公开(公告)号：US06710295B1

公开(公告)日：2004-03-23

申请号：US09594979

申请日：2000-06-15

申请人： Andrew Ching Tam ,  Chie Ching Poon ,  Ping-Wei Chang

发明人： Andrew Ching Tam ,  Chie Ching Poon ,  Ping-Wei Chang

IPC分类号： B23K2600

CPC分类号： G11B5/6005 ,  B21D11/20 ,  B23K26/02 ,  B23K26/0622 ,  B23K26/073 ,  G11B21/21

摘要： A method and apparatus for producing very high crown and camber curvature in slider materials using a laser processing system which produces fluence which is variable in a controllable manner, by applying a laser beam to the flex side of the slider material and varying the fluence of the laser beam to optimize the curvature in the slider material. The fluence is variable by finely controlling the power output of the laser or by changing the spot size of the laser beam. The beam spot size can be changed by using a focusing lens to establish a focal plane and then varying the relative positions of the slider relative and the focal plane. An apparatus for producing high crown and camber is also disclosed, as well as a slider produced by the process of applying a laser beam to the flex side of the slider material and varying the fluence of the laser beam to optimize the curvature in the slider material.

摘要翻译： 一种使用激光处理系统在滑块材料中产生非常高的冠和弧度曲率的方法和装置，该激光处理系统通过将激光束施加到滑块材料的弯曲侧并改变其能量密度而产生以可控方式变化的能量密度 激光束优化滑块材料的曲率。 通过精细地控制激光器的功率输出或通过改变激光束的光斑尺寸，注量变化是可变的。 可以通过使用聚焦透镜来建立焦平面，然后改变滑块相对和焦平面的相对位置来改变束斑尺寸。 还公开了一种用于制造高冠和弧度的装置，以及通过将激光束施加到滑块材料的弯曲侧并改变激光束的注量以优化滑块材料的曲率的方法制造的滑块 。

公开(公告)号：US06107599A

公开(公告)日：2000-08-22

申请号：US290648

申请日：1999-04-12

申请人： Peter Baumgart ,  Chie Ching Poon ,  Andrew Ching Tam

发明人： Peter Baumgart ,  Chie Ching Poon ,  Andrew Ching Tam

IPC分类号： B23K26/06 ,  C03C23/00 ,  G11B5/82 ,  G11B23/00 ,  B23K26/00 ,  G02F1/33

CPC分类号： B23K26/067 ,  B23K26/0619 ,  B23K26/0622 ,  C03C23/0025 ,  G11B23/0021 ,  G11B23/0057 ,  G11B5/82

摘要： Method and apparatus for laser texturing symmetrically and simultaneously both sides of a glass containing substrate, such as a magnetic disk. There are two or more acousto-optic modulators arranged in series to obtain equal laser pulses from a first beam from a laser, apparatus for capturing a first order diffracted beam from each acousto-optic modulator; monitoring the wavelength of the laser source, providing a visible indicator or diagnostic beam for each first order diffracted beam, and combining each first order diffracted beam with its respective indicator beam to form a texturing beam for texturing each side of the substrate.

摘要翻译： 用于激光纹理化的方法和装置，其对称地并且同时包含诸如磁盘的玻璃容纳衬底的两侧。 存在串联布置的两个或多个声光调制器，以从激光器的第一光束获得相等的激光脉冲，用于从每个声光调制器捕获一级衍射光束的装置; 监测激光源的波长，为每个一阶衍射光束提供可视指示器或诊断光束，以及将每个一阶衍射光束与其各自的指示光束组合以形成纹理光束，用于纹理化衬底的每一侧。

