发明授权
- 专利标题： Supplementary shield for CPP GMR read head
- 专利标题（中）： CPP GMR读取头补充屏蔽
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申请号： US10657504申请日： 2003-09-08
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公开(公告)号： US07075758B2公开(公告)日： 2006-07-11
- 发明人: Kunliang Zhang , Kochan Ju , Min Li , Youfeng Zheng , Simon Liao , Yue Liu
- 申请人： Kunliang Zhang , Kochan Ju , Min Li , Youfeng Zheng , Simon Liao , Yue Liu
- 申请人地址： US CA Milpitas
- 专利权人： Headway Technologies, Inc.
- 当前专利权人： Headway Technologies, Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Saile Ackerman LLC
- 代理商 Stephen B. Ackerman
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
Increases in the AP1 and AP2 thickness cause the free layer to be off-center in a CPP magnetic read head. This problem has been overcome by inserting supplementary magnetic shields within the spin valve, located as close as possible to the stack. These supplementary shields enable the read gap width to be reduced by about 430 Å and the free layer to shift back towards the center by about 30 Å.
公开/授权文献
- US20050052789A1 Supplementary shield for CPP GMR read head 公开/授权日：2005-03-10
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