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1. 发明授权

US06205002B1 Disk drive with textured slider contact region 失效
标题翻译：带有纹理滑块触点区域的磁盘驱动器
公开(公告)号：US06205002B1
公开(公告)日：2001-03-20
申请号：US08874848
申请日：1997-06-13
申请人： Peter Michael Baumgart , Thomas Allen Gregory , Ulla Vasant Nayak , Thao Anh Nguyen , Michael Luis Ramirez , Andrew Ching Tam , Run-Han Wang
发明人： Peter Michael Baumgart , Thomas Allen Gregory , Ulla Vasant Nayak , Thao Anh Nguyen , Michael Luis Ramirez , Andrew Ching Tam , Run-Han Wang
IPC分类号： G11B582
CPC分类号： G11B5/60 , G11B5/012 , G11B5/54 , G11B5/82 , G11B21/12 , G11B21/22
摘要： A disk drive having a disk with a contact start/stop (CSS) region on which a slider can rest is described. The CSS region is divided into at least three zones with the inner and outer zones having a surface topography which is different from the surface topography of the middle zone. The middle zone of the CSS region may be textured with bumps having a lower average height, a lower average density and/or a different bump diameter. The middle zone may also be left untextured. The slider is maintained over the CSS region during spin up and/or spin down.
摘要翻译：描述了一种具有带触点启动/停止（CSS）区域的磁盘的磁盘驱动器，滑块可以放置在该区域上。 CSS区域被分成至少三个区域，内部和外部区域具有与中间区域的表面形貌不同的表面形貌。 CSS区域的中间区域可以纹理化，具有较低的平均高度，较低的平均密度和/或不同的凸起直径的凸起。中间区域也可能没有纹理。在旋转和/或旋转时，滑块保持在CSS区域上。

2. 发明授权

US5768076A Magnetic recording disk having a laser-textured surface 失效
标题翻译：具有激光纹理表面的磁记录盘
公开(公告)号：US5768076A
公开(公告)日：1998-06-16
申请号：US601887
申请日：1996-02-15
申请人： Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
发明人： Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
IPC分类号： B23K26/00 , G11B5/60 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , G11B5/704
CPC分类号： B23K26/0078 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , G11B5/8404 , G11B5/8408 , G11B5/6011
摘要： A data recording disk having at least part of the data storage surface textured according to a process for creating a "distant bump array" surface texture for reducing stiction. The texturing process uses a tightly focused diode-pumped Nd:YLF or Nd:YVO.sub.4 or other solid-state laser that is pulsed with a 0.3-90 nanosecond pulse train to produce a plurality of distantly-spaced bumps in the disk surface. The bump profile can be selected as a smooth dimple or one with a central protrusion useful for low stiction without close spacing or elevated "roughness". The data-storage region of the disk surface can be textured for low stiction without materially affecting magnetic data storage density.
摘要翻译：一种数据记录盘，其具有至少部分数据存储表面，根据用于创建用于减少静摩擦的“远凸起阵列”表面纹理的处理而纹理化。纹理化处理使用紧密聚焦的二极管泵浦Nd：YLF或Nd：YVO4或其他固体激光器，其用0.3-90纳秒脉冲串脉冲，以在盘表面中产生多个远距离间隔的凸块。凸起轮廓可以选择为平滑的凹坑，也可以选择具有中心凸起的中心凸起，该中心凸起可用于低静压，而没有紧密间隔或升高的“粗糙度”。磁盘表面的数据存储区域可以纹理化以实现低静态，而不会对磁数据存储密度造成重大影响。

