| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric vibration piece and a piezoelectric vibrator capable of reducing occurrence of vibration leakage while suppressing breakage of support arm portions and having high mounting strength.SOLUTION: A piezoelectric vibration piece 100 includes: a base portion 110; a pair of vibration arm portions 120A, 120B extended from the base portion 110 in a first (+Y) direction and arranged so as to be separated from each other in a second (X) direction intersecting the first (+Y) direction; and support arm portions 130A, 130B extended from the base portion 110 in the first (+Y) direction. Each support arm portion 130A (130B) includes a first arm portion 133 formed so that width to be length along the second (X) direction is gradually narrowed to a direction of the tip portion 130Z side of the support arm portion 130A (130B) and a second arm portion 134 extended from the first arm portion 133 in the first direction (+Y) and formed so that the width is gradually widened to a direction of the tip portion 130Z side.SELECTED DRAWING: Figure 6 |