公开(公告)号：US5910262A

公开(公告)日：1999-06-08

申请号：US795627

申请日：1997-02-06

申请人： Peter Baumgart ,  Chie Ching Poon ,  Andrew Ching Tam

发明人： Peter Baumgart ,  Chie Ching Poon ,  Andrew Ching Tam

IPC分类号： B23K26/06 ,  C03C23/00 ,  G11B5/82 ,  G11B23/00 ,  B23K26/00

CPC分类号： B23K26/067 ,  B23K26/0619 ,  B23K26/0622 ,  C03C23/0025 ,  G11B23/0021 ,  G11B23/0057 ,  G11B5/82

摘要： Method and apparatus for laser texturing symmetrically and simultaneously both sides of a glass containing substrate, such as a magnetic disk. There are two or more acousto-optic modulators arranged in series to obtain equal laser pulses from a first beam from a laser, apparatus for capturing a first order diffracted beam from each acousto-optic modulator; monitoring the wavelength of the laser source, providing a visible indicator or diagnostic bean for each first order diffracted beam, and combining each first order diffracted beam with its respective indicator beam to form a texturing beam for texturing each side of the substrate.

摘要翻译： 用于激光纹理化的方法和装置，其对称地并且同时包含诸如磁盘的玻璃容纳衬底的两侧。 存在串联布置的两个或多个声光调制器，以从激光器的第一光束获得相等的激光脉冲，用于从每个声光调制器捕获一级衍射光束的装置; 监测激光源的波长，为每个一级衍射光束提供可见的指示器或诊断光束，以及将每个一阶衍射光束与其各自的指示光束组合以形成用于纹理化衬底的每一侧的纹理光束。

公开(公告)号：US5907144A

公开(公告)日：1999-05-25

申请号：US795579

申请日：1997-02-05

申请人： Chie Ching Poon ,  Clarence Jacob Spector ,  Andrew Ching Tam

发明人： Chie Ching Poon ,  Clarence Jacob Spector ,  Andrew Ching Tam

IPC分类号： G06K1/12 ,  G06K7/10

CPC分类号： G06K1/126

摘要： The invention is a method and apparatus for imprinting a microscopic code on a small surface, such as the edge of a magnetic disk, or the head used to read or write information to the disk and a magnetic disk imprinted with such microscopic identification codes. The invention provides a way to identify products using microscopic codes, such as bar codes, by using a laser to imprint such microscopic bar codes on a product. The identification meets the stringent cleanliness requirements of the computer industry without generating debris, and so is exceptionally suited for use in identifying hard disks and heads used in a disk drive.

摘要翻译： 本发明是用于将微观代码压印在小表面上的方法和装置，例如磁盘的边缘，或用于读取或写入信息的磁头以及用这种显微识别码印上的磁盘。 本发明提供了一种通过使用激光将诸如条形码等微观代码印在产品上的微观代码来识别产品的方法。 识别符合计算机行业的严格清洁要求，而不会产生碎片，因此特别适合用于识别磁盘驱动器中使用的硬盘和磁头。

公开(公告)号：US08035988B2

公开(公告)日：2011-10-11

申请号：US11763962

申请日：2007-06-15

申请人： Robert E. Fontana, Jr. ,  Sergey Kiselev ,  Edward Hin Pong Lee ,  Kenneth Donald Mackay ,  Surya Narayan Pattanaik ,  Chie Ching Poon

发明人： Robert E. Fontana, Jr. ,  Sergey Kiselev ,  Edward Hin Pong Lee ,  Kenneth Donald Mackay ,  Surya Narayan Pattanaik ,  Chie Ching Poon

IPC分类号： H05K9/00

CPC分类号： G11B5/40 ,  G11B5/4853

摘要： The present invention provides methods and systems for repeatably creating and severing a short circuit to protect an electronic component from ESD. A short circuit may be formed between read sensor pads of a read sensor by depositing a shorting material on a magnetic head using a Laser Induced Forward Transfer (LIFT) process. The short circuit may be unshorted using a laser scan configured to sever the shorting material. In one embodiment, a shorting station may be provided to prevent spreading of the shorting material to undesired areas of the electronic component.

