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21. 发明授权

US08717702B2 Measurement of spacing fluctuation 有权
标题翻译：间距波动测量
公开(公告)号：US08717702B2
公开(公告)日：2014-05-06
申请号：US13424617
申请日：2012-03-20
申请人： Qinghua Zeng , Ellis Cha , Soramany Ka
发明人： Qinghua Zeng , Ellis Cha , Soramany Ka
IPC分类号： G11B21/02
CPC分类号： G11B5/607 , G11B5/455 , G11B5/6076
摘要： A method for determining the surface distortions of a disk in a spin-stand or single or multiple disk hard disk drive (HDD) utilizing a DFH type write head. A stepwise power curve is supplied to the DFH head, the head is flown over a chosen track on the disk, and the high frequency signal from a HDI sensor is analyzed in order to determine the step of an initial touchdown power and the step of a complete touchdown power as a function of individual sectors in a sector subdivision along a chosen track. The HDI sensor signal is averaged within each step of the power curve between these two steps and a Ratio variable, Ratio=(Max. amplitude)/(RMS amplitude) is calculated for each step and is averaged over each rotation of the disk during the step.
摘要翻译：一种用于使用DFH型写入头来确定旋转台或单个或多个盘式硬盘驱动器（HDD）中的盘的表面失真的方法。向DFH头提供逐级功率曲线，头部在盘上的所选轨道上飞行，并且分析来自HDI传感器的高频信号，以便确定初始接地功率的步长和作为沿着所选轨道的扇区细分中的各个扇区的功能的完全触地功率。在这两个步骤之间的功率曲线的每个步长内对HDI传感器信号进行平均，并为每个步骤计算Ratio变量Ratio =（最大振幅）/（RMS幅度），并在步。

22. 发明授权

US07701672B2 Suspension with locally stiffened load beam 有权
标题翻译：悬挂与局部加强的负载梁
公开(公告)号：US07701672B2
公开(公告)日：2010-04-20
申请号：US11454647
申请日：2006-06-16
申请人： Qinghua Zeng , Chao-Hui Yang , Yen Fu , Ellis Cha
发明人： Qinghua Zeng , Chao-Hui Yang , Yen Fu , Ellis Cha
IPC分类号： G11B5/48
CPC分类号： G11B5/4833 , G11B5/5582
摘要： A loadbeam is locally stiffened by either, 1. the addition of strategically placed extra material to the loadbeam, 2. not removing material during the etching process to form the loadbeam, or 3. special forming, by crimping or bending, at specific sites on the beam. The use of local stiffening, when placed about the loadbeam dimple or between the dimple and flexure attachment points, with or without additional damping, can significantly improve the dynamical response of the loadbeam and eliminate vibrational modes of a slider mounted on the loadbeam during HDI interactions with disk surface asperities during disk drive operation.
摘要翻译：负载梁由以下两者局部加强：1.向负载梁添加策略性放置的额外材料，2.在蚀刻过程中不去除材料以形成载荷梁，或3.通过卷曲或弯曲在特定位置上进行特殊成形梁。使用局部加强，当放置在负载梁凹坑下方，或者在凹坑和挠曲附着点之间，在有或没有附加阻尼的情况下，可以显着改善载荷梁的动力响应，并消除在HDI相互作用期间安装在载荷梁上的滑块的振动模式在磁盘驱动器操作期间具有磁盘表面粗糙度。

23. 发明申请

US20090009911A1 Suspension With Locally Strengthened Gimbal 有权
标题翻译：暂停与当地加强的万向节
公开(公告)号：US20090009911A1
公开(公告)日：2009-01-08
申请号：US11774512
申请日：2007-07-06
申请人： Chao-Hui Yang , Qinghua Zeng , Yen Fu , Ellis T. Cha
发明人： Chao-Hui Yang , Qinghua Zeng , Yen Fu , Ellis T. Cha
IPC分类号： G11B5/48
CPC分类号： G11B5/4826
摘要： An apparatus with a head gimbal assembly designed to reduce movement and rotation of components of the head gimbal assembly structure is disclosed. One embodiment head gimbal assembly may comprise a flexure including a ramp limiter, a suspension assembly further comprising a suspension tongue, a slider further comprising a magnetic head; and a load beam further comprising a lift tab; and a ramp further comprising a step to engage and support the ramp limiter and support and constrain the movement of the slider. In certain embodiments, the flexure may further comprise a flexure rail located at its end to reduce movement and rotation of the suspension tongue.
摘要翻译：公开了一种具有头部万向节组件的装置，其被设计成减小头部万向节组件结构的部件的移动和旋转。一个实施例的头万向架组件可以包括包括斜坡限制器的挠曲件，还包括悬挂舌的悬架组件，还包括磁头的滑块; 以及进一步包括升降翼的负载梁; 以及斜坡，还包括接合和支撑斜坡限制器并支撑和限制滑动件运动的步骤。在某些实施例中，挠曲件还可以包括位于其端部处的挠性轨道，以减少悬挂舌片的运动和旋转。

