Double Side Polish Sapphire Wafer C-Plane Al<sub>2</sub>O<sub>3 </sub>Single Crystal, 25x25x1mm - MSE Supplies LLC

MSE PRO Sapphire Crystal Substrate, 25x25x1mm, C-plane (0001), Double Side Polish, Prime Grade

$ 39⁵⁰

Sapphire Crystal Substrate, 25x25x1mm, C-plane (0001), Double Side Polish, Prime Grade

SKU# WA0432

Customized sapphire wafers and windows are available upon request

Material: High Purity >99.99%, single crystal Al₂O₃
Dimension: 25x25x1mm
Lattice Parameter: a=4.785 Å, c=12.991 Å
Density: 3.98 g/cm³
Orientation: C plane (0001)
Total Thickness Variation (TTV): <10 um
Bow: <10 um
Warp: <10 um
Thermal Expansion Coefficient: 6.66 x 10^-⁶ / °C parallel to C axis, 5 x 10^-⁶ /°C perpendicular to C axis
Dielectric Strength: 4.8 x 10⁵ V/cm
Dielectric Constant: 11.5 (1 MHz) along C axis, 9.3 (1 MHz) perpendicular to C axis
Dielectric Loss Tangent (a.k.a. dissipation factor): less than 1 x 10^-⁴
Thermal Conductivity: 40 W/(m.K) at 20℃
Polishing: Double side polished (DSP) Ra < 0.5 nm (by AFM).

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