公开(公告)号：US06297936B1

公开(公告)日：2001-10-02

申请号：US09435973

申请日：1999-11-08

申请人： Rishi Kant ,  Frederick Mark Stefansky

发明人： Rishi Kant ,  Frederick Mark Stefansky

IPC分类号： G11B556

CPC分类号： G11B5/5552

摘要： A microactuator is employed in a disc drive system to finely position a transducing head adjacent to a selected track of a rotatable disc. The disc drive includes an actuator arm, a load beam attached to the actuator arm, and a flexure supporting a slider carrying the transducing head adjacent to a surface of the rotatable disc. The microactuator is formed integrally with the load beam, and is attached to the flexure so that displacement effected by the microactuator deflects a portion of the load beam to finely position the flexure and the head-carrying slider with respect to the selected track of the rotatable disc.

摘要翻译： 在光盘驱动系统中采用微致动器来精细地定位与可旋转盘的选定轨道相邻的换能头。 盘驱动器包括致动器臂，附接到致动器臂的负载梁，以及支撑承载传感头的滑块的挠曲件，其邻近可旋转盘的表面。 微型致动器与负载梁一体地形成，并且附接到挠曲件，使得由微致动器实现的位移偏转负载梁的一部分，以使挠曲件和头部承载滑块相对于所选择的可旋转的轨道 光盘。

公开(公告)号：US06215629B1

公开(公告)日：2001-04-10

申请号：US09289024

申请日：1999-04-09

申请人： Rishi Kant ,  Frederick Mark Stefansky

发明人： Rishi Kant ,  Frederick Mark Stefansky

IPC分类号： G11B556

CPC分类号： G11B5/5552

摘要： A dual-stage actuation assembly for a disc drive includes a movable actuator arm and a load beam connected to the actuator arm. A microactuator is attached to the load beam, and includes a first bending motor, a second bending motor and a slider support structure supporting a slider over the disc. The slider support structure is attached between the first and second bending motors. The first and second bending motors are responsive to control signals to translationally move the slider support structure with respect to the load beam, to finely position a transducing head carried by the slider over a selected track of the disc.

摘要翻译： 用于盘驱动器的双级致动组件包括可移动致动器臂和连接到致动器臂的负载梁。 微型致动器附接到负载梁，并且包括第一弯曲马达，第二弯曲马达和支撑盘上的滑块的滑块支撑结构。 滑块支撑结构安装在第一和第二弯曲马达之间。 第一和第二弯曲马达响应于控制信号以使滑动器支撑结构相对于负载梁平移地移动，以将由滑动器承载的换能头精细地定位在所选择的盘的轨道上。

公开(公告)号：US06320730B1

公开(公告)日：2001-11-20

申请号：US09359109

申请日：1999-07-22

申请人： Frederick Mark Stefansky ,  Rishi Kant

发明人： Frederick Mark Stefansky ,  Rishi Kant

IPC分类号： G11B556

CPC分类号： G11B5/5552

摘要： A dual-stage actuation assembly for a disc drive includes a movable actuator arm and a load beam connected to the actuator arm. A pad is attached to the load beam, and a hinge extends from the pad. A microactuator cradle is attached to the pad by the hinge, and includes a slider support structure having first and second beams that are bendable in response to control signals and a gimbal attached to the slider support structure for supporting the slider between the first and second beams over a surface of a disc. A first piezoelectric element is coupled to the first beam for bending the first beam in response to control signals in a selected direction, and a second piezoelectric element is coupled to the second beam for bending the second beam in response to the control signals in the selected direction. Bending of the first and second beams causes the microactuator cradle to rotate with respect to the pad about the hinge in a plane generally parallel to the surface of the disc, thereby effecting high resolution displacement of the transducing head carried by the slider.

