Table 2.
SAW Mode | Device Configuration and Particle Displacement Profile | Substrate | Guide Layer | Operating Frequency | Substrate Thickness | Application |
---|---|---|---|---|---|---|
R-SAW | Quartz, LiNbO3, ZnO |
NA | 30–300 MHz | >>λ | Gas sensing | |
SH-SAW- Love Mode |
36° YX LiTaO3, ST-Quartz, 64° YX LiNbO3 |
SiO2, ZnO, PMMA, Photoresist |
30–500 MHz | >>λ | Gas sensing, liquid sensing |
|
Lamb Wave (FPW) | ZnO, AlN, PZT |
NA | 2–20 MHz | <<λ | Gas sensing, liquid sensing |
|
SH-A PM | ST-Quartz ZX LiNbO3 |
NA | 25–200 MHz | 3–10 λ | Gas sensing, liquid sensing |