3. 发明授权

US06246543B1 Textured data storage disk having a brittle nonmetallic substrate 失效
标题翻译：具有脆性非金属基底的纹理数据存储盘
公开(公告)号：US06246543B1
公开(公告)日：2001-06-12
申请号：US08714831
申请日：1996-09-17
申请人： Peter Michael Baumgart , Wing Pun Leung , Hung Viet Nguyen , Thao Anh Nguyen , Andrew Ching Tam , Anthony Wu
发明人： Peter Michael Baumgart , Wing Pun Leung , Hung Viet Nguyen , Thao Anh Nguyen , Andrew Ching Tam , Anthony Wu
IPC分类号： G11B582
CPC分类号： G11B5/8408 , B23K26/355 , B23K26/40 , B23K2103/16 , B23K2103/52 , C03C23/0025 , G11B5/8404
摘要： A magnetic recording disk with a glass substrate is textured by a process which creates an array of bumps in a magnetic head contact start and stop (CSS) region of the disk. The texturing process uses a laser to provide pulses of predetermined energy fluence on the glass substrate to produce a plurality of raised bumps in the substrate surface, each bump having a surface elevation controllable to within a few nanometers. The bumps are created without unwanted micro-cracking or ejection of surface material by exploiting a narrow operating region below the abrupt thermal shock fluence threshold of the glass substrate. This textured glass substrate provides the magnetic recording disk with improved stiction, wear, coatability and sensor flying height properties.
摘要翻译：具有玻璃基板的磁记录盘通过在磁盘的磁头接触起始和停止（CSS）区域中产生凸起阵列的过程而被纹理化。纹理化处理使用激光器在玻璃基板上提供预定能量注量的脉冲，以在基板表面中产生多个凸起的凸起，每个凸起具有可控制在几纳米内的表面高度。通过利用低于玻璃基板的突然热冲击能量密度阈值的窄工作区域，产生不产生不希望的微裂纹或表面材料喷射的凸块。这种纹理化的玻璃基板为磁记录盘提供了改善的粘性，磨损，涂布性和传感器飞行高度特性。

4. 再颁专利

USRE37145E1 Apparatus for laser texturing disks 有权
标题翻译：用于激光纹理化磁盘的装置
公开(公告)号：USRE37145E1
公开(公告)日：2001-04-24
申请号：US09374758
申请日：1999-08-13
申请人： Michael Barenboim , Peter Michael Baumgart , Peter Paul Chrusch , Benjamin Karni , Pieter J. M. Kerstens , Thao Anh Nguyen , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter Paul Chrusch , Benjamin Karni , Pieter J. M. Kerstens , Thao Anh Nguyen , Hong S. Seing , Andrew Ching Tam
IPC分类号： B23K2600
CPC分类号： G11B23/00 , B23K26/067 , B23K26/0823 , G11B5/6011 , G11B5/82 , G11B5/84 , G11B5/8404
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. In each disk-handling station, a lifter raises each individual disk from the cassette. The individual disk is then transferred to a pick-and-place mechanism, which moves it to a spindle. The spindle spins and translates the disk, so that both sides of the disk are exposed to beams derived from a pulsed laser. The pick-and-place mechanism then returns the disk to the lifter, which lowers it into the cassette pocket from which it was taken. The pick-and-place mechanism simultaneously moves one disk from the lifter to the spindle and another from the spindle to the lifter. While disks are moved by the pick-and-place mechanism of one disk-handling station, a disk in the spindle of the other disk-handling station is exposed to the laser beams.
摘要翻译：例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。在每个磁盘处理站中，升降器从盒中提起每个单独的盘。然后将单个磁盘转移到拾取和放置机构，将其移动到主轴。主轴旋转并平移盘，使得盘的两侧暴露于源自脉冲激光的束。拾取和放置机构然后将磁盘返回到升降器，从而将其降低到从中取出的磁带盒中。拾取和放置机构同时将一个盘从升降器移动到主轴，另一个从主轴移动到升降器。当磁盘通过一个磁盘处理站的拾取和放置机构移动时，另一磁盘处理站的主轴中的磁盘暴露于激光束。

5. 发明授权

US5875084A Magnetic recording disk having protrusions centered in respective depressions 失效
标题翻译：磁记录盘，其具有以相应凹部为中心的凸起
公开(公告)号：US5875084A
公开(公告)日：1999-02-23
申请号：US889348
申请日：1997-07-08
申请人： Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
发明人： Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
IPC分类号： B23K26/00 , G11B5/60 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , G11B5/704
CPC分类号： B23K26/0078 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , G11B5/8404 , G11B5/8408 , G11B5/6011
摘要： A process for creating a "distant bump array" surface texture in a magnetic recording disk for reducing stiction and the disk so textured. The texturing process uses a tightly focused diode-pumped Nd:YLF or Nd:YVO.sub.4 or other solid-state laser that is pulsed with a 0.3-90 nanosecond pulse train to produce a plurality of distantly-spaced bumps in the disk surface. The bump creation process is highly controllable, permitting repeated creation of a preselected bump profile such as a smooth dimple or one with a central protrusion useful for low stiction without close spacing or elevated "roughness". Some bump profiles permit texturing of the data-storage region of the disk surface for low stiction without materially affecting magnetic data storage density.
摘要翻译：用于在磁记录盘中创建“远距离的凸块阵列”表面纹理以减少静摩擦和磁盘的纹理的过程。纹理化处理使用紧密聚焦的二极管泵浦Nd：YLF或Nd：YVO4或其他固体激光器，其用0.3-90纳秒脉冲串脉冲，以在盘表面中产生多个远距离间隔的凸块。凸起创建过程是高度可控的，允许重复地产生预选的凸起轮廓，例如平滑凹坑或具有用于低静摩擦的中心突起的凸起轮廓，而没有紧密间隔或升高的“粗糙度”。一些凸块轮廓允许对磁盘表面的数据存储区域进行纹理化以实现低静态，而不会对磁数据存储密度造成重大影响。

