Patent ID: 11882394
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A microphone module, comprising:
a substrate having a first side and an opposing second side;
a cover mounted to the first side of the substrate and at least partially defining a back volume of the microphone module;
a front volume that is separated from the back volume by a sound-responsive element and that is fluidly coupled to a first opening in the substrate;
a non-porous membrane that defines a sealed volume fluidly coupled to the front volume via the first opening, and that provides a liquid-resistant seal between the front volume and a first environment external to the microphone module on an opposing second side of the substrate; and
a second opening in the substrate that extends from the sealed volume defined by the non-porous membrane, through the substrate, to a second environment external to the microphone module on the first side of the substrate.