INTEGRATED MULTI-AXIS HYBRID MAGNETIC FIELD SENSOR
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United States of America Patent
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Issued Date -
Sep 29, 2011
app pub date -
Mar 24, 2010
filing date -
Mar 24, 2010
priority date (Note) -
Abandoned
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Abstract
A multi-axis magnetic field sensing device combines two magnetoresistive sensors to measure the two orthogonal components X, Y of a magnetic field parallel to a system's plane and a Hall sensor to measure the Z component of the magnetic field substantially perpendicular to the system's plane. The two magnetoresistive sensors may be built together in one single chip and then stacked on top of a CMOS die embedding the Hall sensor and associated electronics for the signal processing management of the three sensors and the system's interface.
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