Document Type

Closed Project

Publication Date

Fall 2015


Jisun Kim

Course Title

Technology Forecasting

Course Number

ETM 532


Technology forecasting techniques are used to predict future technical features and capabilities of products and systems. These techniques are also used to estimate the approximate timeframe in which technological advancements will take place in these products and systems. This paper uses TFDEA to explore the technological Rate-of-Change (RoC) in analog MEMS microphones. Today, MEMS microphones are commonly used in smartphones, tablets, hearing aids, and within automobiles. The market for MEMS microphones now exceeds $1.2 billion. As the technical performance of MEMS microphones continues to improve, the applications in which the microphones are used is expanding, including far field and directional microphone array systems. This paper focuses on the Signal-to-Noise Ratio (SNR), and Acoustic Overload Point (AOP) characteristics of analog MEMS microphones.


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