Nesting disk separator plates for use in hard disk drives

    公开(公告)号:US10262689B2

    公开(公告)日:2019-04-16

    申请号:US15008199

    申请日:2016-01-27

    摘要: A hard disk drive with a multiple disk stack normally utilizes disk separator plates near the disk surfaces to reduce wind induced vibrations in the disks and the read/write heads. The manufacturing methods currently used to make these separator plates, metal casting and machining, or injection molded plastic, or extruding and machining, or cold forging tends to be expensive and creates unwanted weight and bulk without the desired precision. Stamping disk separator plates from metal provides exceptional dimensional control at reduced cost, but cannot readily provide the thicknesses required. Stamping and extruding the offsets, or stamping and folding the offsets, is a manufacturing process that provides the required dimensions for the offsets, and dimensional control and reduced cost.

    BVCM hold down apparatus to prevent pivot bearing damage at TVCM installation in disk drive assembly
    7.
    发明授权
    BVCM hold down apparatus to prevent pivot bearing damage at TVCM installation in disk drive assembly 有权
    BVCM压紧装置以防止TVCM安装在磁盘驱动器组件中的枢轴轴承损坏

    公开(公告)号:US09269402B1

    公开(公告)日:2016-02-23

    申请号:US13298979

    申请日:2011-11-17

    申请人: Jit Han Tan

    发明人: Jit Han Tan

    摘要: A device for preventing damage to a pivot bearing assembly during manufacture of a hard disk drive includes a first bottom voice coil motor (VCM) plate hold-down clamp configured to clamp down on a first exposed surface of a bottom VCM plate of the hard disk drive and a second bottom VCM plate hold-down clamp configured to clamp down on a second exposed surface of the bottom VCM plate. The first and second bottom VCM plate hold-down clamps are configured to prevent damage to the pivot bearing assembly during installation of the top VCM plate over the bottom VCM plate by clamping down on the bottom VCM plate with a force that is at least sufficient to prevent the bottom VCM plate from moving when the top VCM plate is installed over the bottom VCM plate.

    摘要翻译: 一种用于在制造硬盘驱动器期间防止对枢转轴承组件的损坏的装置包括:第一底部音圈电动机(VCM)板压紧夹具,其构造成夹紧在硬盘的底部VCM板的第一暴露表面上 驱动器和配置成夹紧在底部VCM板的第二暴露表面上的第二底部VCM板压紧夹具。 第一和第二底部VCM板压紧夹具被构造成防止在顶部VCM板安装在底部VCM板上时损坏枢转轴承组件,通过以至少足够的力夹紧底部VCM板 当顶部VCM板安装在底部VCM板上时,防止底部VCM板移动。

    Magnetic head having a spin torque oscillator (STO) with a hybrid heusler field generation layer (FGL)
    8.
    发明授权
    Magnetic head having a spin torque oscillator (STO) with a hybrid heusler field generation layer (FGL) 有权
    具有具有混合heusler场产生层(FGL)的自旋扭矩振荡器(STO)的磁头,

    公开(公告)号:US09230597B2

    公开(公告)日:2016-01-05

    申请号:US14070401

    申请日:2013-11-01

    摘要: In one embodiment, a magnetic head includes a main pole configured to write data to a magnetic medium, a trailing shield positioned on a trailing side of the main pole, and a STO between the main pole and the trailing shield, wherein the STO includes a laminated structure having a FGL, a spun polarization layer (SPL), and a non-magnetic spacer positioned between the FGL and the SPL, wherein the FGL includes a laminated structure having one or more layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer. In another embodiment, a method is presented for forming such a magnetic head utilizing a FGL that includes a laminated structure baying layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer.

