Method and for wide track erasure in a hard disk drive
    11.
    发明申请
    Method and for wide track erasure in a hard disk drive 审中-公开
    方法和硬盘驱动器中的宽轨迹擦除

    公开(公告)号:US20090210206A1

    公开(公告)日:2009-08-20

    申请号:US12070141

    申请日:2008-02-15

    IPC分类号: G06G7/50 G06G7/62

    CPC分类号: G06F17/5018 G06F2217/16

    摘要: A method and its implementation as a program system are disclosed herein for generating an air flow report based upon a cellular model of the air flow of a hard disk drive including a parameterized component approximated by a component parameter list and a map of the partitioned regions of the hard disk drive. The air flow report is generated based upon the cellular model and a partition/region map. The partition/region map lumps the simulation domain into a small number of regions and then calculates the fluxes across boundaries of the regions. These fluxes accumulate the results of many individual cells, averaging out small variations caused by rounding and/or the convergence properties of the specific cellular approach used. A simulation figure of merit is calculated from the air flow report that further refines the accuracy, effectively removing even more noise.

    摘要翻译: 本文公开了一种作为程序系统的方法及其实现方式,用于基于硬盘驱动器的空气流的蜂窝模型来生成空气流量报告,所述蜂窝模型包括由部件参数列表近似的参数化部件和分割区域的映射 硬盘驱动器。 空气流量报告基于蜂窝模型和分区/区域图生成。 分区/区域映射将模拟域块聚集成少量区域,然后计算跨区域边界的通量。 这些通量积累了许多单个细胞的结果,平均了由舍入所引起的小变化和/或所使用的特定细胞方法的收敛性质。 从空气流量报告中计算一个模拟品质因数,进一步提高精度,有效消除更多的噪音。

    Head gimbal assemblies for very low flying height heads with optional micro-actuators in a hard disk drive
    12.
    发明授权
    Head gimbal assemblies for very low flying height heads with optional micro-actuators in a hard disk drive 失效
    用于非常低飞行高度头的头万向节组件,在硬盘驱动器中具有可选的微执行器

    公开(公告)号:US07336436B2

    公开(公告)日:2008-02-26

    申请号:US10903730

    申请日:2004-07-29

    IPC分类号: G11B5/60 G11B21/21

    摘要: Head gimbal assembly (HGA) may include a piezo layer mechanically coupled with the slider or include a piezo element mechanically coupled by the flexure to the slider top near the read-write head. A bridge flex circuit is included, providing a piezo-control bundle to at least one piezo layer lead. A flex circuit assembly may further provide a piezo control bundle, shared with piezo control bundles for multiple read-write heads. HGA may include a micro-actuator to position read-write head near track on accessed, rotating disk surface. Flex circuit assembly may provide a source control bundle, shared with the micro-actuator control bundles for multiple read-write heads. When accessing, all micro-actuators perform same positioning action, insuring proper positioning of read-write head. This applies to both co-located and non co-located micro-actuators. Wire bundles may include one or two active signal wires. Voice coil actuators and hard disk drives, and their manufacture, are included.

    摘要翻译: 头部万向节组件(HGA)可以包括与滑块机械耦合的压电层,或者包括通过挠性机构耦合到读写头附近的滑块顶部的压电元件。 包括桥梁柔性电路,为至少一个压电层引线提供压电控制束。 柔性电路组件还可以提供与用于多个读写头的压电控制束共享的压电控制束。 HGA可以包括微致动器以将读写头靠近所访问的旋转盘表面上的轨迹。 Flex电路组件可以提供与多个读写头的微执行器控制束共享的源控制束。 当访问时,所有微执行器执行相同的定位动作,确保读写头的正确定位。 这适用于同位置和非共定位微致动器。 电线束可以包括一个或两个有源信号线。 包括音圈执行器和硬盘驱动器及其制造。

    Method and apparatus for a D33 mode piezoelectric actuator with a bending motion
    13.
    发明授权
    Method and apparatus for a D33 mode piezoelectric actuator with a bending motion 失效
    具有弯曲运动的D33模式压电致动器的方法和装置

