Patent ID: 9078063
Filing Date: 2015-07-07
Classification: H04R

Abstract:
1. A microphone assembly comprising: a cover; a base comprising: a barrier layer comprised of multiple ports, wherein the multiple ports are offset from the axis of the acoustic port, the barrier layer cooperating with the first and second material layers to form an internal cavity in the base; wherein the multiple ports of the barrier layer and the acoustic port of the first material layer are acoustically coupled to the internal cavity, thereby providing a path for sound from the exterior of the microphone assembly; a microelectromechanical system (MEMS) device having an internal chamber and disposed on the base, wherein the MEMS device is disposed such that its internal chamber is acoustically coupled to the multiple ports of the barrier layer; and a cover attached to the base, wherein the cover cooperates with the base to form an acoustic chamber for the MEMS device.