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1. 发明授权

US08335049B1 Disk drive detecting crack in microactuator 有权
标题翻译：微型驱动器中的磁盘驱动器检测裂纹
公开(公告)号：US08335049B1
公开(公告)日：2012-12-18
申请号：US12794891
申请日：2010-06-07
申请人： Yanning Liu , Chuanwen Ji , Nathan J. Santee
发明人： Yanning Liu , Chuanwen Ji , Nathan J. Santee
IPC分类号： G11B5/596
CPC分类号： G11B19/048 , G11B5/5552
摘要： A disk drive is disclosed comprising a first disk surface, a first head coupled to a distal end of an actuator arm, and a voice coil motor (VCM) and a first microactuator operable to actuate the first head over the first disk surface. A servo loop for servoing the head in response to the servo sectors is disabled, and after disabling the servo loop, the first microactuator is excited with a control signal at a test frequency in order to accentuate a crack in the first microactuator. After exciting the first microactuator, the servo loop is enabled, and after enabling the servo loop, the first microactuator is evaluated to detect the crack in the first microactuator.
摘要翻译：公开了一种磁盘驱动器，包括第一磁盘表面，耦合到致动器臂的远端的第一磁头和音圈电动机（VCM）以及可操作以在第一磁盘表面上致动第一磁头的第一微型致动器。用于响应于伺服扇区伺服磁头的伺服回路被禁用，并且在禁用伺服回路之后，第一微致动器以测试频率的控制信号被激励，以便加强第一微致动器中的裂纹。在激活第一个微致动器之后，伺服回路被使能，并且在启用伺服回路之后，评估第一微致动器以检测第一微致动器中的裂纹。

2. 发明授权

US08665567B2 Suspension assembly having a microactuator grounded to a flexure 有权
标题翻译：悬架组件具有接地到挠曲件的微型致动器
公开(公告)号：US08665567B2
公开(公告)日：2014-03-04
申请号：US12827813
申请日：2010-06-30
申请人： Wing C. Shum , Yanning Liu , John E. Scura
发明人： Wing C. Shum , Yanning Liu , John E. Scura
IPC分类号： G11B5/56
CPC分类号： G11B5/486 , G11B5/4873 , G11B5/5552 , G11B5/56 , G11B21/24
摘要： Disclosed is a suspension assembly for a disk drive that includes: a mounting plate having a through-hole extending from a top-side of the mounting plate to a bottom-side of the mounting plate; a microactuator mounting structure formed in the mounting plate; a microactuator mounted in the microactuator mounting structure; and a flexure attached to the bottom-side of the of mounting plate. The flexure includes: a metal layer; an insulator layer; a trace layer that includes a ground trace; and an opening, wherein the opening extends through the metal layer and the insulator layer to a gold-plated ground trace. A conductive epoxy is bonded to the microactuator and extends through the through-hole to bond to the flexure, wherein the epoxy extends through the opening of the flexure to the gold-plated ground trace of the flexure such that the microactuator is grounded to the flexure.
摘要翻译：公开了一种用于盘驱动器的悬挂组件，其包括：安装板，其具有从安装板的顶侧延伸到安装板的底侧的通孔; 形成在安装板上的微致动器安装结构; 安装在微致动器安装结构中的微型致动器; 以及附接到安装板的底侧的挠曲件。挠曲包括：金属层; 绝缘体层; 包括地面迹线的迹线层; 和开口，其中所述开口延伸穿过所述金属层和所述绝缘体层至镀金的接地迹线。导电环氧树脂结合到微致动器并延伸通过通孔以结合到挠曲件，其中环氧树脂通过挠曲件的开口延伸到挠曲件的镀金接地迹线，使得微致动器接地到挠曲件。

