Piezoelectric vibrating piece and piezoelectric device

A piezoelectric vibrating piece, comprising:

• an excitation unit in a rectangular shape, the excitation unit including:
• a pair of principal surfaces;
• a pair of excitation electrodes, formed on the pair of principal surfaces;
• a first side that extends in a first direction;
• a second side that extends in a second direction, the second side being longer than the first side, the second direction being perpendicular to the first direction;
• a framing portion, surrounding the excitation unit;
• and
• a connecting portion, connecting the excitation unit to the framing portion, the connecting portion having a third side and a fourth side, the third side being connected to the first side and extending in the first direction, the fourth side being connected to the framing portion and extending in the first direction, a thickness of the connecting portion being thinner than a thickness of the framing portion, wherein,
• the third side has a different length from that of the fourth side.