| 摘要 |
<p>A process for producing a boundary acoustic wave device having a small variation in frequency is provided. In a process for producing a boundary acoustic wave device that includes a first medium 1, a second medium 2, and a third medium 3 laminated in that order; and electrodes 5 disposed at the interface between the first medium 1 and the second medium 2, the process includes the steps of preparing a laminate including the first medium 1, the second medium 2, and the electrodes 5 disposed at the interface between the first medium 1 and the second medium 2; adjusting the thickness of the second medium 2, after the step of preparing the laminate, to regulate a frequency or the sound velocity of a surface acoustic wave, a pseudo-boundary acoustic wave, or a boundary acoustic wave; after the adjusting step, forming the third medium 3 different from the second medium 2 in terms of the sound velocity with which the boundary acoustic wave propagates therethrough and/or in terms of material.</p> |
