Electronic component and method for manufacturing the same

摘要

An electronic component is provided with a substrate (101); a piezoelectric material layer (102) supported directly or indirectly by the substrate (101); a first electrode (103) arranged on a surface of the piezoelectric material layer (102) on an opposite side of the substrate; and a second electrode (104) arranged on a surface of the piezoelectric material layer on the substrate side. The piezoelectric material layer (102) is sandwiched between the first electrode (103) and the second electrode (104). The first electrode (103) has a smaller surface area than the piezoelectric material layer (102). A portion where the piezoelectric material layer (102) is exposed from the first electrode (103) includes a portion that is thinner than a thickness of the piezoelectric material layer between the first electrode and the second electrode. Thus, it is possible to configure a resonator with a higher frequency than its ordinary resonance, and it is easy to achieve an adjustment of the resonance frequency of the resonator, as well as improving the yield of the component and enabling the configuration of an electronic component that includes a plurality of resonators of different frequencies.