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1. 发明授权

US06497021B2 Method and apparatus for providing a low cost contact burnish slider 失效
标题翻译：用于提供低成本接触抛光滑块的方法和装置
公开(公告)号：US06497021B2
公开(公告)日：2002-12-24
申请号：US09231424
申请日：1999-01-14
申请人： Francis Chee-Shuen Lee , Michael Lee McGhee , Salvador Navarro , Ullal Vasant Nayak , Hang Fai Ngo
发明人： Francis Chee-Shuen Lee , Michael Lee McGhee , Salvador Navarro , Ullal Vasant Nayak , Hang Fai Ngo
IPC分类号： B24B3900
CPC分类号： B24B37/048 , B24B39/06 , G11B5/8404 , Y10S977/70 , Y10S977/84 , Y10T29/47
摘要： A method and apparatus for providing a low cost contact burnish slider is disclosed that can remain in contact or at the initial low flying heights even as the pad surfaces and leading edges wear. The burnish slider includes a body having a leading edge and a trailing edge and an air bearing surface being configured at the leading edge of the body to cut disk asperities as the slider flies and configured away from the leading edge to maintain a flying attitude wherein the leading edge is near the data recording surface and to provide restoring forces to maintain the flying attitude. The air bearing surface may include a front pad proximal to the leading edge and a rear pad distal to the leading edge. Alternatively, the air bearing surface may include two front pads proximal to the leading edge on opposite sides of the body and two rear pads distal to the leading edge and disposed on opposite sides of the body. The front and rear pad(s) extends substantially across the body of the slider. An offset pivot is provided for constraining the moment balance of the slider to provide a low pitch flying attitude. The rear pad(s) further includes a mechanical taper proximal to the trailing edge to minimize load/unload damage. The air bearing surface configuration away from the leading edge provides a force that restores the flying attitude to the slider when an impulse lifting the leading edge is encountered.
摘要翻译：公开了一种用于提供低成本接触抛光滑块的方法和装置，即使在焊盘表面和前缘磨损时也可以保持接触或初始低飞行高度。抛光滑块包括具有前缘和后缘的主体，并且空气支承表面构造在主体的前缘处，以在滑块从远离前边缘的方向飞行并构造成保持飞行姿态时切割圆盘凹凸，以保持飞行姿态，其中，前沿靠近数据记录表面，并提供恢复力以保持飞行姿态。空气轴承表面可以包括靠近前缘的前垫和远离前缘的后垫。或者，空气轴承表面可以包括靠近主体的相对侧上的前缘的两个前垫，以及远离前缘的两个后垫，并且设置在主体的相对侧上。前垫和后垫基本上延伸穿过滑块的主体。提供了一个偏移枢轴，用于限制滑块的力矩平衡以提供低俯仰飞行姿态。后垫还包括靠近后缘的机械锥形，以最小化负载/卸载损坏。当引起提升前缘的脉冲时，空气轴承表面配置远离前缘提供了一种力，可以将飞行姿态恢复到滑块。

2. 发明授权

US07164557B2 Apparatus for burnishing small asperities and cleaning loose particles from magnetic recording media 失效
标题翻译：用于抛光小凹凸并从磁记录介质清除松散颗粒的装置
公开(公告)号：US07164557B2
公开(公告)日：2007-01-16
申请号：US10784506
申请日：2004-02-23
申请人： Parul Agrawal , Hang Fai Ngo , Charles Lee , Li-Chung Lee , Ullal Vasant Nayak , Stephen Olson , Robert N. Payne , Christopher Ramm
发明人： Parul Agrawal , Hang Fai Ngo , Charles Lee , Li-Chung Lee , Ullal Vasant Nayak , Stephen Olson , Robert N. Payne , Christopher Ramm
IPC分类号： G11B5/60
CPC分类号： G11B5/6005
摘要： An air bearing burnish slider burnishes very small asperities and cleans the loose particles that adhere to the magnetic recording media. The slider applies a controllable contact force to effectively burnish disk asperities or partially attached particles. In addition, the slider cleans the loose particles effectively while flying in a stable fashion. In a low pitch design, diagonal rails push particles away from the disk surface and trailing edge pads contact the disk at lower linear velocities. Rail pads retain loose contamination and debris in their pockets and burnish asperities. Another design provides a milder burnish force and flies in a high pitch configuration. The trailing edge pads provide stable contacts and the rails help in sweeping away debris. In both designs, the contact forces can be controlled by adjusting linear velocities. A step taper at the leading edge provides a pitch-producing lift force.
摘要翻译：空气轴承抛光滑块抛光非常小的凹凸，并清洁附着在磁记录介质上的松散颗粒。滑块应用可控的接触力来有效地抛光磁盘粗糙度或部分附着的颗粒。此外，滑块可以以稳定的方式有效地清洁松散的颗粒。在低间距设计中，斜轨将颗粒推离盘表面，后缘垫以较低的线速度接触盘。轨道垫在其口袋中保持松散的污染和碎屑，并且消除粗糙。另一种设计提供更温和的抛光力并以高间距配置飞行。后缘垫提供稳定的触点，导轨有助于扫除碎屑。在这两种设计中，接触力可以通过调整线性速度来控制。在前缘的阶梯锥形提供产生俯仰的提升力。

