| Size | 9 × 9 × 25 mm3 or 4 × 4 × 15 mm3, Other size is available upon request |
|---|---|
| Tolerance of Size | Z-axis: ±0.2 mm, X-axis and Y-axis: ±0.1 mm |
| Chamfer | less than 0.5 mm at 45° |
| Accuracy of Orientation | Z-axis: < ± 5’, X-axis and Y-axis: < ± 10’ |
| Parallelism | < 20" |
| Finish | 10/5 scratch/dig |
| Flatness | λ/8 at 633 nm |
| AR-Coating | R < 0.2 % @ 1064 nm |
| Electrodes | Gold/Chrome Plated on X-Faces |
| Wavefront Distortion | <λ/4 @ 633 nm |
| Extinction Ratio | > 400:1 @ 633 nm, φ6 mm beam |
| Cut Type | SAW Velocity Vs(m/s) | Electromechanical Coupling Factor k2s(%) |
Temperature Coefficient of Velocity TCV (10-6/℃) |
Temperature Coefficient of Delay TCD (10-6/℃) |
|---|---|---|---|---|
| 127.86° Y-X | 3970 | 5.5 | -60 | 78 |
| Y-X | 3485 | 4.3 | -85 | 95 |
| Type Specifications | Boule | Boule | Wafer | Wafer |
|---|---|---|---|---|
| Diameter | Φ3" | Φ4" | Φ3" | Φ4" |
| Length or Thickness (mm) | ≤100 | ≤50 | 0.35-0.5 | 0.35-0.5 |
| Orientation | ※ | ※ | ※ | ※ |
| Ref. Flat Orientation | X, Y | X, Y | X, Y | X, Y |
| Ref. Flat Length | 22 ± 2 mm | 32 ± 2 mm | 22 ± 2 mm | 32 ± 2 mm |
| Front Side Polishing | Mirror polished 5-15 Å | Mirror polished 5-15 Å | ||
| Back Side Lapping | 0.3-1.0 µm | 0.3-1.0 µm | ||
| Flatness (mm) | ≤15 | ≤15 | ||
| Bow (mm) | ≤25 | ≤25 |