发明申请
- 专利标题： Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece
- 专利标题（中）： 具有与第一极片磁耦合的写入屏蔽的垂直记录磁头
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申请号： US10631642申请日： 2003-07-30
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公开(公告)号： US20050024766A1公开(公告)日： 2005-02-03
- 发明人: Gautam Khera , Quang Le , Son Nguyen , Aron Pentek , Mason Williams
- 申请人： Gautam Khera , Quang Le , Son Nguyen , Aron Pentek , Mason Williams
- 专利权人： Hitachi Global Storage Technologies, Inc.
- 当前专利权人： Hitachi Global Storage Technologies, Inc.
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B5/31 ; G11B5/33
摘要：
A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.
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