| 摘要 |
Provided is an acoustic wave device which is more compact. This acoustic wave device 1 is provided with: a piezoelectric substrate 2; an IDT electrode 6 which is provided on the piezoelectric substrate 2 and comprises a plurality of first and second electrode fingers and first and second bus bars 6a2, 6b2; a capacitor electrode 8 which comprises a plurality of third and fourth electrode fingers and third and fourth bus bars; an insulating film 9 which is laminated on the capacitor electrode 8; a first wiring line 14 which has a first portion 14b that faces the capacitor electrode 8 with the insulating film 9 being interposed therebetween; and a second wiring line 15 which connects the first bus bar 6a2 and the third bus bar to each other. The capacitor electrode 8 is arranged laterally to the IDT electrode 6 in the direction of propagation of surface acoustic waves. |