    摘要翻译: 在一个实施例中,磁头包括被配置为将数据写入磁介质的主极,位于主极的后侧的后屏蔽和主极与后屏蔽之间的STO,其中STO包括 具有FGL的层压结构,旋转偏振层(SPL)和位于FGL和SPL之间的非磁性间隔件,其中FGL包括具有一层或多层CoFe合金和Heusler合金交替层压的层压结构 按照从最接近非磁性间隔物的FGL的一端的顺序。 在另一个实施例中,提出了一种使用FGL形成这种磁头的方法,所述FGL包括从最接近非磁性间隔物的FGL的端部依次层叠的CoFe合金和Heusler合金的叠层结构的层叠结构 。

    Systems and methods for atomic film data storage
    9.
    发明授权
    Systems and methods for atomic film data storage 有权
    用于原子胶片数据存储的系统和方法

    公开(公告)号:US09177600B2

    公开(公告)日:2015-11-03

    申请号:US14013836

    申请日:2013-08-29

    申请人: Elwha, LLC

    摘要: The present disclosure provides systems and methods associated with data storage using atomic films, such as graphene, boron nitride, or silicene. A platter assembly may include at least one platter that has one or more substantially planar surfaces. One or more layers of a monolayer atomic film, such as graphene, may be positioned on a planar surface. Data may be stored on the atomic film using one or more vacancies, dopants, defects, and/or functionalized groups (presence or lack thereof) to represent one of a plurality of states in a multi-state data representation model, such as a binary, a ternary, or another base N data storage model. A read module may detect the vacancies, dopants, and/or functionalized groups (or a topographical feature resulting therefrom) to read the data stored on the atomic film.

    摘要翻译: 本公开提供了与使用诸如石墨烯,氮化硼或硅的原子膜的数据存储相关联的系统和方法。 盘片组件可以包括至少一个具有一个或多个基本平坦表面的盘片。 可以将一层或多层单层原子膜(例如石墨烯)定位在平坦表面上。 数据可以使用一个或多个空位,掺杂剂,缺陷和/或功能化组(存在或不存在)来存储在原子膜上,以表示多状态数据表示模型中的多个状态之一,例如二进制 ,三元或另一个基本N数据存储模型。 读取模块可以检测存储在原子膜上的数据的空位,掺杂物和/或功能化组(或由其产生的形貌特征)。

    MAGNETIC HEAD HAVING A SPIN TORQUE OSCILLATOR (STO) WITH A HYBRID HEUSLER FIELD GENERATION LAYER (FGL)
    10.
    发明申请
    MAGNETIC HEAD HAVING A SPIN TORQUE OSCILLATOR (STO) WITH A HYBRID HEUSLER FIELD GENERATION LAYER (FGL) 有权
    具有混合高频场发生层(FGL)的旋转扭矩振荡器(STO)的磁头

    公开(公告)号:US20150124347A1

    公开(公告)日:2015-05-07

    申请号:US14070401

    申请日:2013-11-01

    IPC分类号: G11B5/35 G11B23/00

    摘要: In one embodiment, a magnetic head includes a main pole configured to write data to a magnetic medium, a trailing shield positioned on a trailing side of the main pole, and a STO between the main pole and the trailing shield, wherein the STO includes a laminated structure having a FGL, a spun polarization layer (SPL), and a non-magnetic spacer positioned between the FGL and the SPL, wherein the FGL includes a laminated structure having one or more layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer. In another embodiment, a method is presented for forming such a magnetic head utilizing a FGL that includes a laminated structure baying layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer.

    摘要翻译: 在一个实施例中,磁头包括被配置为向磁介质写入数据的主极,位于主极的后侧的后屏蔽和主极与后屏蔽之间的STO,其中STO包括 具有FGL的层压结构,旋转偏振层(SPL)和位于FGL和SPL之间的非磁性间隔件,其中FGL包括具有一层或多层CoFe合金和Heusler合金交替层压的层压结构 按照从最接近非磁性间隔物的FGL的一端的顺序。 在另一个实施例中,提出了一种使用FGL形成这种磁头的方法,所述FGL包括从最接近非磁性间隔物的FGL的端部依次交替层叠的CoFe合金和Heusler合金的叠层结构的层叠结构 。