Piezoelectric vibrator and manufacturing method thereof

摘要

In the piezoelectric vibrator, a plate includes a thin quartz plate portion for generating vibrations, and non-contact electrodes for applying an alternating electric field are arranged above the thin quartz plate portion at both sides thereof so as not to contact with the thin quartz plate portion. The electrodes may be formed on a supporter which can be bonded directly with the thin quartz plate. The electrodes may also be formed above the thin quartz plate and supported by the plate outside the thin quartz plate portion. The piezoelectric vibrator has a superior Q of resonance at high frequencies.