3. 发明申请

US20070206317A1 Radial position seek tuning for acoustic performance 有权
标题翻译：用于声学性能的径向位置搜索调谐
公开(公告)号：US20070206317A1
公开(公告)日：2007-09-06
申请号：US11713531
申请日：2007-03-01
申请人： Yu Sun , Yanning Liu
发明人： Yu Sun , Yanning Liu
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： Examples of the present invention relate to reduction in acoustic noise by tuning seek characteristics of a servo controller, depending on a radial position of a head relative to a disk. The servo controller can provide compensation for acoustic resonance modes.
摘要翻译：本发明的示例涉及通过根据磁头相对于磁盘的径向位置来调整伺服控制器的寻道特性来降低声学噪声。伺服控制器可以为声共振模式提供补偿。

4. 发明授权

US08547657B1 Disk drive detecting defective microactuator 失效
标题翻译：磁盘驱动器检测有缺陷的微型致动器
公开(公告)号：US08547657B1
公开(公告)日：2013-10-01
申请号：US12797883
申请日：2010-06-10
申请人： Yanning Liu , Rainer H. Laatsch , Andrew H. Tong
发明人： Yanning Liu , Rainer H. Laatsch , Andrew H. Tong
IPC分类号： G11B5/596 , G11B21/02 , G11B27/36
CPC分类号： G11B5/4873 , G11B5/5552 , G11B19/048
摘要： A disk drive is disclosed comprising a disk surface comprising a plurality of tracks, each track comprising a plurality of servo sectors. The disk drive further comprises a head coupled to a distal end of an actuator arm, and a voice coil motor (VCM) and a microactuator operable to actuate the head over the disk surface. The head is first servoed in response to the servo sectors, and after first servoing the head, a manufacturing procedure is executed by controlling the VCM and the microactuator to servo the head while accessing the disk surface. After executing the manufacturing procedure, the head is second servoed in response to the servo sectors, and the microactuator is evaluated in response to the first and second servoing.
摘要翻译：公开了一种磁盘驱动器，其包括包括多个轨道的盘表面，每个轨道包括多个伺服扇区。磁盘驱动器还包括联接到致动器臂的远端的磁头和音圈电动机（VCM）以及可操作以将磁头驱动到磁盘表面上的微致动器。头首先响应于伺服扇区进行伺服，并且首先伺服磁头后，通过控制VCM和微致动器在访问磁盘表面时伺服磁头来执行制造程序。在执行制造程序之后，首先响应于伺服扇区进行伺服，并响应于第一和第二伺服来评估微型致动器。

5. 发明授权

US08325446B1 Disk drive head gimbal assembly having a flexure tail with features to facilitate bonding 有权
公开(公告)号：US08325446B1
公开(公告)日：2012-12-04
申请号：US13164936
申请日：2011-06-21
申请人： Yanning Liu , Wing C. Shum , Tzong-Shii Pan , Kia Moh Teo
发明人： Yanning Liu , Wing C. Shum , Tzong-Shii Pan , Kia Moh Teo
IPC分类号： G11B5/127
CPC分类号： G11B5/4833 , G11B5/484 , G11B5/4846 , G11B5/486 , H05K3/323 , H05K3/361 , H05K2201/055
摘要： A head gimbal assembly for a disk drive includes a read head and a suspension assembly. The suspension assembly includes a load beam and a laminate flexure. The laminate flexure includes a structural layer, a dielectric layer, and a conductive layer that includes a plurality of electrical traces. The laminate flexure includes a tongue portion that connects to the read head and a flexure tail that extends away from the tongue portion. The flexure tail includes a plurality of flexure bond pads. Each of the plurality of flexure bond pads includes a widened region of a corresponding one of the plurality of electrical traces in the conductive layer, and a corresponding one of a plurality of segments or discontinuous islands in the structural layer.

