| 摘要 |
PURPOSE:To obtain a piezoelectric oscillator of small size and thickness and withstanding shock by providing two substrates to both sides of a thickness shear oscillation piezoelectric element, so that the center of both major planes of the piezoelectric element is fixed contactlessly by bonding layers of circular shape corresponding to outer circumference of both sides. CONSTITUTION:The thickness shear crystal oscillator 1 has two substrates 5, 6, by which the center of both major planes 2a, 2b is fixed contactlessly by the circular bonding layers 3, 4 provided corresponding to the outer circumference of the crystal chip. Driving electrodes 7, 8 are formed on both major planes of the crystal chip 2 and leads electrodes 7a, 8a are led out from both major planes. Conductor patterns 9, 10 are formed on the substrates 5, 6 by means of control. Then, the piezoelectric oscillator of small size and thickness and withstanding shock is obtained. |
