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：US07133257B2

公开(公告)日：2006-11-07

申请号：US11038332

申请日：2005-01-18

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

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

IPC分类号： G11B5/60 ,  G11B5/127

CPC分类号： G11B5/4826 ,  G11B5/6082 ,  Y10T29/49036

摘要： Embodiments include a method for adjusting the twist, crown and camber of an air bearing surface a slider to substantially match final target values for twist, crown and camber, the slider having a back surface opposite the air bearing surface. The method includes the steps of measuring the twist, crown and camber of the at least one slider. A first group of twist scribes may be formed on the back surface. A first group of crown and camber scribes are formed on the back surface. The twist, crown and camber of the slider are measured and comparing to the final target values. Additional twist scribes may be formed if the final target value for twist is not reached or if the final target value is exceeded. Additional crown and camber scribes may be formed if the final target values for crown and camber are not obtained.

摘要翻译： 实施例包括一种用于调节空气轴承表面的扭转，冠部和弯度的方法，该滑块用于基本上匹配用于扭转，冠部和弯度的最终目标值，滑块具有与空气支承表面相对的后表面。 该方法包括以下步骤：测量至少一个滑块的扭转，凸度和弯度。 可以在后表面上形成第一组扭转划线。 在背面形成第一组冠和弧形文字。 测量滑块的扭曲，凸度和弯度，并与最终目标值进行比较。 如果没有达到扭曲的最终目标值或超过最终目标值，则可以形成额外的扭转划线。 如果没有获得冠和弯度的最终目标值，则可以形成额外的冠和弧形划线。

公开(公告)号：US06888701B2

公开(公告)日：2005-05-03

申请号：US09916856

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： G11B5/60 ,  G11B5/127 ,  B23K26/00 ,  H04R31/00

CPC分类号： G11B5/60 ,  Y10T29/49036

摘要： Embodiments include a method for adjusting the twist of an air bearing surface of at least one slider to substantially match a target values for twist, the at least one slider having a back surface opposite the air bearing surface, the back surface including two sets of diagonally opposite corner regions, with each set including one corner region adjacent to a leading edge of the slider and one corner region adjacent to a trailing edge of the slider. The method includes forming a first mechanical scribe on the back surface extending through at least a portion of the corner regions adjacent to the leading edge of the slider and forming a second mechanical scribe on the back surface extending through at least a portion of the corner regions adjacent to the trailing edge of the slider. The method also includes measuring the twist of the slider, and forming a first group of laser scribes on the back surface in one of the two sets of diagonally opposite corner regions, wherein each of the laser scribes intersects with one of the first and second mechanical scribes. The method also includes measuring the twist of the slider and comparing the values to the target value for twist, and forming additional laser scribes if the target value for twist is not reached.

摘要翻译： 实施例包括一种用于调节至少一个滑块的空气轴承表面的扭曲以基本上匹配扭转目标值的方法，所述至少一个滑块具有与空气轴承表面相对的后表面，所述后表面包括两组对角线 每个组包括与滑块的前缘相邻的一个角区域和与滑块的后缘相邻的一个角区域。 该方法包括在后表面上形成第一机械刻痕，其延伸穿过与滑块的前缘相邻的角部区域的至少一部分，并且在后表面上形成延伸穿过角部区域的至少一部分的第二机械划线 邻近滑块的后缘。 该方法还包括测量滑块的扭曲，以及在两组对角线相对的拐角区域中的一组中的后表面上形成第一组激光划线，其中每个激光划线器与第一和第二机械 文士 该方法还包括测量滑块的扭曲并将该值与目标值进行比较，如果没有达到扭曲的目标值，则形成附加的激光划片。

公开(公告)号：US5586040A

公开(公告)日：1996-12-17

申请号：US419885

申请日：1995-04-11

申请人： Peter M. Baumgart ,  Christopher S. Gudeman ,  Douglas J. Krajnovich ,  Steven W. Meeks ,  Thao A. Nguyen ,  Fior D. Sargent ,  Andrew C. Tam ,  Gerard H. Vurens

