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1.发明授权Thin film disk media using optimum surface orientation to written data tracks 失效薄膜磁盘介质使用最佳表面刮擦方向写入数据轨道
公开(公告)号：US06081411A
公开(公告)日：2000-06-27
申请号：US107036
申请日：1998-06-29
申请人： Paul M. Green , Wai C. Leung
发明人： Paul M. Green , Wai C. Leung
CPC分类号： G11B5/7315 , G11B19/04 , G11B5/82 , G11B5/8404 , G11B5/012
摘要： The hard disk drive manufacturing method of the present invention includes an initial determination of the orientation of the individual hard disks during the various processing steps and disk drive assembly steps. Specifically, the orientation of the hard disks in the assembled disk drive is ascertained, such that the direction of arcuate writing paths on the disk surface is known. Additionally, the orientation of non-random arcuate micro-scratches that appear on the disk surface during disk processing is ascertained. Where the arcuate path of the micro-scratches corresponds to the arcuate writing paths on a disk surface, the disk process is altered to effectively reorient the disk in its mounting in the hard disk drive. The result of the process alteration is that there is no longer a correspondence between the arcuate path of the micro-scratches and the arcuate written data paths, and a significant reduction in the number of defects on the surface of the hard disk is obtained.
摘要翻译： 本发明的硬盘驱动器制造方法包括在各种处理步骤和盘驱动器组装步骤期间对各个硬盘的取向的初始确定。 具体地说，确定组装好的磁盘驱动器中的硬盘的方向，使得磁盘表面上的弓形写入路径的方向是已知的。 此外，确定在盘处理期间出现在盘表面上的非随机弓形微划痕的取向。 在微划痕的弧形路径对应于磁盘表面上的弓形写入路径的情况下，改变磁盘处理以有效地将磁盘重新定位在其在硬盘驱动器中的安装中。 过程改变的结果是，微划痕的弧形路径与弧形写入数据路径之间不再具有对应关系，并且获得了硬盘表面上的缺陷数量的显着减少。
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公开(公告)号：US06357095B1
公开(公告)日：2002-03-19
申请号：US09360477
申请日：1999-07-23
申请人： Shanlin Duan , Wei-Ming Lee , Wai C. Leung
发明人： Shanlin Duan , Wei-Ming Lee , Wai C. Leung
IPC分类号： B24B3900
摘要： The burnishing head for hard disk processing includes a solid body having generally rectangular surfaces, including an upper surface, a burnishing pad surface, a front surface, a rear surface and two side surfaces. A plurality of burnishing pads are disposed upon the burnishing pad surface. The pads are shaped such that each pad has a burnishing edge that is generally parallel to said front surface and therefore orthogonal to the direction of media travel. The burnishing pads are preferably configured such that one frontward leading pad is centrally disposed proximate the front surface of the head, followed by two middle pads that are disposed in a spaced apart relationship. A single centrally disposed rear middle pad is formed behind the two middle pads, and two rear pads are disposed in a spaced apart relationship at the rear surface of the head. In the preferred embodiment the pads are generally triangular in shape and the outer surface of the leading and rearward pads is tapered. The method for manufacturing the burnishing head, includes the steps of making a series of parallel cuts in a surface of a solid body of material. The burnishing pads result from material that remains following the cuts.
