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公开(公告)号：US5574604A
公开(公告)日：1996-11-12
申请号：US416938
申请日：1995-04-04
申请人： Lowell J. Berg , Zine-Eddine Boutaghou , Thomas S. Larson , Dallas W. Meyer , Jay M. Mosbrucker , Jerry L. Neubauer , Hal H. Ottesen
发明人： Lowell J. Berg , Zine-Eddine Boutaghou , Thomas S. Larson , Dallas W. Meyer , Jay M. Mosbrucker , Jerry L. Neubauer , Hal H. Ottesen
CPC分类号： G11B5/54
摘要： A load/unload device to remove the slider from the proximity of the magnetic recording surface of a disk in a disk drive whenever the disk is to be stopped. The load/unload device is a ramp-like wedge which extends generally radially from the center of the magnetic disk and to the magnetic recording surface of the magnetic disk. When the slider is moved toward the center of the disk by an actuator mechanism, the end of the load arm supporting the slider, referred to as a tang, will engage the inclined plane of the wedge and lift the slider from the surface of the magnetic disk as the slider is translated closer to the center of the disk. Once the slider has been removed from close proximity of the disk, the tang may engage a trough-like surface on the structure supporting the wedge and will effectively detent the position of the slider through the forces exerted on the tang by the load beam of the actuator. Thus the disk will be protected from undesirable and damaging impacts of the slider against the magnetic recording surface of the disk thereby prolonging disk utility.
摘要翻译： 每当磁盘停止时，装载/卸载装置从磁盘驱动器中磁盘的磁记录表面的附近移除滑块。 装载/卸载装置是从磁盘的中心大致径向延伸到磁盘的磁记录表面的斜坡形楔形物。 当滑块通过致动器机构朝向盘的中心移动时，支撑滑块的负载臂的端部（被称为柄脚）将接合楔形物的倾斜平面并且从磁体的表面提起滑块 磁盘作为滑块更靠近磁盘的中心。 一旦滑块从盘的紧密附近被移除，则柄脚可以接合支撑楔的结构上的槽形表面，并且将有效地通过施加在柄脚上的作用力来使滑块的位置通过 执行器。 因此，该盘将被保护免受滑块抵靠磁盘的磁记录表面的不利影响，从而延长磁盘的使用效率。
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公开(公告)号：US5455723A
公开(公告)日：1995-10-03
申请号：US252667
申请日：1994-06-02
摘要： Disclosed is a disk drive having at least one disk for storing data. The disk drive includes at least one transducer for reading or writing data to or from the disk. The transducer is attached to an actuator which positions the transducer with respect to the disk. The actuator includes a controllable motor which is used to move the actuator and the transducer attached thereto. The disk drive also includes a ramp for off loading the transducer or for parking the transducer off of the surface of the disk. Also disclosed is apparatus and methods for measuring and controlling the movement of the actuator and attached transducer while the transducer is coming from a position off of the ramp and onto the surface of the disk.
摘要翻译： 公开了一种具有至少一个用于存储数据的盘的磁盘驱动器。 磁盘驱动器包括至少一个读取或写入数据到磁盘的传感器。 传感器连接到将换能器相对于盘定位的致动器。 致动器包括可控马达，其用于移动致动器和连接到其上的换能器。 磁盘驱动器还包括用于卸载换能器或将换能器从盘的表面停放的斜坡。 还公开了一种装置和方法，用于测量和控制致动器和连接的换能器的运动，同时换能器来自斜坡的位置并且到达盘的表面。
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公开(公告)号：US5633767A
公开(公告)日：1997-05-27
申请号：US469253
申请日：1995-06-06
CPC分类号： G11B5/54 , G11B19/04 , G11B20/1816 , G11B20/1879 , G11B21/12 , G11B21/22
摘要： The present invention overcomes the problems that accompany the use of ramps to load and unload transducer carrying sliders in rigid magnetic disk data storage devices. The tracks in the region where the slider loads and unloads are read and the errors recorded following each slider loading operation. One technique is to track the error increase and identify imminent device failure when the rate of error increase during a given number of the most recent slider load cycles exceeds a threshold value. In another mode, a dedicated sequence of tracks is recorded at an increased linear density to assure that read errors occur to enable a more effective comparative evaluation. This makes possible a two stage evaluation, a first threshold number of errors indicative of degrading performance which initiates lower actuator velocity to inhibit further degradation and a second threshold error quantity that indicates imminent catastrophic failure and triggers a warning to the system user. To make the analysis more meaningful, certain errors may be ignored, such as simpler errors or the full number of errors in a cluster that may be the result of a single event.
