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Electrical and Computer Engineering

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Nipun Sinha

2009

MEMS Logic

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Body-Biased Complementary Logic Implemented Using Aln Piezoelectric Mems Switches, Nipun Sinha, Timothy S. Jones, Zhijun Guo, Gianluca Piazza Dec 2008

Body-Biased Complementary Logic Implemented Using Aln Piezoelectric Mems Switches, Nipun Sinha, Timothy S. Jones, Zhijun Guo, Gianluca Piazza

Nipun Sinha

This paper reports on the first implementation of low voltage complementary logic (< 1.5 V) by using body-biased aluminum nitride (AlN) piezoelectric MEMS switches. For the first time, by using opposite body biases the same mechanical switch has been made to operate as both an n-type and p-type (complementary) device. Body-biasing also gives the ability to precisely tune the threshold voltage of a switch. The AlN MEMS switches have shown extremely small subthreshold slopes and threshold voltages as low as 0.8 mV/dec and 30 mV, respectively. Furthermore, this work presents a fully mechanical body-biased inverter formed by two AlN MEMS switches operating at 100 Hz with a ± 1.5 V voltage swing.