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1. 发明申请

US20060042073A1 Glide testing of disks with calibration confirmation testing by inducing collision of the slider with production disk surface 失效
标题翻译：通过引导滑块与生产磁盘表面的碰撞，通过校准确认测试来滑动测试磁盘
公开(公告)号：US20060042073A1
公开(公告)日：2006-03-02
申请号：US10931316
申请日：2004-08-31
申请人： Bradley Baumgartner , Norman Chu , Patricia Galindo , Hang Ngo , Yu Lo , Nalin Zhou
发明人： Bradley Baumgartner , Norman Chu , Patricia Galindo , Hang Ngo , Yu Lo , Nalin Zhou
IPC分类号： H01F41/02 , G12B13/00
CPC分类号： G11B5/455 , G11B5/6005 , G11B5/6076 , G12B13/00 , Y10T29/49069 , Y10T29/49771
摘要： A method is presented for glide testing a disk which tests the glide head fly-height by inducing a collision between the glide head and a disk under test. The glide test system is initially calibrated using calibration disks. The method of the invention periodically tests the calibration without interrupting the production testing by lowering the rotation rate until glide head collides with the rotating disk surface. The rotation rate at which the collision occurs is then compared with the value expected based on knowledge of disk samples and the initial calibration. Parameters for acceptable high and low values are established to detect changes in the glide test system performance to trigger automatic or manual recalibration.
摘要翻译：提出了一种用于滑行测试的方法，其通过引起滑动头和被测盘之间的碰撞来测试滑翔头飞行高度。滑行测试系统最初使用校准盘校准。本发明的方法周期性地测试校准，而不会通过降低旋转速率来中断生产测试，直到滑动头与旋转盘表面碰撞。然后将碰撞发生的旋转速率与基于磁盘样本知识和初始校准的预期值进行比较。建立可接受的高低值参数，以检测滑行测试系统性能的变化，以触发自动或手动重新校准。

2. 发明申请

US20050262922A1 System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights 失效
标题翻译：用于滑坡头校准的系统，方法和装置，具有增强的PZT通道，用于非常低的资格滑行高度
公开(公告)号：US20050262922A1
公开(公告)日：2005-12-01
申请号：US10857195
申请日：2004-05-28
申请人： Norman Chu , Shanlin Duan , Patricia Galindo , Hang Ngo , Yu Lo , Nalin Zhou
发明人： Norman Chu , Shanlin Duan , Patricia Galindo , Hang Ngo , Yu Lo , Nalin Zhou
IPC分类号： G01B7/14 , G01B7/34 , G01B11/14 , G01B11/30 , G11B5/455 , G11B5/60
CPC分类号： G11B5/6005 , G11B5/455
摘要： A glide head calibration technique uses two fly height calibrations on a disk media certifier. The first calibration point uses a spin down on bump technique at a first height, and the second calibration point uses a spin down on disk media roughness at a second lower height. With two height data points, a fly height curve of each glide head is approximated very accurately. Once the fly height curve is derived for each head, any fly height can be dialed-in by the disk media certifier for glide testing. This technique achieves glide fly heights between about 4 nm and 8 nm and does so with improved tolerances.
摘要翻译：滑动头校准技术在磁盘介质验证器上使用两个飞行高度校准。第一个校准点在第一个高度上使用一个旋转凹凸技术，第二个校准点在第二个较低高度的磁盘介质粗糙度上使用旋转。使用两个高度数据点，每个滑行头的飞行高度曲线非常准确地近似。一旦为每个头部导出了飞行高度曲线，则可以通过磁盘媒体验证者拨打任何飞行高度进行滑行测试。该技术实现了约4nm和8nm之间的滑翔飞行高度，并且具有改进的公差。