    公开(公告)号:US07282836B2

    公开(公告)日:2007-10-16

    申请号:US11298721

    申请日:2005-12-08

    IPC分类号: H01L41/083

    CPC分类号: H01L41/083 H01L41/094

    摘要: The invention includes a D33 mode piezoelectric actuator region, including electrodes of differing length to produce a bending motion. The invention also includes a piezoelectric actuator containing a first piezoelectric actuator region coupled to a second piezoelectric actuator region, which may be separated by the ceramic material. Applying a first potential difference between electrodes generates a first bending of the piezoelectric actuator region. Applying the negative first potential difference generates the complement first bending for the piezoelectric actuator. The piezoelectric actuator region may be used to radially move a coupled transducer by the first bending. The piezoelectric actuator may be used to radially move a coupled transducer by the first bending and/or its complement. The invention includes the methods of making the piezoelectric actuator region and the piezoelectric actuator, and their products.

    摘要翻译: 本发明包括具有不同长度的电极以产生弯曲运动的D33模式压电致动器区域。 本发明还包括压电致动器,其包含耦合到第二压电致动器区域的第一压电致动器区域,该第二压电致动器区域可被陶瓷材料分隔开。 施加电极之间的第一电位差产生压电致动器区域的第一弯曲。 施加负的第一电位差产生用于压电致动器的互补第一弯曲。 压电致动器区域可以用于通过第一弯曲来径向移动耦合的换能器。 压电致动器可以用于通过第一弯曲和/或其补码件使耦合的换能器径向移动。 本发明包括制造压电致动器区域和压电致动器及其产品的方法。

    Balanced motor micro-actuator
    14.
    发明授权
    Balanced motor micro-actuator 失效
    平衡电机微执行器

    公开(公告)号:US08279561B2

    公开(公告)日:2012-10-02

    申请号:US12209689

    申请日:2008-09-12

    IPC分类号: G11B5/56

    摘要: This application discloses a hard disk drive, a head stack assembly, and a head gimbal assembly, each including a micro-actuator hinge configured to position a slider over a rotating disk surface with greater stroke sensitivity while reducing bending perpendicular to the disk surface. The micro-actuator hinge includes at least one micro-actuator, a hinge plate and at least one hinge plate cover, with the micro-actuator including a first region and a second region, each coupled between the hinge plate and the hinge plate cover.

    摘要翻译: 本申请公开了一种硬盘驱动器,磁头组合组件和磁头万向架组件,每个组件包括微型致动器铰链,该微型致动器铰链构造成在较大行程灵敏度的同时减小垂直于磁盘表面的弯曲,将滑块定位在旋转磁盘表面上。 微致动器铰链包括至少一个微致动器,铰链板和至少一个铰链板盖,其中微致动器包括第一区域和第二区域,每个联接在铰链板和铰链板盖之间。

    METHOD AND APPARATUS FOR A HARD DISK DRIVE INCLUDING A BALANCED MICRO-ACTUATOR
    15.
    发明申请
    METHOD AND APPARATUS FOR A HARD DISK DRIVE INCLUDING A BALANCED MICRO-ACTUATOR 失效
    硬盘驱动器的方法和装置,包括平衡微型致动器

    公开(公告)号:US20100067147A1

    公开(公告)日:2010-03-18

    申请号:US12209689

    申请日:2008-09-12

    IPC分类号: G11B5/48

    摘要: This application discloses a hard disk drive, a head stack assembly, and a head gimbal assembly, each including a micro-actuator hinge configured to position a slider over a rotating disk surface with greater stroke sensitivity while reducing bending perpendicular to the disk surface. The micro-actuator hinge includes at least one micro-actuator, a hinge plate and at least one hinge plate cover, with the micro-actuator including a first region and a second region, each coupled between the hinge plate and the hinge plate cover.

    摘要翻译: 本申请公开了一种硬盘驱动器,磁头组合组件和磁头万向架组件,每个组件包括微型致动器铰链,该微型致动器铰链构造成在较大行程灵敏度的同时减小垂直于磁盘表面的弯曲,将滑块定位在旋转磁盘表面上。 微致动器铰链包括至少一个微致动器,铰链板和至少一个铰链板盖,其中微致动器包括第一区域和第二区域,每个联接在铰链板和铰链板盖之间。

    METHOD AND APPARATUS FOR DAMPENING AND FILTERING AIR FLOW EFFECTS IN A HARD DISK DRIVE
    16.
    发明申请
    METHOD AND APPARATUS FOR DAMPENING AND FILTERING AIR FLOW EFFECTS IN A HARD DISK DRIVE 失效
    用于在硬盘驱动器中对空气流动效果进行淹没和过滤的方法和装置

    公开(公告)号:US20100007987A1

    公开(公告)日:2010-01-14

    申请号:US12170339

    申请日:2008-07-09

    IPC分类号: G11B33/14

    CPC分类号: G11B5/6005 G11B33/08

    摘要: A hard disk drive is disclosed including at least one air filter mounted on a shroud wall of the base and at least two disk dampers where at least one disk damper covers a fraction of the maximal covering angle configured with the air filter to optimize both the air filter and disk dampening. Methods of manufacturing the hard disk drive are also disclosed.

