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14 条记录 (耗时 0.009 秒)

    Lapping control system for magnetic transducers
    2.
    发明公开
    Lapping control system for magnetic transducers 失效
    Steueranordnung zumLäppenvon magnetischen Wandlern。

    公开(公告)号：EP0383738A1

    公开(公告)日：1990-08-22

    申请号：EP90850056.4

    申请日：1990-02-07

    申请人： International Business Machines Corporation

    发明人： Chang, Mike Yu-Chieh ,  Church, Mark Anthony ,  Salo, Michael Paul

    IPC分类号： G11B5/127 ,  G11B5/33 ,  G11B5/31

    CPC分类号： B24B37/013 ,  B24B37/048 ,  G11B5/3116 ,  G11B5/3166 ,  G11B5/455

    摘要： A lapping control system for a row of thin film magnetic transducers (12) formed on a substrate (10). Each of the rows comprise a plurality of thin film magnetic transducers and at least two test structures (14, 16). Each test structure has at least two elements which comprises some combination of switch elements (34) or test thin film magnetic transducers (50). As the row of transducers is lapped, each time one of the switch elements is opened, the saturation current (ISAT) of one or more of the thin film magnetic transducers is measured and recorded so that a correlation between ISAT and throat height of the transducers is established during lapp­ing. This correlation is used to establish the point at which lapping should be terminated.

    摘要翻译： 一种用于在衬底（10）上形成的一排薄膜磁换能器（12）的研磨控制系统。 每行包括多个薄膜磁换能器和至少两个测试结构（14,16）。 每个测试结构具有至少两个元件，其包括开关元件（34）或测试薄膜磁换能器（50）的某些组合。 随着传感器行的重叠，每当开关元件中的一个被打开时，测量和记录一个或多个薄膜磁换能器的饱和电流（ISAT），使得ISAT与换能器的喉部高度之间的相关性 在研习过程中建立。 该相关性用于确定研究结束的点。

    Automated system for lapping magnetic heads
    5.
    发明公开
    Automated system for lapping magnetic heads 失效
    自动化磁头系统

    公开(公告)号：EP0504887A3

    公开(公告)日：1992-10-21

    申请号：EP92104796.5

    申请日：1992-03-19

    申请人： READ-RITE CORPORATION

    发明人： Cole, Robert A.

    IPC分类号： G11B5/31 ,  G11B5/187 ,  G11B5/60 ,  B24B37/04 ,  B23Q15/12

    CPC分类号： B24B37/013 ,  B24B37/048 ,  G05B19/4166 ,  G05B2219/34047 ,  G05B2219/34279 ,  G05B2219/41309 ,  G05B2219/45199 ,  G05B2219/49362 ,  G05B2219/50348 ,  G11B5/1871 ,  G11B5/3103 ,  G11B5/3163 ,  G11B5/60

    摘要： An automated system for lapping thin film magnetic heads comprises a lapping fixture (52) positioned in apposition to a rotary lapping plate (54). A ceramic bar (12), on which the magnetic heads (20) are deposited and from which air bearing head sliders are fabricated, is attached to an adjustable transfer tool (10) that is secured to a bow yoke holder (24). The holder (24) is fixed securely on the lapping fixture (52) so that the air bearing surface of the magnetic heads face the surface of the lapping plate (54). During the lapping process, digital data signals are obtained representative of throat height levels of selected heads (20) spaced along the bar (12). The signals are calibrated and processed by a computer (78) which provides command signals for varying lapping pressure, changing direction of row bow, shifting a weight to achieve proportional lapping along the bar, changing the lapping process to a fine polishing step and forming tapers on the rails of the head sliders.

    Magnetic head and method for manufacturing the same
    6.
    发明公开
    Magnetic head and method for manufacturing the same 失效
    磁头和方法及其生产。

    公开(公告)号：EP0193044A1

    公开(公告)日：1986-09-03

    申请号：EP86101864.6

    申请日：1986-02-14

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Hasegawa, Tadashi

    IPC分类号： G11B5/265

    CPC分类号： B24B37/048 ,  G11B5/2651 ,  G11B5/2655 ,  Y10T29/4905 ,  Y10T29/49055 ,  Y10T29/49799

    摘要： A magnetic head comprises first and second magnetic cores (141, 142) each having a magnetic gap are joined together with first and second non-magnetic structures (109A, 109B).The magnetic cores are laminated such that the first magnetic core (141) is in contact with the second non-magnetic structure (109B) and the second magnetic core (142) is in contact with the first non-magnetic structure (109A). The magnetic core members and the non-magnetic core members are combined in the form of a letter "W" in its cross-section having mutually parallel and upright leg portions.

