发明名称 |
MAGNETORESISTANCE MAGNETIC FIELD GRADIENT SENSOR |
摘要 |
Disclosed is a magnetoresistive magnetic field gradient sensor, comprising a substrate, a magnetoresistive bridge and a permanent magnet respectively disposed on the substrate; the magnetoresistive bridge comprises two or more magnetoresistive arms; each magnetoresistive arm consists of one or more magnetoresistive elements; each magnetoresistive element is provided with a magnetic pinning layer; the magnetic pinning layers of all the magnetoresistive elements have the same magnetic moment direction; the permanent magnet is disposed adjacent to each magnetoresistive arm to provide a bias field, and to zero the offset of the response curve of the magnetoresistive element; the magnetoresistive gradiometer includes wire bonding pads that can be electrically interconnected using wire bonding to an ASIC or to the lead frame of a semiconductor chip package. |
申请公布号 |
EP2827165(A1) |
申请公布日期 |
2015.01.21 |
申请号 |
EP20130761465 |
申请日期 |
2013.01.29 |
申请人 |
JIANGSU MULTIDIMENSION TECHNOLOGY CO. LTD |
发明人 |
BAI, JIANJUN;DEAK, JAMES GEZA;LIU, MINGFENG;SHEN, WEIFENG |
分类号 |
G01R33/02;G01R33/09 |
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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