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1. 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。

2. 发明授权

US5981903A Laser system for simultaneous texturing of two sides of a substrate 失效
标题翻译：激光系统，用于同时纹理化两面基片
公开(公告)号：US5981903A
公开(公告)日：1999-11-09
申请号：US825307
申请日：1997-03-28
申请人： Peter Michael Baumgart , James Hammond Brannon , Chie Ching Poon , Iraj Kakesh Pour , Andrew Ching Tam
发明人： Peter Michael Baumgart , James Hammond Brannon , Chie Ching Poon , Iraj Kakesh Pour , Andrew Ching Tam
IPC分类号： G02F1/11 , G02F1/33 , G11B5/84 , G11B7/085 , G11B7/135 , B23K26/00
CPC分类号： G11B5/84 , G02F1/113 , G02F1/332
摘要： A laser system is described which concurrently directs highly equivalent diffracted beams derived from an initial laser beam to both sides of a substrate. The diffracted beams may be generated with sufficient energy to soften spots on the surfaces of the substrate to form texture bumps as are used on substrates for magnetic disks. The diffracted beams are generated by a multichannel acousto-optic modulator (MCAOM) having at least two channels. The crystal in the MCAOM has at least two mounting faces 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. Energizing any of the transducers causes a corresponding first order beam to be diffracted out. Preferably the diffracted beams are generated by alternating driving signals to transducers to produce two beams with pulse intensity greater than 50% of that of the incident beam which can be directed to opposite sides of a substrate for extremely uniform texturing.
摘要翻译：描述了激光系统，其同时将从初始激光束衍生的高等效衍射光束引导到衬底的两侧。可以用足够的能量产生衍射光束以软化基板表面上的光斑，以形成如用于磁盘的基板上的纹理凸起。衍射光束由具有至少两个通道的多通道声光调制器（MCAOM）产生。 MCAOM中的晶体具有定向的至少两个安装面，使得安装在其上的声学换能器以共同的角度即布拉格角产生与入射激光束相交的声场。激励任何一个换能器使相应的一阶光束被衍射。优选地，衍射光束通过交替的驱动信号产生到换能器以产生具有大于入射光束的50％的脉冲强度的两个光束，该光束可以被引导到基板的相对两侧以进行非常均匀的纹理化。

3. 发明授权

US06388229B1 Method for laser texturing magnetic recording disk 失效
标题翻译：激光纹理磁记录盘的方法
公开(公告)号：US06388229B1
公开(公告)日：2002-05-14
申请号：US09374549
申请日：1999-08-13
申请人： Peter Michael Baumgart , James Hammond Brannon , Tim Minvielle , Iraj Kakesh Pour , Timothy Carl Strand
发明人： Peter Michael Baumgart , James Hammond Brannon , Tim Minvielle , Iraj Kakesh Pour , Timothy Carl Strand
IPC分类号： B23K2604
CPC分类号： G11B5/8404 , B23K26/0342 , B23K26/355 , G11B5/82
摘要： A method for controlling the laser texturing of a magnetic disk by using a texturing laser system to create texturing bumps and an analyzing laser system to determine texture bump height and to provide feedback to the texturing laser system. From an angular distribution of an array of diffracted light intensities of the texturing bumps, the intensity of a first diffraction peak (Int1) and its array position (P1) are determined and utilized to calculate the average bump height h according to the equation: h=A/P1+B(Int1)+C where A, B and C are constants that are determined for a batch of disks by taking a representative sample of disks and texturing them with differing laser energies within the energy level range.
摘要翻译：一种通过使用纹理化激光系统来产生纹理凸起来控制磁盘的激光纹理化的方法，以及分析激光系统以确定纹理凸起高度并向纹理化激光系统提供反馈的方法。根据纹理凸起的衍射光强度阵列的角度分布，确定第一衍射峰（Int1）及其阵列位置（P1）的强度并利用其根据以下等式来计算平均凸起高度h：其中 A，B和C是通过采取代表性的磁盘样本并在能级范围内以不同的激光能量进行纹理化来确定一批磁盘的常数。

