PIEZO-OSCILLATOR AND PRODUCTION METHOD THEREOF

摘要

A piezo-oscillator which prevents an exciting electrode from being kept open between the upper surface and the lower surface of a piezo-oscillator piece even when a noble metal layer is partly removed in order to increase the adhesiveness of a surface protection layer; and a production method of the piezo-oscillator. An electrode pattern (40) of an exciting electrode (45) in the piezo-oscillator piece (2) of the piezo-oscillator (1) is formed of a base metal layer (41). An electrode pattern (40) of a conductive electrode (46) is formed of a base metal layer (41) except at portions where the side surfaces (271, 272) of the piezo-oscillator piece (2) have curved or bent shapes. The electrode pattern (40) at those portions is formed of a base material layer (41) and a gold electrode layer (42).