发明人： Peter M. Baumgart ,  Christopher S. Gudeman ,  Douglas J. Krajnovich ,  Steven W. Meeks ,  Thao A. Nguyen ,  Fior D. Sargent ,  Andrew C. Tam ,  Gerard H. Vurens

IPC分类号： G11B5/60 ,  G11B5/82 ,  G11B5/84 ,  G11B33/10 ,  G06F19/00 ,  B05D3/06

CPC分类号： G11B5/8408 ,  G11B5/82 ,  G11B5/8404 ,  G11B33/10 ,  G11B5/6011

摘要： Controlled laser texturing of a magnetic recording disk is accomplished by use of a textured test band on the disk and an analyzing laser system to provide feedback to the texturing laser. The analyzing laser system determines, from diffracted laser light, the average height of the laser-induced bumps formed in the test band by the texturing laser. The analyzing laser beam is directed to the substrate surface and overlaps a group of individual bumps formed in a repetitive pattern. A scanning linear photodector array receives light diffracted from the surface. The digitized output of the array is the angular distribution of diffracted light intensities and is used to compute the average height of the bumps in the test band. The disk is then translated radially so that the texturing laser is aligned with the region of the disk where the textured landing zone is to be placed. Then, in response to the computed value of average bump height in the test band, a correction signal or signals is output to modify one or more parameters of the texturing laser so that the texturing laser can form bumps of the correct average height in the textured landing zone.

摘要翻译： 通过使用磁盘上的纹理测试带和分析激光系统来对纹理激光器提供反馈来实现磁记录盘的受控激光纹理化。 分析激光系统通过衍射激光确定通过纹理激光在测试带中形成的激光诱发凸块的平均高度。 分析激光束被引导到衬底表面并与重复形成的一组单独的凸块重叠。 扫描线性光电二极管阵列接收从表面衍射的光。 阵列的数字化输出是衍射光强度的角度分布，用于计算测试带中的凸块的平均高度。 然后盘被径向地转动，使得纹理化激光与要被放置纹理着色区的盘的区域对齐。 然后，响应于测试频带中的平均凸块高度的计算值，输出校正信号或信号以修改纹理化激光器的一个或多个参数，使得纹理化激光器可以形成纹理中正确平均高度的凸起 着陆区。

公开(公告)号：US07239481B2

公开(公告)日：2007-07-03

申请号：US11248902

申请日：2005-10-11

申请人： Jeffrey S. Lille ,  Andrew C. Tam

发明人： Jeffrey S. Lille ,  Andrew C. Tam

IPC分类号： G11B5/147

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B11/10536 ,  G11B2005/0002 ,  G11B2005/0021

摘要： A magnetic head including a media heating device that is preferably fabricated within the magnetic head structure. The heating device preferably includes an electrical heating element and electrical leads, where an insulation layer disposed above the heating element is 2 to 4 times thicker than the heating element. The electrical leads preferably overlay the heating element in an overlay area of at least 1 μm2. The heating device may be fabricated upon the surface of the magnetic head substrate prior to the fabrication of magnetic head components. The media heating device is fabricated with diffusion barrier layers and/or adhesion layers beneath the heating device layers, between heating device layers and/or above the heating device layers.

摘要翻译： 一种磁头，包括优选地在磁头结构内制造的介质加热装置。 加热装置优选地包括电加热元件和电引线，其中设置在加热元件上方的绝缘层比加热元件厚2至4倍。 电引线优选地在至少1mum 2的覆盖区域覆盖加热元件。 在制造磁头部件之前，可以在磁头基板的表面上制造加热装置。 介质加热装置由加热装置层之下，加热装置层之间和/或加热装置层之上的扩散阻挡层和/或附着层制造。

公开(公告)号：US5544775A

公开(公告)日：1996-08-13

申请号：US363159

申请日：1994-12-22

申请人： Randall T. Kerth ,  Douglas J. Krajnovich ,  Murlidhar V. Kulkarni ,  Wing P. Leung ,  Andrew C. Tam

发明人： Randall T. Kerth ,  Douglas J. Krajnovich ,  Murlidhar V. Kulkarni ,  Wing P. Leung ,  Andrew C. Tam

