A Micro-Machined Microphone Based on a Combination of Electret and Field-Effect Transistor

Capacitive-type transduction is now widely used in MEMS microphones. However, its sensitivity decreases with reducing size, due to decreasing air gap capacitance. In the present study, we proposed and developed the Electret Gate of Field Effect Transistor (ElGoFET) transduction based on an electret...

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Bibliographic Details
Main Authors: Kumjae Shin, Junsik Jeon, James Edward West, Wonkyu Moon
Format: Article
Language:English
Published: MDPI AG 2015-08-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/15/8/20232