发明名称 |
CURRENT SENSOR AND CURRENT SENSOR MANUFACTURING METHOD |
摘要 |
A low-cost current sensor suitable for mass production and a manufacturing method thereof are provided. The current sensor is small with high sensitivity and can be packaged in a standard assembly line which is normally used when an integrated circuit is manufactured. Further, it is possible to obtain a sufficient shielding effect against a disturbance flux without degrading the detecting sensitivity of a flux. A first magnetic material 50 is bonded to the lower part of a current conductor 22C. The first magnetic material 50 has the function of converging and amplifying a flux 3 generated by thecurrent to be measured. A second magnetic material 51 is bonded above a magnetic sensor chip 20. The second magnetic material 51 has a shielding function against a disturbance flux entering from the outside. <IMAGE> |
申请公布号 |
EP1443332(A4) |
申请公布日期 |
2005.09.07 |
申请号 |
EP20020775480 |
申请日期 |
2002.11.01 |
申请人 |
SENTRON AG |
发明人 |
SHIBAHARA, KOJI;YAMAGATA, YO;POPOVIC, RADIVOJE;RACZ, ROBERT |
分类号 |
G01R15/20 |
主分类号 |
G01R15/20 |
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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