Method for manufacturing a magnetic disk device with improved head gimbal assembly

    公开(公告)号:US20060053621A1

    公开(公告)日:2006-03-16

    申请号:US11228670

    申请日:2005-09-15

    IPC分类号: G11B5/33

    摘要: Embodiments of the invention correct the static attitude of a head gimbal assembly (HGA) with high accuracy. In one embodiment, a vector group that constitutes the shortest path from the initial attitude of the HGA to the final anticipatory attitude is formed. The vector group is formed of the plural displacement vectors that give a variety of variations in static attitude when unit shots of laser light are performed on the HGA. Displacement vectors are synthesized while the displacement vectors each giving the anticipatory attitude closest to a target attitude are being selected in order from the initial attitude, toward the target attitude. Unit shots equivalent to the number of displacement vectors are performed on irradiating positions related to the displacement vectors included in the vector group. The static attitude existing after the unit shots is measured, then the displacement vectors are corrected, and a vector group constituting the new shortest path is formed. Highly accurate attitude correction is thus realized.

    Method for manufacturing a magnetic disk device with improved head gimbal assembly
    2.
    发明授权
    Method for manufacturing a magnetic disk device with improved head gimbal assembly 失效
    具有改进的头万向节组件的磁盘装置的制造方法

    公开(公告)号:US07550695B2

    公开(公告)日:2009-06-23

    申请号:US11228670

    申请日:2005-09-15

    IPC分类号: B23K26/00 G11B5/48

    摘要: Embodiments of the invention correct the static attitude of a head gimbal assembly (HGA) with high accuracy. In one embodiment, a vector group that constitutes the shortest path from the initial attitude of the HGA to the final anticipatory attitude is formed. The vector group is formed of the plural displacement vectors that give a variety of variations in static attitude when unit shots of laser light are performed on the HGA. Displacement vectors are synthesized while the displacement vectors each giving the anticipatory attitude closest to a target attitude are being selected in order from the initial attitude, toward the target attitude. Unit shots equivalent to the number of displacement vectors are performed on irradiating positions related to the displacement vectors included in the vector group. The static attitude existing after the unit shots is measured, then the displacement vectors are corrected, and a vector group constituting the new shortest path is formed. Highly accurate attitude correction is thus realized.

    摘要翻译: 本发明的实施例以高精度校正头万向节组件(HGA)的静态姿态。 在一个实施例中,形成从HGA的初始姿态到最终预期态度构成最短路径的矢量组。 矢量组由多个位移矢量形成,当在HGA上执行激光单元拍摄时,能够给出静态姿态的各种变化。 合成位移矢量,同时从初始姿态到目标姿态依次选择各自给出最接近目标姿态的预期姿态的位移矢量。 对与矢量组中包含的位移矢量有关的照射位置进行与位移矢量数相当的单位拍摄。 测量在单元拍摄之后存在的静态姿态,然后校正位移矢量,并且形成构成新的最短路径的矢量组。 从而实现了高精度的姿态校正。