公开(公告)号：US06804085B1

公开(公告)日：2004-10-12

申请号：US08408036

申请日：1995-03-21

申请人： Michael H. Azarian ,  Michael A. Baldwinson ,  Keith R. Berding ,  Kaynam Chun ,  Garrett A. Garrettson ,  Christopher S. Gudeman ,  Harold J. Hamilton ,  Anthony A. Jarrami ,  Shinichi M. Tanaka

发明人： Michael H. Azarian ,  Michael A. Baldwinson ,  Keith R. Berding ,  Kaynam Chun ,  Garrett A. Garrettson ,  Christopher S. Gudeman ,  Harold J. Hamilton ,  Anthony A. Jarrami ,  Shinichi M. Tanaka

IPC分类号： G11B582

CPC分类号： G11B5/7325 ,  G11B5/3106 ,  G11B5/8404 ,  Y10T428/24355

摘要： An electromagnetic read/write system includes a contact interface formed by a pole-structure-carrying wear pad and a recording surface. The uppermost portion of the recording surface is characterized by a buffed, generally planarized topography. Lower elevations of the recording surface may be texturized or untexturized. Various methods of producing such an interface are described. The interface of the present invention provides dramatically improved longevity, i.e, wear performance through long term read/write operation.

摘要翻译： 一种电磁读/写系统包括由极结构承载耐磨垫和记录表面形成的接触界面。 记录表面的最上部分的特征在于抛光的，通常为平面的形貌。 记录表面的较低高度可以是纹理化的或未被变形的。 描述了生产这种界面的各种方法。 本发明的界面提供了显着改善的寿命，即通过长期读/写操作的磨损性能。

公开(公告)号：US5949612A

公开(公告)日：1999-09-07

申请号：US515140

申请日：1995-08-15

申请人： Christopher S. Gudeman ,  Michael H. Azarian ,  Michael A. Baldwinson ,  Keith R. Berding ,  Kaynam Chun ,  Garrett A. Garrettson ,  Harold J. Hamilton ,  Robert D. Hempstead ,  Dimitre A. Latev ,  Mark A. Lauer

发明人： Christopher S. Gudeman ,  Michael H. Azarian ,  Michael A. Baldwinson ,  Keith R. Berding ,  Kaynam Chun ,  Garrett A. Garrettson ,  Harold J. Hamilton ,  Robert D. Hempstead ,  Dimitre A. Latev ,  Mark A. Lauer

IPC分类号： G11B5/31 ,  G11B5/73 ,  G11B5/84 ,  B05D5/12

CPC分类号： G11B5/72 ,  G11B5/3106 ,  G11B5/7325 ,  G11B5/8404 ,  Y10S428/90

摘要： A operationally contacting hard disk drive system has reduced friction due to lower capillary adhesion between the disk surface and a transducer in a substantially continuous sliding relationship with the surface. The disk surface has an adhesion-reducing texture that includes a microscopic RMS roughness in a range between about 1.5 and 5.5 nanometers, or a number of asperities having a mean plane to peak height in a range between about 6 and 50 nanometers. The roughness may increase in a radially graded fashion to compensate for the increased linear velocity and concomitant frictional power loss near the outer diameter of the disk. It is important that the uppermost reaches of the textured surface are smooth but not flat in order to obtain lasting low friction operation, which is accomplished by constructing the surface with a highest approximately one percent having an average radius of curvature in a range between 2 microns and 100 microns. An area of the slider in apparent contact with the disk surface is preferably less than 1000 square microns, and a ratio between this nominal area and the mean to peak height is less than 0.3 meters. The slider may also include a substantial thickness of partially wetting material in contact with the disk, or may alternatively be textured with deep grooves or materials having differing wear rates, in order to provide reduced frictional adhesion despite wear of the slider.

