| 摘要 |
An electronic component ( 1 ) includes a substrate ( 2 ) and at least two piezoelectric resonators ( 3, 4 ) each having an active element ( 6, 9 ), a lower electrode ( 5, 8 ) and an upper electrode ( 7, 10 ). The lower electrode ( 5 ) of the first resonator ( 3 ) is made of a material that is different from that of the lower electrode ( 8 ) of the second resonator ( 4 ) such that the resonators exhibit different resonance frequencies.
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