Piezoelectric vibrator and electrode structure of piezoelectric vibrator

摘要

Provided are a piezoelectric vibrator and an electrode structure of the piezoelectric vibrator. The piezoelectric vibrator includes a piezoelectric material vibrating according to an electric signal, first and second electrode structures formed on the upper surface and the undersurface of the piezoelectric material, and including first to fourth layers sequentially stacked thereon, respectively. The first and third layers are formed of an alloy including Cr. The second and fourth layers are formed of Ag or an alloy including Ag.