The MEMS Sensor Suite on a Chip provides the capability, monolithically
integrated onto one MEMS chip, to sense temperature, humidity, and two
axes of acceleration. The device incorporates a MEMS accelerometer, a
MEMS humidity sensor, and a MEMS temperature sensor on one chip. These
individual devices incorporate proof masses, suspensions, humidity
sensitive capacitors, and temperature sensitive resistors (thermistors)
all fabricated in a common fabrication process that allows them to be
integrated onto one micromachined chip. The device can be fabricated in a
simple micromachining process that allows its size to be miniaturized for
embedded and portable applications. During operation, the sensor suite
chip monitors temperature levels, humidity levels, and acceleration
levels in two axes. External circuitry allows sensor readout, range
selection, and signal processing.