公开(公告)号：US08446695B1

公开(公告)日：2013-05-21

申请号：US12858643

申请日：2010-09-13

申请人： Kuen Chee Ee ,  Peter Hahn ,  Brett Holaway

发明人： Kuen Chee Ee ,  Peter Hahn ,  Brett Holaway

IPC分类号： G11B5/48

CPC分类号： G11B5/4833 ,  G11B5/4826 ,  G11B5/486

摘要： For decreased pitch and roll stiffness, a ring gimbal suspension for a hard disk drive has torsion arms that extend toward the distal end of the suspension as they extend inward from the gimbal outer arms toward the slider bond pad. The torsion arms connect to the slider bond pad at a location that is distal of the dimple contact point. The electrical circuit traces are generally free of stainless steel except where the circuit traces cross the torsion arms, at which point they are affixed to the torsion arms. The electrical circuit traces can include an outward meander away from the slider bond pad as the traces pass over the torsion arms, for additional reduction in stiffness.

摘要翻译： 为了降低俯仰和侧倾刚度，用于硬盘驱动器的环式万向架悬架具有扭转臂，当它们从万向架外臂朝向滑块接合垫向内延伸时，该扭转臂朝向悬架的远端延伸。 扭臂在凹陷接触点的远侧的位置处连接到滑块接合焊盘。 电路迹线通常不含不锈钢，除了电路迹线穿过扭转臂，此时它们固定在扭转臂上。 当轨迹经过扭转臂时，电路迹线可以包括远离滑块接合焊盘的向外的曲折，以进一步降低刚度。

公开(公告)号：US08441761B1

公开(公告)日：2013-05-14

申请号：US12983613

申请日：2011-01-03

申请人： Peter Hahn ,  Wei Keat Chai ,  Kuen Chee Ee

发明人： Peter Hahn ,  Wei Keat Chai ,  Kuen Chee Ee

IPC分类号： G11B5/60 ,  G11B21/21

CPC分类号： G11B5/4826 ,  G11B5/4833

摘要： In a disk drive suspension circuit, in order to improve stability of the stable pitch static attitude (PSA) over changes in humidity, the suspended portion of the flexible circuit and/or the gimbal support arm are modified to change their response(s) to humidity. In one embodiment, hygroscopic material such as the material of the insulating layer are added to the stainless steel gimbal support arm, so that in response to humidity it bends in the opposite direction as the suspended portion of the circuit. In another embodiment, additional hygroscopic material is added to the circuit, and/or the polyimide insulating layer or the coverlayer are selectively removed, so that the net bend in the suspended portion of the circuit over humidity is reduced, ideally to a condition of zero or close to zero net bending.

摘要翻译： 在磁盘驱动器悬架电路中，为了提高稳定的俯仰静止姿态（PSA）与湿度变化的稳定性，柔性电路和/或万向支撑臂的悬挂部分被修改以将其响应改变为 湿度。 在一个实施例中，诸如绝缘层材料的吸湿材料被添加到不锈钢万向架支撑臂中，使得响应于湿度，其沿与电路的悬挂部分相反的方向弯曲。 在另一个实施例中，附加的吸湿材料被添加到电路中，和/或选择性地去除聚酰亚胺绝缘层或覆盖层，使得在湿度下电路悬挂部分的净弯曲减小，理想地为零 或接近零净弯。

公开(公告)号：US08570688B1

公开(公告)日：2013-10-29

申请号：US13287094

申请日：2011-11-01

申请人： Peter Hahn ,  Kuen Chee Ee

发明人： Peter Hahn ,  Kuen Chee Ee

IPC分类号： G11B5/55 ,  G11B21/24

CPC分类号： G11B5/4873 ,  G11B5/483 ,  G11B5/486 ,  H01L2224/40

摘要： In a disk drive suspension circuit, an electrical contact from a flexible circuit to a face of a PZT microactuator is provided by a mechanical bias to press a contact pad of the flexible circuit against the PZT surface. The mechanical bias is provided by a piece of stainless steel that is welded to a nearby point or points on the suspension, and which biases the electrical contact pad carrying the PZT driving voltage against the PZT. The piece of stainless steel may be in the form of a flat piece welded on one or more sides of the contact pad, and may include a dimple for pressing against the contact pad. Additional insulation material may be provided between the dimple and the contact pad to prevent the dimple from penetrating through the flexible circuit's cover layer and shorting the driving voltage.

摘要翻译： 在磁盘驱动器悬架电路中，通过机械偏置来提供从柔性电路到PZT微致动器的面的电接触，以将柔性电路的接触垫压靠PZT表面。 机械偏置由一块不锈钢提供，焊接到悬架上的附近点或点上，并且偏压带有PZT驱动电压的电接触垫对着PZT。 不锈钢片可以是焊接在接触垫的一个或多个侧面上的扁平件的形式，并且可以包括用于压靠接触垫的凹坑。 可以在凹坑和接触垫之间提供附加的绝缘材料，以防止凹坑穿透柔性电路的覆盖层并使驱动电压短路。

公开(公告)号：US08049995B1

公开(公告)日：2011-11-01

申请号：US12344429

申请日：2008-12-26

申请人： Kuen Chee Ee ,  Peter Hahn

发明人： Kuen Chee Ee ,  Peter Hahn

IPC分类号： G11B5/48

CPC分类号： G11B5/4813

摘要： A method of designing a hard disk drive suspension swage hub geometry for an actuator arm having upper and lower suspensions attached thereto, includes using a finite element analysis model to simulate the effects of swaging the suspensions to the actuator arm, identifying relevant geometric parameters of the suspensions, for each suspensions performing a linear regression to fit an equation containing the geometric parameters to a normal force of the suspension to the actuator arm after swaging according to the fine element analysis, identifying a desired range of differences between the normal forces, using the desired difference range, and solving for values of geometric parameters to produce a set of target design parameters for the suspension swage hubs.

