发明名称 |
SINGLE-CHIP REFERENCE FULL-BRIDGE MAGNETIC FIELD SENSOR |
摘要 |
<p>The present invention discloses a single-chip referenced full-bridge magnetoresistive magnetic-field sensor. The single-chip sensor is a Wheatstone bridge arrangement of magnetoresistive sensing elements and reference elements. The sensing elements and reference elements are formed from either magnetic tunnel junctions or giant magnetoresistive materials. The sensitivity of the reference and sensor elements is controlled through one or a combination of magnetic bias, exchange bias, shielding, or shape anisotropy. Moreover, the bridge output is tuned by setting the ratio of the reference and sensor arm resistance values to a predetermined ratio that optimizes the bridge output for offset and symmetry. The single-chip referenced-bridge magnetic field sensor of the present invention exhibits excellent temperature stability, low offset voltage, and excellent voltage symmetry.</p> |
申请公布号 |
EP2700968(A1) |
申请公布日期 |
2014.02.26 |
申请号 |
EP20120773589 |
申请日期 |
2012.04.06 |
申请人 |
JIANGSU MULTIDIMENSION TECHNOLOGY CO. LTD |
发明人 |
DEAK, JAMES, GEZA;JIN, INSIK;SHEN, WEIFENG;XUE, SONGSHENG;LEI, XIAOFENG |
分类号 |
G01R33/09;G01B7/30;G01D5/16;G01R33/00;G01R33/02;H01L43/02;H01L43/08 |
主分类号 |
G01R33/09 |
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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