发明申请
- 专利标题: TUNNELING MAGNETO-RESISTOR DEVICE FOR SENSING A MAGNETIC FIELD
- 专利标题(中): 用于感测磁场的隧道磁电阻器件
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申请号: US14967235申请日: 2015-12-11
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公开(公告)号: US20160291097A1公开(公告)日: 2016-10-06
- 发明人: Keng-Ming Kuo , Ding-Yeong Wang
- 申请人: Industrial Technology Research Institute
- 优先权: TW104110195 20150330
- 主分类号: G01R33/09
- IPC分类号: G01R33/09
摘要:
A tunneling magneto-resistor (TMR) device for sensing a magnetic field includes a first TMR sensor having a first MTJ (magnetic tunneling junction) device and a second MTJ device connected in parallel. Each of the first and second MTJ devices has a pinned layer and a free layer. The pinned layer of each of the first and second MTJ devices has a pinned magnetization at a first pinned direction. The free layers of the first and second MTJ devices have a first free magnetization parallel to and a second free magnetization anti-parallel to a first easy-axis respectively.
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