发明名称 |
APPARATUS AND METHOD FOR SEQUENTIALLY RESETTING ELEMENTS OF A MAGNETIC SENSOR ARRAY |
摘要 |
A semiconductor process and apparatus provide a high-performance magnetic field sensor with three differential sensor configurations which require only two distinct pinning axes, where each differential sensor is formed from a Wheatstone bridge structure with four unshielded magnetic tunnel junction sensor arrays, each of which includes a magnetic field pulse generator for selectively applying a field pulse to stabilize or restore the easy axis magnetization of the sense layers to orient the magnetization in the correct configuration. prior to measurements of small magnetic fields. The field pulse is sequentially applied to groups of the sense layers of the Wheatstone bridge structures, thereby allowing for a higher current pulse or larger sensor array size for maximal signal to noise ratio. |
申请公布号 |
WO2012115924(A3) |
申请公布日期 |
2014.05.08 |
申请号 |
WO2012US25858 |
申请日期 |
2012.02.21 |
申请人 |
EVERSPIN TECHNOLOGIES, INC.;ENGEL, BRADLEY;MATHER, PHILLIP |
发明人 |
ENGEL, BRADLEY;MATHER, PHILLIP |
分类号 |
G01R33/02 |
主分类号 |
G01R33/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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