24. 发明申请

US20080225437A1 Head gimbal assembly with low head disk interaction response 审中-公开
标题翻译：头部万向节组件，低磁头相互作用响应
公开(公告)号：US20080225437A1
公开(公告)日：2008-09-18
申请号：US11725004
申请日：2007-03-16
申请人： Yen Fu , Qinghua Zeng , Ellis T. Cha , Hong Tian
发明人： Yen Fu , Qinghua Zeng , Ellis T. Cha , Hong Tian
IPC分类号： G11B17/32 , G11B5/60
CPC分类号： G11B5/455 , G11B5/4833 , G11B5/5582
摘要： Methods and an apparatus for producing a head gimbal assembly with minimum dynamic response and air bearing resonance during flight (e.g., head-disk contact), thereby minimizing disruptions in the desired uniformity of flying height, are described. Embodiment head gimbal assemblies may comprise at least one air bearing surface of a slider and at least one suspension assembly wherein the at least one air bearing surface of the slider and the at least one suspension assembly are individually modeled. In addition, one of the at least one air bearing surface of the slider and one of the at least one suspension assembly may be matched to minimize air bearing resonance and system dynamic response.
摘要翻译：描述了在飞行期间产生具有最小动态响应和空气轴承共振（例如头盘接触）的头万向节组件的方法和装置，从而最小化飞行高度的期望均匀性的破坏。实施例头万向架组件可以包括滑块的至少一个空气支承表面和至少一个悬架组件，其中滑块和至少一个悬架组件的至少一个空气支承表面被分别建模。此外，滑块的至少一个空气支承表面中的一个和至少一个悬架组件中的一个可以匹配，以使空气轴承共振和系统动态响应最小化。

25. 发明申请

US20080030900A1 Suspension gimbal designs with better dynamic performances 有权
标题翻译：悬架万向节设计具有更好的动态性能
公开(公告)号：US20080030900A1
公开(公告)日：2008-02-07
申请号：US11497161
申请日：2006-08-01
申请人： Qinghua Zeng , Chao-Hui Yang , Yen Fu , Ellis Cha
发明人： Qinghua Zeng , Chao-Hui Yang , Yen Fu , Ellis Cha
IPC分类号： G11B5/60 , G11B15/64 , G11B21/16
CPC分类号： G11B5/4826
摘要： Gimbal designs are provided that minimize adverse dynamic performance of a HDD suspension, particularly subsequent to head-disk-interface (HDI) interactions. The improvement of operational performance can be seen in graphical representations of the vibrational modes of a gimbal mounted slider subsequent to such HDI interactions. Each gimbal design includes a ramp limiter formed as two separated arms connected by one or two transverse bars and a routing of conducting traces that relieves stress and minimally contacts these bars.
摘要翻译：提供了云台设计，可以最大程度地降低HDD悬架的不利动态性能，特别是在磁头 - 磁盘接口（HDI）交互之后。在这种HDI相互作用之后，万向节安装的滑块的振动模式的图形表示可以看出操作性能的改善。每个万向节设计包括斜坡限制器，其形成为通过一个或两个横向杆连接的两个分离的臂，以及减轻应力并最小程度地接触这些杆的导电迹线的布线。

26. 发明授权

US06958871B2 Head-disk interaction sensor integrated with suspension 有权
公开(公告)号：US06958871B2
公开(公告)日：2005-10-25
申请号：US10664295
申请日：2003-09-17
申请人： Toshiki Hirano , Ullal Vasant Nayak , Qinghua Zeng
发明人： Toshiki Hirano , Ullal Vasant Nayak , Qinghua Zeng
IPC分类号： G11B21/21 , G11B5/60 , G11B19/04 , G11B27/36
CPC分类号： G11B5/6005 , G11B5/59694
摘要： A write-inhibit signal is generated by a head-disk interaction sensor during a write process that is integrated with a suspension of a hard disk drive (HDD) when fly-height modulation of the slider is detected during a write process The suspension load beam includes a dimple and a laminated flexure. The laminated flexure includes a surface that is adapted to receive a slider and a surface that is adapted to contact the dimple. The head-disk interaction sensor is fabricated as part of the laminations of the flexure. The head-disk interaction sensor can be an accelerometer that senses an acceleration of the flexure when the slider contacts the disk of the disk drive and/or a pressure sensor that senses a pressure between the flexure and the dimple when the slider contacts the disk. A write-inhibit circuit is responsive to the sensor signal by inhibiting the write process.