IPC分类号： B23K26/12 ,  B23C3/00

CPC分类号： G11B5/3106 ,  B23K26/123 ,  B23K26/126 ,  B23K26/40 ,  G11B5/102 ,  B23K2203/50 ,  G11B5/3163

摘要： A method is provided for making a high definition, high aspect ratio amorphous carbon element, such as a slider, which carries one or more magnetic heads in a disk drive. A special gaseous environment is provided during laser etching which results in virtually no redeposition of the etched material. The result is a carbon element which has good edge definition for establishing desirable flying characteristics of a slider. In a preferred embodiment the laser etching, which is preferably implemented by an excimer laser, is performed in an gaseous environment of oxygen saturated with water vapor at a pressure above ambient. Significant improvements were also realized with nitrogen saturated with water vapor at a pressure above ambient and steam at ambient pressure. High aspect ratios were achieved, namely slope angles of 50.degree. to 60.degree..

摘要翻译： 提供了一种用于制造高清晰度，高纵横比的无定形碳元素（例如滑块）的方法，其在盘驱动器中承载一个或多个磁头。 在激光蚀刻期间提供特殊的气体环境，导致蚀刻材料几乎不再沉积。 结果是具有良好的边缘定义的碳元素，用于确定滑块的理想的飞行特性。 在优选实施例中，优选由准分子激光器实施的激光蚀刻在高于环境温度的压力下在水蒸气饱和的氧气的气态环境中进行。 在高于环境压力的水蒸汽饱和的氮气和环境压力下的蒸汽下，也实现了显着的改进。 达到高纵横比，即倾斜角为50°〜60°。

公开(公告)号：US4303343A

公开(公告)日：1981-12-01

申请号：US125985

申请日：1980-02-29

申请人： Chandra K. N. Patel ,  Andrew C. Tam

发明人： Chandra K. N. Patel ,  Andrew C. Tam

IPC分类号： G01N21/17 ,  G01N29/00 ,  G01N29/24 ,  G01N21/01

CPC分类号： G01N21/1702 ,  G01N29/00 ,  G01N29/2418 ,  G01N2291/0421

摘要： Method and apparatus for high-sensitivity (.alpha..ltorsim.10.sup.-6 cm.sup.-1) optoacoustic (OA) spectroscopy of substantially transparent bulk condensed matter. Part of the sample to be investigated is irradiated by pulses of radiation, typically from a pulsed dye laser. The small amount of energy absorbed by the sample causes thermal expansion of the irradiated region, resulting in cylindrical stress waves being radiated from that region. These stress waves can be observed with appropriate detection means at a location remote from the source. The method is applicable to essentially transparent liquids, and solids, and to absorptive solids suspended in liquids, and the like. Possible choices of probe radiation are not only the conventional ones of visible, near UV, and near infrared electromagnetic radiation, but also, for instance, .gamma.-rays, x-rays, vacuum UV, and far infrared. Two conditions are shown to exist that relate pulse duration, beam size, and various material parameters, observation of which results in optimization of the sensitivity of the method, and the sensitivity is typically highest for pulses having duration of about 10.sup.-7 sec-10.sup.-4 sec.

摘要翻译： 用于基本上透明的大体积凝聚物的高灵敏度（α近似10-6cm-1）光声（OA）光谱的方法和装置。 待调查的样品的一部分被辐射的脉冲照射，通常来自脉冲染料激光。 样品吸收的少量能量引起照射区域的热膨胀，导致圆柱形应力波从该区域辐射。 这些应力波可以用适当的检测装置在远离源的位置观察。 该方法适用于基本上透明的液体和固体，以及悬浮在液体中的吸收性固体等。 探头辐射的可能选择不仅仅是可见光，近紫外线和近红外电磁辐射的传统方法，而且还可以是例如γ射线，X射线，真空紫外线和远红外线。 显示存在两个条件，其涉及脉冲持续时间，光束尺寸和各种材料参数，观察其导致该方法的灵敏度的优化，并且对于具有约10-7秒-10的脉冲的灵敏度通常是最高的 -4秒

