PIEZOELECTRIC OSCILLATING PIECE, METHOD FOR MANUFACTURING PIEZOELECTRIC OSCILLATING PIECE, PIEZOELECTRIC OSCILLATOR, AND ELECTRONIC EQUIPMENT MOUNTED WITH PIEZOELECTRIC OSCILLATOR

摘要

PROBLEM TO BE SOLVED: To provide a compact piezoelectric oscillating piece for acquiring stable oscillating characteristics, a method for manufacturing the piezoelectric oscillating piece, a piezoelectric oscillator and electronic equipment mounted with the piezoelectric oscillator.

SOLUTION: A piezoelectric oscillating piece 100 is provided with a plurality of bar-shaped arm parts 121, a base part 130 to which one end of each of the arm parts 121 is connected, oscillating arms where weight parts 110 wider than the arm parts 121 are formed at the other ends of the arm parts 121 and groove parts 122 are formed on the surface and back faces along an oscillation center of the oscillating parts 120. Further, protruding parts 116 are provided which extend from the weight parts 110 and are provided while being spaced apart from the arm parts 121.

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