MEMS microphone

MEMS microphone

The utility model discloses a MEMS microphone, including a packaging structure, the last sound hole (3) that is used for receiving the voice signal that is provided with of packaging structure, inside ASIC chip (5) that are provided with MEMS chip (4) that are used for the acoustic -electric convers...

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1. Verfasser: XIE SHIXIANG
Format: Patent
Sprache:eng
Schlagworte:
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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creator XIE SHIXIANG
description The utility model discloses a MEMS microphone, including a packaging structure, the last sound hole (3) that is used for receiving the voice signal that is provided with of packaging structure, inside ASIC chip (5) that are provided with MEMS chip (4) that are used for the acoustic -electric conversion and are used for enlargeing the signal of telecommunication of packaging structure, packaging structure by metal casing (1) and with metal casing (1) matched with multilayer circuit board (2) constitute, metal casing (1) welding is in on the stratum in multilayer circuit board (2). The technical scheme of the utility model, through welding metal casing on the stratum of multilayer circuit board, utilize metal casing and the tight shielding cavity that the stratum formed, improve MEMS microphone's shielding effect to reach the mesh that improves the anti radio frequency interference performance of MEMS microphone.
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subjects DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
title MEMS microphone
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