Impact of Technology Spreading on MEMS Design Robustness
Résumé
This paper addresses the characterization of MEMS structures, industrially manufactured using front-side bulk micro-machining post-process techniques on CMOS dies. The systematic characterization of mechanical parameters, such as stiffness or mass, on a set of 100 cantilever devices provides us with ground knowledge concerning process parameter variations. Taking into account the foundry-given process parameter spreading such as the layer thickness uncertainties characterization results are compared with simulation results obtained using Monte-Carlo analysis in standard CAD environment. This study can be considered as a first step in the development of a global monolithic MEMS design methodology.
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