3. 发明授权

US07121133B2 System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights 失效
标题翻译：用于滑坡头校准的系统，方法和装置，具有增强的PZT通道，用于非常低的资格滑行高度
公开(公告)号：US07121133B2
公开(公告)日：2006-10-17
申请号：US10857195
申请日：2004-05-28
申请人： Norman Chu , Shanlin Duan , Patricia Galindo , Hang Fai Ngo , Yu Lo , Nalin Zhou
发明人： Norman Chu , Shanlin Duan , Patricia Galindo , Hang Fai Ngo , Yu Lo , Nalin Zhou
IPC分类号： G01B7/34
CPC分类号： G11B5/6005 , G11B5/455
摘要： A glide head calibration technique uses two fly height calibrations on a disk media certifier. The first calibration point uses a spin down on bump technique at a first height, and the second calibration point uses a spin down on disk media roughness at a second lower height. With two height data points, a fly height curve of each glide head is approximated very accurately. Once the fly height curve is derived for each head, any fly height can be dialed-in by the disk media certifier for glide testing. This technique achieves glide fly heights between about 4 nm and 8 nm and does so with improved tolerances.
摘要翻译：滑动头校准技术在磁盘介质验证器上使用两个飞行高度校准。第一个校准点在第一个高度上使用一个旋转凹凸技术，第二个校准点在第二个较低高度的磁盘介质粗糙度上使用旋转。使用两个高度数据点，每个滑行头的飞行高度曲线非常准确地近似。一旦为每个头部导出了飞行高度曲线，则可以通过磁盘媒体验证者拨打任何飞行高度进行滑行测试。该技术实现了约4nm和8nm之间的滑翔飞行高度，并且具有改进的公差。

4. 发明授权

US07064659B2 Glide testing of disks with calibration confirmation testing by inducing collision of the slider with production disk surface 失效
标题翻译：通过引导滑块与生产磁盘表面的碰撞，通过校准确认测试来滑动测试磁盘
公开(公告)号：US07064659B2
公开(公告)日：2006-06-20
申请号：US10931316
申请日：2004-08-31
申请人： Bradley Frederick Baumgartner , Norman Chu , Patricia Galindo , Hang Fai Ngo , Yu Lo , Nalin Zhou
发明人： Bradley Frederick Baumgartner , Norman Chu , Patricia Galindo , Hang Fai Ngo , Yu Lo , Nalin Zhou
IPC分类号： G08B29/00
CPC分类号： G11B5/455 , G11B5/6005 , G11B5/6076 , G12B13/00 , Y10T29/49069 , Y10T29/49771
摘要： A method is presented for glide testing a disk which tests the glide head fly-height by inducing a collision between the glide head and a disk under test. The glide test system is initially calibrated using calibration disks. The method of the invention periodically tests the calibration without interrupting the production testing by lowering the rotation rate until the glide head collides with the rotating disk surface. The rotation rate at which the collision occurs is then compared with the value expected based on knowledge of disk samples and the initial calibration. Parameters for acceptable high and low values are established to detect changes in the glide test system performance to trigger automatic or manual recalibration.
摘要翻译：提出了一种用于滑行测试的方法，其通过引起滑动头和被测盘之间的碰撞来测试滑翔头飞行高度。滑行测试系统最初使用校准盘校准。本发明的方法通过降低旋转速率来定期测试校准而不中断生产测试，直到滑动头与旋转的盘表面碰撞。然后将碰撞发生的旋转速率与基于磁盘样本知识和初始校准的预期值进行比较。建立可接受的高和低值的参数，以检测滑行测试系统性能的变化，以触发自动或手动重新校准。

5. 发明申请

US20060216614A1 Method of mask making and structure thereof for improving mask ESD immunity 审中-公开
标题翻译：掩模制造方法及其结构，用于提高掩模的ESD抗扰度
公开(公告)号：US20060216614A1
公开(公告)日：2006-09-28
申请号：US11089061
申请日：2005-03-24
申请人： Shyh-Jen Guo , Yu Lo
发明人： Shyh-Jen Guo , Yu Lo
IPC分类号： G03C5/00 , G03F1/00
CPC分类号： G03F1/40 , G03F1/50 , G03F1/62
摘要： A method for fabricating a mask (or reticle) to improve the mask ESD immunity is provided. A substrate having an upper surface is substantially transparent to a selected radiation. A light sensitive layer is formed over the substrate. The light sensitive layer is patterned and etched to form a pattern of openings in the light sensitive layer. The substrate is etched according to the pattern of openings in the light sensitive layer. The light sensitive layer is stripped. An opaque layer is then deposited on the upper surface and in the openings of the patterned substrate. The substrate is planarized by removing excess opaque layer from over the upper surface of the substrate. A pellicle is then mounted outstretched on the upper surface of the substrate.
摘要翻译：提供了制造掩模（或掩模版）以提高掩模ESD抗扰度的方法。具有上表面的基底对所选择的辐射基本上是透明的。在衬底上形成光敏层。对感光层进行图案化和蚀刻，以在光敏层中形成开口图案。根据光敏层中的开口图案蚀刻衬底。剥去光敏层。然后在图案化衬底的上表面和开口中沉积不透明层。通过从衬底的上表面上去除多余的不透明层来平坦化衬底。然后将防护薄膜组件伸出到衬底的上表面上。

