FLEXURAL VIBRATION PIECE, A FLEXURAL VIBRATOR, AND AN ELECTRONIC DEVICE, CAPABLE OF SUPPRESSING THE DETERIORATION OF A Q VALUE DUE TO THERMAL ELASTICITY LOSS

摘要

PURPOSE: A flexural vibration piece, a flexural vibrator, and an electronic device are provided to make a frequency of a flexural vibration more distant from a frequency of a heat relaxation vibration by increasing a conduction path of heat from a contraction side to an extension side.;CONSTITUTION: A crystal vibration piece(1) includes a base(10) and one pair of vibration arms(20,21) extended from the base. One pair of vibration arms are extended from one end of the base to a Y axial direction. Each of one pair of vibration arms has a first groove(24,25) and a second groove(28,29). The first groove is formed along the extension direction of the vibration arm on a main surface(22,23) of one vibration arm. The second groove is formed on other main surface(26,27) of the vibration arm.;COPYRIGHT KIPO 2011