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1. 发明授权

US07551397B2 Magnetic write head having a first magnetic pole with a self aligned stepped notch 失效
标题翻译：磁写头，具有具有自对准阶梯式切口的第一磁极
公开(公告)号：US07551397B2
公开(公告)日：2009-06-23
申请号：US11218701
申请日：2005-09-02
申请人： Bin V. Cao , Hung-Chin Guthrie , Wen-Chien Hsiao , Jyh-Shuey Lo
发明人： Bin V. Cao , Hung-Chin Guthrie , Wen-Chien Hsiao , Jyh-Shuey Lo
IPC分类号： G11B5/187
CPC分类号： G11B5/3116 , G11B5/3163
摘要： A magnetic write head and method of manufacture thereof that has a first pole structure having a step notched first pole structure. The step notched structure includes a bottom notched portion that is wider than the second notched portion formed thereover. The upper, or narrower, notched portion has a width that is substantially equal to and self aligned with a second pole structure (P2) formed thereover. The invention may also include first and second wing portions formed in the first pole that are recessed from the ABS and that extend laterally from the first notched portions of the first pole. The formation of the winged portions is assisted by an ion mill resistant bump (alumina bump) formed thereover, which acts as a mask during the ion milling operations that are used to form the first and second notches.
摘要翻译：一种磁写头及其制造方法，其具有第一极结构，具有阶切口第一极结构。台阶缺口结构包括比形成在其上的第二切口部分更宽的底部切口部分。上部或更窄的切口部分具有与形成在其上的第二极结构（P2）基本相等并自对准的宽度。本发明还可以包括形成在第一极中的从ABS凹入并从第一极的第一切口部横向延伸的第一和第二翼部。翼形部分的形成由在其上形成的离子磨耐磨凸起（氧化铝凸块）辅助，其在用于形成第一和第二凹口的离子铣削操作期间用作掩模。

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