Piezoelectric vibrating reed, piezoelectric vibrator, method of manufacturing piezoelectric vibrator, oscillator, electronic apparatus, and radio-controlled timepiece

摘要

There are provided a piezoelectric vibrating reed which can be reliably bonded ultrasonically and which can be efficiently manufactured, a piezoelectric vibrator, a method of manufacturing a piezoelectric vibrator, an oscillator, an electronic apparatus, and a radio-controlled timepiece. A piezoelectric vibrating reed includes: a piezoelectric plate having vibrating portions and a base portion adjacent to the vibrating portions; excitation electrodes formed in the vibrating portions; mount electrodes formed in the base portion; lead-out electrodes for making the excitation electrodes and the mount electrodes electrically connected to each other; and a passivation film which is formed of an electrically insulating material and covers the excitation electrodes and the lead-out electrodes. These electrodes disposed on one surface of the base portion are formed only in a region covered by the passivation film.