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1.发明授权Head stack assembly with a flexible printed circuit having a mouth centered between arms 有权具有柔性印刷电路的头部堆叠组件具有以臂为中心的口公开(公告)号：US09514773B2
公开(公告)日：2016-12-06
申请号：US14954486
申请日：2015-11-30
发明人： Tzong-Shii Pan , Shufun Ho
IPC分类号： G11B5/48
CPC分类号： G11B5/486 , G11B5/4826 , G11B5/4833 , G11B5/4846 , G11B5/4853
摘要： A head stack assembly (HSA) includes a flexible printed circuit (FPC) having a mouth with an upper mouth edge and a lower mouth edge. The FPC includes a first plurality of conductive terminals immediately adjacent the upper mouth edge and a second plurality of conductive terminals immediately adjacent the lower mouth edge. The mouth is bisected by a mouth centerline that is substantially parallel to and substantially equidistant from first and second actuator arms of the HSA. A head gimbal assembly (HGA) is attached to each of the first and second actuator arms. Each HGA includes a flexure tail laminate having a dielectric layer disposed between a plurality of conductive traces and a structural layer. The plurality of conductive traces is electrically connected to either the first or second plurality of conductive terminals via a plurality of openings in the structural layer and in the dielectric layer.
摘要翻译： 头堆叠组件（HSA）包括具有嘴部的上部口部边缘和下部嘴缘的柔性印刷电路（FPC）。 FPC包括紧邻上口边缘的第一多个导电端子和紧邻下口边缘的第二多个导电端子。 嘴部被口中心线平分，该中心线基本上与HSA的第一和第二致动器臂平行且基本上等距。 头万向节组件（HGA）附接到第一和第二致动器臂中的每个。 每个HGA包括具有设置在多个导电迹线和结构层之间的介电层的挠曲尾层压板。 多个导电迹线经由结构层和电介质层中的多个开口电连接到第一或第二多个导电端子。
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2.发明授权Disk drive head suspension assembly having a DLC coating between dimple and tongue 有权磁盘驱动器头悬挂组件，其在凹坑和舌头之间具有DLC涂层公开(公告)号：US08760814B1
公开(公告)日：2014-06-24
申请号：US13776719
申请日：2013-02-26
发明人： Tzong-Shii Pan , David E. Fowler , John E. Scura , Yanning Liu
IPC分类号： G11B5/48
CPC分类号： G11B5/4826 , G11B5/4833
摘要： A suspension assembly for a head gimbal assembly of a disk drive includes a laminated flexure that includes a tongue for attachment of a read head. The suspension assembly includes a load beam that, in a first aspect of the present invention has a protruding dimple that contacts the tongue. In this aspect of the invention, a diamond-like carbon (DLC) coating is disposed between and contacting the dimple and the tongue. For example, the DLC may be disposed on the tongue at the location of contact with the load beam dimple. Alternatively, in a second aspect of the present invention, the tongue may have a protruding dimple that contacts the load beam. In this aspect of the invention, a DLC coating is disposed between and contacting the dimple and the load beam.
摘要翻译： 用于磁盘驱动器的磁头万向架组件的悬架组件包括层叠的挠曲件，其包括用于附接读取磁头的舌头。 悬挂组件包括负载梁，其在本发明的第一方面具有接触舌头的突出的凹坑。 在本发明的这个方面，金刚石状碳（DLC）涂层设置在凹坑和舌头之间并且与凹部接触。 例如，DLC可以在与负载光束凹坑接触的位置处设置在舌头上。 或者，在本发明的第二方面中，舌头可以具有接触负载梁的突出的凹坑。 在本发明的这个方面，DLC涂层设置在凹坑和负载梁之间并与之接触。
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公开(公告)号：US08693144B1
公开(公告)日：2014-04-08
申请号：US13906205
申请日：2013-05-30
发明人： Tzong-Shii Pan , Yi Lu , Yanning Liu
IPC分类号： G11B21/02
CPC分类号： G11B5/4826 , G11B5/4833
摘要： A head gimbal assembly (HGA) for a disk drive is disclosed. The HGA includes a load beam, a flexure, and a slider attached to the load beam by the flexure. The load beam comprises one or more apertures configured to pass a laser beam at each of at least three non collinear points to measure at least one slider parameter. The method for measuring at least one slider parameter includes positioning the slider over a rotating medium and projecting a laser beam through the one or more apertures in the load beam.
