号驱动，该脉冲发生器可以被调节以使射频信号在脉冲之间变化一段时间不改变脉冲频率。激光器可以配备有快门和电子门，选择性地防止产生激光脉冲。

19. 发明授权

US6075604A Apparatus for measuring curvature of magnetic read/write head sliders 失效
标题翻译：用于测量磁读/写磁头滑块的曲率的装置
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。

20. 发明授权

US06049056A Method of laser cutting a metal line on an MR head with a laser 失效
标题翻译：用激光切割MR头上的金属线的方法
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。

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