摘要翻译： 操作上接触的硬盘驱动系统由于在与表面基本上连续的滑动关系中的盘表面和换能器之间较低的毛细管粘附力而减少了摩擦。 盘表面具有减粘纹理，其包括在约1.5和5.5纳米之间的范围内的微观RMS粗糙度，或者具有在约6和50纳米之间的范围内的平均平面至峰高的数量的凹凸。 粗糙度可以以径向渐变的方式增加，以补偿在盘的外径附近的增加的线速度和伴随的摩擦功率损耗。 重要的是纹理表面的最上层是光滑的而不是平坦的，以便获得持久的低摩擦操作，这是通过将平均曲率半径在2微米之间的范围内构造最高约百分之一的表面来实现的 和100微米。 与盘表面明显接触的滑块的面积优选地小于1000平方微米，并且该标称面积与平均高峰之间的比例小于0.3米。 滑块还可以包括与盘相接触的部分润湿材料的相当厚度，或者可替代地使用具有不同磨损率的深沟槽或材料进行纹理化，以便尽管滑块的磨损来提供降低的摩擦粘附。

公开(公告)号：US06493191B1

公开(公告)日：2002-12-10

申请号：US08528890

申请日：1995-09-15

申请人： William C. Cain ,  Richard D. Anderson ,  Michael A. Baldwinson ,  Keith R. Berding ,  Michael E. Devillier ,  Garrett A. Garrettson ,  Randolph S. Gluck ,  Harold J. Hamilton ,  Robert D. Hempstead ,  Darren T. Imai ,  Kwang K. Kim ,  Dimitre A. Latev ,  Alexander P. Payne ,  David D. Roberts

发明人： William C. Cain ,  Richard D. Anderson ,  Michael A. Baldwinson ,  Keith R. Berding ,  Michael E. Devillier ,  Garrett A. Garrettson ,  Randolph S. Gluck ,  Harold J. Hamilton ,  Robert D. Hempstead ,  Darren T. Imai ,  Kwang K. Kim ,  Dimitre A. Latev ,  Alexander P. Payne ,  David D. Roberts

IPC分类号： G11B5187

CPC分类号： G11B5/3163 ,  G11B5/3106 ,  G11B5/3183

摘要： A transducer for a hard disk drive system has a planar magnetic core and a pair of poletips that project transversely from the core for sliding contact with the disk during reading and writing. The transducer is formed entirely of thin films in the shape of a low profile table having three legs that slide on the disk, the poletips being exposed at a bottom of one of the legs for high resolution communication with the disk, the throat height of the poletips affording sufficient tolerance to allow for wear. The legs elevate the transducer from the disk sufficiently to minimize lifting by a thin air layer that moves with the spinning disk which, in combination with the small size of the thin film head allows a low load and a flexible beam and gimbal to hold the transducer to the disk. The transducer includes a loop shaped core of magnetic material that ends at the poletips, the core extending further parallel than perpendicular to the disk surface and preferably being formed of a plurality of slightly spaced ribbons of magnetic material in order to increase high frequency permeance. A high magnetic saturation layer may be formed adjoining the gap in at least the trailing poletip, in order to avoid saturation at the poletips during writing. The dimensions of the yoke adjacent to the poletips are also designed to avoid saturation at the poletips by saturating at a lower flux in the yoke than the poletips. The close relationship between the transducer and the media of the disk affords high density magnetic data storage and retrieval.

摘要翻译： 用于硬盘驱动系统的换能器具有平面磁芯和一对从芯体横向突出的小纸片，用于在读写期间与盘滑动接触。 传感器完全由薄板形成，其具有在盘上滑动的三条腿的小型表，其中一条腿露出在一条腿的底部，用于与盘的高分辨率通信，喉部的高度 小腿提供足够的耐受性以允许磨损。 这些腿将传感器从盘上提升到足以最小化由旋转盘移动的薄空气层的提升，其与小尺寸的薄膜头允许低负载并且柔性梁和万向节保持换能器 到磁盘。 换能器包括磁性材料的环形磁芯，其在端部终止，芯体比垂直于磁盘表面进一步平行延伸，并且优选地由多个稍微间隔的磁性材料带形成，以便增加高频磁导率。 至少可以在至少尾部poletip中形成邻接间隙的高磁饱和层，以避免写入期间在poletips处的饱和。 靠近小翼片的轭的尺寸也被设计成通过在轭中的低通量饱和而不是poletips饱和。 传感器与磁盘介质之间的紧密关系提供了高密度的磁数据存储和检索。

