Piezoelectric wafer, piezoelectric vibration piece, and piezoelectric vibrator

The invention provides a piezoelectric wafer, a piezoelectric vibration piece, and a piezoelectric vibrator. The piezoelectric wafer has: a piezoelectric vibration piece; a frame section that supports the piezoelectric vibration piece; and a connecting section that connects the frame section and the piezoelectric vibration piece to each other. At the connecting section in the piezoelectric wafer, a crystal vibration piece is broken and taken from the frame section. In both the front and rear surfaces of the connecting section, groove-like slits that extend in the width direction of the connecting section are formed, respectively, excluding a connecting section part in the width direction of the connecting section. An electrode on the front and/or rear surface of the piezoelectric vibration piece is led out to the frame section side via the connecting section part in the width direction of the connecting section. 压电晶片具有压电振动片、支撑压电振动片的框部和连结框部和压电振动片的连结部。在压电晶片的连结部处，从框部折取压电振动片。在连结部的表背两面上，除连结部的宽度方向的部分之外，分别形成有沿连结部的宽度