摘要翻译： 本发明克服了使用斜坡在刚性磁盘数据存储装置中装载和卸载传感器携带滑块的问题。 读取滑块加载和卸载的区域中的轨迹，并在每个滑块加载操作之后记录错误。 一种技术是在给定数量的最近的滑块加载循环中的错误增加率超过阈值时跟踪错误增加并识别即将发生的设备故障。 在另一种模式中，以增加的线性密度记录专用的磁道序列，以确保发生读取错误以实现更有效的比较评估。 这使得可以进行两阶段评估，指示降级性能的第一阈值数量的错误，其启动较低的致动器速度以抑制进一步劣化，以及指示即将发生的灾难性故障并触发对系统用户的警告的第二阈值误差量。 为了使分析更有意义，可能会忽略某些错误，例如可能是单个事件的结果的更简单的错误或集群中的完整数量的错误。
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公开(公告)号：US5521778A
公开(公告)日：1996-05-28
申请号：US298509
申请日：1994-08-30
CPC分类号： G11B5/5521 , G11B5/4873 , G11B5/5552
摘要： A secondary actuator for increased positional resolution of a read/write head for a DASD is disposed on the distal end of an actuator arm and acts to pivotally move the load beam about the attachment axis. The actuator is comprised of a ring structure on the end of the load beam with the ring structure attached to a central hub through a plurality of spokes. The central hub is fixedly attached to the distal end of the actuator arm for the DASD. Relative motion between the actuator arm and the load beam is accomplished by causing a deflection in one or more of the spokes. The deflection may be caused by piezo-electric transducer elements which are attached to the sides of at least two spokes. Signals sent to the piezo-electric transducer elements will cause bending of the piezoelectric transducer elements and the attached spoke and thus rotationally displace the junction of the spoke and the ring about the central hub. This arrangement permits increasing the fine resolution of the recording tracts on a DASD disk by accommodating the stiction forces which limit the resolution of the actuator and eliminating stiction forces as a factor for the secondary actuator.
摘要翻译： 用于增加用于DASD的读/写头的位置分辨率的辅助致动器设置在致动器臂的远端上并且用于围绕附接轴线枢转地移动负载梁。 致动器由负载梁端部的环形结构构成，环形结构通过多个轮辐连接到中心毂。 中心毂固定在DASD的执行机构的末端。 致动器臂和负载梁之间的相对运动是通过在一个或多个轮辐中引起偏转来实现的。 偏转可能由附接到至少两个轮辐的侧面的压电换能器元件引起。 发送到压电换能器元件的信号将导致压电换能器元件和附接的辐条的弯曲，并因此旋转地使辐条和环绕中心毂的接合位移。 这种布置允许通过适应限制致动器的分辨率的静止力并消除作为次级致动器的因素的静摩擦力来增加DASD盘上的记录道的精细分辨率。
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公开(公告)号：US5754371A
公开(公告)日：1998-05-19
申请号：US677134
申请日：1996-07-09
CPC分类号： G11B21/20 , G11B5/4833
摘要： An swage plate bumper overlies the swage plate of a suspension arm and the end of an actuator arm in a computer disc drive. The swage plate bumper may be molded in two pieces which snap together onto the actuator arm through the swaged hole. Alternatively, the swage plate bumper may be provided with an adhesive attachment to the swage plate, or the swage plate may be coated with a compressible coating during manufacture. The swage plate bumper extends over four corners of the swage plate and prevents damage to the disc surface which might otherwise be caused when the corners of the swage plate contact the disc during a drop or other sudden acceleration.