公开(公告)号：US5528819A

公开(公告)日：1996-06-25

申请号：US451935

申请日：1995-05-26

申请人： Jeffrey M. McKay ,  Henry S. Nishihira ,  Andrew C. Tam

发明人： Jeffrey M. McKay ,  Henry S. Nishihira ,  Andrew C. Tam

IPC分类号： G11B5/187 ,  G11B5/31 ,  G11B5/48 ,  G11B5/49 ,  G11B5/60 ,  G11B21/00 ,  G11B21/21

CPC分类号： G11B5/6005 ,  G11B21/00 ,  G11B5/3103 ,  G11B5/4806 ,  G11B5/4813 ,  G11B5/4833 ,  G11B5/484 ,  G11B5/49 ,  Y10T29/49032 ,  Y10T29/49041

摘要： A disk drive assembly in which the suspension, slider and transducer are integrated and fabricated to produce a combination assembly. The combination transducer-slider-suspension assembly is batch produced by forming a plurality of the combination assemblies onto a single wafer. The wafer is then diced to separate the assemblies into individual sections. The transducers are deposited onto the wafer and the air bearing surface formed. Conductors to interconnect each transducer with the external circuits are insulated from the wafer and deposited along a path which will form the suspension. A spring-like resilient layer is then deposited over and electrically insulated from the conductors. The wafer is then pattern etched to remove a portion of the wafer backside to form the suspension and provide a transducer/slider combination having an air bearing surface after the wafer is diced to separate the individual combination assemblies. The air bearing surface is defined as the slider surface immediately adjacent the media surface during read/write operation of the disk drive assembly whether or not the slider is flying above or in sliding contact with the media surface during operation. Integrated circuit amplifiers can be deposited at the free end of the conductors prior to separation of individual assemblies.

公开(公告)号：US4276780A

公开(公告)日：1981-07-07

申请号：US98630

申请日：1979-11-29

申请人： Chandra K. N. Patel ,  Andrew C. Tam

发明人： Chandra K. N. Patel ,  Andrew C. Tam

IPC分类号： G01N21/17 ,  G01N29/22 ,  G01N29/24 ,  G01N29/34 ,  G01N29/46 ,  G01N29/00

CPC分类号： G01N29/2425 ,  G01N21/1702 ,  G01N29/223 ,  G01N29/2431 ,  G01N29/346 ,  G01N29/46 ,  G01N2291/015 ,  G01N2291/0231 ,  G01N2291/0237 ,  G01N2291/02416 ,  G01N2291/02827 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/102

摘要： Method and apparatus for high-sensitivity optoacoustic (OA) spectroscopy of condensed matter in thin layer form. The layer to be investigated is to be in intimate contact with a solid substrate that is essentially transparent to the probe radiation, and that is capable of transmitting ultrasonic vibrations. Intermittent probe radiation, focused to a diameter typically 10.sup.-3 -1 cm when incident on the layer, cause local heating and dimensional change in the irradiated region of the layer. The dimensional change of that region causes deformation of the adjacent substrate material, the irradiated layer region thereby becoming a source of ultrasonic waves that are spreading out in the substrate from the source region, and which can be observed with appropriate detection means at a location remote from the source. The method is applicable to liquids, solids suspended in liquids, gels, continuous or discontinuous solid films, powders, monolayers of strongly absorbing atoms, surfaces, and layerlike distributions of absorbing atoms within an essentially transparent matrix. Possible choices of probe radiation are not only the conventional ones of visible, near-UV, and near-infrared electromagnetic radiation, but also, for instance, X-rays, vacuum UV, and infrared, and matter beams, such as electron, ion, or neutral atom beams. Typical means for detecting the ultrasonic signal are ultrasonic bulk wave or surface wave transducers. For sufficiently short probe pulses, the amplitude of the ultrasonic signal is directly proportional to the absorption of the layer material at the frequency of the probe radiation, but longer pulses, such as, for instance, are obtained from mechanical choppers, can be used also. Apparatus is disclosed that minimizes interference with the measurement due to scattered light and transducer ringing, and that permits the measurement of fractional absorption down to 10.sup.-6 or less.

