Vertically integrated MEMS sensor device with multi-stimulus sensing
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United States of America Patent
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Jul 17, 2012
Grant Date -
Sep 30, 2010
app pub date -
Oct 30, 2009
filing date -
Mar 24, 2009
priority date (Note) -
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Abstract
A microelectromechanical systems (MEMS) sensor device (184) includes a sensor portion (180) and a sensor portion (182) that are coupled together to form a vertically integrated configuration having a hermetically sealed chamber (270). The sensor portions (180, 182) can be formed utilizing different micromachining techniques, and are subsequently coupled utilizing a wafer bonding technique to form the sensor device (184). The sensor portion (180) includes one or more sensors (186, 188), and the sensor portion (182) includes one or more sensors (236, 238). The sensors (186, 188) are located inside the chamber (270) facing the sensors (236, 238) also located inside the chamber (270). The sensors (186, 188, 236, 238) are configured to sense different physical stimuli, such as motion, pressure, and magnetic field.
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