公开(公告)号：US06600631B1

公开(公告)日：2003-07-29

申请号：US08338394

申请日：1994-11-14

申请人： Keith R. Berding ,  Michael A. Baldwinson ,  Harold J. Hamilton ,  Timothy W. Martin

发明人： Keith R. Berding ,  Michael A. Baldwinson ,  Harold J. Hamilton ,  Timothy W. Martin

IPC分类号： G11B548

CPC分类号： G11B5/105 ,  G11B5/4886 ,  G11B21/22

摘要： Flexure/transducer structure employable in an electromagnetic information storage and retrieval system wherein mechanical load-bearing responsibilities and electrical-current-carrying responsibilities are merged into and shared by common structure. The invention subject matter is useable in systems characterized by contact operation, as well as by quasi-contact and noncontact operations, in relation to the recording surface in an information recording medium.

摘要翻译： 可用于电磁信息存储和检索系统中的挠曲/换能器结构，其中机械承载责任和电流承载责任被合并到共同结构中并由其共享。 本发明的主题可用于以信息记录介质中的记录表面为特征的接触操作以及准接触和非接触操作的系统。

公开(公告)号：US06975476B1

公开(公告)日：2005-12-13

申请号：US10376832

申请日：2003-02-28

申请人： Keith R. Berding

发明人： Keith R. Berding

IPC分类号： G11B5/55 ,  G11B15/18 ,  G11B25/04 ,  G11B31/00 ,  G11B33/08

CPC分类号： G11B5/5582 ,  G11B25/043 ,  G11B31/006 ,  G11B33/08

摘要： Disclosed herein are disk drives and mobile host devices that include a resetable shock sensor. A mobile host device may include a memory device configured to receive a shock event signal and a shock sensor. The shock sensor may be coupled to the memory device and is configured to generate the shock event signal. The shock sensor includes a fixed portion, and a movable portion responsive to shock events. The movable portion is configured to remain out of contact with the fixed portion until the mobile host device is subjected to a shock event greater than a predetermined magnitude and to contact and remain in contact with the fixed portion and to generate the shock event signal after the mobile host device is subjected to a shock event greater than the predetermined magnitude.

摘要翻译： 这里公开了包括可复位的冲击传感器的磁盘驱动器和移动主机设备。 移动主机设备可以包括被配置为接收冲击事件信号和冲击传感器的存储器设备。 冲击传感器可以耦合到存储器件并且被配置为产生冲击事件信号。 冲击传感器包括固定部分和响应于冲击事件的可动部分。 可移动部分被配置为保持与固定部分不接触，直到移动主机装置受到大于预定大小的冲击事件并且与固定部分接触并保持接触并且在该固定部分之后产生冲击事件信号 移动主机设备遭受大于预定大小的冲击事件。

公开(公告)号：US6046889A

公开(公告)日：2000-04-04

申请号：US160366

申请日：1998-09-24

申请人： Keith R. Berding ,  Jon Garbarino

发明人： Keith R. Berding ,  Jon Garbarino

IPC分类号： G11B5/48 ,  G11B5/55

CPC分类号： G11B5/4813

摘要： A disk drive includes a base, a spindle motor coupled to the base, a disk mounted on the spindle motor, a pivot assembly coupled to the base, and a head stack assembly. The head stack assembly includes an actuator body defining a bore for surrounding the pivot assembly, a supporting surface, and an actuator arm cantilevered from the actuator body and defining a longitudinal axis. The bore defines a pivot axis of the head stack assembly. The pivot assembly includes a stationary member coupled to the base, the stationary member having a length, and a rotatable member positioned on the supporting surface such that the rotatable member is between the stationary member and the supporting surface. The stationary member and the rotatable member define a projecting member and a recessed portion, the projecting member and the recessed portion interacting to allow the head stack assembly to pivot about the pivot axis. The projecting member defines a knife edge extending parallel to the length and facing in a direction substantially perpendicular to the longitudinal axis.

