Shear-based transducer for HDD read/write element height control
    1.
    发明授权
    Shear-based transducer for HDD read/write element height control 失效
    用于HDD读/写元件高度控制的基于剪切的换能器

    公开(公告)号:US06570730B1

    公开(公告)日:2003-05-27

    申请号:US09472262

    申请日:1999-12-27

    IPC分类号: G11B2102

    摘要: To allow for adjusting the fly height of a read/write head carried by a slider, a shear transducer is added to the slider. The shear transducer comprises a layer of piezoelectric material added to the slider so that the portion of the slider carrying the read/write head can be moved when the shear transducer is sheared. To cause the shear transducer to shear, a voltage is applied across the piezoelectric layer. To control the movement of the transducer, a closed-loop control system is used. The control system senses the spacing between the read/write head and the disc surface, compares the sensed spacing to a desired spacing, and adjusts the voltage applied to the shear transducer to reduce the difference between the actual and desired spacing.

    摘要翻译: 为了调整由滑块承载的读/写头的飞行高度,剪切传感器被添加到滑块。 剪切换能器包括添加到滑块的压电材料层,使得当剪切换能器被剪切时,承载读/写头的滑块的部分可以移动。 为了使剪切传感器剪切,在压电层上施加电压。 为了控制传感器的移动,使用闭环控制系统。 控制系统感测读/写头与盘表面之间的间距,将感测到的间距与期望的间距进行比较,并调整施加到剪切传感器的电压,以减小实际和期望间距之间的差异。

    Integrated electrostatic slider fly height control
    6.
    发明授权
    Integrated electrostatic slider fly height control 失效
    集成静电滑块飞行高度控制

    公开(公告)号:US06876509B2

    公开(公告)日:2005-04-05

    申请号:US10055448

    申请日:2002-01-23

    摘要: A disc drive that includes a slider with a field emission sensor that senses fly height. The sensor has an electrode tip disposed on the slider. The electrode tip faces a media surface across a gap. The sensor conducts a tunneling current through the gap and provides an output representing the length of the gap. An actuator adjusts the fly height spacing. A feedback circuit provides an actuator electrical input as a feedback function of the sensor output to control the fly height spacing.

    摘要翻译: 磁盘驱动器,其包括具有感测飞行高度的场致发射传感器的滑块。 传感器具有设置在滑块上的电极头。 电极尖端跨越间隙面向介质表面。 传感器通过间隙传导隧穿电流,并提供表示间隙长度的输出。 执行器调节飞行高度间距。 反馈电路提供致动器电输入作为传感器输出的反馈功能以控制飞行高度间隔。

    Laterally supported handle wafer for through-wafer reactive-ion etch micromachining
    7.
    发明授权
    Laterally supported handle wafer for through-wafer reactive-ion etch micromachining 失效
    用于通过晶片反应离子蚀刻微加工的侧面支撑的处理晶片

    公开(公告)号:US06733681B1

    公开(公告)日:2004-05-11

    申请号:US09707698

    申请日:2000-11-07

    IPC分类号: B81C100

    摘要: A method of handling a wafer for through-wafer plasma etching includes lateral support provided between a handle wafer and a product wafer without wafer bonding or an adhesive film using mating mechanical structures. The product wafer is easily separated from the handle wafer following etching without stripping or cleaning. Because the connection between the wafers is mechanical, not from an adhesive layer/bonded layer, a wafer can be etched, inspected, and subsequently continue to be etched without the hindrance of repeated bonding, separation, and cleaning. A non-bonded support for released devices following a through-etch process is also provided.

    摘要翻译: 用于晶圆等离子体蚀刻处理晶片的方法包括在晶片接合之间提供的手柄晶片和产品晶片之间的侧向支撑,或者使用配合机械结构的粘合膜。 在没有剥离或清洁的情况下,产品晶片在蚀刻之后容易地与处理晶片分离。 因为晶片之间的连接是机械的,而不是粘合层/接合层,所以可以蚀刻,检查晶片并且随后继续蚀刻晶片,而不会重复地进行接合,分离和清洁。 还提供了在通过蚀刻工艺之后的释放器件的非接合支撑。

