Patent ID: 8804982

Claim:
A transducer package, comprising: at least a first MEMS transducer and a second MEMS transducer, wherein said first MEMS transducer is acoustically coupled to said second MEMS transducer; a signal processing circuit, wherein said first and second MEMS transducers are electrically connected to said signal processing circuit; a plurality of terminal pads electrically connected to said signal processing circuit; a transducer enclosure, said transducer enclosure housing said first and second MEMS transducers, wherein said transducer enclosure further comprises a substrate and a cover attached to said substrate, wherein said first and second MEMS transducers are attached to said substrate, wherein said substrate further comprises a first aperture aligned with a first transducer aperture corresponding to said first MEMS transducer, wherein said substrate further comprises a second aperture aligned with a second transducer aperture corresponding to said second MEMS transducer, wherein a transducer back volume is substantially defined by an inner surface of said cover, said first and second MEMS transducers, and a surface of said substrate, wherein said transducer back volume is common to said first and second MEMS transducers, wherein said transducer enclosure further comprises a third aperture acoustically coupling said transducer back volume to an ambient acoustic environment, and wherein said first MEMS transducer is electrically combined with said second MEMS transducer in phase to form a directional microphone.