摘要翻译： 用于薄层形式的凝聚物的高灵敏度光声（OA）光谱法的方法和装置。 待研究的层应与基本上对探针辐射透明的固体基底紧密接触，并且能够发射超声波振动。 间歇探针辐射，当入射到层上时，聚焦到通常为10-3-1cm的直径，引起层的照射区域的局部加热和尺寸变化。 该区域的尺寸变化导致相邻基板材料的变形，因此照射的层区域成为从源极区域在基板中扩展的超声波源，并且可以通过适当的检测装置在远程位置观察 从源头。 该方法适用于液体，悬浮在液体中的固体，凝胶，连续或不连续的固体膜，粉末，强吸收原子的单层，表面和基本上透明的基质内吸收原子的层状分布。 探测辐射的可能选择不仅是常规的可见光，近紫外和近红外电磁辐射，还可以是例如X射线，真空紫外线和红外线以及物质光束，如电子，离子 ，或中性原子束。 用于检测超声信号的典型装置是超声波体波或表面波换能器。 对于足够短的探针脉冲，超声波信号的振幅与探针辐射频率处的层材料的吸收成正比，但是也可以使用诸如例如机械斩波器的较长脉冲 。 公开了使散射光和换能器振铃引起的对测量的干扰最小化的装置，并且允许将分数吸收的测量降低到10-6或更小。

公开(公告)号：USRE36538E

公开(公告)日：2000-02-01

申请号：US104130

申请日：1998-06-24

申请人： Jeffrey M. McKay ,  Henry S. Nishihira ,  Andrew C. Tam

发明人： Jeffrey M. McKay ,  Henry S. Nishihira ,  Andrew C. Tam

IPC分类号： G11B5/187 ,  G11B5/31 ,  G11B5/48 ,  G11B5/49 ,  G11B5/60 ,  G11B21/00 ,  G11B21/21 ,  G11B5/42

CPC分类号： G11B5/6005 ,  G11B21/00 ,  G11B5/3103 ,  G11B5/4806 ,  G11B5/4813 ,  G11B5/4833 ,  G11B5/484 ,  G11B5/49 ,  Y10T29/49032 ,  Y10T29/49041

摘要： A disk drive assembly in which the suspension, slider and transducer are integrated and fabricated to produce a combination assembly. The combination transducer-slider-suspension assembly is batch produced by forming a plurality of the combination assemblies onto a single wafer. The wafer is then diced to separate the assemblies into individual sections. The transducers are deposited onto the wafer and the air bearing surface formed. Conductors to interconnect each transducer with the external circuits are insulated from the wafer and deposited along a path which will form the suspension. A spring-like resilient layer is then deposited over and electrically insulated from the conductors. The wafer is then pattern etched to remove a portion of the wafer backside to form the suspension and provide a transducer/slider combination having an air bearing surface after the wafer is diced to separate the individual combination assemblies. The air bearing surface is defined as the slider surface immediately adjacent the media surface during read/write operation of the disk drive assembly whether or not the slider is flying above or in sliding contact with the media surface during operation. Integrated circuit amplifiers can be deposited at the free end of the conductors prior to separation of individual assemblies.

摘要翻译： 磁盘驱动器组件，其中悬架，滑块和换能器被集成和制造以产生组合组件。 通过将多个组合组件形成在单个晶片上来批量生产组合传感器 - 滑块 - 悬挂组件。 然后将晶片切割成将组件分离成单个部分。 传感器沉积在晶片上并形成空气轴承表面。 将每个换能器与外部电路互连的导体与晶片绝缘，并沿着将形成悬架的路径沉积。 然后将弹簧状弹性层沉积在导电体上并与导体电绝缘。 然后对晶片进行图形蚀刻以去除晶片背面的一部分以形成悬架，并且在切割晶片以分离各个组合组件之后提供具有空气轴承表面的换能器/滑块组合。 空气支承表面被定义为在盘驱动器组件的读/写操作期间与介质表面紧邻的滑块表面，无论滑块是否在操作期间飞越高于介质表面或与介质表面滑动接触。 在分离各个组件之前，集成电路放大器可以在导体的自由端沉积。