    Method of fabricating electrically isolated metal MEMS beams and microactuator incorporating the MEMS beam
    8.
    发明授权
    Method of fabricating electrically isolated metal MEMS beams and microactuator incorporating the MEMS beam 有权
    制造电隔离金属MEMS光束的方法和结合MEMS光束的微型致动器

    公开(公告)号:US06674614B2

    公开(公告)日:2004-01-06

    申请号:US10037679

    申请日:2002-01-02

    IPC分类号: G11B2124

    CPC分类号: G11B5/5552

    摘要: A microactuator is formed by defining stator and rotor regions on a wafer. Isolation barriers are formed in the stator and rotor regions to define a isolation regions. Conductive suspension beam are formed between the first and second isolation regions, and wafer material between the stator and rotor regions is removed to form a stator and a rotor. The microactuator is arranged to position a load device having an electrical component. The suspension beams support the rotor and load device and provide electrical connection between the stator and rotor for the microactuator and/or the load device.

    摘要翻译: 通过在晶片上限定定子和转子区域来形成微致动器。 在定子和转子区域中形成隔离屏障,以限定隔离区域。 在第一和第二隔离区域之间形成导电悬架梁,并且去除定子和转子区域之间的晶片材料以形成定子和转子。 微型致动器布置成定位具有电气部件的负载装置。 悬架梁支撑转子和负载装置,并为微型致动器和/或负载装置提供定子和转子之间的电连接。

    Seal for micro-electro-mechanical devices
    9.
    发明授权
    Seal for micro-electro-mechanical devices 有权
    微电机械密封

    公开(公告)号:US06590747B1

    公开(公告)日:2003-07-08

    申请号:US09507136

    申请日:2000-02-18

    IPC分类号: G11B555

    CPC分类号: G11B5/5552

    摘要: A sealed micro-actuator device for positioning a slider in a disc drive comprises a micro-actuator body, which includes a stator, a rotor, and a motor for moving the rotor with respect to the stator. The micro-actuator device includes means for sealing the micro-actuator body to prevent debris from reaching the motor. In a preferred embodiment, the means for sealing comprises a plurality of cavities formed in the micro-actuator body and an injection molded polymer seal with a plurality of protrusions that extend into the plurality of cavities. A first subset of the plurality of protrusions make contact with the stator, thereby holding the means for sealing in place. A second subset of the plurality of protrusions extend into cavities formed in the rotor. The second subset of protrusions does not contact the rotor. In an alternative preferred embodiment, a first and a second surface of the rotor are recessed from a first and a second surface of the stator, and the means for sealing comprises a first flexible film heat sealed to the first surface of the stator and a second flexible film heat sealed to the second surface of the stator. In another alternative embodiment, a sealed actuator is incorporated into a slider of a disc drive. The slider comprises a slider body, a data transfer element, and an actuator. The data transfer element transfers data to or from a magnetic medium. The actuator is coupled between the slider body and the data transfer element. The actuator is operable to move the data transfer element relative to the slider body. The slider includes sealing means to prevent debris from reaching the actuator.

    摘要翻译: 用于将滑块定位在盘驱动器中的密封微致动器装置包括微致动器本体,其包括定子,转子和用于相对于定子移动转子的电动机。 微致动器装置包括用于密封微致动器主体以防止碎片到达马达的装置。 在优选实施例中,用于密封的装置包括形成在微致动器本体中的多个空腔和具有延伸到多个空腔中的多个突起的注塑聚合物密封件。 多个突起的第一子集与定子接触,从而将用于密封的装置保持在适当位置。 多个突起的第二子集延伸到形成在转子中的空腔中。 突起的第二子集不接触转子。 在替代的优选实施例中,转子的第一和第二表面从定子的第一和第二表面凹入,并且用于密封的装置包括热密封到定子的第一表面的第一柔性膜, 热定形的第二表面热密封的柔性薄膜。 在另一替代实施例中,将密封的致动器并入盘驱动器的滑块中。 滑块包括滑块体,数据传送元件和致动器。 数据传输元件将数据传送到磁介质或从磁介质传送数据。 致动器联接在滑块体和数据传送元件之间。 致动器可操作以相对于滑块体移动数据传送元件。 滑块包括密封装置,以防止碎屑到达致动器。