摘要翻译： 磁盘驱动器包括基座，联接到基座的主轴马达，安装在主轴马达上的盘，联接到基座的枢转组件和头部堆叠组件。 头部堆叠组件包括限定用于围绕枢转组件的孔的致动器主体，支撑表面和从致动器主体悬臂并限定纵向轴线的致动器臂。 孔限定了顶部堆叠组件的枢转轴线。 枢轴组件包括联接到基座的固定构件，固定构件具有长度，以及可旋转构件，其定位在支撑表面上，使得可旋转构件位于固定构件和支撑表面之间。 固定构件和可旋转构件限定突出构件和凹入部分，突出构件和凹部相互作用以允许头部堆叠组件围绕枢转轴线枢转。 突出构件限定平行于该长度延伸并面向基本上垂直于纵向轴线的方向的刀刃。

公开(公告)号：US08514514B1

公开(公告)日：2013-08-20

申请号：US12969339

申请日：2010-12-15

申请人： Keith R. Berding ,  Thomas J. Hitchner ,  Brian P. Schott

发明人： Keith R. Berding ,  Thomas J. Hitchner ,  Brian P. Schott

IPC分类号： G11B33/14

CPC分类号： G11B25/043 ,  G11B33/025

摘要： A disk drive includes an inner frame that has a disk drive base and a disk drive cover. A disk, mounted on a rotary spindle attached to the disk drive base, defines a disk outer periphery that protrudes into a first side opening of the inner frame. A head actuator is attached to the disk drive base and to the disk drive cover. An outer enclosure includes an extruded hollow cylinder with a cross-sectional shape that is a continuous and unbroken ring that is substantially rectangular, and that surrounds a cavity. The outer enclosure surrounds the disk drive base and the disk drive cover. During assembly, the inner frame may be slid lengthwise into an open end of the outer enclosure, and the outer enclosure may be hermetically sealed to enclose air or helium in the cavity.

摘要翻译： 磁盘驱动器包括具有磁盘驱动器基座和磁盘驱动器盖的内部框架。 安装在附接到盘驱动器底座的旋转主轴上的盘限定了突出到内框的第一侧开口中的盘外周。 头致动器附接到盘驱动器底座和磁盘驱动器盖。 外壳包括具有横截面形状的挤压中空圆柱体，该圆柱形截面形状是基本上矩形的并且围绕腔体的连续且不间断的环。 外壳围绕磁盘驱动器底座和磁盘驱动器盖。 在组装期间，内框架可以纵向滑动到外壳的开口端，并且外壳可以气密地密封以将空气或氦包围在空腔中。

公开(公告)号：US07385784B1

公开(公告)日：2008-06-10

申请号：US10976502

申请日：2004-10-29

申请人： Keith R. Berding ,  Gabriel F. Camara ,  Pang Choun Cheong

发明人： Keith R. Berding ,  Gabriel F. Camara ,  Pang Choun Cheong

IPC分类号： G11B33/14

CPC分类号： G11B5/102 ,  G11B33/1493

摘要： There is provided a disk drive cover. The disk drive cover includes a bottom layer including a metallic bottom layer body and a first flap formed in the bottom layer body. The first flap defines an exposed inner body edge of the bottom layer body. The disk drive cover further includes a damping layer. The disk drive cover further includes a top layer including a metallic top layer body and a second flap. The second flap is formed in the top layer body with the second flap extending into the bottom layer adjacent the first flap. The second flap defines an exposed second flap edge. The second flap edge is disposed in mechanical communication with the exposed inner body edge for electrically grounding the top and bottom layers.

