All-Oxide Crystalline Microelectromechanical systems Fabrication technique for strontium titanate micro-cantilevers

A microelectromechanical system (MEMS) entirely made of crystalline oxides is presented. A suspended SrTiO3 (001) microcantilever is employed as flexible substrate for the deposition of epitaxial transition-metal oxide films. A strain-generator device for epitaxial oxide films can be fabricated. Strain at surface can be performed by bending downward the microcantilever. The mechanical properties of these oxide MEMS are modeled by finite element methods and are in accordance with preliminary mechanical characterizations performed with Atomic Force Microscopy. Evaluation of the applied strain and its distribution along the microcantilever is also given.