6. 发明授权

US08670214B1 Method and system for providing enhanced thermal expansion for hard disk drives 有权
标题翻译：为硬盘驱动器提供增强热膨胀的方法和系统
公开(公告)号：US08670214B1
公开(公告)日：2014-03-11
申请号：US13332241
申请日：2011-12-20
申请人： Neil Knutson , Yu Lo
发明人： Neil Knutson , Yu Lo
IPC分类号： G11B5/127
CPC分类号： G11B5/607 , G11B5/314
摘要： A method and system provide a magnetic read and/or write transducer for use in disk drive. A read transducer has an air-bearing surface (ABS) and includes a read sensor, a nonmagnetic gap, a heater, and an expander. The nonmagnetic gap is adjacent to a portion of the read sensor and has a first coefficient of thermal expansion (CTE). The heater heats a portion of the magnetic read transducer. The expander is adjacent to a portion of the nonmagnetic gap and has a second CTE greater than the first CTE. The write transducer includes a pole, a coil, an insulator adjacent to and for insulating the coil, a heater and an expander. The expander has a CTE greater than the insulator's CTE.
摘要翻译：一种方法和系统提供用于磁盘驱动器的磁读取和/或写入传感器。读取传感器具有空气轴承表面（ABS），并且包括读取传感器，非磁性间隙，加热器和膨胀器。非磁性间隙与读取传感器的一部分相邻并且具有第一热膨胀系数（CTE）。加热器加热磁读取传感器的一部分。膨胀器与非磁性间隙的一部分相邻并且具有大于第一CTE的第二CTE。写传感器包括极，线圈，邻近并用于绝缘线圈的绝缘体，加热器和膨胀器。扩展器的CTE大于绝缘子的CTE。

7. 发明授权

US06526639B2 Method for burnishing hard disks 失效
标题翻译：抛光硬盘的方法
公开(公告)号：US06526639B2
公开(公告)日：2003-03-04
申请号：US09944226
申请日：2001-08-30
申请人： Shanlin Duan , Wei-Ming Lee , Yu Lo
发明人： Shanlin Duan , Wei-Ming Lee , Yu Lo
IPC分类号： B24B3900
CPC分类号： G11B5/84 , Y10T29/47
摘要： The disk burnishing process is conducted with a contact flying burnishing head wherein the leading edge of the burnishing head is disposed above the surface of the disk, while the trailing edge of the burnishing head makes contact with the surface of the disk. The contact flying configuration of the burnishing head is obtained by controlling the rotating disk RPM in conjunction with the burnishing head design characteristics. In the contact flying burnishing process, the burnishing edges of the several burnishing pads of the head are disposed at different heights relative to the disk surface, such that the leading burnishing pad edges are higher than the trailing burnishing pad edges. In this configuration, high asperities are trimmed by the burnishing pads while low asperities are not. Thus, a disk is properly burnished for subsequent hard disk drive performance with a minimum of surface debris being created by the burnishing process.
摘要翻译：磁盘抛光工艺是用接触式飞边抛光头进行的，其中抛光头的前缘设置在盘的表面之上，而抛光头的后缘与盘的表面接触。抛光头的接触飞行构造是通过结合抛光头设计特性来控制旋转盘RPM获得的。在接触飞行抛光过程中，头部的几个抛光垫的抛光边缘相对于磁盘表面，使得引导的抛光焊盘边缘高于后抛光焊盘边缘。在这种配置中，高凹凸被抛光垫修剪，而低凹凸不平。因此，对于随后的硬盘驱动器性能，盘被适当地抛光，并且由抛光过程产生最少的表面碎屑。

