发明授权
US06724584B2 Data head and method using a single antiferromagnetic material to pin multiple magnetic layers with differing orientation
有权
数据头和方法使用单个反铁磁材料来引导具有不同取向的多个磁性层
- 专利标题： Data head and method using a single antiferromagnetic material to pin multiple magnetic layers with differing orientation
- 专利标题（中）： 数据头和方法使用单个反铁磁材料来引导具有不同取向的多个磁性层
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申请号： US10152192申请日： 2002-05-20
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公开(公告)号： US06724584B2公开(公告)日： 2004-04-20
- 发明人: Anthony M. Mack , Zheng Gao , Nurul Amin , Sining Mao , Richard Michel
- 申请人： Anthony M. Mack , Zheng Gao , Nurul Amin , Sining Mao , Richard Michel
- 主分类号： G11B539
- IPC分类号： G11B539
摘要：
Methods of fabricating spin valve sensors in accordance with the invention include forming a pinning layer from an antiferromagnetic material and forming a synthetic antiferromagnet adjacent the pinning layer. A free ferromagnetic layer is formed, and exchange tabs are formed adjacent outer portions of the free ferromagnetic layer for biasing the free layer. The exchange tabs are formed from the same antiferromagnetic material as the first pinning layer. Then, the magnetic moments of the synthetic antiferromagnet are set, and the magnetic moment of the free ferromagnetic layer is biased, during a single anneal in the presence of a single magnetic field.