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    Calibration disk with disk bumps for calibrating PZT sliders
    22.
    发明授权
    Calibration disk with disk bumps for calibrating PZT sliders 失效
    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。

    Apparatus for laser texturing disks
    23.
    发明授权
    Apparatus for laser texturing disks 失效
    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。

    System for controlling contact location during TFC touchdown and methods thereof
    24.
    发明授权
    System for controlling contact location during TFC touchdown and methods thereof 有权
    在TFC着陆期间控制接触位置的系统及其方法

    公开(公告)号：US08149541B2

    公开(公告)日：2012-04-03

    申请号：US12253459

    申请日：2008-10-17

    申请人： Peter Michael Baumgart ,  Jia-Yang Juang ,  Gurinder Pal Singh

    发明人： Peter Michael Baumgart ,  Jia-Yang Juang ,  Gurinder Pal Singh

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/6064

    摘要： A system according to one embodiment includes a thin film stack having a magnetic transducer and a contact pad; and a heater in the thin film stack for inducing thermal protrusion of a media-facing side of the thin film stack, wherein the thin film stack is characterized by the contact pad protruding farther than the magnetic transducer upon the thin film stack being heated by the heater. A method for calibrating a protrusion of a magnetic head includes increasing a thermal protrusion of a magnetic head to induce head-medium contact; determining that the head has contacted the medium, wherein a portion of the head that contacts the medium is a contact pad or overcoat of the contact pad; determining parameters for inducing a desired amount of protrusion based in part on the determination that the head has contacted the medium; and storing the parameters.

    摘要翻译： 根据一个实施例的系统包括具有磁换能器和接触垫的薄膜叠层; 以及薄膜堆叠中的用于引起薄膜叠层的面向介质侧的热突起的加热器，其中所述薄膜叠层的特征在于，所述接触垫在所述薄膜叠层被所述薄膜叠层加热时比所述磁性换能器更远地突出 加热器。 用于校准磁头的突起的方法包括增加磁头的热突起以引起头 - 介质接触; 确定所述头已经接触所述介质，其中所述头部与所述介质接触的部分是所述接触垫的接触垫或外涂层; 确定用于诱导期望量的突起的参数，部分地基于头部已经接触介质的确定; 并存储参数。

    SYSTEM FOR CONTROLLING CONTACT LOCATION DURING TFC TOUCHDOWN AND METHODS THEREOF
    25.
    发明申请
    SYSTEM FOR CONTROLLING CONTACT LOCATION DURING TFC TOUCHDOWN AND METHODS THEREOF 有权
    用于在TFC触摸屏期间控制接触位置的系统及其方法

    公开(公告)号：US20100097721A1

    公开(公告)日：2010-04-22

    申请号：US12253459

    申请日：2008-10-17

    申请人： Peter Michael Baumgart ,  Jia-Yang Juang ,  Gurinder Pal Singh

    发明人： Peter Michael Baumgart ,  Jia-Yang Juang ,  Gurinder Pal Singh

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/6064

    摘要： A system according to one embodiment includes a thin film stack having a magnetic transducer and a contact pad; and a heater in the thin film stack for inducing thermal protrusion of a media-facing side of the thin film stack, wherein the thin film stack is characterized by the contact pad protruding farther than the magnetic transducer upon the thin film stack being heated by the heater. A method for calibrating a protrusion of a magnetic head includes increasing a thermal protrusion of a magnetic head to induce head-medium contact; determining that the head has contacted the medium, wherein a portion of the head that contacts the medium is a contact pad or overcoat of the contact pad; determining parameters for inducing a desired amount of protrusion based in part on the determination that the head has contacted the medium; and storing the parameters.

    摘要翻译： 根据一个实施例的系统包括具有磁换能器和接触垫的薄膜叠层; 以及薄膜堆叠中的用于引起薄膜叠层的面向介质侧的热突起的加热器，其中所述薄膜叠层的特征在于，所述接触垫在所述薄膜叠层被所述薄膜叠层加热时比所述磁性换能器更远地突出 加热器。 用于校准磁头的突起的方法包括增加磁头的热突起以引起头 - 介质接触; 确定所述头已经接触所述介质，其中所述头部与所述介质接触的部分是所述接触垫的接触垫或外涂层; 确定用于诱导期望量的突起的参数，部分地基于头部已经接触介质的确定; 并存储参数。

    Textured data storage disk having a brittle nonmetallic substrate
    27.
    发明授权
    Textured data storage disk having a brittle nonmetallic substrate 失效
    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。

    Apparatus for laser texturing disks
    28.
    再颁专利
    Apparatus for laser texturing disks 有权
    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。

    Magnetic recording disk having protrusions centered in respective depressions
    30.
    发明授权
    Magnetic recording disk having protrusions centered in respective depressions 失效
    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。