MSE PRO Prime Grade 4 Inch R-plane (1-102) Al₂O₃ Sapphire Substrate, 4" x 650um

MSE PRO™ Prime Grade 4 Inch R-plane (1-102) Al₂O₃ Sapphire Substrate, 4" x 650um

Customized sapphire wafers and windows are available upon request.

• Product SKU#: WA0446 (DSP)
• Material: High purity >99.99 %, single crystal Al₂O₃, sapphire wafer.
• Dimension: 100.00 mm +/- 0.1 mm, 4 inch
• Thickness: 650 +/- 15 um
• Surface Orientation: R plane (1-102) +/- 0.2 degree
• Primary Flat Length: 32 mm +/- 1 mm
• Primary Flat Orientation: A plane (11-20) +/- 0.2 degree
• Total Thickness Variation (TTV): ≤15 um (LTV≤5 um, 5*5)
• Bow: -15 to 0 um
• Thermal Expansion Coefficient: 6.66 x 10^-6 / °C parallel to C axis, 5 x 10^-6 /°C perpendicular to C axis
• Thermal Conductivity: 40 W/(m.K) at 20 ℃ 
• Dielectric Strength: 4.8 x 10⁵ V/cm
• Polishing: Double side polished (DSP) Ra <0.3 nm of both sides.
  
• Wafer Edge: R-type or standard flash
• Images for reference only