Advantages and Disadvantages of MEMS Microphones vs. Electret Condenser Microphones (ECM)

Advantages and Disadvantages of MEMS Microphones:

• MEMS microphones are resistant to high temperatures and reflow soldering, making them suitable for direct SMT (Surface Mount Technology) placement.
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• MEMS microphones offer stable sensitivity without variation. They do not require stored charges or electret materials, resulting in better product stability.
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• MEMS microphones have a flat frequency response curve; however, they cannot be adjusted based on different application scenarios, nor can they be designed for specific directivity patterns.
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Advantages and Disadvantages of Electret Condenser Microphones (ECM):

• ECMs offer high sensitivity and a wide frequency range, with low harmonic distortion. Their frequency response curve can be tailored by adjusting the circuit or materials according to different application scenarios.
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• For environmental noise suppression, ECMs are available in unidirectional or bidirectional designs, offering more flexibility and effective results.
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• ECMs benefit from mature production technology and low cost. However, they require manual assembly and cannot be mounted using surface-mount techniques.