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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
InstitutionsFujian Polytechnic of Information Technology, Tung Fang Design Institute

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.