27. 发明授权

US08638528B2 Slider air bearing for mobile drives 有权
标题翻译：滑块空气轴承用于移动驱动器
公开(公告)号：US08638528B2
公开(公告)日：2014-01-28
申请号：US11351824
申请日：2006-02-09
申请人： Qinghua Zeng
发明人： Qinghua Zeng
IPC分类号： G11B5/60
CPC分类号： G11B5/6005
摘要： Embodiments of the present invention include a head slider for a magnetic disk drive. The head slider comprises a first recess on the air bearing surface of the head slider. The head slider further comprises a second recess on the air bearing surface, wherein the first recess is deeper than the second recess and is closer to the leading edge than the second recess and wherein the second recess is closer to the trailing edge than the first recess.
摘要翻译：本发明的实施例包括用于磁盘驱动器的磁头滑块。磁头滑动器包括在磁头滑动器的空气支承表面上的第一凹部。磁头滑动器还包括在空气轴承表面上的第二凹部，其中第一凹部比第二凹部更深，并且比第二凹部更靠近前缘，并且其中第二凹部比第一凹部更靠近后缘。

28. 发明授权

US08248729B2 Slider with hook-shaped air compression mechanisms near trailing edge corners 失效
标题翻译：带有钩形空气压缩机构的滑块靠近后缘拐角
公开(公告)号：US08248729B2
公开(公告)日：2012-08-21
申请号：US11601523
申请日：2006-11-16
申请人： Weidong Huang , Robert N. Payne , Qinghua Zeng
发明人： Weidong Huang , Robert N. Payne , Qinghua Zeng
IPC分类号： G11B21/21 , G11B5/60
CPC分类号： G11B5/6082
摘要： Embodiments of the present invention pertain to reducing the probability of a slider contacting a surface of a disk. According to one embodiment, a first etch is performed on the slider. Air compression mechanisms are created near each corner associated with a trailing edge of the slider so that the probability that the corners will contact the surface of the disk is reduced.
摘要翻译：本发明的实施例涉及降低滑块接触盘表面的可能性。根据一个实施例，在滑块上执行第一蚀刻。在与滑块的后缘相关联的每个角附近产生空气压缩机构，使得拐角将接触盘的表面的可能性降低。

29. 发明申请

US20110299196A1 Suspension gimbal designs with better dynamic performances 有权
标题翻译：悬架万向节设计具有更好的动态性能
公开(公告)号：US20110299196A1
公开(公告)日：2011-12-08
申请号：US13136914
申请日：2011-08-15
申请人： Qinghua Zeng , Chao-Hui Yang , Yen Fu , Ellis Cha
发明人： Qinghua Zeng , Chao-Hui Yang , Yen Fu , Ellis Cha
IPC分类号： G11B21/16
CPC分类号： G11B5/4826
摘要： Gimbal designs are provided that minimize adverse dynamic performance of a HDD suspension, particularly subsequent to head-disk-interface (HDI) interactions. The improvement of operational performance can be seen in graphical representations of the vibrational modes of a gimbal mounted slider subsequent to such HDI interactions. Each gimbal design includes a ramp limiter formed as two separated arms connected by one or two transverse bars and a routing of conducting traces that relieves stress and minimally contacts these bars.
摘要翻译：提供了云台设计，可以最大程度地降低HDD悬架的不利动态性能，特别是在磁头 - 磁盘接口（HDI）交互之后。在这种HDI相互作用之后，万向节安装的滑块的振动模式的图形表示可以看出操作性能的改善。每个万向节设计包括斜坡限制器，其形成为通过一个或两个横向杆连接的两个分离的臂，以及减轻应力并最小程度地接触这些杆的导电迹线的布线。

30. 发明授权

US07885040B2 Suspension with locally strengthened gimbal 有权
标题翻译：暂停与当地加强的万向节
公开(公告)号：US07885040B2
公开(公告)日：2011-02-08
申请号：US11774512
申请日：2007-07-06
申请人： Chao-Hui Yang , Qinghua Zeng , Yen Fu , Ellis T. Cha
发明人： Chao-Hui Yang , Qinghua Zeng , Yen Fu , Ellis T. Cha
IPC分类号： G11B5/55
CPC分类号： G11B5/4826
摘要： An apparatus with a head gimbal assembly designed to reduce movement and rotation of components of the head gimbal assembly structure is disclosed. One embodiment head gimbal assembly may comprise a flexure including a ramp limiter, a suspension assembly further comprising a suspension tongue, a slider further comprising a magnetic head; and a load beam further comprising a lift tab; and a ramp further comprising a step to engage and support the ramp limiter and support and constrain the movement of the slider. In certain embodiments, the flexure may further comprise a flexure rail located at its end to reduce movement and rotation of the suspension tongue.
摘要翻译：公开了一种具有头部万向节组件的装置，其被设计成减小头部万向节组件结构的部件的移动和旋转。一个实施例的头万向架组件可以包括包括斜坡限制器的挠曲件，还包括悬挂舌的悬架组件，还包括磁头的滑块; 以及进一步包括升降翼的负载梁; 以及斜坡，还包括接合和支撑斜坡限制器并支撑和限制滑动件运动的步骤。在某些实施例中，挠曲件还可以包括位于其端部处的挠性轨道，以减少悬挂舌片的运动和旋转。

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