发明名称 |
A magnetic field detection system |
摘要 |
<p>The invention includes a magnetic field detection sensor. The magnetic field detection sensor includes a first magnetic sensor (200) including a first sense layer (220) and a first reference layer (210). A second magnetic sensor (202) includes a second sense layer (222) and a second reference layer (212). The first magnetic sensor is physically oriented relative to the second magnetic sensor so that external magnetic fields detected by the magnetic field detection sensor cause a relative magnetic orientation of the first sense layer to the first reference layer to be opposite of a relative magnetic orientation of the second sense layer to the second reference layer. A differential amplifier can senses the relative magnetic orientations of the first junction sensor and the second junction sensor. <IMAGE></p> |
申请公布号 |
EP1363134(A2) |
申请公布日期 |
2003.11.19 |
申请号 |
EP20030252908 |
申请日期 |
2003.05.09 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
SHARMA, MANISH;PERNER, FREDERICK |
分类号 |
G01R33/09;G11B5/39;H01L43/08;(IPC1-7):G01R33/09 |
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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