PIEZOELECTRIC VIBRATION PIECE AND PIEZOELECTRIC VIBRATION DEVICE

摘要

A crystal oscillation piece (2) is provided with an electrode forming region for arranging extraction electrodes (65a, 65b), and facing side planes (67a, 67b) of a substrate (6) are formed inclined in the same direction from a front side main plane (63). In the electrode forming region of the extraction electrodes (65a, 65b), bonding reinforcing sections (7) are provided for reinforcing bonding with a conductive bonding material (5). For instance, the bonding reinforcing sections (7) are notched sections formed on the facing side planes (67a, 67b). Thus, the strength of bonding the crystal oscillation piece (2) with the conductive bonding material (5) is improved.