| 摘要 |
PROBLEM TO BE SOLVED: To suppress a short circuit between an inductor and an acoustic wave element.SOLUTION: An acoustic wave device includes: an insulating substrate 20; an inductor 22 formed on an upper surface of the insulating substrate; an element substrate 10 on a lower surface of which an acoustic wave element 12 is formed and which is mounted on the insulating substrate so that the acoustic wave element faces the inductor, and a gap 18 is formed between the acoustic wave element and the inductor; and an insulating film 32 formed on at least one of a lower surface of the acoustic wave element and an upper surface of the inductor.SELECTED DRAWING: Figure 1 |