摘要翻译： 用于硬盘处理的抛光头包括具有大致矩形表面的固体，其包括上表面，抛光垫表面，前表面，后表面和两个侧表面。 多个抛光垫设置在抛光垫表面上。 焊盘的形状使得每个焊盘具有通常平行于所述前表面并因此正交于介质行进方向的抛光边缘。 抛光垫优选地被配置成使得一个前方的前垫靠近头部的前表面居中设置，随后是以间隔开的关系设置的两个中间垫。 在两个中间垫的后面形成一个居中设置的后中间垫，并且两个后垫在头部的后表面以间隔开的关系设置。 在优选实施例中，焊盘的形状通常为三角形，并且前部和后部焊盘的外表面是锥形的。 抛光头的制造方法包括在固体物质的表面上进行一系列平行切割的步骤。 抛光垫由切割后保留的材料产生。
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公开(公告)号：US5079086A
公开(公告)日：1992-01-07
申请号：US596118
申请日：1990-10-11
IPC分类号： G11B5/708 , C09D5/23 , C09D161/04 , C09D161/06 , C09D163/00 , G11B5/70 , G11B5/702 , G11B5/71 , G11B5/712
CPC分类号： G11B5/71 , G11B5/7013 , G11B5/7028 , Y10S428/90 , Y10T428/257
摘要： The magnetic recording layer of a recording medium contains a film-forming resin, magnetic particles, poly(ethyleneimine), and an amionic surfactant.
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4.发明授权
公开(公告)号：US4873430A
公开(公告)日：1989-10-10
申请号：US262558
申请日：1988-10-25
CPC分类号： G01N21/8422 , G01B11/065 , G01B11/303 , G01N2015/086 , G01N2021/4702 , G01N2021/555 , G01N21/21 , G01N2201/065
摘要： A method for optically measuring at least one characteristic of a thin film on a reflecting substrate. A p-polarized beam of collimated light of known intensity is directed through an integrating sphere onto the film at substantially the Brewster's angle of the film. All the light is reflected into the sphere, including all diffusely reflected light as well as the light specularly reflected at a region inside the sphere where the specularly reflected light is incident. A reflective surface is provided for determining the thickness of the film as a function of the total intensity of light sensed within the sphere. An absorptive surface is provided at said region for absorbing the specularly reflected light for determining the porosity or surface roughness of the film based on the intensity of the diffused light sensed within the sphere not reflected from the substrate.
摘要翻译： 一种用于光学测量反射基板上的薄膜的至少一种特性的方法。 具有已知强度的准直光的p偏振光束以基本上薄膜的布鲁斯特角穿过积分球。 所有的光被反射到球体中，包括所有漫反射光以及在镜面反射光入射的球体内的区域镜面反射的光。 提供反射表面，用于根据在球体内感测的光的总强度来确定膜的厚度。 吸收表面设置在所述区域处，用于吸收镜面反射光，用于基于未从衬底反射的球体内感测到的漫射光的强度确定膜的孔隙率或表面粗糙度。
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5.发明授权公开(公告)号：US06407891B1
公开(公告)日：2002-06-18
申请号：US09317808
申请日：1999-05-24
IPC分类号： G11B539
CPC分类号： G11B5/012 , G11B5/02 , G11B5/17 , G11B5/313 , G11B5/3967 , G11B23/0007
摘要： The present invention is a read/write head for writing information to magnetic media and reading information from magnetic media. It includes a write head for writing information onto magnetic media, a read head for reading information from the magnetic media, and an electrical circuit element that is disposed proximate the read head that functions to generate an electromagnetic field at the read head that is generally oppositely directed to the electromagnetic field generated by the write head. The method for operating the read/write head in a hard disk drive, includes the steps of writing data onto a hard disk, while simultaneously generating an electromagnetic field at the read head that is directed oppositely to the electromagnetic field generated by the write head.
