公开(公告)号：US07262936B2

公开(公告)日：2007-08-28

申请号：US10791002

申请日：2004-03-01

申请人： Hendrik F. Hamann ,  Prakash Kasiraj ,  Jeffrey S. Lille ,  Yves C. Martin ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Jan-Ulrich Thiele ,  Hemantha Kumar Wickramasinghe

发明人： Hendrik F. Hamann ,  Prakash Kasiraj ,  Jeffrey S. Lille ,  Yves C. Martin ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Jan-Ulrich Thiele ,  Hemantha Kumar Wickramasinghe

IPC分类号： G11B5/00

CPC分类号： G11B5/127 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A heating device for a magnetic recording head includes first and second separating layers, the first separating layer having preferably a higher or equal thermal resistance than the first separating layer, and a heater formed between the first and second separating layers. A magnetic recording head for recording on magnetic medium includes a heating device which generates a heat spot on the magnetic medium which is larger than a magnetic track width, and/or heats a portion of the magnetic recording head which is on a leading edge side of a write gap in the magnetic recording head.

摘要翻译： 用于磁记录头的加热装置包括第一和第二分离层，第一分离层优选地具有比第一分离层更高或相等的热阻，以及形成在第一和第二分离层之间的加热器。 用于在磁介质上记录的磁记录头包括加热装置，该加热装置在磁介质上产生大于磁道宽度的热点，和/或加热位于磁介质的前缘侧的磁记录头的一部分 磁记录头中的写入间隙。

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：US07759630B2

公开(公告)日：2010-07-20

申请号：US11645827

申请日：2006-12-26

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： H01J3/14 ,  H01J5/16

CPC分类号： G01Q60/22 ,  G01J3/10 ,  G11B7/1387 ,  Y10S977/892

摘要： Methods and devices for generating multiple, closely spaced, independently controlled near-field light sources are disclosed. By providing an aperture having at least two, orthogonally oriented ridge structures, two or more closely spaced near-field light sources can be generated by controlling the polarization direction of the illuminating radiation. Control of the shape of the aperture, and relative dimensions of the ridge structures allows optimization of the relative intensities of the near-field sources.

摘要翻译： 公开了用于产生多个，紧密间隔的独立控制的近场光源的方法和装置。 通过提供具有至少两个正交定向的脊结构的孔，可以通过控制照明辐射的偏振方向来产生两个或更多个紧密间隔的近场光源。 孔的形状的控制和脊结构的相对尺寸允许优化近场源的相对强度。

公开(公告)号：US07345853B2

公开(公告)日：2008-03-18

申请号：US11745787

申请日：2007-05-08

申请人： Meng Ding ,  Surya Narayan Pattanaik ,  Chie Ching Poon ,  Neil Leslie Robertson

发明人： Meng Ding ,  Surya Narayan Pattanaik ,  Chie Ching Poon ,  Neil Leslie Robertson

IPC分类号： G11B5/39

CPC分类号： G11B5/11 ,  B23K1/0056 ,  B23K1/018 ,  B23K26/0622 ,  B23K26/354 ,  B23K2101/42 ,  G11B5/3906 ,  G11B5/40

摘要： A device according to one embodiment includes an electronic component such as an MR sensor, a pair of leads operatively coupled to the electronic component, and shorting material between the leads, the shorting material having been applied by a laser deposition process, the shorting material having been severed. A magnetic storage system according to another embodiment includes magnetic media; and at least one head for reading from and writing to the magnetic media, each head having: a sensor; and a writer coupled to the sensor. The system also includes a pair of pads or leads operatively coupled to the head; shorting material between the leads, the shorting material having been applied by a laser deposition process, the shorting material having been severed; a slider for supporting the head; and a control unit coupled to the head for controlling operation of the head.

摘要翻译： 根据一个实施例的装置包括诸如MR传感器的电子部件，可操作地耦合到电子部件的一对引线以及引线之间的短路材料，通过激光沉积工艺施加了短路材料，所述短路材料具有 被切断 根据另一实施例的磁存储系统包括磁介质; 以及用于从磁介质读取和写入至少一个头部，每个头部具有：传感器; 以及耦合到传感器的写入器。 该系统还包括可操作地耦合到头部的一对垫或引线; 在引线之间短路材料，通过激光沉积工艺施加的短路材料，短路材料已被切断; 用于支撑头部的滑块; 以及耦合到头部用于控制头部的操作的控制单元。

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。

公开(公告)号：US5759428A

公开(公告)日：1998-06-02

申请号：US616395

申请日：1996-03-15

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 width of the conductive line so that each laser pulse melts conductive material 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。 该方法在导线的宽度上以高脉冲速度穿过最小能量，短激光脉冲，使得每个激光脉冲在导线上熔化导电材料，熔化的材料从熔化区域中排出并堆叠在相邻部分的顶部 删除垫由表面张力和熔化的材料在下一个脉冲之前冷却至室温，使得没有累积加热，因此不会从底层结构损坏或碎屑。 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。

公开(公告)号：US20080149809A1

公开(公告)日：2008-06-26

申请号：US11645827

申请日：2006-12-26

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G01J1/20

CPC分类号： G01Q60/22 ,  G01J3/10 ,  G11B7/1387 ,  Y10S977/892

摘要： Methods and devices for generating multiple, closely spaced, independently controlled near-field light sources are disclosed. By providing an aperture having at least two, orthogonally oriented ridge structures, two or more closely spaced near-field light sources can be generated by controlling the polarization direction of the illuminating radiation. Control of the shape of the aperture, and relative dimensions of the ridge structures allows optimization of the relative intensities of the near-field sources.

摘要翻译： 公开了用于产生多个，紧密间隔的独立控制的近场光源的方法和装置。 通过提供具有至少两个正交定向的脊结构的孔，可以通过控制照明辐射的偏振方向来产生两个或更多个紧密间隔的近场光源。 孔的形状的控制和脊结构的相对尺寸允许优化近场源的相对强度。

公开(公告)号：US07236334B2

公开(公告)日：2007-06-26

申请号：US10931731

申请日：2004-08-31

申请人： Meng Ding ,  Surya Narayan Pattanaik ,  Chie Ching Poon ,  Neil Leslie Robertson

发明人： Meng Ding ,  Surya Narayan Pattanaik ,  Chie Ching Poon ,  Neil Leslie Robertson

IPC分类号： G11B5/39

CPC分类号： G11B5/11 ,  B23K1/0056 ,  B23K1/018 ,  B23K26/0622 ,  B23K26/354 ,  B23K2101/42 ,  G11B5/3906 ,  G11B5/40

摘要： A method for shorting, unshorting, and reshorting an electronic component such as an MR sensor provides a repeatable ESD protection scheme. A conductive line of an electrically conductive first shorting material is created between electrical leads operatively coupled to an electronic component for creating a short therebetween. The short is severed using a laser. The short is recreated by applying a second shorting material, which may or may not be the same as the first shorting material.

摘要翻译： 用于短路，不启动和重新安装诸如MR传感器的电子部件的方法提供了可重复的ESD保护方案。 导电的第一短路材料的导线在可操作地耦合到电子部件的电引线之间产生，以在其间产生短路。 使用激光切断短路。 通过应用与第一短路材料相同或不同的第二短路材料来重建短路。

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：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。