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    • 93. 发明授权
    • Disk drive with rectifier circuit for parking the head carriers on power
down
    • 带有整流电路的磁盘驱动器,用于停放头戴式电话的电源
    • US5486957A
    • 1996-01-23
    • US252304
    • 1994-06-01
    • Thomas R. Albrecht
    • Thomas R. Albrecht
    • G11B5/54G11B21/02
    • G11B5/54
    • A magnetic recording disk drive has a rectifier circuit made up of bipolar transistors. Upon removal of power to the spindle motor, the rectifier circuit converts AC spindle motor output to DC actuator coil current to drive the actuator to a parking ramp where the read/write heads are "unloaded" from their respective disk surfaces. The transistor emitter-base junctions are connected to a switch, such as a pair of field-effect transistors, that is responsive to removal of power to the spindle motor. The total current flowing in these emitter-base junctions is small due to the use of series resistors and because the current in the emitter-base circuit does not flow through the actuator coil. The emitter-collector paths of the bipolar transistors are connected as a three-phase, full-wave rectifier to the actuator coil. When the transistors are turned on by the small amount of current from the spindle motor windings through the emitter-base junctions, the majority of current from the windings is allowed to flow through the emitter-collector paths of those transistors to the actuator coil.
    • 磁记录盘驱动器具有由双极型晶体管构成的整流电路。 在去除主轴电动机的电力时,整流电路将AC主轴电动机输出转换成直流致动器线圈电流,以将致动器驱动到停车斜坡,其中读/写头从它们各自的盘表面“卸载”。 晶体管发射极 - 基极结连接到诸如一对场效应晶体管的开关,其响应于去除主轴电机的功率。 由于使用串联电阻,因此在这些发射极 - 基极结中流动的总电流很小,并且由于发射极 - 基极电路中的电流不流过致动器线圈。 双极晶体管的发射极 - 集电极路径作为三相全波整流器连接到致动器线圈。 当晶体管通过来自主轴电动机绕组的少量电流通过发射极 - 基极结接通时,允许来自绕组的大部分电流流过这些晶体管的发射极 - 集电极路径到致动器线圈。
    • 94. 发明授权
    • Gimbaled compliant guide for tape drivers
    • 磁带驱动程序的标准兼容指南
    • US5251844A
    • 1993-10-12
    • US936714
    • 1992-08-31
    • Thomas R. AlbrechtJaquelin K. SpongJames H. Eaton
    • Thomas R. AlbrechtJaquelin K. SpongJames H. Eaton
    • G11B15/60G11B23/04B65H27/00G03B1/04
    • G11B15/60G11B23/047
    • A gimbaled compliant guide for tape drives includes two plates mounted adjacent opposite edges of an arcuate tape bearing surface. The plates are pivotably mounted to accommodate variances in the tape path resulting from tape path tolerances and tape distortions. One plate is also mounted to a leaf spring to accommodate variations in tape width. The combination of simple compliancy and the ability to pivot eliminates the concentration of the stress at a single contact point between the tape edge and the guiding mechanism. By evenly distributing the stress along the span of contact between the edge of the tape and the guides, particulate matter generated from such contact is minimized. Such guiding mechanism may be used on any element of the tape path.
    • 用于磁带驱动器的万向平衡导向器包括安装在弓形带承载表面的相对边缘附近的两个板。 板可枢转地安装,以适应带路径公差和带扭曲的带路径差异。 一个板也安装在板簧上以适应带宽的变化。 简单的符合性和枢转能力的组合消除了在带边缘和引导机构之间的单个接触点处的应力集中。 通过沿着带的边缘和引导件之间的接触跨度均匀地分布应力,从这种接触产生的颗粒物质被最小化。 这种引导机构可以用在磁带路径的任何元件上。
    • 97. 发明授权
    • Microfabricated cantilever stylus with integrated conical tip
    • 具有集成锥形尖端的微型悬臂式触控笔
    • US4968585A
    • 1990-11-06
    • US368580
    • 1989-06-20
    • Thomas R. AlbrechtShinya AkamineMark J. Zdeblick
    • Thomas R. AlbrechtShinya AkamineMark J. Zdeblick
    • G01B7/34C23F4/00G01B21/30G01N37/00G01Q60/38G03F7/00G03F7/40H01J37/28
    • G01Q60/38B82Y35/00G03F7/00
    • A cantilever stylus with an integrally formed conical tip is provided for atomic force microscopy AFM. The method for forming a stylus includes forming a circular masking pattern on the surface of a silicon substrate and anisotropically etching the silicon to form a post under the masking pattern. The post is then isotropically etched to produce a conical silicon tip mold. In one embodiment of the invention the silicon substrate and the conical silicon tip mold are thermally oxidized to form a cantilever stylus having including a cantilever arm with a conical tip fixed to its free end. In another embodiment of the invention the silicon substrate and the conical silicon tip mold are coated with a thin film of a dielectric material to form a cantilever stylus with a conical tip. In this embodiment the backside of the stylus is coated with a conductive material and a strong electric field is applied to the tip to cause electromigration of the conductive material to the point of the tip.
