| 摘要 |
A surface acoustic wave device includes a piezoelectric substrate including an R-plane, a-plane, or m-plane sapphire substrate and a LiNbO3 film of (90°, 90°, −15° to 15°) or (0°, 90°, −15° to 15°) in terms of Euler angles (&phgr;, &thetas;, Ψ) disposed on the sapphire substrate, and electrodes disposed on the piezoelectric substrate and made of metal. |