摘要翻译： 公开了一种用于磁盘驱动器的磁头万向架组件（HGA）。 HGA包括负载梁，挠曲件和通过挠曲件附接到负载梁的滑块。 负载梁包括一个或多个孔，其配置成在至少三个非共线点的每一个处传递激光束以测量至少一个滑块参数。 用于测量至少一个滑块参数的方法包括将滑块定位在旋转介质上并且将激光束投射穿过负载梁中的一个或多个孔。
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公开(公告)号：US20210304791A1
公开(公告)日：2021-09-30
申请号：US16835016
申请日：2020-03-30
摘要： An approach to a piezoelectric (PZT) device, such as a hard disk drive microactuator, includes one or more layers of poled PZT material, with top and bottom surfaces coupled with respective electrode layers coupled with a power source to drive the active PZT layer(s). The electrode layers have different thicknesses, where the particular thicknesses may be configured to mitigate the variation of out-of-plane motion or bending associated with operational variations in the z-height between a corresponding actuator arm and recording medium and, likewise, the phase variation of flexure vibration.
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公开(公告)号：US10283150B2
公开(公告)日：2019-05-07
申请号：US15667585
申请日：2017-08-02
发明人： John Contreras , Rehan Zakai , Albert Wallash , Tzong-Shii Pan
摘要： Disclosed herein are suspension assembly structures for data storage devices that include physical or virtual crossovers of the pairs of differential signal traces to improve immunity to crosstalk and other interference. In an embodiment, the suspension assembly structure comprises a first trace for carrying a first component of a current to a differential transducer on a slider, a second trace for carrying a second component of the current to the differential transducer on the slider, and third and fourth traces for providing a differential write current to a writer of the data storage device, wherein the first trace physically crosses over the second trace at a first distance from a tail of the suspension assembly structure.
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6.发明申请公开(公告)号：US20170154645A1
公开(公告)日：2017-06-01
申请号：US15429228
申请日：2017-02-10
发明人： Tzong-Shii Pan
IPC分类号： G11B5/48
CPC分类号： G11B5/4846 , G11B5/4826 , G11B5/4833 , G11B5/4853 , G11B5/486 , Y10T29/49057 , Y10T29/53261
摘要： A head gimbal assembly has a laminate flexure that includes a metallic conductive layer that includes a plurality of electrically conductive traces that are elongated and narrow and electrically connected to the read head, and a metallic structural layer that is stiffer than the conductive layer. A first dielectric layer is disposed between the structural layer and the conductive layer. A second dielectric layer substantially covers the conductive layer in a flexure tail bonding region that overlaps a flexible printed circuit (FPC). The structural layer includes a plurality of flexure bond pads that are aligned with, facing, and bonded to corresponding FPC bond pads. The flexure bond pads in the structural layer are electrically connected to the electrically conductive traces in the conductive layer by vias through the first dielectric layer. In certain embodiments, the flexure tail is folded upon itself in the flexure tail bonding region.
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公开(公告)号：US09025283B1
公开(公告)日：2015-05-05
申请号：US14065574
申请日：2013-10-29
CPC分类号： G11B5/4826 , G11B5/484 , G11B5/4853 , G11B5/486
摘要： A laminated structure includes a metallic layer, a dielectric layer on the metallic layer, wherein the dielectric layer and metallic layer have a slot formed therein, and one or more conductive traces on the dielectric layer opposite the metallic layer, wherein the ends of the one or more traces terminate to form bonding pads extending into the slot. A method of forming a slotted laminated structure includes forming a metallic layer, forming a dielectric layer on the metallic layer, forming a slot in the dielectric layer and metallic layer, and forming one or more electrically conductive traces on the dielectric layer opposite the metallic layer, wherein ends of the one or more traces are formed to terminate with bonding pads extending into the slot.
