| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that the outer shape of a crystal vibrating plate is formed by cutting work in a conventional high frequency crystal resonator, a metallic film or the like cannot be formed on the surface of a side on which a container connecting electrode is formed on a reinforcing part constituting the crystal vibrating plate, so that it is difficult to make container connecting electrodes formed on front and rear main surfaces of the reinforcing part conductive. <P>SOLUTION: In the crystal vibrating plate comprising a rectangular piezoelectric oscillation area oscillated at a required frequency and a reinforcing part formed thicker than the piezoelectric oscillation area so as to surround the outer periphery of the piezoelectric oscillation area and having a rectangular outer peripheral shape integrally with the piezoelectric oscillation area, grooves penetrated into the front and rear surfaces of the reinforcing part on the outer peripheral side face of the reinforcing part on which container connecting electrodes are formed, and inter-electrode connecting electrodes for electrically connecting the container connecting electrodes formed on the front and rear surfaces of the reinforcing part are formed on surfaces of the grooves. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
