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ACOUSTIC SIGNAL TO ELECTRIC SIGNAL CONVERTING DEVICE CAPABLE OF PREVENTING THE DAMAGE DUE TO DIFFERENT MANUFACTURING ENVIRONMENT AND A MANUFACTURING METHOD THEREOF
ACOUSTIC SIGNAL TO ELECTRIC SIGNAL CONVERTING DEVICE CAPABLE OF PREVENTING THE DAMAGE DUE TO DIFFERENT MANUFACTURING ENVIRONMENT AND A MANUFACTURING METHOD THEREOF
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机译:能够防止因不同制造环境而造成损坏的电信号转换装置的声音信号及其制造方法
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摘要
PURPOSE: An acoustic signal to electric signal converting device and a manufacturing method thereof are provided to improve a vibrating function by flexibly operating the thinning process of a vibration plate.;CONSTITUTION: A back chamber(BC) is formed in a substrate(101). A vibration plate(102) is formed on the substrate in order to cover up the back chamber. A variable electrode(103) is formed on the suspending area of the vibration plate corresponding to the back chamber. A cover plate(105) defines an acoustic hole and an air gap. The cover plate is formed in the vibration plate in order to cover up the variable electrode. The cover plate operates as the fixed electrode corresponding to the variable electrode. The cover plate is formed by an electroplating process utilizing a polymer based sacrificial layer.;COPYRIGHT KIPO 2010
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