摘要翻译： 用于盘驱动器的双级致动组件包括可移动致动器臂和连接到致动器臂的负载梁。 衬垫连接到负载梁上，铰链从衬垫延伸。 微型致动器支架通过铰链附接到垫，并且包括滑块支撑结构，其具有响应于控制信号而可弯曲的第一和第二梁以及附接到滑块支撑结构的万向架，用于在第一和第二梁之间支撑滑块 在盘的表面上。 第一压电元件耦合到第一光束，以响应于所选方向上的控制信号弯曲第一光束，并且第二压电元件耦合到第二光束，以响应于所选择的控制信号弯曲第二光束 方向。 第一和第二光束的弯曲使得微致动器支架在大致平行于盘表面的平面中相对于垫围绕铰链旋转，从而实现由滑块承载的换能头的高分辨率位移。

公开(公告)号：US6166890A

公开(公告)日：2000-12-26

申请号：US210914

申请日：1998-12-14

申请人： Frederick Mark Stefansky ,  Rishi Kant

发明人： Frederick Mark Stefansky ,  Rishi Kant

IPC分类号： G11B5/55 ,  G11B5/60

CPC分类号： G11B5/5552 ,  G11B5/6005

摘要： A method and apparatus for providing cross track positioning of a disk drive head relative to a formatted track on a disk platter. A load beam is attached via a living hinge to a cradle. Piezo crystals are mounted on the cradle in plane with the load beam. The crystals are attached to levers formed into a proximal end of the load beam and activated with electric signals from a microactuator control to elongate or contract. Activated simultaneously the crystals exert a push force on one lever and a pull force on the other lever causing the load beam to pivot about the living hinge acting as a fulcrum. The load beam is attached to the cradle via cradle panels located at the distal end portion of the load beam. The cradle panels are preferably perpendicular to the load beam thereby providing low resistance in the cross rack direction and support in the vertical direction.

摘要翻译： 一种用于提供磁盘驱动器头相对于盘片上的格式化轨迹的交叉轨道定位的方法和装置。 负载梁通过活动铰链连接到支架。 压电晶体与负载梁平行地安装在支架上。 晶体被附接到形成到负载梁的近端的杠杆上，并且由来自微致动器控制器的电信号激活以伸长或收缩。 同时激活晶体在一个杠杆上施加推力并在另一个杠杆上施加拉力，使得负载梁围绕作为支点的活动铰链枢转。 负载梁通过位于负载梁的远端部分的支架面板附接到支架。 支架面板优选地垂直于负载梁，从而在十字架方向上提供低电阻并且在垂直方向上支撑。

公开(公告)号：US6128164A

公开(公告)日：2000-10-03

申请号：US47591

申请日：1998-03-25

申请人： Rishi Kant ,  Frederick M. Stefansky

发明人： Rishi Kant ,  Frederick M. Stefansky

IPC分类号： G11B5/48 ,  G11B21/16

CPC分类号： G11B5/4826

摘要： A disk drive having a novel head-gimbal assembly (HGA) which is attached to an actuator arm of an actuator assembly. The HGA includes a read/write head, a flexure, and a suspension arm. The suspension arm has a first end including the flexure supporting the read/write head, and a second end including a hole having an attached swaging member extending through it. The swaging member includes a baseplate and a swaging boss which interface at an annulus region. A circular hole is formed through a top surface of the baseplate and extends downward partially through the swaging member. A non-circular hole, concentric with the circular hole, is formed through a bottom surface of the swaging boss, and extends upward partially through the swaging member. The non-circular hole has a smaller diameter than the circular hole. The shape of the non-circular hole may be any geometric shape such as a two-lobbed swaging hole, a three-lobbed swaging hole, an elliptical hole or a hexagonal hole. The swage boss of the swaging member is inserted into an opening in the actuator arm. A compatible non-circular key, which is a rod of the same configuration and size as the non-circular hole, is inserted through the hole and non-circular hole in the swaging member. The non-circular key is held at both ends by a fixture and turned so that the non-circular hole is deformed. The swage boss expands in size to form a tight interference fit with the actuator arm. The plastic deformation of the swaging member is located at an interface region between the baseplate and the swaging boss. Since the plastic deformation is confined to the interface region, any formation of kinematic deflections on the HGA due to the mounting process is eliminated.

