发明授权
US06937448B2 Spin valve having copper oxide spacer layer with specified coupling field strength between multi-layer free and pinned layer structures
失效
旋转阀具有在多层自由和固定层结构之间具有规定的耦合场强的氧化铜隔离层
- 专利标题： Spin valve having copper oxide spacer layer with specified coupling field strength between multi-layer free and pinned layer structures
- 专利标题（中）： 旋转阀具有在多层自由和固定层结构之间具有规定的耦合场强的氧化铜隔离层
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申请号： US10294109申请日： 2002-11-13
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公开(公告)号： US06937448B2公开(公告)日： 2005-08-30
- 发明人: Wen-Yaung Lee , Tsann Lin , Danielle Mauri , Alexander Michael Zeltser
- 申请人： Wen-Yaung Lee , Tsann Lin , Danielle Mauri , Alexander Michael Zeltser
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands, B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands, B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Intellectual Property Law Offices
- 代理商 Robert O. Guillot
- 主分类号： G11B5/012
- IPC分类号： G11B5/012 ; G11B5/31 ; G11B5/39 ; H01L43/08 ; H01L43/10 ; H01L43/12
摘要：
A magnetic head including a spin valve sensor having a sensor layer stack that includes a pinned magnetic layer, a spacer layer formed on the pinned magnetic layer, and a free magnetic layer formed on the spacer layer. In a preferred embodiment the spacer layer is comprised of CuOx. Plasma smoothing of the upper surface of the pinned magnetic layer is conducted prior to depositing the spacer layer, and a preferred plasma gas is a mixture of argon and oxygen.
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