Patent ID: 8253242

Claim:
A sensor assembly, comprising: a sound sensor, comprising: a substrate defining a first cavity; a diaphragm positioned on the substrate and covering the first cavity, wherein a plurality of first vents is defined in a peripheral portion of the diaphragm and communicates with the first cavity, and a first electrode layer is coated on the diaphragm and faces the first cavity; a back plate covering the diaphragm and positioned on the substrate, wherein a second cavity is defined between the diaphragm and the back plate and communicates with the first vents, a second electrode layer is coated on the back plate and faces the second cavity, and a plurality second vents is defined in the back plate and communicates with the second cavity; and a capacitance electrically connected between the first and second electrode layers; an image sensor positioned on the substrate; an acceleration sensor positioned on the substrate; and a gyroscope sensor positioned on the substrate.