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US Patent 9078063 Microphone assembly with barrier to prevent contaminant infiltration

Patent 9078063 was granted and assigned to Knowles (company) on July, 2015 by the United States Patent and Trademark Office.

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Patent abstract

A microphone assembly includes a cover, a base coupled to the cover, a microelectromechanical system (MEMS) device disposed on the base. An opening is formed in the base and the MEMS device is disposed over the opening. The base includes a barrier that extends across the opening and is porous to sound. The remaining portions of the base do not extend across the opening.

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