Patent ID: 9699538
Date: 2017-07-04
CPC Classifications: H01L,H04R

Claim:
1. A micro-electro-mechanical system (MEMS) microphone device, comprising: a circuit board; an electromagnetic shielding cover mounted on the circuit board to define an accommodating space, the electromagnetic shielding cover comprising an inner surface and an outer surface; and electronic components received in the accommodating space and electrically connected to the circuit board, the electronic components comprising a MEMS chip and an application specific integrated circuit (ASIC) chip; wherein at least one of the inner surface and the outer surface is provided with a first metal shielding layer, and the MEMS microphone device further comprises a metal shielding member disposed between the electronic components and the electromagnetic shielding cover; wherein at least one of the electromagnetic shielding cover and the metal shielding member is electrically connected to the circuit board; the metal shielding shell is totally separate from the electromagnetic shielding cover so that a gap exists between the electromagnetic shielding cover and the metal shielding shell.