摘要翻译： 叠层结构包括金属层，金属层上的电介质层，其中电介质层和金属层具有形成在其中的槽，以及与金属层相对的介电层上的一个或多个导电迹线，其中一个 或更多迹线终止以形成延伸到槽中的焊盘。 形成开槽层压结构的方法包括形成金属层，在金属层上形成电介质层，在电介质层和金属层中形成槽，并在与金属层相对的电介质层上形成一个或多个导电迹线 其中，一个或多个迹线的端部被形成为以延伸到槽中的接合焊盘终止。
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8.发明授权Disk drive head suspension with a dual dimple and a flexure tongue with a piezoelectric microactuator 有权磁盘驱动头悬挂，带有双凹坑和带压电微致动器的弯曲舌头公开(公告)号：US08995094B1
公开(公告)日：2015-03-31
申请号：US14298709
申请日：2014-06-06
CPC分类号： G11B5/4826 , G11B5/483
摘要： A disk drive head gimbal assembly (HGA) includes a distal region that includes a load beam dimple having a protruding convex surface. The HGA includes a laminated flexure having a structural layer with a tongue disposed between two outrigger beams. A piezoelectric element is adhered to the tongue. The tongue includes an actuated portion to which a read head may be adhered, and that is rotated about an axis of rotation by expansion of the piezoelectric element. The tongue also includes a non-actuated portion that is not rotated by expansion of the piezoelectric element. The non-actuated portion of the tongue adjoins and forms a bridge between the two outrigger beams. The bridge includes a flexure dimple that protrudes from the tongue and has a concave surface that is in contact with the convex surface of the load beam dimple.
摘要翻译： 磁盘驱动器头万向架组件（HGA）包括远端区域，其包括具有突出的凸表面的负载光束凹坑。 HGA包括具有设置在两个支架梁之间的舌部的结构层的层压挠曲件。 压电元件粘附到舌头上。 舌部包括致动部分，读取头可以粘附到该致动部分，并且通过压电元件的膨胀围绕旋转轴线旋转。 舌头还包括不被压电元件的膨胀而旋转的非致动部分。 舌的非致动部分邻接并在两个支腿之间形成桥梁。 桥梁包括从舌部突出的弯曲凹坑，并且具有与负载梁凹坑的凸面接触的凹面。
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9.发明授权Disk drive head suspension assembly with piezo element stress relief features 有权具有压电元件应力消除功能的磁盘驱动器头悬挂组件公开(公告)号：US08797689B1
公开(公告)日：2014-08-05
申请号：US13683974
申请日：2012-11-21
发明人： Tzong-Shii Pan , Kia Moh Teo , Wing C. Shum , Yanning Liu , Mukund Vijay
IPC分类号： G11B5/56
CPC分类号： G11B5/4873 , G11B5/4833
摘要： A head suspension assembly for a disk drive includes a mounting plate that may include an annular swage boss. A load beam is attached to and extends from the mounting plate in a longitudinal direction. A first piezoelectric element is disposed within a first piezoelectric element receiving window in the mounting plate. The load beam includes a first etched region that is elongated in a transverse direction that is transverse to the longitudinal direction. The first etched region neighbors the first piezoelectric element and is disposed closer to the annular swage boss than is the first piezoelectric element.
摘要翻译： 用于盘驱动器的头悬挂组件包括可包括环形锻压凸台的安装板。 负载梁沿纵向安装到安装板并从其延伸。 第一压电元件设置在安装板中的第一压电元件接收窗内。 负载梁包括在横向于纵向方向的横向方向上延伸的第一蚀刻区域。 第一蚀刻区域邻近第一压电元件并且比第一压电元件更靠近环形模具凸台设置。
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公开(公告)号：US09972347B1
公开(公告)日：2018-05-15
申请号：US14628111
申请日：2015-02-20
发明人： Tzong-Shii Pan , Cliff Zhang , Maribel Castro
CPC分类号： G11B5/4813 , G11B5/295 , G11B5/48 , G11B5/4833 , G11B5/4846 , G11B5/4853 , G11B5/486 , G11B5/84 , Y10T29/49023 , Y10T29/49025 , Y10T29/49027 , Y10T29/4903
摘要： A method for head stack assembly (HSA) rework is disclosed. A first head gimbal assembly (HGA) includes a first suspension attached to an arm of the HSA, and a first flexure tail that terminates in a first bonding region that is bonded to a flexible printed circuit (FPC) of the HSA. The first HGA is removed by cutting the first bonding region from a remainder of the first flexure tail and detaching the first suspension from the arm. The first bonding region of the first flexure tail is left bonded to the FPC. A replacement HGA includes a replacement suspension and a replacement flexure tail that terminates in a second bonding region. The replacement HGA is installed on the HSA by attaching the replacement suspension to the arm, overlaying the second bonding region on the first bonding region, and bonding the second bonding region to the first bonding region.
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