摘要翻译： 一个挤压板保险杠覆盖悬挂臂的模板和驱动器臂的末端在计算机磁盘驱动器中。 模板保险杠可以模制成两个部件，它们通过加工孔卡在致动器臂上。 或者，模板缓冲器可以设置有与模板的粘合剂附件，或者在制造期间可以用可压缩涂层涂覆模板。 金属板保险杠延伸到金属板的四个角上，并防止损坏盘表面，否则可能会在下降或其他突然加速期间，当金属板的角部接触盘时，可能会造成。
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公开(公告)号：US5768056A
公开(公告)日：1998-06-16
申请号：US831688
申请日：1997-04-10
CPC分类号： G11B5/4853 , G11B21/02 , G11B5/4806 , G11B5/4833 , G11B5/486 , G11B5/5521 , G11B33/14 , G11B5/6017
摘要： A slider for a magnetic disc drive includes a recess at the trailing edge of the slider. A thin film inductive magnetic transducer protrudes from a lower surface of the recess, the transducer having patterned magnetic poles. A barrier layer formed of an oleophobic, hydrophobic polymer having a surface energy lower than the surface tension of lubricant on the disc is bonded to the lower surface of the recess. One suitable polymer for the barrier layer is a fluorochemical acrylate.
摘要翻译： 用于磁盘驱动器的滑块包括在滑块的后缘处的凹部。 薄膜感应磁性换能器从凹部的下表面突出，换能器具有图案化的磁极。 由具有低于盘上的润滑剂的表面张力的表面能的疏油性疏水性聚合物形成的阻隔层粘合到凹部的下表面。 用于阻挡层的一种合适的聚合物是含氟化学丙烯酸酯。
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7.发明授权Magnetic disc with carbon protective layer having regions differing in hardness 失效具有碳保护层的磁盘具有硬度不同的区域
公开(公告)号：US5824387A
公开(公告)日：1998-10-20
申请号：US694155
申请日：1996-08-08
申请人： Zine-Eddine Boutaghou , Dallas W. Meyer , Bo Wei
发明人： Zine-Eddine Boutaghou , Dallas W. Meyer , Bo Wei
CPC分类号： G11B5/82 , G11B5/72 , G11B5/40 , Y10S428/90 , Y10T428/30
摘要： A magnetic disc for use in a disc drive data storage system is disclosed. The magnetic disc includes a layer of magnetic material deposited on a substrate and a carbon overcoat layer deposited on the layer of magnetic material. The carbon overcoat layer has a first hardness over a contact start-stop region of the disc. The carbon overcoat layer has a second hardness over a data storage region of the disc. The second hardness is softer than the first hardness and than a hardness of a diamond like coating on an associated magnetic head so that disc asperities in the data storage region of the carbon overcoat layer will wear upon impact with the magnetic head.
摘要翻译： 公开了一种用于盘驱动器数据存储系统的磁盘。 磁盘包括沉积在基底上的磁性材料层和沉积在磁性材料层上的碳覆盖层。 碳覆盖层具有超过盘的接触起始停止区域的第一硬度。 碳覆盖层在盘的数据存储区域上具有第二硬度。 第二硬度比第一硬度软，而不是相关磁头上的类金刚石涂层的硬度，使得碳覆盖层的数据存储区域中的磁盘粗糙度在与磁头碰撞时会磨损。
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8.发明授权Magnetic media with permanently defined non-magnetic tracks and servo-patterns 失效具有永久定义的非磁性轨迹和伺服模式的磁性介质
公开(公告)号：US6153281A
公开(公告)日：2000-11-28
申请号：US25365
申请日：1998-02-18
申请人： Dallas W. Meyer , Zine-Eddine Boutaghou , Bo Wei
发明人： Dallas W. Meyer , Zine-Eddine Boutaghou , Bo Wei
CPC分类号： B82Y10/00 , G11B5/65 , G11B5/656 , G11B5/74 , G11B5/743 , G11B5/82 , G11B5/855 , G11B2005/0021 , G11B5/553 , G11B5/59633 , G11B5/59655 , Y10S428/90 , Y10T428/24355
摘要： A magnetic medium has permanently defined boundaries between tracks and a consistent surface smoothness. The crystallographic structure of the magnetic medium is modified at the track boundaries, so the grains of the magnetic thin film permanently take on a relatively non-magnetic structure as compared to the grains of the magnetic thin film within the tracks. Servo patterns on the magnetic medium may be permanently defined at the same time the track boundaries are permanently defined. Laser ablation, laser heating to an amorphous structure, photolithography, perpendicular deposition, ion milling, reverse sputtering, and ion implantation can be used individually or in combination, with either the magnetic layer or the underlayer, to create the relatively non-magnetic areas.
