Quartz Crystal Resonator and Manufacturing Method Thereof

A method of making a quartz crystal resonator, comprising:

• obtaining a quartz bar;
• determining a cutting plane in a coordinate system comprising an optic axis, an electrical axis and a mechanical axis perpendicular to each other for cutting the quartz bar, the cutting plane having a first angle of about 35° to about 36° from the optic axis and a second angle of about 14° to about 16° from the electrical axis;
• and
• cutting the quartz bar along the cutting plane to obtain a quartz crystal of the quartz crystal resonator.

A method of making a quartz crystal resonator, comprising:

• obtaining a quartz bar in a coordinate system comprising an optic axis, an electrical axis and a mechanical axis perpendicular to each other;
• orienting the quartz bar to position a cutting plane of the quartz bar at an AT-cut angle;
• orienting the quartz bar to position the cutting plane at an angle of about 14° to about 16° from the electrical axis;
• and
• cutting the quartz bar along the cutting plane to obtain a quartz crystal of the quartz crystal resonator.