Piezoelectric vibrating piece, piezoelectric device, and method for manufacturing piezoelectric device

A piezoelectric vibrating piece to be bonded to and sandwiched between a lid plate and a base plate with an external electrode, the piezoelectric vibrating piece having a first main surface at the lid plate side and a second main surface at the base plate side, the piezoelectric vibrating piece comprising:

• an excitation unit in a rectangular shape, including a first side and a second side, the first side extending in a first direction, the second side extending in a second direction perpendicular to the first direction;
• a first excitation electrode, on the first main surface of the excitation unit;
• a second excitation electrode, on the second main surface of the excitation unit;
• a framing portion, including a first bonding surface and a second bonding surface, the first bonding surface being a surface to be bonded to the lid plate, the second bonding surface being a surface to be bonded to the base plate, the framing portion surrounding the excitation unit;
• one connecting portion, connecting the first side of the excitation unit and the framing portion together, the connecting portion including a planar surface parallel to both the main surfaces and a side face intersecting with the planar surface;
• a first extraction electrode, being extracted from the first excitation electrode to the second bonding surface of the framing portion via the connecting portion;
• and
• a second extraction electrode, being extracted from the second excitation electrode to the second bonding surface of the framing portion via the connecting portion,
• wherein, the first extraction electrode is disposed on at least a part of the side face of the connecting portion, and the first extraction electrode is extracted to the framing portion.