| 摘要 |
<p>A piezoelectric resonator (10) has a rectangular-parallelepiped-shaped base member (12). The base member (12) includes laminated 20 piezoelectric layers (12a). The piezoelectric layers(12a) are polarized in the longitudinal direction of the base member (12) such that the directions of polarization differ at adjacent piezoelectric layers (12a). Internal electrodes (14) are formed between the piezoelectric layers (12a). The internal electrodes (14) are formed in six stripes on main surfaces of the piezoelectric layers (12a). On opposing side faces of the base member (12), the internal electrodes (14) are alternately covered by insulating films (16,18). The insulating films (16,18) cover different internal electrodes (14). External electrodes (20,22) are formed on the opposing side faces of the base member (12) and are connected to internal electrodes (14).</p> |