6. 发明授权

US08300348B1 Disk drive detecting disk boundaries using microactuator 有权
标题翻译：使用微致动器的磁盘驱动器检测磁盘边界
公开(公告)号：US08300348B1
公开(公告)日：2012-10-30
申请号：US12823359
申请日：2010-06-25
申请人： Yanning Liu , Norman D. Gardner
发明人： Yanning Liu , Norman D. Gardner
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/5552 , G11B5/5547
摘要： A disk drive is disclosed comprising a disk, an actuator arm, a head coupled to a distal end of the actuator arm, a voice coil motor (VCM) operable to actuate the head over the disk in coarse movements by rotating the actuator arm about a pivot, and a microactuator operable to actuate the head over the disk in fine movements. A disk boundary condition is detected by moving the actuator arm toward one of an outer diameter of the disk and an inner diameter of the disk, and monitoring an induced voltage generated by the microactuator. The disk boundary condition is detected when the induced voltage exceeds a threshold.
摘要翻译：公开了一种磁盘驱动器，包括盘，致动器臂，联接到致动器臂的远端的头部，音圈电机（VCM），可操作以通过围绕一个枢轴和可操作以微细运动在头盘上致动头部的微致动器。通过将致动器臂朝向盘的外径和盘的内径之一移动并监视微致动器产生的感应电压来检测盘边界条件。当感应电压超过阈值时检测盘边界条件。

7. 发明授权

US08295014B1 Disk drive head gimbal assembly having a flexure tail with transverse flying leads 有权
标题翻译：磁盘驱动器头万向架组件具有带有横向飞行引线的弯曲尾部
公开(公告)号：US08295014B1
公开(公告)日：2012-10-23
申请号：US13164959
申请日：2011-06-21
申请人： Kia Moh Teo , Yanning Liu , Tzong-Shii Pan , Wing Chun Shum
发明人： Kia Moh Teo , Yanning Liu , Tzong-Shii Pan , Wing Chun Shum
IPC分类号： G11B5/127
CPC分类号： G11B5/486 , H05K1/111 , H05K3/323 , H05K3/328 , H05K3/361 , H05K2201/09727 , H05K2203/0285 , Y02P70/611
摘要： A head gimbal assembly for a disk drive includes a read head, a load beam, and a laminate flexure. The laminate flexure includes a structural layer, a dielectric layer, and a conductive layer that includes a plurality of electrical traces. The laminate flexure includes a tongue portion that connects to the read head, and a flexure tail that extends away from the tongue portion and includes a plurality of flexure bond pads that may facilitate ultrasonic or ACF bonding. Each of the plurality of flexure bond pads consists of a widened region of a corresponding one of the plurality of electrical traces in the conductive layer, and a gold coating upon the widened region. The widened region of each of the plurality of electrical traces extends transverse to the flexure tail's longitudinal axis at least 2.5 times more than it extends parallel to the flexure tail's longitudinal axis.
摘要翻译：用于磁盘驱动器的磁头万向架组件包括读取头，负载梁和层压板挠曲件。层压板挠曲包括结构层，电介质层和包括多个电迹线的导电层。层压板挠曲包括连接到读取头的舌部和从舌部延伸的弯曲尾部，并且包括可以促进超声波或ACF结合的多个挠曲接合垫。多个挠曲接合垫中的每一个由导电层中的多个电迹线中相应的一个的加宽区域和加宽区域上的金涂层组成。多个电迹线中的每一个的加宽区域横向于弯曲尾部的纵向轴线延伸至少比平行于弯曲尾部的纵向轴线延伸的2.5倍。

8. 发明申请

US20080278849A1 Flow balancer for track misregistration improvement 审中-公开
标题翻译：流量平衡器用于跟踪配准改进
公开(公告)号：US20080278849A1
公开(公告)日：2008-11-13
申请号：US11800864
申请日：2007-05-07
申请人： Haesung Kwon , Yun-Sik Han , Yanning Liu , Sean Kang , Hyung Jai Lee
发明人： Haesung Kwon , Yun-Sik Han , Yanning Liu , Sean Kang , Hyung Jai Lee
IPC分类号： G11B33/14
CPC分类号： G11B33/148 , G11B25/043
摘要： Disclosed is a hard disk drive that includes at least one disk enclosed by a cover and a disk. A damper is separated from the disk by an air gap about 1.0 mm. The damper and air gap reduce the velocity of the air flow and any vibration associated with the flow of air.
摘要翻译：公开了一种硬盘驱动器，其包括由盖和盘包围的至少一个盘。阻尼器通过约1.0mm的气隙与盘分离。阻尼器和气隙减小了空气流速和与空气流动相关的任何振动。

