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    • 9. 发明申请
    • Write pole and method of manufacturing the same
    • 写极和制造方法相同
    • US20060044681A1
    • 2006-03-02
    • US10931649
    • 2004-08-31
    • Quang LeHoward ZollaNian-Xiang Sun
    • Quang LeHoward ZollaNian-Xiang Sun
    • G11B5/127G11B5/23
    • G11B5/1475G11B5/1278G11B5/315G11B5/3163Y10T29/49041Y10T29/49043Y10T29/49046
    • A magnetic write head and method of fabrication, in accordance with one embodiment of the present invention, includes depositing a first hard mask layer on a layer of magnetic material, depositing a second hard mask layer on the first hard mask layer, depositing a third hard mask layer on the second hard mask layer and forming a soft mask upon the third hard mask layer defining a write pole. The third hard mask layer exposed by the soft mask is etched utilizing a first chemistry, wherein the pattern of the write pole is transferred from the soft mask to the third hard mask. The second and first hard mask layers exposed by the patterned third hard mask are etched utilizing a second chemistry thereby forming a first and second hard mask. The selectivity of the second chemistry favors the first and second hard mask layers over the third hard mask. The layer of magnetic material exposed by the first hard mask is milled such that a beveled write pole is formed. The selectivity of the milling favors the magnetic material over the first hard mask
    • 根据本发明的一个实施例的磁写头和制造方法包括在第一硬掩模层上沉积第一硬掩模层,在第一硬掩模层上沉积第二硬掩模层, 掩模层,并且在限定写入极的第三硬掩模层上形成软掩模。 利用第一化学蚀刻由软掩模曝光的第三硬掩模层,其中写极的图案从软掩模转移到第三硬掩模。 通过图案化的第三硬掩模暴露的第二和第一硬掩模层利用第二化学物质进行蚀刻,从而形成第一和第二硬掩模。 第二化学品的选择性有利于第三硬掩模上的第一和第二硬掩模层。 由第一硬掩模曝光的磁性材料层被研磨成形成斜面的写入极。 铣削的选择性有利于磁性材料超过第一个硬掩模