    摘要翻译: 公开了一种硬盘驱动器,其包括安装在基座的护罩壁上的至少一个空气过滤器和至少两个盘式阻尼器,其中至少一个盘式阻尼器覆盖配置有空气过滤器的最大覆盖角的一部分,以优化两者的空气 过滤器和磁盘润版。 还公开了制造硬盘驱动器的方法。

    Method and apparatus coupling at least one piezoelectric device to a slider in a hard disk drive for microactuation
    17.
    发明授权
    Method and apparatus coupling at least one piezoelectric device to a slider in a hard disk drive for microactuation 有权
    将至少一个压电装置耦合到硬盘驱动器中用于微动作的滑块的方法和装置

    公开(公告)号:US07612967B2

    公开(公告)日:2009-11-03

    申请号:US11017540

    申请日:2004-12-15

    IPC分类号: G11B5/56

    摘要: A region of flexure layer, including slider mounting face coupled to offset mounting face for at least one piezoelectric device. The offset mounting face for piezoelectric device provides asymmetry between first contact region and second contact region. This is cost effective, reliable support for piezoelectric devices used for micro-actuation in hard disk drives. The slider moves based upon asymmetry of the offset mounting face coupled to the piezoelectric device twisting the slider mounting face. The invention includes flexure containing the region of the flexure layer. The invention includes head gimbal assembly including flexure, actuator arm including head gimbal assembly, and actuator assembly including actuator arm, and hard disk drive including actuator assembly. The invention includes manufacturing the region, the flexure, the head gimbal assembly, the actuator arm, the actuator assembly and the hard disk drive, as well as these products of the manufacturing processes.

    摘要翻译: 挠曲层的区域,包括耦合到用于至少一个压电装置的偏移安装面的滑块安装面。 用于压电装置的偏置安装面在第一接触区域和第二接触区域之间提供不对称性。 这对于用于硬盘驱动器中的微动作的压电装置来说是经济有效的可靠的支持。 滑块基于耦合到扭转滑块安装面的压电装置的偏移安装面的不对称性移动。 本发明包括包含挠曲层的区域的挠曲。 本发明包括头万向架组件,其包括挠性件,包括头万向架组件的致动器臂和包括致动器臂的致动器组件以及包括致动器组件的硬盘驱动器。 本发明包括制造区域,挠曲件,头万向架组件,致动器臂,致动器组件和硬盘驱动器,以及制造过程的这些产品。

    Method and apparatus for sensing leakage current to estimate and possibly adjust flying height of a read-write head in a hard disk drive
    18.
    发明授权
    Method and apparatus for sensing leakage current to estimate and possibly adjust flying height of a read-write head in a hard disk drive 失效
    用于检测泄漏电流的方法和装置,以估计和可能地调整硬盘驱动器中的读写头的飞行高度

    公开(公告)号:US07573668B2

    公开(公告)日:2009-08-11

    申请号:US11333679

    申请日:2006-01-16

    IPC分类号: G11B21/02

    摘要: A slider, flexure finger, head suspension assembly, head gimbal assembly, main flex circuit, actuator assembly, spindle motor, embedded circuit, and hard disk drive using and/or supporting method of estimating flying height of read-write head near rotating disk surface. Method senses leakage current between slider and spindle motor to create potential difference measurement, and converts potential difference measurement to create estimate of flying height. Method controlling flying height using method for estimating by adjusting vertical actuation signal to micro-actuator assembly. The invention includes methods of manufacturing and their products.