摘要翻译： 本发明提供了用于重复地创建和切断短路以保护电子部件免受ESD的方法和系统。 通过使用激光诱导正转（LIFT）工艺将短路材料沉积在磁头上，可以在读取传感器的读取传感器焊盘之间形成短路。 可以使用配置为切断短路材料的激光扫描来对该短路进行未调整。 在一个实施例中，可以提供短路站以防止短路材料扩散到电子部件的不期望的区域。

公开(公告)号：US07133254B2

公开(公告)日：2006-11-07

申请号：US10452553

申请日：2003-05-30

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Michael P. Salo ,  Hemantha Kumar Wickramasinghe

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Michael P. Salo ,  Hemantha Kumar Wickramasinghe

IPC分类号： G11B5/147 ,  G11B5/02 ,  G11B21/02

CPC分类号： G11B5/3136 ,  G11B5/10 ,  G11B5/105 ,  G11B5/127 ,  G11B5/3103 ,  G11B5/3967 ,  G11B5/54 ,  G11B5/58 ,  G11B5/6064 ,  G11B2005/001 ,  G11B2005/0021

摘要： A magnetic recording disk drive has a magnetic recording head that includes first and second separating layers, and a heater formed between the first and second separating layers. The heater has a dimension such a thermal protrusion is induced in the recording head and a thermal conductance between the recording head and a recording medium is enhanced.

摘要翻译： 磁记录盘驱动器具有包括第一和第二分离层的磁记录头和形成在第一和第二分离层之间的加热器。 加热器具有在记录头中感应出这样的热突起的尺寸，并且增强了记录头和记录介质之间的热传导。

公开(公告)号：US06650511B2

公开(公告)日：2003-11-18

申请号：US10074504

申请日：2002-02-11

申请人： Richard Hsiao ,  James Devereaux Jarratt ,  Chie Ching Poon

发明人： Richard Hsiao ,  James Devereaux Jarratt ,  Chie Ching Poon

IPC分类号： G11B539

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/10 ,  G11B5/102 ,  G11B5/11 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/40 ,  G11B5/4806 ,  G11B2005/3996

摘要： A multi-layer electrically conductive shunt is located on the exterior surface of a slider in electrical contact and extending between first and second lead ends of leads that are connected to a sensor of a read head. Electrically conductive spaced apart first and second read pads are located on the conductive shunt in electrical contact with the first and second lead ends via the conductive shunt. The conductive shunt includes a thick gold layer which is located between and interfaces an adhesion layer and a cap layer wherein the adhesion layer makes direct electrical contact with the aforementioned first and second lead ends.

摘要翻译： 多层导电分流器位于滑动件的外表面上，电触头并且在连接到读头的传感器的引线的第一和第二引线端之间延伸。 导电间隔开的第一和第二读取垫位于导电分流器上，通过导电分路与第一和第二引线端电接触。 导电分流器包括厚金层，其位于粘合层和覆盖层之间并且与粘合层接合，其中粘合层与上述第一和第二引线端直接电接触。

公开(公告)号：US06631548B2

公开(公告)日：2003-10-14

申请号：US09916855

申请日：2001-07-27

申请人： Ping-Wei Chang ,  Chie Ching Poon ,  Andrew C. Tam

发明人： Ping-Wei Chang ,  Chie Ching Poon ,  Andrew C. Tam

IPC分类号： G11B5127

CPC分类号： G11B5/6005 ,  B21D1/00 ,  Y10T29/49036 ,  Y10T29/49041 ,  Y10T29/49048

摘要： Methods for adjusting the curvature of a slider may include providing a first slider including an air bearing surface and a back surface opposite the air bearing surface. The camber and crown of the first slider are measured, and a plurality of scribes are made at positions on the back surface of the first slider. The change in camber and crown due to each scribe on the first slider is measured. The scribe position and change in crown and camber per position is recorded in a data structure. A second slider is provided, the second slider including an air bearing surface and a back surface opposite the air bearing surface. The camber and crown of the second slider are measured. A desired amount of change in crown and camber is determined. Scribe positions are selected based on information from the data structure so that the desired amount of change in crown and camber will be obtained. The back surface of the second slider is scribed at the selected scribe positions.