摘要翻译： 本发明是一种用于向磁性介质写入信息并从磁性介质读取信息的读/写头。 它包括用于将信息写入磁性介质的写入头，用于从磁性介质读取信息的读取头，以及设置在读取头附近的电路元件，该电路元件用于在读取头处大致相反地产生电磁场 指向写头产生的电磁场。 用于在硬盘驱动器中操作读/写头的方法包括以下步骤：将数据写入硬盘，同时在读头处产生与写头产生的电磁场相反的电磁场。
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公开(公告)号：US06477008B1
公开(公告)日：2002-11-05
申请号：US09317668
申请日：1999-05-24
IPC分类号： G11B5115
CPC分类号： G11B5/3103 , G11B5/11 , G11B5/3143 , G11B5/3967
摘要： The present invention is a read/write head for writing information to magnetic media and reading information from magnetic media. It includes a write head element for writing information onto magnetic media, a read head element for reading information from the magnetic media, and an electromagnetic field shield element that is disposed between the write head element and the read head element. The shield functions to shield the read head from electromagnetic field energy created by the write head element. An enhanced second embodiment includes an electrical circuit element that is disposed proximate the read head element that functions to generate an electromagnetic field at the read head element that is generally oppositely directed to the electromagnetic field generated by the write head element to reduce the total electromagnetic field that the read head element is exposed to during a writing operation. The method for operating the read/write head in a hard disk drive, includes the steps of writing data onto a hard disk and reading data from the hard disk simultaneously with the data writing. This is accomplished by shielding the read head from the electromagnetic field energy generated during the data writing by utilizing the electromagnetic field shield element that is disposed between the write head element and the said read head element. The electrical circuit element of the second embodiment is preferably interconnected with the write head electric circuit.
摘要翻译： 本发明是一种用于向磁性介质写入信息并从磁性介质读取信息的读/写头。 它包括用于将信息写入磁介质的写入头元件，用于从磁性介质读取信息的读取头元件以及设置在写入头元件和读取头元件之间的电磁场屏蔽元件。 屏蔽功能用于屏蔽读取头与写入头元件产生的电磁场能量。 增强的第二实施例包括设置在读头元件附近的电路元件，其功能是在读头元件处产生电磁场，该磁头元件通常与写头元件产生的电磁场相反地指向以减小总电磁场 读写头元件在写操作期间被暴露。 用于在硬盘驱动器中操作读/写头的方法包括以下步骤：将数据写入硬盘并且与数据写入同时从硬盘读取数据。 这是通过利用设置在写头元件和所述读头元件之间的电磁场屏蔽元件来屏蔽读头从数据写入期间产生的电磁场能量。 第二实施例的电路元件优选地与写入头电路互连。
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公开(公告)号：US06330122B1
公开(公告)日：2001-12-11
申请号：US09317664
申请日：1999-05-24
IPC分类号： G11B2736
CPC分类号： G11B27/36 , G01R33/1207 , G11B5/012 , G11B5/4886 , G11B20/1816 , G11B2005/001 , G11B2220/20
摘要： The hard disk testing and certifying device of the present invention includes a spin stand to rotate a disk to be tested. A single read/write head, including both a write head and a read head is mounted upon an armature which movably supports the read/write head. The device includes a computerized control system and signal processing system that provides write signals to the write head and receives and processes read head signals from the read head. In the preferred embodiment the read/write head simultaneously provides write signals to the disk and receives read signals from the disk. Preferably, the read/write head functions continually and the certification testing is conducted utilizing a spiral path. In the preferred read/write head the read head is disposed behind the write head and an electromagnetic field shield is disposed between them to reduce electromagnetic field interference between the write head and the read head during simultaneous operation. The read/write head may also include an electromagnetic field interference element to further reduce signal interference at the read head.
摘要翻译： 本发明的硬盘测试和认证装置包括旋转待测试盘的旋转架。 包括写入头和读取头的单个读/写头安装在可移动地支撑读/写头的电枢上。 该装置包括计算机控制系统和信号处理系统，其向写入头提供写入信号，并从读取头接收并处理读取头信号。 在优选实施例中，读/写头同时向盘提供写信号并从盘接收读信号。 优选地，读/写头连续工作，并且使用螺旋路径进行认证测试。 在优选的读/写头中，读头设置在写头后面，电磁场屏蔽设置在它们之间，以在同时操作期间减小写头和读头之间的电磁场干扰。 读/写头还可以包括电磁场干扰元件，以进一步减少读头的信号干扰。
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