Patent ID: 7116040

Claim:
An electronic component, comprising: a first piezoelectric thin film resonator; and a second piezoelectric thin film resonator provided next to the first piezoelectric thin film resonator, each of the first piezoelectric thin film resonator and second piezoelectric thin film resonator being a piezoelectric thin film resonator that has a structure in which a piezoelectric thin film is interposed between a first electrode film and a second electrode film, that is constituted in an area where the first electrode film, the piezoelectric thin film, and the second electrode film overlap each other, and that obtains a signal with a predetermined resonance frequency by bulk waves propagating inside the piezoelectric thin film, wherein, when assuming two straight lines intersecting at a part of a periphery of the first piezoelectric thin film resonator and a part of a periphery of the second piezoelectric thin film resonator which face each other, the distance between a point at the intersection of one of the two straight lines with the part of the first piezoelectric thin film resonator and a point at the intersection of the straight line with the part of the second piezoelectric thin film resonator is different from the distance between a point at the intersection of the other straight line of the two straight lines with the part of the first piezoelectric thin film resonator and a point at the intersection of the other straight line with the part of the second piezoelectric thin film resonator, the first piezoelectric thin film resonator and the second piezoelectric thin film resonator have an elliptical shape, and an extension of a major axis with respect to the periphery of the first piezoelectric thin film resonator intersects with a major axis or an extension thereof with respect to the periphery of the second piezoelectric thin film resonator.