摘要翻译： 用于调节滑块的曲率的方法可以包括提供包括空气支承表面和与空气支承表面相对的后表面的第一滑块。 测量第一滑动件的弯度和凸度，并且在第一滑块的后表面上的位置处形成多个划线条。 测量由于第一滑块上的每个划痕引起的弯度和凸度的变化。 刻印位置和每个位置的表冠和弧度的变化记录在数据结构中。 提供了第二滑块，第二滑块包括空气轴承表面和与空气轴承表面相对的后表面。 测量第二个滑块的外倾角和表冠。 确定冠和弯度的期望量的变化。 根据来自数据结构的信息来选择划痕位置，从而获得所需的冠和弯度变化量。 第二个滑块的后表面被刻划在所选择的划线位置。

公开(公告)号：US06538857B1

公开(公告)日：2003-03-25

申请号：US09662247

申请日：2000-09-14

申请人： Saad Doss ,  Glen Adam Garfunkel ,  Edward Hin Pong Lee ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Andrew Ching Tam

发明人： Saad Doss ,  Glen Adam Garfunkel ,  Edward Hin Pong Lee ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Andrew Ching Tam

IPC分类号： G11B540

CPC分类号： G11B5/4853 ,  G11B5/3106 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/4806 ,  G11B2005/0016

摘要： A read head is provided with an N-cycle switch for sequentially shorting and unshorting a sense current circuit of a read head so that the read head will be protected from electrostatic discharges (ESDs) by shorting when the read head is not being tested and unshorted during tests of the read head. The shorting and unshorting switches, which are mounted on or in a slider carrying the read head, are activated by a laser beam.

摘要翻译： 读头设置有N周期开关，用于顺序地短路和取消点读头的感测电流电路，使得当读头不被测试且未被排序时，通过短路来保护读头免受静电放电（ESD）的影响 在读头测试期间。 安装在携带读取头的滑块上或其中的短路和非启动开关由激光束激活。

公开(公告)号：US06321440B1

公开(公告)日：2001-11-27

申请号：US09189480

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： G11B5127

CPC分类号： G11B5/60 ,  Y10S977/724 ,  Y10S977/951 ,  Y10T29/49004 ,  Y10T29/49036 ,  Y10T29/49037 ,  Y10T29/49041 ,  Y10T29/49764 ,  Y10T29/49771

摘要： A method for adjusting the curvature of an air bearing surface (ABS) of a slider having a back surface opposite the ABS. The method includes steps of repeatedly measuring the curvature of the ABS and scribing lines (e.g. with a laser scribing tool) on the back surface to partially adjust the curvature of the ABS. In each measuring/scribing installment, the curvature of the ABS is measured and compared with a final target curvature to determine a curvature difference between the measured curvature and final target curvature. Each installment of scribing lines corrects for a predetermined percentage of the curvature difference. The predetermined percentage may be different in succeeding installments. Alternatively, each installment changes the curvature of the slider to match an intermediate target curvature. In a three-installment process, for example, there will be two intermediate target curvatures and a final target curvature.

摘要翻译： 一种用于调节具有与ABS相对的后表面的滑块的空气轴承表面（ABS）的曲率的方法。 该方法包括以下步骤：在背面上重复地测量ABS和划线（例如用激光划线工具）的曲率以部分地调节ABS的曲率。 在每个测量/划线装置中，测量ABS的曲率并与最终目标曲率进行比较，以确定测量的曲率和最终目标曲率之间的曲率差。 每一批划线将校正曲率差的预定百分比。 后续分期付款的预定百分比可能不同。 或者，每个装置改变滑块的曲率以匹配中间目标曲率。 例如，在三次安装过程中，将存在两个中间目标曲率和最终目标曲率。