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Updated: Jun 21, 2026
Fabrication of Surface Acoustic Wave Devices on Lithium Niobate
Published on: June 18, 2020
Surface acoustic wave properties of (100) AlN films on diamond with different IDT positions
Zhi-Xun Lin1, Sean Wu, Ruyen Ro
1Department of Electronic Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan, ROC.
Abstract:
(100) AlN films have better surface acoustic wave (SAW) properties than (002) AlN films. In this research, (100) AlN films were combined with diamonds as a new composite SAW substrate. The SAW properties of (100) AlN films on diamonds were analyzed with 4 composite structures: interdigital transducer (IDT)/(100) AlN/diamond, (100) AlN/IDT/diamond, IDT/(100) AlN/metal/diamond, and metal/IDT/(100) AlN/diamond, and they exhibited some excellent SAW properties. Our research results provide a predictable and theoretical basis for further application on high-velocity SAW devices.