8. 发明授权

US08837081B1 Laminated touchdown sensor for hard disk drives 有权
标题翻译：用于硬盘驱动器的层压触地传感器
公开(公告)号：US08837081B1
公开(公告)日：2014-09-16
申请号：US13312107
申请日：2011-12-06
申请人： Chengtao R. Yu , Dehua Han , Ying Hong , Feng Liu , Laurence L. Chen , Zhanjie Li , Zhigang Bai , Yu Lo , Yunfei Ding
发明人： Chengtao R. Yu , Dehua Han , Ying Hong , Feng Liu , Laurence L. Chen , Zhanjie Li , Zhigang Bai , Yu Lo , Yunfei Ding
IPC分类号： G11B5/127
CPC分类号： G11B5/6076
摘要： A method and system provide a touchdown sensor for use in disk drive. The touchdown sensor includes a sensor layer including a plurality of magnetic layers interleaved with at least one nonmagnetic layer. The plurality of magnetic layers are magnetically coupled and single domain. Further, the sensor has a temperature coefficient of resistivity (TCR) of at least 0.15%/° C.
摘要翻译：一种方法和系统提供用于磁盘驱动器的触地传感器。触地传感器包括传感器层，传感器层包括与至少一个非磁性层交错的多个磁性层。多个磁性层是磁耦合的和单一的结构域。此外，传感器的电阻率（TCR）的温度系数至少为0.15％/℃。

9. 发明授权

US06530258B2 Disk drive laser melt bump disk for accurate glide calibration and certification processing 失效
标题翻译：磁盘驱动器激光熔融凸块用于准确滑行校准和认证处理
公开(公告)号：US06530258B2
公开(公告)日：2003-03-11
申请号：US09911147
申请日：2001-07-23
申请人： James Hammond Brannon , Shanlin Duan , Yu Lo
发明人： James Hammond Brannon , Shanlin Duan , Yu Lo
IPC分类号： G01B2130
CPC分类号： G01N3/62 , G01N2203/021 , G01N2203/0623
摘要： A bump disk for accurate glide calibration has a new type of glass laser melt bumps that give the same signal amplitudes as conventional AlMg laser melt bumps for the same bump height. The present invention provides a solution to switch the calibration bumps from AlMg to glass, and can be used in disk manufacturing lines to save 30% on the cost of hard disks from inaccurate glide certification processes. The solution is to trim or burnish away loose and/or high particles on production disks before the glide tests. This additional processing step causes the responses from the glass bumps to become very similar to those of the AlMg bumps, thereby enabling glass and AlMg disks to become materially compatible.
摘要翻译：用于精确滑动校准的凸块具有新型的玻璃激光熔融凸块，其具有与传统的AlMg激光熔融凸块相同的凸起高度的信号幅度。本发明提供了将校准凸块从AlMg切换到玻璃的解决方案，并且可以用于盘制造线中，以从不准确的滑动认证过程中节省30％的硬盘成本。解决方案是在滑行测试之前修剪或抛光生产盘上的松散和/或高颗粒。这种额外的处理步骤使得玻璃凸块的响应变得非常类似于AlMg凸块的响应，从而使玻璃和AlMg磁盘变得与材料相容。

10. 发明授权

US08749920B1 Magnetic recording head with dynamic fly height heating and having thermally controlled pole tip protrusion to control and protect reader element 有权
标题翻译：磁记录头具有动态飞行高度加热，并具有热控极尖突起，用于控制和保护读卡器元件
公开(公告)号：US08749920B1
公开(公告)日：2014-06-10
申请号：US13328688
申请日：2011-12-16
申请人： Neil Knutson , David E. Fowler , Yu Lo
发明人： Neil Knutson , David E. Fowler , Yu Lo
IPC分类号： G11B5/127
CPC分类号： G11B5/6076 , G11B5/1278 , G11B5/607
摘要： A magnetic recording device includes a slider having an air bearing surface (ABS), a leading side, and a trailing side and a head residing on the slider. The head has a first magnetic transducer and a first heater for heating an area proximal to the first magnetic transducer. A first shield (S1) comprising a first material is on the leading side of the first magnetic transducer and a second shield (S2) comprising the first material is on the trailing side of the first magnetic transducer. A first pole (P1) comprising the first material is on the trailing side of the second shield (S2), and the first pole (P1) is between 0.6 micron and 2.0 micron thick; and the second shield (S2) is less than 0.6 micron thick. A hard disk drive includes the magnetic recording device.
摘要翻译：磁记录装置包括具有空气轴承表面（ABS），前侧和后侧的滑块以及位于滑块上的头部。头具有第一磁换能器和用于加热靠近第一磁换能器的区域的第一加热器。包括第一材料的第一屏蔽（S1）位于第一磁换能器的前侧，并且包括第一材料的第二屏蔽（S2）位于第一磁换能器的后侧。包括第一材料的第一极（P1）位于第二屏蔽（S2）的后侧，并且第一极（P1）在0.6微米至2.0微米厚之间; 并且第二屏蔽（S2）小于0.6微米厚。硬盘驱动器包括磁记录装置。

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