摘要翻译： 磁介质具有永久定义的轨迹之间的界限和一致的表面平滑度。 磁性介质的晶体结构在轨道边界处被修改，因此与轨道内的磁性薄膜的晶粒相比，磁性薄膜的晶粒永久地具有相对非磁性的结构。 在磁介质上的伺服模式可以在永久定义轨道边界的同时永久定义。 激光烧蚀，激光加热到非晶结构，光刻，垂直沉积，离子研磨，反向溅射和离子注入可以单独地或组合地与磁层或底层一起使用，以产生相对非磁性的区域。
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公开(公告)号：US5858474A
公开(公告)日：1999-01-12
申请号：US757850
申请日：1996-11-27
申请人： Dallas W. Meyer , Zine-Eddine Boutaghou , Bo Wei
发明人： Dallas W. Meyer , Zine-Eddine Boutaghou , Bo Wei
CPC分类号： B82Y10/00 , G11B5/65 , G11B5/656 , G11B5/74 , G11B5/743 , G11B5/82 , G11B5/855 , G11B2005/0021 , G11B5/553 , G11B5/59633 , G11B5/59655 , Y10S428/90 , Y10T428/24355
摘要： A magnetic medium has permanently defined boundaries between tracks and a consistent surface smoothness. The crystallographic structure of the magnetic medium is modified at the track boundaries, so the grains of the magnetic thin film permanently take on a relatively non-magnetic structure as compared to the grains of the magnetic thin film within the tracks. Servo patterns on the magnetic medium may be permanently defined at the same time the track boundaries are permanently defined. Laser ablation, laser heating to an amorphous structure, photolithography, perpendicular deposition, ion milling, reverse sputtering, and ion implantation can be used individually or in combination, with either the magnetic layer or the underlayer, to create the relatively non-magnetic areas.
摘要翻译： 磁介质具有永久定义的轨迹之间的界限和一致的表面平滑度。 磁性介质的结晶结构在轨道边界处被修改，因此与轨道内的磁性薄膜的晶粒相比，磁性薄膜的晶粒永久地具有相对非磁性的结构。 在磁介质上的伺服模式可以在永久定义轨道边界的同时永久定义。 激光烧蚀，激光加热到非晶结构，光刻，垂直沉积，离子研磨，反向溅射和离子注入可以单独地或组合地与磁层或底层一起使用，以产生相对非磁性的区域。
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公开(公告)号：US5764437A
公开(公告)日：1998-06-09
申请号：US686199
申请日：1996-08-01
摘要： A ramp is disclosed for use in a disc drive system for loading and unloading a magnetic slider carrying actuator. The actuator is rotatable about an actuator pivot and supports the magnetic slider over a first surface of a magnetic disc. The ramp includes a pivoting arm which rotates about a ramp pivot such that the pivoting arm moves toward an inner diameter of the first magnetic disc surface as the actuator rotates toward an outer diameter of the first magnetic disc surface during unloading of the actuator. A sloped region coupled to the pivoting arm is adapted for receiving the actuator during unloading as the pivoting arm moves toward the inner diameter and as the actuator moves toward the outer diameter.
摘要翻译： 公开了一种用于在用于装载和卸载磁性滑动器承载致动器的盘驱动系统中的斜坡。 致动器可围绕致动器枢轴旋转并且将磁性滑块支撑在磁盘的第一表面上。 斜坡包括枢转臂，其围绕斜坡枢轴旋转，使得当致动器卸载期间致动器朝向第一磁盘表面的外径旋转时，枢转臂朝向第一磁盘表面的内径移动。 耦合到枢转臂的倾斜区域适于在卸载期间接收致动器，因为枢转臂朝向内径移动，并且致动器朝向外径移动。
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