Patent ID: 8053957

Claim:
A piezoelectric vibrating piece comprising: a piezoelectric plate including a pair of vibrating arm portions arranged in parallel with each other and extended in one direction from base ends to front ends, and a base portion having connecting portions respectively connected to the pair of vibrating arm portions at middle positions with respect to the base ends and the front ends and integrally supporting the pair of vibrating arm portions by way of the connecting portions; exciting electrodes respectively formed on outer surfaces of the pair of vibrating arm portions for vibrating the pair of vibrating arm portions when a drive voltage is applied thereto; and a pair of mount electrodes on an outer surface of the base portion and respectively electrically connected to the pair of exciting electrodes; wherein the base portion is interposed between the pair of vibrating arm portions at least at one portion thereof, and the exciting electrodes are patterned such that polarities thereof are reversed at base end sides and front end sides of the vibrating arm portions.