公开(公告)号：US07617737B2

公开(公告)日：2009-11-17

申请号：US11644309

申请日：2006-12-21

申请人： Li-Yan Zhu ,  Chao-Hui Yang ,  Yen Fu ,  Ellis T. Cha

发明人： Li-Yan Zhu ,  Chao-Hui Yang ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G01L1/24

CPC分类号： G11B5/4826 ,  G11B5/455 ,  G11B5/6011

摘要： In a system and method for adjusting a static torque on a slider in a head-gimbal assembly, a substantially rigid mass is placed on an air-bearing surface (ABS) of a slider. A static attitude of the slider is measured, and an adjustment location and intensity for a flexure to yield a zero slider static attitude are calculated. The flexure is adjusted based on the measurement and calculations.

摘要翻译： 在用于调节头部万向节组件中的滑块上的静态扭矩的系统和方法中，基本上刚性的质量被放置在滑块的空气轴承表面（ABS）上。 测量滑块的静态姿势，并且计算弯曲的调整位置和强度以产生零滑块静态姿态。 基于测量和计算来调整挠曲。

公开(公告)号：US06989671B2

公开(公告)日：2006-01-24

申请号：US10342780

申请日：2003-01-14

申请人： Li-Yan Zhu ,  Xiaofeng Zhang ,  Yen Fu ,  Ellis T. Cha

发明人： Li-Yan Zhu ,  Xiaofeng Zhang ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G01R33/12

CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/40 ,  G11B5/455 ,  G11B5/5534 ,  G11B5/596 ,  G11B5/6076 ,  G11B27/36 ,  G11B2005/001 ,  G11B2220/20

摘要： A method is described for calculating head disk interference (HDI) using a dynamic parametric test. In one embodiment, HDI is calculated based on an actual and ideal sensitivity profile based on a read-back signal track profile for the slider/head.

摘要翻译： 描述了一种使用动态参数测试来计算头盘干扰（HDI）的方法。 在一个实施例中，基于用于滑块/头的回读信号轨迹轮廓，基于实际和理想灵敏度轮廓计算HDI。

公开(公告)号：US5677812A

公开(公告)日：1997-10-14

申请号：US598790

申请日：1996-01-26

申请人： Ellis T. Cha

发明人： Ellis T. Cha

IPC分类号： F16C17/00 ,  G11B5/60

CPC分类号： G11B5/6005

摘要： An air bearing slider that maintains a relatively uniform flying height during variations in air speed and the skew of the slider. The slider has a raised rail disposed along the bottom surface of the slider body that forms a cavity. The cavity is configured to produce a subambient pressure when an air flow passes across the slider. The rail possesses a plurality of air bearing surfaces and has an opening positioned along the inner side of the slider. The opening is positioned and sized to provide a variable air flow into the cavity as the skew angle between the longitudinal axis of the slider and the direction of air flow changes. In this manner, a variable subambient pressure is developed within the cavity as the slider moves radially along the surface of a disk.

摘要翻译： 空气轴承滑块，其在空气速度的变化和滑块的偏斜期间保持相对均匀的飞行高度。 滑块具有沿着滑块体的底表面设置的凸起轨道，该凸台形成空腔。 空腔被配置为当空气流穿越滑块时产生次环压。 轨道具有多个空气轴承表面，并且具有沿着滑块的内侧定位的开口。 开口的定位和尺寸设置成当滑块的纵向轴线和空气流动方向改变之间的倾斜角度时向空腔提供可变气流。 以这种方式，当滑块沿着盘的表面径向移动时，在空腔内形成可变的低于环境的压力。

公开(公告)号：US5497085A

公开(公告)日：1996-03-05

申请号：US358282

申请日：1994-12-19

申请人： Hong Tian ,  Jia-Kuen J. Lee ,  Ellis T. Cha

发明人： Hong Tian ,  Jia-Kuen J. Lee ,  Ellis T. Cha

IPC分类号： G11B21/21 ,  G11B5/60 ,  G11B5/84

CPC分类号： G11B5/6005

摘要： A method is shown for testing a magnetic disk to be used in a disk drive. The method includes the steps of measuring a height profile of an outer radial edge of the disk, using the profile to determine a slope value for each of a pair of radial segments of the disk, calculating a difference value between the slope values of the pair, comparing the difference value to a preselected threshold difference value and indicating when the difference value is equal to or less than the threshold difference value. The threshold value indicates an outer most diameter of the disk where fly height operation for a head is still stable.

