Patent ID: 11967941
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The acoustic wave device according to claim 1, further comprising:
a ladder filter including a plurality of series-arm resonators and a plurality of parallel-arm resonators, the plurality of series-arm resonators and the plurality of parallel-arm resonators each including an acoustic wave resonator including an IDT electrode; wherein
the plurality of series-arm resonators include a first series-arm resonator and a second series-arm resonator different from the first series-arm resonator, the first series-arm resonator being a series-arm resonator with a highest resonant frequency;
the plurality of parallel-arm resonators include a first parallel-arm resonator and a second parallel-arm resonator different from the first parallel-arm resonator, the first parallel-arm resonator being a parallel-arm resonator with a lowest anti-resonant frequency; and
the heat radiation pattern is positioned to face the IDT electrode of the second series-arm resonator, or the IDT electrode of the second parallel-arm resonator.