SANICO electret microphone ECM Description:
1、electret (Electret): long-term to maintain electrode state of the dielectric. This dielectric is generally a polymer. For example: polypropylene, polytetrafluoroethylene and so on.
2、Microphone (Microphone): The acoustic signal is converted to electrical transducers.
3、ECM (Electret Capacitor Microphone): electret condenser microphones, which are classified as follows:
1) diaphragm (Foil)
2) back (Back)
3) Front (Front)
4、SMT electret microphone: low-end price for the smart phone
5、F-PCB & Leader Microphone: For ordinary 2G function machine

SANICO electret microphone ECM structure diagram:

Lead way	Welding method	Pin way

SANICO silicon microphones ECM and electret microphones main features:

Electret microphones	Silicon microphone
*Low price  *Suitable for a wide range of production: Wide sensitivity / SNR product types  *Very powerful mechanical shock or blow  *more original soundtrack	*Resistant to moisture  *Digital output signal is available  *Various functions can be added  *no change in performance after reflow; fully automated production system is feasible  *RF anti-interference ability  *Narrow sensitivity distribution