With the rapid growth in microsensor technology, a never-ending range of possible
applications emerged. The developments in fabrication techniques gave room to
the creation of numerous new products that significantly improve human life.
However, the evolution in the design, simulation, and optimization process of
these devices did not observe a similar rapid growth. Thus, the microsensor
technology would benefit from significant improvements in this domain.
This work presents a novel methodology for electro-mechanical co optimization of microelectromechanical systems (MEMS) inertial sensors. The developed
software tool comprises geometry design, finite element method (FEM) analysis, damping calculation, electronic domain simulation, and a genetic algorithm
(GA) optimization process. It allows for a facilitated system-level MEMS design
flow, in which electrical and mechanical domains communicate with each other
to achieve an optimized system performance. To demonstrate the efficacy of the
co-optimization methodology, an open-loop capacitive MEMS accelerometer and
an open-loop Coriolis vibratory MEMS gyroscope were simulated and optimized -
these devices saw a sensitivity improvement of 193.77% and 420.9%, respectively,
in comparison to its original state