6. 发明授权

US6013336A Procedure employing a diode-pumped laser for controllably texturing a disk surface 失效
标题翻译：采用二极管泵浦激光器可控地纹理化磁盘表面的程序
公开(公告)号：US6013336A
公开(公告)日：2000-01-11
申请号：US4694
申请日：1998-01-08
申请人： Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
发明人： Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
IPC分类号： B23K26/00 , G11B5/60 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , B05D3/06 , B05D5/12
CPC分类号： B23K26/0078 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , G11B5/8404 , G11B5/8408 , G11B5/6011
摘要： A process for creating a "distant bump array" surface texture in a magnetic recording disk for reducing stiction and the disk so textured. The texturing process uses a tightly focused diode-pumped Nd:YLF or Nd:YVO.sub.4 or other solid-state laser that is pulsed with a 0.3-90 nanosecond pulse train to produce a plurality of distantly-spaced bumps in the disk surface. The bump creation process is highly controllable, permitting repeated creation of a preselected bump profile such as a smooth dimple or one with a central protrusion useful for low stiction without close spacing or elevated "roughness". Some bump profiles permit texturing of the data-storage region of the disk surface for low stiction without materially affecting magnetic data storage density.
摘要翻译：用于在磁记录盘中创建“远距离的凸块阵列”表面纹理以减少静摩擦和磁盘的纹理的过程。纹理化处理使用紧密聚焦的二极管泵浦Nd：YLF或Nd：YVO4或其他固体激光器，其用0.3-90纳秒脉冲串脉冲，以在盘表面中产生多个远距离间隔的凸块。凸起创建过程是高度可控的，允许重复地产生预选的凸起轮廓，例如平滑凹坑或具有用于低静摩擦的中心突起的凸起轮廓，而没有紧密间隔或升高的“粗糙度”。一些凸块轮廓允许对磁盘表面的数据存储区域进行纹理化以实现低静态，而不会对磁数据存储密度造成重大影响。

7. 发明授权

US6118632A Magnetic disk stack having laser-bump identifiers on magnetic disks 失效
标题翻译：磁盘堆在磁盘上具有激光凸点标识符
公开(公告)号：US6118632A
公开(公告)日：2000-09-12
申请号：US800097
申请日：1997-02-12
申请人： Thomas Robert Albrecht , Peter Michael Baumgart , Thao Anh Nguyen , Kurt Allen Rubin , Andrew Ching Tam
发明人： Thomas Robert Albrecht , Peter Michael Baumgart , Thao Anh Nguyen , Kurt Allen Rubin , Andrew Ching Tam
IPC分类号： G11B5/00 , G11B5/012 , G11B5/016 , G11B5/09 , G11B5/65 , G11B5/73 , G11B5/738 , G11B5/82 , G11B5/84 , G11B11/10 , G11B13/00 , G11B20/10 , G11B27/11 , G11B27/24
CPC分类号： G11B5/012 , G11B27/11 , G11B27/24 , G11B5/82 , G11B2005/001 , G11B2220/20 , G11B2220/65
摘要： A magnetic disk with nonmagnetic information encoded under, in or above the magnetic layer of the disk is described along with the disk drive using the magnetic disks. The information may be stored as a series of laser-written marks (e.g., bumps, oxidized spots or spots with altered reflectivity) upon the surface(s) of each disk of the disk stack. The set of marks may be a series of laser bumps which serve a dual purpose as a landing zone or contact start/stop (CSS) zone for the slider and as encoded identifying information. During the manufacturing process for disk drives containing the disks, each disk's identifier can be read using outboard equipment such as an HRF tester or by means contained in the drive itself. Each disk identifier can then be stored magnetically in a special region of the hard disk reserved for use by the drive and/or within the flash memory of the hard drive. The drive can then communicate the identifier(s) to a host computer using the conventional communication hardware and firmware. In this way selected information such as the origin, batch number, date of manufacture, serial number, etc. of any disk can be obtained when needed as, for example, as part of failure analysis.
摘要翻译：与使用磁盘的磁盘驱动器一起描述在磁盘的磁性层下面或上方编码的具有非磁性信息的磁盘。信息可以作为一系列激光写入的标记（例如，具有改变的反射率的凸起，氧化点或斑点）存储在盘堆叠的每个盘的表面上。该组标记可以是一系列激光凸块，其作为滑块的着陆区域或接触开始/停止（CSS）区域和作为编码的识别信息的双重目的。在包含磁盘的磁盘驱动器的制造过程中，可以使用诸如HRF测试仪之类的外部设备或驱动器本身包含的方式读取每个磁盘的标识符。然后可以将磁盘的每个标识符磁性地存储在硬盘的特殊区域中，以供驱动器使用和/或在硬盘驱动器的闪存中使用。然后，驱动器可以使用传统的通信硬件和固件将标识符传送到主计算机。以这种方式，当需要时，例如作为故障分析的一部分，可以获得任何盘的原点，批号，制造日期，序列号等所选择的信息。