    • 提供具有整体形成的锥形尖端的悬臂式触针用于原子力显微镜AFM。 用于形成触针的方法包括在硅衬底的表面上形成圆形掩模图案,并各向异性地蚀刻硅以在掩模图案下形成柱。 然后将该柱进行各向同性蚀刻以产生锥形硅尖端模具。 在本发明的一个实施例中,硅衬底和圆锥形硅尖端模具被热氧化以形成悬臂式触针,其包括具有固定到其自由端的锥形尖端的悬臂。 在本发明的另一个实施例中,硅衬底和圆锥形硅尖端模具用电介质材料的薄膜涂覆以形成具有锥形尖端的悬臂式触笔。 在该实施例中,触针的背面涂覆有导电材料,并且将强电场施加到尖端,以使导电材料的电迁移到尖端的点。
    • 99. 发明授权
    • Servo patterning and writing compatible with planarization of patterned magnetic disks
    • 伺服图案和写入与图案化磁盘的平面化兼容
    • US08467143B2
    • 2013-06-18
    • US12699501
    • 2010-02-03
    • Thomas R. AlbrechtKurt A. Rubin
    • Thomas R. AlbrechtKurt A. Rubin
    • G11B21/02G11B5/09
    • G11B5/82G11B21/02
    • Embodiments herein illustrate patterned servo data that is used to facilitate subsequent servo writing to a magnetic disk while allowing the patterned disk to be planarized with a relatively simple planarization process. One disk drive system includes a magnetic disk that is patterned with magnetic lands and nonmagnetic grooves. The magnetic disk also includes bootstrap bands that may be configured at an inner diameter of the magnetic disk. The magnetic lands of the bootstrap bands have varying sizes and are patterned as servo data having a uniform polarity of magnetization. The bootstrap bands have a width that is sufficiently narrow to support an air bearing surface of a slider. The data tracks are circumferentially configured proximate to the bootstrap bands. The slider reads the patterned servo data to facilitate writing of additional servo data in the data tracks.
    • 本文的实施例示出了图案化的伺服数据,其被用于有助于随后的伺服写入到磁盘,同时通过相对简单的平坦化处理平面化图案化的盘。 一个磁盘驱动器系统包括用磁性层和非磁性凹槽构图的磁盘。 磁盘还包括可以配置在磁盘的内径处的引导带。 自举带的磁性区域具有不同的尺寸,并且被图案化为具有均匀的磁化极性的伺服数据。 自举带具有足够窄的宽度以支撑滑块的空气支承表面。 数据轨道在引导带附近是周向配置的。 滑块读取图案化的伺服数据,以便于在数据轨道中写入附加的伺服数据。
    • 100. 发明授权
    • Self-assembly structures used for fabricating patterned magnetic media
    • 用于制造图案化磁性介质的自组装结构
    • US08441758B2
    • 2013-05-14
    • US13108515
    • 2011-05-16
    • Thomas R. AlbrechtXiao Z. WuHenry Hung Yang
    • Thomas R. AlbrechtXiao Z. WuHenry Hung Yang
    • G11B5/82
    • G11B5/855B82Y10/00G11B5/743G11B5/82G11B5/865
    • Methods of defining servo patterns and data patterns for forming patterned magnetic media are described. For one method, a lithographic process is performed to define a servo pattern in servo regions on a substrate. The lithographic process also defines a first data pattern in data regions of the substrate. The first data pattern is then transferred to (i.e., etched into) the data regions. Self-assembly structures are then formed on the data pattern in the data regions to define a second data pattern. The servo pattern is then transferred to the servo regions and the second data pattern is transferred to the data regions. Thus, the servo pattern is defined through lithographic processes while the data pattern is defined by a combination of lithographic processes and self-assembly.
    • 描述了定义用于形成图案化磁性介质的伺服图案和数据图案的方法。 对于一种方法,执行光刻处理以在衬底上的伺服区域中定义伺服图案。 光刻工艺还定义了衬底的数据区域中的第一数据模式。 然后将第一数据模式转移到(即蚀刻)数据区。 然后在数据区域中的数据模式上形成自组装结构以定义第二数据模式。 然后将伺服模式传送到伺服区域,并将第二数据模式传送到数据区域。 因此,通过光刻工艺定义伺服图案,同时通过光刻工艺和自组装的组合来定义数据图案。