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High-shear-velocity Composite Acoustic Materials of AlN/Diamond for Biological MEMS Devices

MetadataDetails
Publication Date2019-02-15
JournalSensors and Materials
AuthorsHsi‐Shan Huang, Sean Wu
InstitutionsFuzhou University, Fujian Polytechnic of Information Technology

Shear horizontal (SH) surface acoustic wave (SAW) sensors formed by combining (100) AlN films with a diamond substrate have been developed in this research.The propagation characteristics of SAW in four composite structures according to the positions of interdigital transducer (IDT) electrodes and/or thin metal films were investigated theoretically.Those composite SAW substrates exhibited excellent SH SAW properties and have the potential for further application in biological and liquid SAW sensors.