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专利名称：METHOD AND STRUCTURE FOR TESTING
AND CALIBRATING MAGNETIC FIELDSENSING DEVICE
发明人：Phillip Mather申请号：US12684692申请日：20100108
公开号：US20110169488A1公开日：20110714
专利附图：
摘要：A method of sensing a magnetic field including at least one magnetoresistivesensing element () in a circuit () includes supplying () a first plurality of currents to a
stabilization line () disposed adjacent the magnetoresistive sensing element (), applying ()a second plurality of currents to a self test line () disposed adjacent the magnetic tunneljunction (), one each of the first plurality of currents being supplied during one each ofthe second plurality of currents. Values sensed by the magnetic tunnel junction sensingelement () in response to the supplying () of the first plurality of currents and theapplying () of the second plurality of currents are sampled () and the sensitivity of themagnetic tunnel junction sensor () and electrical and magnetic offset are determined ()from the sampled values. The temperature coefficient of offset may also be determined.
申请人：Phillip Mather
地址：Maricopa AZ US
国籍：US
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