    Automated system for lapping magnetic heads
    9.
    发明公开
    Automated system for lapping magnetic heads 失效
    Automatisiertes System zumLäppenvonMagnetköpfen。

    公开(公告)号：EP0504887A2

    公开(公告)日：1992-09-23

    申请号：EP92104796.5

    申请日：1992-03-19

    申请人： READ-RITE CORPORATION

    发明人： Cole, Robert A.

    IPC分类号： G11B5/31 ,  G11B5/187 ,  G11B5/60 ,  B24B37/04 ,  B23Q15/12

    CPC分类号： B24B37/013 ,  B24B37/048 ,  G05B19/4166 ,  G05B2219/34047 ,  G05B2219/34279 ,  G05B2219/41309 ,  G05B2219/45199 ,  G05B2219/49362 ,  G05B2219/50348 ,  G11B5/1871 ,  G11B5/3103 ,  G11B5/3163 ,  G11B5/60

    摘要： An automated system for lapping thin film magnetic heads comprises a lapping fixture (52) positioned in apposition to a rotary lapping plate (54). A ceramic bar (12), on which the magnetic heads (20) are deposited and from which air bearing head sliders are fabricated, is attached to an adjustable transfer tool (10) that is secured to a bow yoke holder (24). The holder (24) is fixed securely on the lapping fixture (52) so that the air bearing surface of the magnetic heads face the surface of the lapping plate (54). During the lapping process, digital data signals are obtained representative of throat height levels of selected heads (20) spaced along the bar (12). The signals are calibrated and processed by a computer (78) which provides command signals for varying lapping pressure, changing direction of row bow, shifting a weight to achieve proportional lapping along the bar, changing the lapping process to a fine polishing step and forming tapers on the rails of the head sliders.

    摘要翻译： 用于研磨薄膜磁头的自动化系统包括与旋转研磨板（54）相对定位的研磨固定件（52）。 在其上沉积有磁头（20）并由空气轴承头滑块制造的陶瓷棒（12）附接到固定到弓形轭架（24）的可调节转移工具（10）。 保持器（24）被牢固地固定在研磨固定件（52）上，使得磁头的空气支承表面面对研磨板（54）的表面。 在研磨过程中，获得数字数据信号，代表沿着条（12）间隔开的所选择的头（20）的喉部高度水平。 信号由计算机（78）进行校准和处理，计算机（78）提供用于改变研磨压力的命令信号，改变行弓的方向，移动重量以实现沿着条的比例研磨，将研磨过程改变为精细抛光步骤并形成锥形 在头滑块的轨道上。

    Float lapping fixture
    10.
    发明公开
    Float lapping fixture 失效
    浮动研磨夹具

    公开(公告)号：EP0081394A1

    公开(公告)日：1983-06-15

    申请号：EP82401556.4

    申请日：1982-08-19

    申请人： BURROUGHS CORPORATION (a Michigan corporation)

    发明人： Schindler, Abbot Michael ,  Fuchs, Otto

    IPC分类号： B24B37/04

    CPC分类号： B24B37/102 ,  B24B37/048 ,  B24B37/27

    摘要： Described is a technique and associated fixture for lapping magnetic recording heads in a group such that each head is mounted on a "free floating" part in the fixture (F,F1), being biased for lapping only by the weight of this part and being individually removable during lapping mode; and also characterized by capability for pivoting the fixture to change the lap-angle of all such heads in common to a new constant prescribed angle, the parts also being selectibly kept non- rotatable in the fixture.

    摘要翻译： 描述了一种技术和相关的夹具，用于将磁头记录在一组中，使得每个磁头安装在夹具中的“自由浮动”部件上（F，F1），偏置仅通过该部件的重量进行研磨， 在研磨模式下可单独拆卸; 并且还具有枢转夹具以将所有这些头部的搭接角度共同改变为新的恒定规定角度的能力，这些部件还可选择地保持在夹具中不可旋转。