8. 发明授权

US5689057A Calibration disk with disk bumps for calibrating PZT sliders 失效
标题翻译：校准盘，用于校准PZT滑块
公开(公告)号：US5689057A
公开(公告)日：1997-11-18
申请号：US607753
申请日：1996-02-27
申请人： Peter Michael Baumgart , Karl A. Flechsig , Michael Franklin Lee , Wing P. Leung , Ullal Vasant Nayak , Thao Anh Nguyen , Timothy Christopher O'Sullivan , Andrew Ching Tam
发明人： Peter Michael Baumgart , Karl A. Flechsig , Michael Franklin Lee , Wing P. Leung , Ullal Vasant Nayak , Thao Anh Nguyen , Timothy Christopher O'Sullivan , Andrew Ching Tam
IPC分类号： B23K26/08 , G11B5/82 , G11B5/84 , G11B7/00 , G11B7/08 , G11B33/10 , G01B5/28
CPC分类号： B82Y15/00 , B23K26/0823 , B82Y10/00 , G11B33/10 , G11B5/82 , G11B5/8404 , G11B5/8408 , Y10T29/49995
摘要： Crater shaped bumps are made on a calibration disk which can be used for calibrating a PZT slider, the PZT slider in turn being used for detecting predetermined asperities on a production run magnetic disk. The crater shaped bumps emulate predetermined asperities of production run magnetic disks and especially asperities which are undesirable and would cause the production run disk to be discarded after testing by the PZT slider. Crater shaped bumps which emulate undesirable asperities on current production runs of magnetic disks have a diameter in the range of 10 to 25 .mu.m and a peripheral ridge with a height h.sub.r above a nominal surface of the calibration disk in the range of 75 to 120 nm. Close tolerance crater shaped bumps with this configuration can be made by impinging two or more pulses of laser energy on the same location of a calibration disk. By increasing the number of pulses the height of the peripheral ridge progressively increases. By employing multiple pulses, the height of the peripheral ridge is increased while the diameter of the crater shaped bump stays substantially constant. Further, by employing multiple pulses diameters and heights of crater shaped bumps can be produced with close tolerances within a diameter range of 5 to 20 .mu.m and a height range of 2 to 120 nm. Different arrangements of the crater shaped bumps on a calibration disk are provided for increasing the range of calibration of the PZT slider.
摘要翻译：在可用于校准PZT滑块的校准盘上形成火山口形凸块，PZT滑块又用于检测生产运行磁盘上的预定凹凸。火山口形凸起模拟生产运行磁盘的预定粗糙度，特别是不期望的粗糙度，并且会在PZT滑块测试后导致生产运行盘被丢弃。在当前的磁盘生产运行中模拟不期望的粗糙度的火山口形凸起具有在10至25μm的范围内的直径和在校准盘的标称表面上的高度hr在75至120nm范围内的周边脊。可以通过在校准盘的相同位置上照射激光能量的两个或更多个脉冲来实现具有该配置的紧公差凹坑形状的凸块。通过增加脉冲数，周边脊的高度逐渐增加。通过采用多个脉冲，周边脊的高度增加，而凹坑形凸起的直径基本保持不变。此外，通过使用多个脉冲，可以在5〜20μm的直径范围内和2〜120nm的高度范围内产生具有紧密公差的凹坑形凸起的高度。提供校准盘上的凹坑形突起的不同布置，用于增加PZT滑块的校准范围。

