Air bearing surface features for optimized transducer spacing
    1.
    发明公开
    Air bearing surface features for optimized transducer spacing 失效
    Oberflächenmerkmaleauf luftkissengelagerterOberflächezur Optimierung des Wandlerabstands

    公开(公告)号:EP0793229A1

    公开(公告)日:1997-09-03

    申请号:EP97301390.7

    申请日:1997-03-03

    IPC分类号: G11B21/21

    CPC分类号: G11B5/6005 Y10T29/49041

    摘要: A shallow etch (150) at the trailing edge rail of a transducer slider (100) that allows the slider to fly closer to the recording medium and exhibit less sensitivity to roll. The slider includes a support structure (126) and at least one rail (124) having side edges and an air bearing surface raised above the support structure. At least one of the rails includes a magnetic element (128) disposed on the support structure. The edges of the rail adjacent to the magnetic element are etched to minimize the fly height of the magnetic element over the disk while preventing collision of the rail with the disk during roll conditions. The etched features of the rail create relieved trailing edge portions (150) where the edges of the rail adjacent to the magnetic element are lower than the air bearing surface but are higher than the support structure. The shallow etch in the air bearing surface minimizes the difference between the minimum mechanical slider/disk spacing and the magnetic head/disk spacing which in turn allows optimization of transducer spacing. The edges of the air bearing surface adjacent the magnetic element are shortened by reactive ion etching or ion milling.

    摘要翻译: 在换能器滑块(100)的后缘轨道处的浅蚀刻(150),其允许滑块靠近记录介质飞行并且具有较低的滚动灵敏度。 滑块包括支撑结构(126)和至少一个具有侧边缘的轨道(124),并且空气支承表面在支撑结构上方升高。 轨道中的至少一个包括设置在支撑结构上的磁性元件(128)。 蚀刻与磁性元件相邻的导轨的边缘以使磁性元件在盘上的飞行高度最小化,同时防止在滚动条件期间轨道与盘的碰撞。 轨道的蚀刻特征产生缓和的后缘部分(150),其中与磁性元件相邻的导轨的边缘低于空气支承表面,但是高于支撑结构。 空气轴承表面中的浅蚀刻使最小机械滑块/磁盘间隔与磁头/磁盘间隔之间的差异最小化,这又允许优化换能器间距。 靠近磁性元件的空气轴承表面的边缘通过反应离子蚀刻或离子铣削而缩短。