摘要翻译： 具有新颖的头部万向节组件（HGA）的磁盘驱动器，其连接到致动器组件的致动器臂。 HGA包括读/写头，弯曲部和悬架臂。 悬架臂具有包括支撑读/写头的挠曲件的第一端，以及包括具有延伸穿过其的附接的锻造构件的孔的第二端。 该锻模构件包括基板和在环形区域处相接的模锻凸台。 圆形孔通过基板的顶表面形成并且部分地向下延伸穿过模锻构件。 与圆形孔同心的非圆形孔通过型锻凸台的底表面形成，并且部分地向上延伸穿过锻造构件。 非圆形孔的直径比圆形孔小。 非圆形孔的形状可以是任意的几何形状，例如两叶式锻压孔，三叶式加工孔，椭圆形孔或六角形孔。 锻造构件的锻压凸台插入致动器臂中的开口中。 作为与非圆形孔相同的构造和尺寸的杆的相容的非圆形键插入穿过成型构件中的孔和非圆形孔。 非圆形键通过固定件保持在两端并转动，使得非圆形孔变形。 锻件凸台尺寸增大，与致动器臂形成紧密的过盈配合。 锻造构件的塑性变形位于基板和型锻凸台之间的界面区域。 由于塑性变形被限制在界面区域，所以消除了由于安装过程而导致的HGA上的运动学偏移的任何形成。

公开(公告)号：US20120104589A1

公开(公告)日：2012-05-03

申请号：US13284431

申请日：2011-10-28

申请人： Rishi Kant ,  Roger Thomas Howe

发明人： Rishi Kant ,  Roger Thomas Howe

IPC分类号： H01L23/20 ,  H01L21/768

CPC分类号： B81C1/00333 ,  B81C2201/0116

摘要： A method for sealing through-holes in a material via material diffusion, without the deposition of a sealant material, is disclosed. The method is well suited to the fabrication and packaging of microsystems technology-based devices and systems. In some embodiments, the method comprises forming sacrificial material release through-holes through a structural layer, removing the sacrificial material via an etch that etches the sacrificial material through the release through-holes, and sealing of the release through-holes via material diffusion.

摘要翻译： 公开了一种用于通过材料扩散密封材料中的通孔的方法，而不会密封材料的沉积。 该方法非常适合基于微系统技术的设备和系统的制造和封装。 在一些实施例中，该方法包括通过结构层形成牺牲材料释放通孔，通过经由释放通孔蚀刻牺牲材料的蚀刻以及经由材料扩散密封释放通孔来去除牺牲材料。

公开(公告)号：US06751068B1

公开(公告)日：2004-06-15

申请号：US09826586

申请日：2001-04-05

申请人： Rishi Kant ,  Alexander W. Chang ,  Steven R. Speckmann

发明人： Rishi Kant ,  Alexander W. Chang ,  Steven R. Speckmann

IPC分类号： G11B555

CPC分类号： G11B5/5526 ,  G11B5/4813 ,  G11B5/4826

摘要： An actuator assembly is provided for a computer disc drive. The actuator assembly includes an actuator body that supports a shell head support arm and/or a shell coil yoke. The coil yoke supports the coil of the VCM. The actuator body pivots about a pivot axis and is attached to the cartridge bearing assembly disposed within an inner hollow of the actuator body. The head support arm is a shell having a core, a first surface and a second surface. The first surface of the head support arm is concave and the second surface of the head support arm is convex. The head support arm is connected to the actuator body at a proximal end. At a distal end of the head support arm, there is a flat portion with a swage hole for connection of the flexure assembly.