摘要翻译： 设计用于具有连接到其上的上悬架和下悬架的致动器臂的硬盘驱动器悬挂挤压毂几何形状的方法包括使用有限元分析模型来模拟将悬架模型到致动器臂的影响，识别相关的几何参数 悬架，对于执行线性回归的每个悬架，根据精细元件分析，在模型之后，将包含几何参数的方程拟合到致动器臂的法向力，以识别正常力之间的期望差异范围，使用 期望的差异范围，以及求解几何参数的值以产生用于悬挂挤压轮毂的一组目标设计参数。

公开(公告)号：US08559138B1

公开(公告)日：2013-10-15

申请号：US13530522

申请日：2012-06-22

申请人： Peter Hahn ,  Wei Keat Chai ,  Kuen Chee Ee

发明人： Peter Hahn ,  Wei Keat Chai ,  Kuen Chee Ee

IPC分类号： G11B21/24 ,  G11B5/596

CPC分类号： G11B5/4873

摘要： A dual stage actuator (DSA) suspension has a single microactuator such as a PZT element on one side of central longitudinal axis of the suspension, and a pseudo symmetry structure formed or affixed on the other side of the central longitudinal axis opposite the PZT. The pseudo symmetry structure has mass and stiffness that mirrors the PZT, thus keeping the suspension mechanically balanced and symmetric about the longitudinal axis for improved suspension performance especially in a shock environment.

摘要翻译： 双级致动器（DSA）悬架在悬架的中心纵轴的一侧具有单个微致动器，例如PZT元件，以及形成或固定在与PZT相对的中心纵轴的另一侧上的伪对称结构。 伪对称结构具有反映PZT的质量和刚度，从而保持悬架在纵轴上机械平衡和对称，以改善悬架性能，特别是在冲击环境中。

公开(公告)号：US08228642B1

公开(公告)日：2012-07-24

申请号：US12705980

申请日：2010-02-16

申请人： Peter Hahn ,  Wei Keat Chai ,  Kuen Chee Ee

发明人： Peter Hahn ,  Wei Keat Chai ,  Kuen Chee Ee

IPC分类号： G11B21/24 ,  G11B5/596

CPC分类号： G11B5/4873

摘要： A dual stage actuator (DSA) suspension has a single microactuator such as a PZT element on one side of central longitudinal axis of the suspension, and a pseudo symmetry structure formed or affixed on the other side of the central longitudinal axis opposite the PZT. The pseudo symmetry structure has mass and stiffness that mirrors the PZT, thus keeping the suspension mechanically balanced and symmetric about the longitudinal axis for improved suspension performance especially in a shock environment.

摘要翻译： 双级致动器（DSA）悬架在悬架的中心纵轴的一侧具有单个微致动器，例如PZT元件，以及形成或固定在与PZT相对的中心纵轴的另一侧上的伪对称结构。 伪对称结构具有反映PZT的质量和刚度，从而保持悬架在纵轴上机械平衡和对称，以改善悬架性能，特别是在冲击环境中。

公开(公告)号：US08107198B1

公开(公告)日：2012-01-31

申请号：US12469530

申请日：2009-05-20

申请人： Kuen Chee Ee

发明人： Kuen Chee Ee

IPC分类号： G11B21/16

CPC分类号： G11B21/16 ,  G11B5/4826

摘要： In a disk drive suspension, a gimbal is longitudinally moment-balanced about the dimple to improve shock performance by adding weight to one side of the gimbal and/or by removing weight from the other side of the gimbal, such that when the suspension experiences an operational shock the gimbal the gimbal tends to stay level with the disk surface and not pitch relative to the disk surface. The gimbal may be moment balanced by leaving or depositing on the suspension's limiter tab the same insulative material as is used to form the flexible circuit, by increasing the mass of the limiter tab, and/or by reducing the size of the detabs or the trailing edge, or by other means.

摘要翻译： 在磁盘驱动器悬架中，万向节在凹坑周围纵向平衡，以通过向万向节的一侧增加重量和/或通过从万向架的另一侧移除重量来改善冲击性能，使得当悬架经历 万向架的万向架的操作冲击倾向于与盘表面保持水平，而不是相对于盘表面的俯仰。 通过将悬架的限制器片悬挂或沉积在与用于形成柔性电路的相同的绝缘材料上，通过增加限制器片的质量和/或通过减小剥离器的尺寸或尾随 边缘或其他方式。

公开(公告)号：US08085506B1

公开(公告)日：2011-12-27

申请号：US11845210

申请日：2007-08-27

申请人： Kuen Chee Ee ,  Christopher Gene Dunn ,  Keith Allan Vanderlee ,  Peter Sung Hahn

发明人： Kuen Chee Ee ,  Christopher Gene Dunn ,  Keith Allan Vanderlee ,  Peter Sung Hahn

IPC分类号： G11B5/48 ,  G11B21/16

CPC分类号： G11B5/48 ,  G11B5/4833 ,  G11B5/4853 ,  G11B5/486

摘要： A gimbal, a disk drive suspension that includes the gimbal, and a related method of manufacture, wherein the gimbal is configured to be coupled between a disk drive slider and a disk drive load beam. The gimbal includes a strut having a buss and a projection that is coupled to the buss. A combination of the projection and the buss define a gap.

摘要翻译： 一种万向节，包括万向节的磁盘驱动器悬架以及相关的制造方法，其中所述万向架被配置为联接在磁盘驱动器滑块和磁盘驱动器负载梁之间。 万向节包括具有母线的支柱和耦合到母线的突起。 投影和总线的组合定义了一个差距。