摘要翻译： 提供了一个磁盘驱动器盖。 磁盘驱动器盖包括底层，该底层包括形成在底层体中的金属底层体和第一瓣。 第一皮瓣限定底层体的暴露的内体边缘。 磁盘驱动器盖还包括阻尼层。 磁盘驱动器盖还包括顶层，其包括金属顶层体和第二瓣。 第二片形成在顶层体中，第二片延伸到靠近第一片的底层。 第二挡板限定暴露的第二翼片边缘。 第二翼缘设置成与暴露的内体边缘机械连通，用于使顶层和底层电接地。

公开(公告)号：US5936803A

公开(公告)日：1999-08-10

申请号：US870617

申请日：1997-06-06

申请人： Keith R. Berding

发明人： Keith R. Berding

IPC分类号： G11B5/56 ,  G11B5/58

CPC分类号： G11B5/58 ,  G11B5/56

摘要： The invention resides in a magnetic disk drive having a load beam assembly that forms a part of a head gimbal assembly and head stack assembly in a magnetic disk drive.The load beam assembly is uniquely mass balanced to prevent head slap by preventing an acceleration in the Z-direction from causing the transducer head to separate from the disk. The load beam assembly is preferably mass balanced by providing a load beam balancing member that is rigidly connected to the elongated load beam about a transverse axis of the hinge member. The balancing member can form the balancing mass or the balancing member can carry a discrete balancing mass. The balancing member may be divided into two halves that move on either side of the base portion, but is preferably comprised of a narrow, centrally located member that moves within an aperture formed in the base portion. The mass balanced load beam assembly can beneficially be manufactured from the same stainless steel sheets used to form conventional load beam assemblies. The balancing member may also be flexibly connected to the load beam by a spring hinge having a spring constant which, in concert with the mass of the balancing member, makes the balancing member oscillate in opposition to the disk to actively bias the head against the disk following a shock event.

摘要翻译： 本发明涉及一种磁盘驱动器，其具有负载梁组件，其在磁盘驱动器中形成磁头万向架组件和磁头组组件的一部分。 负载梁组件通过防止Z方向上的加速使得换能器头与盘分离而独特的质量平衡以防止头部拍打。 负载梁组件优选地通过提供一个负载梁平衡构件进行质量平衡，该负载梁平衡构件围绕铰链构件的横向轴线刚性地连接到细长负载梁。 平衡构件可以形成平衡块，或者平衡构件可承载离散平衡块。 平衡构件可以被分成在基部的任一侧上移动的两个半部，但是优选地包括在形成在基部中的孔内移动的窄的中心定位的构件。 质量平衡载荷梁组件可有利地由用于形成常规载荷梁组件的相同不锈钢板制造。 平衡构件还可以通过具有弹簧常数的弹簧铰链灵活地连接到负载梁，弹簧常数与平衡构件的质量一致使得平衡构件与盘相对振动以主动地将头部抵靠盘 紧随事件发生。

公开(公告)号：US5781380A

公开(公告)日：1998-07-14

申请号：US831986

申请日：1997-04-01

申请人： Keith R. Berding ,  Shawn E. Casey ,  Charles B. Mountain

发明人： Keith R. Berding ,  Shawn E. Casey ,  Charles B. Mountain

IPC分类号： G11B5/48 ,  G11B5/50

CPC分类号： G11B5/4846 ,  G11B5/4853 ,  G11B5/486 ,  G11B5/50

摘要： The invention relates to a magnetic disk drive having a head stack assembly including a rotary actuator body having a flex circuit mounting site for mounting a main actuator flex circuit and an arm extending therefrom which supports a head gimbal assembly (HGA). The invention provides for molding the conductors into the arm and the actuator body so that the conductors are strategically exposed along the flex circuit mounting side of the actuator body and along an end of the arm body which mates with the HGA.

摘要翻译： 本发明涉及具有磁头堆叠组件的磁盘驱动器，磁头堆叠组件包括具有用于安装主致动器柔性电路的柔性电路安装位置的旋转致动器主体和从其延伸的支撑头部万向架组件（HGA）的臂。 本发明提供了将导体模制到臂和致动器主体中，使得导体沿着致动器本体的柔性电路安装侧并且沿着与HGA配合的臂主体的端部被战略性地暴露。