摘要翻译： 显示了一种用于测试在磁盘驱动器中使用的磁盘的方法。 该方法包括以下步骤：使用轮廓来测量盘的外径向边缘的高度轮廓，以确定盘的一对径向段中的每一个的斜率值，计算该对的斜率值之间的差值 将差分值与预先选择的阈值差值进行比较，并指示差值等于或小于阈值差值。 阈值表示磁头的飞行高度操作仍然稳定的磁盘的最外径。

公开(公告)号：US07760468B2

公开(公告)日：2010-07-20

申请号：US11110153

申请日：2005-04-19

申请人： Ellis T. Cha ,  Guoqiang Zheng ,  Sindy Yeung

发明人： Ellis T. Cha ,  Guoqiang Zheng ,  Sindy Yeung

IPC分类号： G11B5/60

CPC分类号： G11B5/6082

摘要： An apparatus allowing for a slider for use in a disk drive is disclosed. An embodiment of the present invention may include a leading side, a trailing side, at least two main rails, a slider surface with an air bearing surface, and at least one trench substantially parallel to the width of the slider. The trench in the air bearing surface results in a lower compression length of the slider and allows for particles to be channeled off of the disk surface.

摘要翻译： 公开了一种允许在盘驱动器中使用的滑块的装置。 本发明的实施例可以包括前侧，后侧，至少两个主轨道，具有空气轴承表面的滑块表面，以及基本上平行于滑块的宽度的至少一个沟槽。 空气轴承表面中的沟槽导致滑块的较低压缩长度，并允许颗粒从盘表面引出。

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。

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。

公开(公告)号：US20080123214A1

公开(公告)日：2008-05-29

申请号：US11605741

申请日：2006-11-28

申请人： Li-Yan Zhu ,  Chao-Hui Yang ,  Yen Fu ,  Ellis T. Cha

发明人： Li-Yan Zhu ,  Chao-Hui Yang ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G11B21/02

CPC分类号： G11B5/581 ,  G11B5/6029 ,  G11B5/6035

摘要： In a system and method for a non-contact measurement of the fly height of a slider above a magnetic data storage medium using electrostatic force, a slider with a read/write head flies over a magnetic data storage medium. A series of distinct voltages are applied between the slider and the magnetic data storage medium, and corresponding read-back signals are recorded. Using the recorded read-back signals, coefficients for an empirical curve-fit equation are calculated. The coefficients are normalized and converted into a fly height measurement.

公开(公告)号：US07342750B2

公开(公告)日：2008-03-11

申请号：US10870082

申请日：2004-06-16

申请人： Chao-Hui Yang ,  Yen Fu ,  Li-Yan Zhu ,  Manny Hernandez ,  Ellis T. Cha ,  Yong Luo

发明人： Chao-Hui Yang ,  Yen Fu ,  Li-Yan Zhu ,  Manny Hernandez ,  Ellis T. Cha ,  Yong Luo

IPC分类号： G11B5/48

CPC分类号： G11B5/486 ,  G11B5/484 ,  H05K1/0228 ,  H05K1/056 ,  H05K3/4685 ,  H05K2201/09554 ,  H05K2201/0969 ,  H05K2201/097

摘要： An externally wireless laminated suspension for a hard disk drive are disclosed. In one embodiment, the externally wireless laminated suspension has an insulating layer to electrically isolate a first and second electrical trace from a conductive support layer. The second electrical trace crosses over the first electrical trace. The first electrical trace may be made of a first part on one side of the second electrical trace and a second part on the opposite side of the electrical trace. A conductive island area may be patterned into the support layer. The conductive island area may electrically couple the first part of the first electrical trace to the second part. The number of crossover points that the first electrical trace has may equal the number of crossover points that the second electrical trace has.

摘要翻译： 公开了一种用于硬盘驱动器的外部无线层叠悬架。 在一个实施例中，外部无线层叠悬架具有绝缘层，以将第一和第二电迹线与导电支撑层电隔离。 第二电迹线穿过第一电迹线。 第一电迹线可以由第二电迹线的一侧上的第一部分和在电迹线的相对侧上的第二部分制成。 导电岛区域可以被图案化成支撑层。 导电岛区域可以将第一电迹线的第一部分电耦合到第二部分。 第一电迹线具有的交叉点的数量可以等于第二电迹线具有的交叉点的数量。

公开(公告)号：US06831814B2

公开(公告)日：2004-12-14

申请号：US09122472

申请日：1998-07-24

申请人： Ellis T. Cha

发明人： Ellis T. Cha

IPC分类号： G11B2116

CPC分类号： G11B5/54

摘要： A flexure design is provided that can focus the lifting force on a slider device at its leading edge. For sub-ambient pressure sliders, this results in an rapid increase in pressure in the sub-ambient pressure area causing the slider device to quickly lift off from the disk surface in a ramp unload disk drive. In one embodiment, first and second outriggers are provided in the flexure that each include a section that extends distally and a section that extends proximally. The sections of the outriggers that extend proximally can be joined and coupled to a tab section slider which would be located at the leading edge of the slider.

摘要翻译： 提供了一种弯曲设计，其可以将提升力集中在其前缘的滑块装置上。 对于亚环境压力滑块，这导致副环境压力区域中的压力快速增加，导致滑块装置在斜坡卸载盘驱动器中从盘表面快速地离开。 在一个实施例中，第一和第二外伸支架设置在挠曲件中，每个包括向远侧延伸的部分和向近侧延伸的部分。 外伸支架向近端延伸的部分可以接合并联接到将位于滑动件的前缘处的突出部分滑块。