Method of designing a piezoelectric component

A method of manufacturing a piezoelectric component comprising the steps of:

• providing a case having an opening;
• placing a piezoelectric resonator in the case;
• arranging a terminal including an external connecting portion in the case and so as to extend from the opening of the case to outside of the case;
• designing and forming a spring member;
• arranging the spring member in the case and to maintain contact with the piezoelectric resonator and the terminal in the thickness direction;
• wherein
• the step of designing and forming the spring member includes the step of designing the spring member such that the piezoelectric resonator and the terminal are held by a holding pressure applied by the spring and that is in a range not larger than Fmax when a spring height is Smin and not smaller than Fmin when a spring height is Smax, where a thickness range of the piezoelectric resonator, the terminal and the spring member is not smaller than the minimum value of Tmin and not larger than the maximum value of Tmax, a dimension range of the case interior is not smaller than the minimum value of Wmin and not larger than the maximum value of Wmax, a holding pressure range of the piezoelectric resonator and the terminal is not smaller than the minimum value of Fmin and not larger than the maximum value of Fmax, Smin is the spring height when the thickness of the piezoelectric resonator, the terminal and the spring member is the maximum value of Tmax and the dimension range of the case interior is the minimum value of Wmin, and Smax is the spring height when the thickness of the piezoelectric resonator, the terminal and the spring member is the minimum value of Tmin and the dimension range of the case interior is the maximum value of Wmax;
• and
• Fmin is about 100 g, Fmax is about 300 g, Smin is about 40 μm, Smax is about 240 μm, Tmin is about 1940 μm, Tmax is about 2300 μm, Wmin is about 2380 μm, and Wmax is about 2420 μm.