9. 发明授权

US07443634B2 Asymmetrical storage disk for a disk drive 有权
标题翻译：用于磁盘驱动器的不对称存储磁盘
公开(公告)号：US07443634B2
公开(公告)日：2008-10-28
申请号：US11799653
申请日：2007-05-02
申请人： Erhard Schreck , Yanning Liu
发明人： Erhard Schreck , Yanning Liu
IPC分类号： G11B5/82 , G11B25/04
CPC分类号： G11B5/7315 , G11B5/7325 , G11B5/82 , G11B5/8404
摘要： A storage disk for a hard disk drive includes a homogeneously-formed body region, a first side region and a second side region. The body region includes a first body side and a second body side opposite the first body side. The first side region is secured to the first body side and the second side region is secured to the second body side. In one embodiment, the first side region is adapted to store data and the second side region is not adapted to store data. The first side region includes a plurality of layers formed from different materials relative to one another. The first side region has a first density that is different than a second density of the second side region. In one embodiment, the first side region has a mass that is different than a mass of the second side region. In an alternative embodiment, the first side region has a thickness that is different than a thickness of the second side region.
摘要翻译：用于硬盘驱动器的存储盘包括均匀形成的体区，第一侧区和第二侧区。身体区域包括与第一身体侧相对的第一主体侧和第二主体侧。第一侧区域被固定到第一主体侧，并且第二侧部区域被固定到第二主体侧。在一个实施例中，第一侧区适于存储数据，而第二侧区不适于存储数据。第一侧区域包括由不同材料相对于彼此形成的多个层。第一侧区域具有与第二侧区域的第二密度不同的第一密度。在一个实施例中，第一侧区具有与第二侧区的质量不同的质量。在替代实施例中，第一侧区具有不同于第二侧区的厚度的厚度。

10. 发明申请

US20070253110A1 Asymmetrical storage disk for a disk drive 有权
标题翻译：用于磁盘驱动器的不对称存储磁盘
公开(公告)号：US20070253110A1
公开(公告)日：2007-11-01
申请号：US11799653
申请日：2007-05-02
申请人： Erhard Schreck , Yanning Liu
发明人： Erhard Schreck , Yanning Liu
IPC分类号： G11B5/82 , G11B5/84
CPC分类号： G11B5/7315 , G11B5/7325 , G11B5/82 , G11B5/8404
摘要： A storage disk for a hard disk drive includes a homogeneously-formed body region, a first side region and a second side region. The body region includes a first body side and a second body side opposite the first body side. The first side region is secured to the first body side and the second side region is secured to the second body side. In one embodiment, the first side region is adapted to store data and the second side region is not adapted to store data. The first side region includes a plurality of layers formed from different materials relative to one another. The first side region has a first density that is different than a second density of the second side region. In one embodiment, the first side region has a mass that is different than a mass of the second side region. In an alternative embodiment, the first side region has a thickness that is different than a thickness of the second side region.
摘要翻译：用于硬盘驱动器的存储盘包括均匀形成的体区，第一侧区和第二侧区。身体区域包括与第一身体侧相对的第一主体侧和第二主体侧。第一侧区域被固定到第一主体侧，并且第二侧部区域被固定到第二主体侧。在一个实施例中，第一侧区适于存储数据，而第二侧区不适于存储数据。第一侧区域包括由不同材料相对于彼此形成的多个层。第一侧区域具有与第二侧区域的第二密度不同的第一密度。在一个实施例中，第一侧区具有与第二侧区的质量不同的质量。在替代实施例中，第一侧区具有不同于第二侧区的厚度的厚度。

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