Citation: |
Ning Jin, Liu Huanzhang, Ge Yongcai, Liu Zhongli. Fabrication of Silicon Condenser Microphone Using Porous Silicon aa Sacrificial Layer[J]. Journal of Semiconductors, 2003, 24(S1): 187-191.
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Ning J, Liu H Z, Ge Y C, Liu Z L. Fabrication of Silicon Condenser Microphone Using Porous Silicon aa Sacrificial Layer[J]. Chin. J. Semicond., 2003, 24(S1): 187.
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Fabrication of Silicon Condenser Microphone Using Porous Silicon aa Sacrificial Layer
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Abstract
A new technology for the fabrication of silicon condenser microphones is presented. The technology is based on the use of porous silicon as sacrificial layer for the acoustic holes and the polyimide diaphragm for the acoustic membrane. The microphone with an open-circuit sensitivity of -107. 8dB and a flatter frequency response between 400Hz and 10kHz has been fabricated with this technology. The microphone can be used for acoustic communication. -
References
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