| 摘要 |
An elastic wave device making use of an SH plate wave propagating in LiNbO3 substrates includes a LiNbO3 substrate, IDT electrodes located on at least one surface of the LiNbO3 substrate, and a support which is bonded to the LiNbO3 substrate such that the support is located outside a region provided with the IDT electrodes and supports the LiNbO3 substrate, whereinθof the Euler angles (0°,θ, 0°) of the LiNbO3 substrate ranges from about 92° to about 138° and the thickness of the LiNbO3 substrate ranges from about 0.05λto about 0.25λ, whereλis the wavelength determined by the pitch between electrode fingers of the IDT electrodes. |
