METHOD FOR PRODUCING PIEZOELECTRIC DEVICE AND PIEZOELECTRIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric device that eliminates an adverse effect of characteristics caused by protrusion of a jointing material.

SOLUTION: A piezoelectric device (100) houses a piezoelectric piece (30) having a pair of excitation electrodes. The piezoelectric device comprises: a lid (10) which has a first joint surface (M1) formed in an annular shape around periphery and a lid side recessed portion formed to be recessed from the first joint surface; a base (40) which is formed with a second joint surface (M2) formed in an annular shape corresponding to the first joint surface, a base side recessed portion formed to be recessed from the second joint surface, and a pair of pedestals (45) having a projecting shape from the base side recessed portion and mounting the piezoelectric piece; a tuning-fork type crystal vibration piece (30) which is mounted on a pair of the pedestals; and a non-conductive jointing material (48) which is arranged in an annular shape between the first joint surface and the second joint surface, and joints the first joint surface and the second joint surface. The second joint surface (M1) and a pair of the pedestals (45) are formed on the same plane and at the same height.

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