公开(公告)号：US20050219744A1

公开(公告)日：2005-10-06

申请号：US10813836

申请日：2004-03-31

申请人： Michael Feldbaum ,  Quang Le

发明人： Michael Feldbaum ,  Quang Le

IPC分类号： G11B5/127 ,  G11B5/147

CPC分类号： G11B5/1278 ,  G11B5/1475 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A method for manufacturing a write head having a small write pole tip that emits magnetic flux sufficient for effective perpendicular recording. The method creates a leading edge taper (LET) between the write pole tip and a magnetic flux guide to create a sufficient magnetic flux in the write pole. The LET is fabricated by ion milling away a sacrificial striated material whose layers have different rates of ion milling. The top layer of material thus mills away faster than lower layers, creating the required tapering of a negative mold. An endpoint material stops the milling. The LET magnetic material is then spattered into the negative mold, resulting in a well defined taper of magnetic flux shaping material extending the magnetic flux guide to the write pole tip, such that the write pole tip is able to emit sufficient magnetic flux for perpendicular recording.

摘要翻译： 一种用于制造写头的方法，所述写头具有发射足以有效垂直记录的磁通量的小写尖端。 该方法在写极尖和磁通引导之间产生前缘锥形（LET），以在写入极中产生足够的磁通量。 LET通过离子铣削除去具有不同离子铣削速率的牺牲条纹材料来制造。 因此，顶层材料的磨料速度比较低，从而产生了负模具所需的锥形化。 端点材料停止铣削。 然后将LET磁性材料溅入阴模中，产生明确限定的磁通量成形材料的锥形，该磁通量成形材料将磁通引导件延伸到写入磁极尖端，使得写入磁极尖端能够发射足够的磁通量用于垂直记录 。