9. 发明授权

US5658475A Apparatus for laser texturing disks 失效
标题翻译：用于激光纹理化磁盘的装置
公开(公告)号：US5658475A
公开(公告)日：1997-08-19
申请号：US613564
申请日：1996-03-11
申请人： Michael Barenboim , Peter Michael Baumgart , Benjamin Karni , Pieter J. M. Kerstens , Thao Anh Nguyen , Hong S. Seing , Andrew Ching Tam , Peter Paul Chrusch
发明人： Michael Barenboim , Peter Michael Baumgart , Benjamin Karni , Pieter J. M. Kerstens , Thao Anh Nguyen , Hong S. Seing , Andrew Ching Tam , Peter Paul Chrusch
IPC分类号： B65G49/07 , B23K26/067 , B23K26/08 , G11B5/60 , G11B5/82 , G11B5/84 , G11B23/00 , B23K26/00
CPC分类号： G11B23/00 , B23K26/067 , B23K26/0823 , G11B5/82 , G11B5/84 , G11B5/8404 , G11B5/6011
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. In each disk-handling station, a lifter raises each individual disk from the cassette. The individual disk is then transferred to a pick-and-place mechanism, which moves it to a spindle. The spindle spins and translates the disk, so that both sides of the disk are exposed to beams derived from a pulsed laser. The pick-and-place mechanism then returns the disk to the lifter, which lowers it into the cassette pocket from which it was taken. The pick-and-place mechanism simultaneously moves one disk from the lifter to the spindle and another from the spindle to the lifter. While disks are moved by the pick-and-place mechanism of one disk-handling station, a disk in the spindle of the other disk-handling station is exposed to the laser beams.
摘要翻译：例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。在每个磁盘处理站中，升降器从盒中提起每个单独的盘。然后将单个磁盘转移到拾取和放置机构，将其移动到主轴。主轴旋转并平移盘，使得盘的两侧暴露于源自脉冲激光的束。拾取和放置机构然后将磁盘返回到升降器，从而将其降低到从中取出的磁带盒中。拾取和放置机构同时将一个盘从升降器移动到主轴，另一个从主轴移动到升降器。当磁盘通过一个磁盘处理站的拾取和放置机构移动时，另一磁盘处理站的主轴中的磁盘暴露于激光束。

10. 发明授权

US5963569A Multiple channel acousto-optic modulators 失效
标题翻译：多声道声光调制器
公开(公告)号：US5963569A
公开(公告)日：1999-10-05
申请号：US825305
申请日：1997-03-28
申请人： Peter Michael Baumgart , James Hammond Brannon , Chie Ching Poon , Andrew Ching Tam
发明人： Peter Michael Baumgart , James Hammond Brannon , Chie Ching Poon , Andrew Ching Tam
IPC分类号： G11B7/085 , G02F1/11 , G11B7/135 , G02F1/33 , H01S3/10
CPC分类号： G02F1/113 , G02F1/332
摘要： A multichannel acousto-optic modulator (MCAOM) is described which uses a crystal with a plurality of mounting faces for acoustic transducers. The mounting faces are oriented so that the acoustic transducers mounted thereon generate acoustic fields which intersect the incident laser beam at a common angle, i.e., the Bragg angle. A two channel MCAOM uses two transducers. Extension to any higher number of channels follows accordingly. Energizing any of the transducers causes a corresponding first order beam to be diffracted out. Since the acoustic field for each transducer intersects the incident beam with a unique orientation, each first order beam is diffracted out on a unique axis. A system utilizing an MCAOM has electronic means for controlling the driving signals to the transducers to control each channel as required by the application. Amplitude and frequency modulation of the driving signals allows the intensity and angle of the beams to be controlled.
摘要翻译：描述了使用具有用于声学换能器的多个安装面的晶体的多声道声光调制器（MCAOM）。安装面被定向成使得安装在其上的声学换能器产生以入射激光束以相同的角度即布拉格角相交的声场。双通道MCAOM使用两个换能器。扩展到任何更多数量的频道都是相应的。激励任何一个换能器使相应的一阶光束被衍射。由于每个传感器的声场以独特的取向与入射光束相交，所以每一个第一阶光束在独特的轴上被衍射。使用MCAOM的系统具有用于控制到换能器的驱动信号的电子装置，以根据应用的要求来控制每个通道。驱动信号的幅度和频率调制允许控制光束的强度和角度。

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