Piezoelectric vibrator for reduction of undesired vibrations

摘要: An earth electrode is formed on a first major surface of piezoelectric substrate, so as to be opposed both and second excitation electrodes which are the substrate. terminal electrode, connected prevented from overlapping with lead line connects electrode. electric insulating film in position line. Accordingly, if conductive adhesive, employed for connecting another spreads beyond not overlapped or adhesive through In consequence, it possible prevent undesirable vibration substrate portions other than between Thus, improve demodulation distortion factor characteristic discriminator, example.