MEMS microphone and electronic equipment

The invention relates to the technical field of microphones, in particular to an MEMS microphone and electronic equipment. The MEMS microphone comprises a circuit board, a shell, an MEMS chip and a double-layer gasket, the circuit board is provided with a sound hole, the MEMS chip is connected with...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU GENGLIANG, DONG NANJING
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the technical field of microphones, in particular to an MEMS microphone and electronic equipment. The MEMS microphone comprises a circuit board, a shell, an MEMS chip and a double-layer gasket, the circuit board is provided with a sound hole, the MEMS chip is connected with the circuit board, the MEMS chip and the sound hole are arranged correspondingly, the shell covers the circuit board, a sound cavity is defined by the shell and the circuit board, the MEMS chip is arranged in the sound cavity, the double-layer gasket covers the sound hole, and the double-layer gasket covers the circuit board. The double-layer gasket comprises a first layer, a second layer and a through hole penetrating through the first layer and the second layer, the sound hole is communicated with the sound cavity through the through hole, the first layer faces the sound cavity, the second layer faces the sound hole, and the side, facing the sound hole, of the second layer is sticky. According to the MEMS microph