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2. 发明申请

US20050122619A1 High gradient disc drive writer 有权
标题翻译：高梯度磁盘驱动器刻录机
公开(公告)号：US20050122619A1
公开(公告)日：2005-06-09
申请号：US10726881
申请日：2003-12-03
申请人： Frank Stageberg , Martin Plumer , Vee Kong
发明人： Frank Stageberg , Martin Plumer , Vee Kong
IPC分类号： G11B5/127 , G11B5/147
CPC分类号： G11B5/1272
摘要： A magnetic writer having an air bearing surface for confronting a surface of a rotating disc is disclosed. The magnetic writer includes a bottom pole and a top pole. The top pole includes a first top pole portion and a second top pole portion connected by a top pole extension. The top pole extension, which preferably has a uniform width at the air bearing surface, orients a magnetization of the first top pole portion substantially parallel to an air bearing surface of the magnetic writer. The bottom pole includes a base pole and a notch pole. The base pole is recessed from the air bearing surface to prevent or reduce fringe erasure fields. The notch pole, which abuts the base pole and extends from the air bearing surface to at least a magnetic throat height of the magnetic writer, has a magnetization oriented perpendicular to the air bearing surface.
摘要翻译：公开了一种具有用于面对旋转盘的表面的空气轴承表面的磁性写入器。磁性写入器包括底极和顶极。顶极包括通过顶极延伸部连接的第一顶极部分和第二顶部极部分。优选地，在空气轴承表面处具有均匀宽度的顶极延伸部使得第一顶极部分的磁化大致平行于磁性写入器的空气轴承表面。底极包括基极和切口极。基极从空气轴承表面凹陷，以防止或减少边缘擦除场。与基座极接并从空气轴承表面延伸到至少磁性写入器的磁性喉部高度的切口极具有垂直于空气轴承表面的磁化。

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