Mems microphone

Mems microphone

  • CN 204,887,466 U
  • Filed: 07/31/2015
  • Issued: 12/16/2015
  • Est. Priority Date: 07/31/2015
  • Status: Active Grant
First Claim
Patent Images

1. a MEMS microphone, it comprises shell, the wiring board forming spatial accommodation and the asic chip being placed in described spatial accommodation and MEMS chip is connect with described casing cover, described wiring board is provided with the upper surface of close described shell and the lower surface relative with described upper surface, it is characterized in that:

  • described wiring board comprises the body placing described shell and the extension being positioned at described spatial accommodation outside extended outward from described body, the body of described wiring board is provided with the first acoustic aperture be communicated with described spatial accommodation, the extension of described wiring board is provided with the second acoustic aperture for receiving external voice, described wiring board is provided with the communicating passage being communicated with described first acoustic aperture and the second acoustic aperture, described first acoustic aperture and the second acoustic aperture are formed from the downward surface indentation of the upper surface of wiring board but do not pass lower surface.

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