摘要翻译： 为计算机盘驱动器提供致动器组件。 致动器组件包括支撑壳头支撑臂和/或壳线圈轭的致动器主体。 线圈轭支撑VCM的线圈。 致动器主体围绕枢转轴线枢转并且附接到设置在致动器主体的内部中空部内的盒支承组件。 头部支撑臂是具有芯部，第一表面和第二表面的壳体。 头部支撑臂的第一表面是凹形的并且头部支撑臂的第二表面是凸形的。 头部支撑臂在近端连接到致动器主体。 在头部支撑臂的远端处具有平坦部分，其具有用于连接挠曲组件的挤压孔。

公开(公告)号：US06417993B1

公开(公告)日：2002-07-09

申请号：US09179530

申请日：1998-10-27

申请人： Rishi Kant ,  Steve R. Speckmann ,  Mark A. Schwandt

发明人： Rishi Kant ,  Steve R. Speckmann ,  Mark A. Schwandt

IPC分类号： G11B2116

CPC分类号： G11B5/4813

摘要： An improved system for mounting the head suspensions to the actuator mounting arms of a disc drive actuator. The mounting system of the invention includes novel features on both the head suspension mounting plates and on the actuator head mounting arms that facilitate head suspension mounting without the introduction of plastic deformation in any of the mounting elements. The mounting plate of the invention includes a boss and a hole. The boss and hole are dimensioned for interference fit with complementary elements on a second mounting plate located on the opposite side of the actuator head mounting arm, to provide the retention force of the mounting system. The bosses of the mounting plates also form an interference fit with cooperative holes in the actuator head mounting arm. Compliance features are included with the holes on the actuator head mounting arm to prevent plastic deformation of the material of the head mounting arm.

摘要翻译： 一种用于将磁头悬架安装到盘驱动致动器的致动器安装臂的改进的系统。 本发明的安装系统包括头悬挂安装板和致动器头安装臂上的新颖特征，便于头悬挂安装，而不会在任何安装元件中引入塑性变形。 本发明的安装板包括凸台和孔。 凸台和孔的尺寸适于与位于执行器头安装臂的相对侧上的第二安装板上的互补元件过盈配合，以提供安装系统的保持力。 安装板的凸台也与致动器头安装臂中的协作孔形成过盈配合。 执行器头部安装臂上的孔中包含符合性特征，以防止头部安装臂的材料发生塑性变形。

公开(公告)号：US5615050A

公开(公告)日：1997-03-25

申请号：US571704

申请日：1995-12-06

申请人： Rishi Kant

发明人： Rishi Kant

IPC分类号： G02B3/04 ,  G11B7/135 ,  G02B13/18

CPC分类号： G02B3/04 ,  G11B7/1367 ,  G11B7/1378 ,  G11B2007/13727

摘要： A toroidal lens has a first surface comprised of a convex curve rotated about a central axis and a second surface comprised of a concave curve rotated about the central axis. The toroidal lens receives a radiation beam and produces an annular or halo shaped radiation beam. This resulting annular beam is focussed by a focussing lens to a reduced focus spot size without sacrificing depth of focus.

摘要翻译： 环形透镜具有包括围绕中心轴线旋转的凸曲线的第一表面和由绕中心轴线旋转的凹曲线构成的第二表面。 环形透镜接收辐射束并产生环形或晕圈辐射束。 由此产生的环形光束由聚焦透镜聚焦到减小的焦点尺寸而不牺牲聚焦深度。

公开(公告)号：US08735286B2

公开(公告)日：2014-05-27

申请号：US13284431

申请日：2011-10-28

申请人： Rishi Kant ,  Roger Thomas Howe

发明人： Rishi Kant ,  Roger Thomas Howe

IPC分类号： H01L21/44

CPC分类号： B81C1/00333 ,  B81C2201/0116

摘要： A method for sealing through-holes in a material via material diffusion, without the deposition of a sealant material, is disclosed. The method is well suited to the fabrication and packaging of microsystems technology-based devices and systems. In some embodiments, the method comprises forming sacrificial material release through-holes through a structural layer, removing the sacrificial material via an etch that etches the sacrificial material through the release through-holes, and sealing of the release through-holes via material diffusion.

摘要翻译： 公开了一种用于通过材料扩散密封材料中的通孔的方法，而不会密封材料的沉积。 该方法非常适合基于微系统技术的设备和系统的制造和封装。 在一些实施例中，该方法包括通过结构层形成牺牲材料释放通孔，通过经由释放通孔蚀刻牺牲材料的蚀刻以及经由材料扩散密封释放通孔来去除牺牲材料。