MANUFACTURE OF QUARTZ OSCILLATOR

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a quartz oscillator which can stably produce an element which is superior in temperature characteristics and in productivity. SOLUTION: Metal films 21 and 22 (a Cr film) for forming axial inversion part are formed on both sides of electrodes 2 and 3 on a surface of a quartz substrate 1, and then by subjecting this quartz substrate 1 as a whole to heat treatment at a temperature higher than theα.βtransition temperature, axial inversion parts 11 and 12 having an electrical axis in the direction opposite to the electric axis of an excitation part 4 are formed inside the quartz substrate 1.