From phononic crystals to SAW devices

We investigate the possibility of obtaining phononic crystals using materials commonly employed in device microfabrication. Particularly are highlighted the advantages of these crystals in SAW device structures and theirs micro fabrication processes. We focus our attention to theoretical method of waves propagations in two-dimensional phononic crystals made of cylindrical holes drilled in an active polymeric matrix. First numerical results for the simulation of propagation of acoustic waves in a SAW device with phononic crystals are obtained by our work group