发明授权
- 专利标题: Giant magnetoresistance element and current sensor using the same
- 专利标题(中): 巨磁阻元件和电流传感器使用相同
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申请号: US14789781申请日: 2015-07-01
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公开(公告)号: US09523746B2公开(公告)日: 2016-12-20
- 发明人: Yosuke Ide
- 申请人: ALPS ELECTRIC CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: ALPS ELECTRIC CO., LTD.
- 当前专利权人: ALPS ELECTRIC CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Beyer Law Group LLP
- 优先权: JP2013-019805 20130204
- 主分类号: G01R33/09
- IPC分类号: G01R33/09 ; H01L43/08 ; H01L43/10 ; G01R15/20 ; G11B5/39
摘要:
A GMR element includes a fixed magnetic layer in which magnetization is fixed; a free magnetic layer in which magnetization is changed by an external magnetic field; and a spacer layer which is positioned between the fixed magnetic layer and the free magnetic layer, in which the free magnetic layer is formed by laminating a CoFe alloy and a CoFeB alloy. A current sensor uses the GMR element.
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