4. 发明授权

US6059555A Optical apparatus for dual-beam laser texturing 失效
标题翻译：双光束激光纹理光学装置
公开(公告)号：US6059555A
公开(公告)日：2000-05-09
申请号：US707383
申请日：1996-09-04
申请人： Michael Barenboim , Peter Michael Baumgart , Peter B. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Doug John Krajnovich , Iraj Kahkesh Pour , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter B. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Doug John Krajnovich , Iraj Kahkesh Pour , Hong S. Seing , Andrew Ching Tam
IPC分类号： C04B41/80 , C03C23/00 , G11B5/84
CPC分类号： G11B5/8404 , Y10S425/81
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. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately equal power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power control optics block includes means for attenuating and measuring each of the two beams. A shuttling mirror directs these two beams alternately at a disk within each of the two disk handling stations.
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。光学系统包括指向分束器的激光器，以将激光束分成具有大致相等功率的两个光束，所述光束具有大致相等的功率，这些光束沿着平行路径通过功率控制光学块，以同时暴露于待纹理的光盘的相对侧。功率控制光学块包括用于衰减和测量两个光束中的每一个的装置。穿梭镜将两个光束交替地引导到两个光盘处理站的每一个中的盘上。

5. 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。

6. 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。

7. 发明授权

US5699160A Optical apparatus for inspecting laser texture 失效
标题翻译：用于检查激光纹理的光学装置
公开(公告)号：US5699160A
公开(公告)日：1997-12-16
申请号：US710806
申请日：1996-09-23
申请人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Michael Gerard Lisanke , Hong S. Seing , Huizong Lu , Lanphuong Thi Pena , Ali Reza Taheri , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter P. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Michael Gerard Lisanke , Hong S. Seing , Huizong Lu , Lanphuong Thi Pena , Ali Reza Taheri , Andrew Ching Tam
IPC分类号： G01B9/02 , G01B11/22 , G11B5/84
CPC分类号： G01B9/02019 , G01B11/22 , G01B9/02057 , G11B5/8404 , G01B2290/45 , G01B2290/70
摘要： Inspection apparatus for determining the profile of textured spots extending in a pattern along a surface of a magnetic disk includes an interferometer which illuminates first and second, adjacently disposed test spots on the surface. The disk and the interferometer are moved, relative to one another, so that one of the test spots traverses the textured spots in the pattern while the other test spot is moved along a flat portion of the disk surface. In one embodiment, the inspection apparatus is built into the device forming the textured spots, providing feedback controlling the texturing process.
摘要翻译：用于确定沿着磁盘表面沿图案延伸的纹理斑点的轮廓的检查装置包括：照射第一和第二相邻设置在表面上的测试点的干涉仪。盘和干涉仪相对于彼此移动，使得一个测试点在图案中穿过纹理斑点，而另一个测试点沿着盘表面的平坦部分移动。在一个实施例中，检查装置内置在形成纹理斑点的装置中，提供控制纹理化工艺的反馈。

8. 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。

9. 发明授权

US5951891A Optical apparatus for monitoring profiles of textured spots during a disk texturing process 失效
标题翻译：用于在磁盘纹理化过程中监测纹理斑点的轮廓的光学装置
公开(公告)号：US5951891A
公开(公告)日：1999-09-14
申请号：US823273
申请日：1997-03-24
申请人： Michael Barenboim , Peter Michael Baumgart , Pieter J. M. Kerstens , Huizong Lu , Iraj Kahkesh Pour , Eric Von Schnetzer , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Pieter J. M. Kerstens , Huizong Lu , Iraj Kahkesh Pour , Eric Von Schnetzer , Hong S. Seing , Andrew Ching Tam
IPC分类号： B23K26/00 , B23K26/03 , B23K26/067 , B23K26/08 , G01B11/30
CPC分类号： B23K26/0084 , B23K26/032 , B23K26/0619 , B23K26/0643 , B23K26/0648 , B23K26/0652 , B23K26/066 , B23K26/067 , B23K26/0823
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. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately equal power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. A visible laser beam is also directed along this optical system to an inspection spot on each side of the disk, by which a central portion of each textured spots passes. A beam angle detector detects deflection of a reflection of the inspection beam from this spot in the direction of motion of the disk at this spot. This deflection provides a measure of the topography of the spot.
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。光学系统包括指向分束器的激光器，以将激光束分成具有大致相等功率的两个光束，所述光束具有大致相等的功率，这些光束沿着平行路径通过功率控制光学块，以同时暴露于待纹理的光盘的相对侧。可见光激光束也沿着该光学系统引导到盘的每侧的检查点，每个纹理斑点的中心部分通过该检查点。光束角检测器检测来自该光点的检查光束在该光点处的盘的运动方向上的偏转。该偏转提供了斑点的形貌的度量。

10. 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。

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