| 摘要 |
PURPOSE: A vibrating piece, a frequency control method, a vibrator, a vibration device, and an electronic device are provided to glue a film on a first mass part or second mass part using a sputtering or evaporation process, thereby increasing the mass of a mass part. CONSTITUTION: A vibrating piece comprises a base part, a vibration arm(28), a first mass part(51), and a second mass part(54). The vibration arm vibrates with bending along Z-axis which is orthogonal to Y-axis. The first mass part and second mass part are arranged in the upper part of the vibration arm. A part or all of the first mass part and second mass part are eliminated by energy beam projection. The first mass part and second mass part adjust a resonant frequency of the vibration arm. The first mass part is arranged in the upper part of a first surface of the vibration arm. The second mass part is arranged in the upper part of a second surface of the vibration arm. The first mass part and second mass part include a part which is not overlapped when observed along the Z-axis. |
