2023
DOI: 10.35848/1347-4065/acb627
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High electro-mechanical coupling coefficient SAW device with ScAlN on diamond

Abstract: In this study, Sc concentration dependence of ScxAl1-xN /AlN /poly-crystalline diamond /Si surface acoustic wave (SAW) characteristics at high Sc from 23.8 to 44.3 %was investigated by fabricating one-port SAW resonator at high frequency. 3.8 GHz one-port resonator fabricated on Sc0.43Al0.57N showed an excellent performance of electro-mechanical coupling coefficient (K2) as high as 6.34% for 2nd mode Sezawa wave, which enables a wide bandwidth in high frequency applications. The temperature coefficient of freq… Show more

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Cited by 7 publications
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