    摘要翻译: 使用和/或支持在旋转盘表面附近估计读写头的飞行高度的滑块,挠曲指,头悬挂组件,头万向架组件,主柔性电路,致动器组件,主轴电机,嵌入式电路和硬盘驱动器 。 方法检测滑块和主轴电机之间的泄漏电流,以产生电位差测量,并转换电位差测量值,以产生飞行高度的估计值。 使用用于通过调节垂直致动信号到微致动器组件进行估计的方法来控制飞行高度。 本发明包括制造方法及其产品。

    Method and apparatus coupling to a slider in a hard disk drive for microactuation
    19.
    发明授权
    Method and apparatus coupling to a slider in a hard disk drive for microactuation 有权
    耦合到硬盘驱动器中用于微动作的滑块的方法和装置

    公开(公告)号:US08064172B2

    公开(公告)日:2011-11-22

    申请号:US11323778

    申请日:2005-12-30

    IPC分类号: G11B5/56

    摘要: A region of flexure layer, including slider mounting face coupled to offset mounting face for at least one piezoelectric device. The offset mounting face for piezoelectric device provides asymmetry between first contact region and second contact region based upon notch and slot. This is cost effective, reliable support for piezoelectric devices used for micro-actuation in hard disk drives. The slider moves based upon asymmetry of the offset mounting face coupled to the piezoelectric device twisting the slider mounting face. The invention includes flexure containing the region of the flexure layer. The invention includes head gimbal assembly including flexure, actuator arm including head gimbal assembly, and actuator assembly including actuator arm, and hard disk drive including actuator assembly. The invention includes manufacturing the region, the flexure, the head gimbal assembly, the actuator arm, the actuator assembly and the hard disk drive, as well as these products of the manufacturing processes.

    摘要翻译: 挠曲层的区域,包括耦合到用于至少一个压电装置的偏移安装面的滑块安装面。 用于压电装置的偏移安装面基于凹口和狭槽提供第一接触区域和第二接触区域之间的不对称性。 这对于用于硬盘驱动器中的微动作的压电装置来说是经济有效的可靠的支持。 滑块基于耦合到扭转滑块安装面的压电装置的偏移安装面的不对称性移动。 本发明包括包含挠曲层的区域的挠曲。 本发明包括头万向架组件,其包括挠性件,包括头万向架组件的致动器臂和包括致动器臂的致动器组件以及包括致动器组件的硬盘驱动器。 本发明包括制造区域,挠曲件,头万向架组件,致动器臂,致动器组件和硬盘驱动器,以及制造过程的这些产品。

    METHOD AND APPARATUS FOR A DISK DAMPER INCLUDING AN ENCLOSING FLOW CHAMBER WALL FOR A HARD DISK DRIVE
    20.
    发明申请
    METHOD AND APPARATUS FOR A DISK DAMPER INCLUDING AN ENCLOSING FLOW CHAMBER WALL FOR A HARD DISK DRIVE 失效
    用于硬盘驱动器的盘式阻尼器的封装流动室的方法和装置

    公开(公告)号:US20100188777A1

    公开(公告)日:2010-07-29

    申请号:US12359155

    申请日:2009-01-23

    IPC分类号: G11B17/32

    CPC分类号: G11B33/146 G11B25/043

    摘要: A hard disk drive with a disk base including a disk wall with a first intake, a second intake off of the first intake, an outlet and an air filter configured to receive a first airflow from the first intake and suction from a second airflow from the second intake creating negative pressure at a trapping surface of the air filter away from the outlet. At least one disk rotates to create a rotating disk surface generating airflow configured to enter the first intake to create the first airflow. A disk damper includes an enclosing wall neighboring the air filter to create a flow chamber providing a third airflow through the outlet formed of the first air flow crossing the trapping surface and the second air flow. A disk cover mounts on the disk base to encapsulate the air chamber. The disk base and disk damper are disclosed.

    摘要翻译: 一种具有盘基座的硬盘驱动器,包括具有第一进气口的盘壁,第一进气口的第二进气口,出口和空气过滤器,该空气过滤器被配置为从第一进气口接收第一气流并从第二气流 第二进气口在空气过滤器的捕集表面处离开出口产生负压。 至少一个盘旋转以产生旋转的盘表面,产生气流,该气流被配置成进入第一进气口以产生第一气流。 盘式减震器包括与空气过滤器相邻的封闭壁,以产生流动室,该流动室提供通过穿过捕集表面和第二空气流的第一空气流形成的出口的第三气流。 磁盘盖安装在磁盘基座上以封装空气室。 公开了盘基和盘式阻尼器。