Patent ID: 8767982
Filing Date: 2014-07-01
Classification: H01L,H04R

Abstract:
1. A microphone module comprising: a substrate having a first side, and a second side opposite the first side, the substrate having an aperture extending from the first side to the second side to allow sound waves to pass through the substrate; a lid mounted to the first side, the first side and lid defining a first interior volume; a microphone mounted to the first side and within the first interior volume; a housing coupled to the second side and covering the aperture, the housing and second side forming a second interior volume, the housing including an acoustic port configured to allow sound to enter the second interior volume; a pipe extending from the acoustic port in the housing, the pipe having an open end to receive sound waves and direct them toward the acoustic port in the housing; and at least one exterior interface pad on the second side and outside of the second interior volume, the at least one exterior interface pad electrically coupled to the microphone.