AMO Scientific 4 inch C-Plane Sapphire Wafer
SSP/650um
$82.00
Sale price
$82.00
Regular price
$91.95
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AMO Scientific 4 inch C-Plane Sapphire Wafer
$82.00
Sale price
$82.00
Regular price
$91.95
AMO Scientific 4 inch C-Plane Sapphire Wafer
A sapphire substrate is a thin, flat wafer made from synthetic sapphire, which is a single-crystal form of aluminum oxide (Al₂O₃). It has unique features such as:
- Extremely hard (second only to diamond)
- High thermal stability (can withstand very high temperatures)
- Excellent electrical insulation
- Optically transparent (from UV to infrared, depending on thickness)
- Chemically inert (resistant to acids and harsh environments)
These properties make sapphire an ideal base material (“substrate”) for growing or supporting other materials.
AMO Scientific offers customized sapphire wafers. If you don't find the standard products work for your need, please feel free to reach us.
Specifications:
| Category | Specification |
|---|---|
| Product SKU | AMO-SA0107 (SSP), AMO-SA0108 (DSP) |
| Material | High Purity >99.99%, single crystal Al₂O₃ |
| Diameter | 100.0 mm ± 0.10 mm |
| Thickness | 650 µm ± 25 µm (SSP); 600 µm ± 25 µm (DSP), other thickness available upon request |
| Lattice Parameters | a = 4.785 Å, c = 12.991 Å |
| Density | 3.98 g/cm³ |
| Orientation | C-plane (0001) to M (1-100), 0.2° ± 0.1° off |
| Primary Flat Orientation | A-plane [11-20] ± 0.2° |
| Primary Flat Length | 30.0 ± 1.0 mm |
| TTV (Total Thickness Variation) | < 5 µm (SSP), ≤ 6 µm (DSP) |
| Bow | -10 to 0 µm |
| Warp | < 10 µm (SSP), ≤ 20 µm (DSP) |
| Thermal Expansion Coefficient | 6.66 × 10⁻⁶ /°C (parallel to C-axis); 5 × 10⁻⁶ /°C (perpendicular) |
| Dielectric Strength | 4.8 × 10⁵ V/cm |
| Dielectric Constant | 11.5 (1 MHz, parallel to C-axis); 9.3 (1 MHz, perpendicular) |
| Dielectric Loss Tangent | < 1 × 10⁻⁴ |
| Thermal Conductivity | 40 W/(m·K) at 20°C |