3. 发明授权

US06771453B2 Glide slider fly height calibration method using disk spin down and slider dynamic scan 失效
标题翻译：滑动滑块飞行高度校准方法使用磁盘旋转和滑块动态扫描
公开(公告)号：US06771453B2
公开(公告)日：2004-08-03
申请号：US10011474
申请日：2001-11-05
申请人： Bradley Frederick Baumgartner , An-Chou Andrew Chen , Norman H. Chu , Shanlin Duan , Patricia Galindo , Roger Yu Lo , Connie H. Moy , Hang Fai Ngo
发明人： Bradley Frederick Baumgartner , An-Chou Andrew Chen , Norman H. Chu , Shanlin Duan , Patricia Galindo , Roger Yu Lo , Connie H. Moy , Hang Fai Ngo
IPC分类号： G11B2102
CPC分类号： G11B5/5521 , G11B5/60 , G11B33/10
摘要： A calibration method for determining the flying height of a glide slider for disk glide height testing is disclosed. The method utilizes a disk with bumps in situ on a disk glide height tester. The method automatically takes into account disk topography, mounting tolerances, and slider roll.
摘要翻译：公开了一种用于确定用于盘滑动高度测试的滑动滑块的飞行高度的校准方法。该方法在磁盘滑移高度测试仪上利用具有凸起的盘。该方法自动考虑到磁盘形状，安装公差和滑块滚动。

4. 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。

5. 发明授权

US06567240B2 Disk drive platter using sputter shadows thereon for determining orientation thereof 失效
标题翻译：磁盘驱动盘在其上使用溅射阴影来确定其取向
公开(公告)号：US06567240B2
公开(公告)日：2003-05-20
申请号：US09793236
申请日：2001-02-26
申请人： Bradley Frederick Baumgartner , Andrew John Buhler , Erich Chuh , Hang Fai Ngo , Alma Lujan Ortega-Avery , Bob C. Robinson , Song How Wong-Jessel , Elmer Tyree York
发明人： Bradley Frederick Baumgartner , Andrew John Buhler , Erich Chuh , Hang Fai Ngo , Alma Lujan Ortega-Avery , Bob C. Robinson , Song How Wong-Jessel , Elmer Tyree York
IPC分类号： G11B582
CPC分类号： G11B5/82
摘要： A disk for a disk drive uses a circular platter having first and second sides and a circumferential edge. The circumferential edge of the disk has four symmetrically spaced apart shadows and a fifth or additional shadow that gives the disk an asymmetrical shadow signature. The fifth shadow is offset relative to the other shadows, which have congruent arcuate lengths and separation. The fifth shadow has an arcuate length that is about half as long as those of the other shadows, and is closely spaced adjacent to one of the other shadows. The asymmetric shadow signatures of the disk is used to precisely determine both the circumferential position of the platters and their planar orientation (i.e., A-side or B-side). For example, when the disk is mounted on a tool spindle and rotated, an optical detector detects the pattern of the shadows and feeds the data to a computer system. The rotational position of the spindle also is relayed to the computer for coordinating the processing of the rotating disk. When the disk is mounted on a different tool, the same shadow signature is used to determine its planar and angular positions.
摘要翻译：用于磁盘驱动器的磁盘使用具有第一和第二侧面以及周缘的圆盘。盘的圆周边缘具有四个对称间隔开的阴影和第五或另外的阴影，其给予盘不对称的阴影签名。第五个阴影相对于其他阴影是偏移的，它们具有一致的弓形长度和分离距离。第五个阴影具有的弓形长度大约是其他阴影的一半长度，并且与其他阴影之一紧密相隔。磁盘的非对称阴影签名用于精确地确定盘片的圆周位置及其平面取向（即A侧或B侧）。例如，当盘安装在工具主轴上并旋转时，光学检测器检测阴影的图案并将数据馈送到计算机系统。主轴的旋转位置也被中继到计算机，用于协调旋转盘的处理。当磁盘安装在不同的工具上时，使用相同的阴影签名来确定其平面和角位置。

6. 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。

7. 发明授权

US06662623B2 Apparatus and method for glide height calibration of disk surfaces by use of dual-zone laser texture 失效
标题翻译：使用双区域激光纹理的盘表面滑移高度校准的装置和方法
公开(公告)号：US06662623B2
公开(公告)日：2003-12-16
申请号：US09957291
申请日：2001-09-20
申请人： Bradley Frederick Baumgartner , James Hammond Brannon , Jorge Daniel Colonia , Huyen D. Do , Shanlin Duan , Connie H. Moy , Hang Fai Ngo , Yu Lo
发明人： Bradley Frederick Baumgartner , James Hammond Brannon , Jorge Daniel Colonia , Huyen D. Do , Shanlin Duan , Connie H. Moy , Hang Fai Ngo , Yu Lo
IPC分类号： G11B582
CPC分类号： G01B11/14 , G11B23/0021 , G11B33/10 , Y10S977/881 , Y10S977/932
摘要： A disk for calibrating glide heads utilizes a dual-zone configuration of multiple laser melt bumps having selected heights. Averaging the PZT response over many bumps significantly narrows the response distribution, resulting in greater certainty and correlation of the PZT amplitude to bump height. The multiple calibration bumps are circumferentially arranged on a disk surface at a selected radius in a ring-like manner. A second head cleaning zone is provided near the inner diameter of the disk to provide for increased reproducibility of the PZT calibration response. The second zone is densely textured and serves to clean the glide head prior to its use in the calibration zone.
摘要翻译：用于校准滑行头的盘利用具有选定高度的多个激光熔融凸块的双区配置。在许多凸起上平均PZT响应显着缩小了响应分布，导致PZT振幅与凸块高度的更大的确定性和相关性。多个校准凸块以环状方式周向地布置在选定半径的盘表面上。在盘的内径附近提供第二头清洁区，以提供PZT校准响应的增加的再现性。第二个区域是密集纹理的，用于在使用前在校准区域清洁滑动头。

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