METHOD FOR MANUFACTURING PIEZOELECTRIC VIBRATOR, PIEZOELECTRIC VIBRATOR, OSCILLATOR, ELECTRONIC EQUIPMENT, AND RADIO-CONTROLLED CLOCK

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a piezoelectric vibrator capable of forming an insulating film at high speed and at low temperature with respect to a piezoelectric vibration piece and also forming an insulating film on a side surface of the piezoelectric vibration piece.

SOLUTION: A method for manufacturing a piezoelectric vibrator comprises the steps of: (A) forming a base metal layer 18a made of chrome and a finished metal layer 18b made of gold on surfaces of a mounting region P and a vibration region R in a piezoelectric vibration piece 2 in a lamination state before a step of mounting the piezoelectric vibration piece 2 on the mounting region P; (E) peeling the finished metal layer 18b from the vibration region R; spray-coating a solution containing an insulating film material on an upper layer of the base metal layer 18a after peeling the finished metal layer 18b; and (F) forming an insulating film 34 on the vibration region R by drying the coated solution.

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