| 摘要 |
<p>At least one pair of excitation electrodes (291, 292) and at least one pair of lead-out electrodes (293, 294) are formed on a piezoelectric vibrating reed (2), the at least one pair of lead-out electrodes (293, 294) being led out of the pair of excitation electrodes (291, 292) in order to electromechanically connect the pair of excitation electrodes (291, 292) to an external electrode (32). The respective leading edge parts of the pair of lead-out electrodes (293, 294) have connection electrodes (295, 296) that are lead out close to an end section of a primary face (235) of the piezoelectric vibrating reed (2). A first metal film (M1) to be connected to the external electrode (32) is formed on the top surface of each connection electrode (295, 296). The first metal film (M1) has, on the top surface, two or more convex parts (T), the surface of the first metal film (M1) being rougher, and the area being smaller, than those of each connecting electrode (295, 296). The cross-section of the convex part (T) is curved.</p> |
