sapphireAl2o3Sub.headerTitle
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sapphireAl2o3Sub.heading1
sapphireAl2o3Sub.overviewP1
sapphireAl2o3Sub.overviewP2
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sapphireAl2o3Sub.heading2
sapphireAl2o3Sub.growthMethodsDesc
Kyropoulos (KY)
sapphireAl2o3Sub.growthMethodKySubtitle
sapphireAl2o3Sub.growthMethodKyDesc
Edge-Defined Film-Fed (EFG)
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sapphireAl2o3Sub.growthMethodEfgDesc
Heat Exchanger Method (HEM)
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sapphireAl2o3Sub.growthMethodHemDesc
sapphireAl2o3Sub.heading3
sapphireAl2o3Sub.orientationHeading
sapphireAl2o3Sub.cplaneTitle
sapphireAl2o3Sub.cplaneDesc
sapphireAl2o3Sub.rplaneTitle
sapphireAl2o3Sub.rplaneDesc
sapphireAl2o3Sub.aplaneTitle
sapphireAl2o3Sub.aplaneDesc
sapphireAl2o3Sub.heading4
sapphireAl2o3Sub.pssP1
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sapphireAl2o3Sub.sosP1
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sapphireAl2o3Sub.heading6
| Parameter | Available Range / Values |
|---|---|
| Material | Single-crystal α-Al₂O₃ (Sapphire), various grades |
| Crystal Orientation | C-plane (0001), R-plane (1-102), A-plane (11-20), M-plane (10-10) |
| Diameter | 2″ (50.8mm), 3″ (76.2mm), 4″ (100mm), 6″ (150mm), 8″ (200mm) |
| Thickness | 330μm, 430μm, 650μm, 1,000μm standard |
| Surface Polish | SSP, DSP, Epi-Ready CMP, RMS < 2Å |
| TTV | ≤ 5μm |
| Bow / Warp | Bow ≤ 10μm, Warp ≤ 15μm for 4″ diameter |
| EPD (Etch Pit Density) | < 5 × 10³/cm² |
| Hardness | 9 Mohs, 2,000 kg/mm² Knoop |
| Thermal Conductivity | 40 W/m·K @ 300K |
| CTE | 5.0–6.6 × 10⁻⁶/K (anisotropic, orientation-dependent) |
| Melting Point | 2,040°C |
| Bandgap | 9.9 eV (wide-bandgap optical insulator) |
| Refractive Index | nₒ = 1.768, nₑ = 1.760 @ 633nm |
| Transmission Range | 150nm–5,500nm (UV-grade: 85% @ 250nm) |
| Miscut Tolerance | ±0.2° standard, ±0.05° precision |
| Packaging | Class 100 cleanroom, vacuum-sealed single-wafer cassette |
sapphireAl2o3Sub.heading7
sapphireAl2o3Sub.appLedEpitaxy
sapphireAl2o3Sub.appLedEpitaxyDesc
sapphireAl2o3Sub.appLaserDiodes
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sapphireAl2o3Sub.appSos
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sapphireAl2o3Sub.appPss
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sapphireAl2o3Sub.appRfMicrowave
sapphireAl2o3Sub.appRfMicrowaveDesc
sapphireAl2o3Sub.appOpticalWindows
sapphireAl2o3Sub.appOpticalWindowsDesc
sapphireAl2o3Sub.heading8
sapphireAl2o3Sub.metrologyDesc
sapphireAl2o3Sub.ctaHeading
sapphireAl2o3Sub.ctaDesc