发明申请
- 专利标题： MR sensor with flux guide enhanced hard bias structure
- 专利标题（中）： 带传感器的MR传感器增强了硬偏置结构
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申请号： US12660909申请日： 2010-03-05
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公开(公告)号： US20110215800A1公开(公告)日： 2011-09-08
- 发明人: Yuchen Zhou , Tong Zhao , Kunliang Zhang
- 申请人： Yuchen Zhou , Tong Zhao , Kunliang Zhang
- 专利权人： Headway Technologies, Inc.
- 当前专利权人： Headway Technologies, Inc.
- 主分类号： G01R33/02
- IPC分类号： G01R33/02 ; B44C1/22
摘要：
A CPP MR sensor interposes a tapered soft magnetic flux guide (FG) layer between a hard magnetic biasing layer (HB) and the free layer of the sensor stack. The flux guide channels the flux of the hard magnetic biasing layer to effectively bias the free layer, while eliminating instability problems associated with magnetostatic coupling between the hard bias layers and the upper and lower shields surrounding the sensor when the reader-shield-spacing (RSS) is small.
公开/授权文献
- US08659292B2 MR sensor with flux guide enhanced hard bias structure 公开/授权日：2014-02-25
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