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3 inch Sapphire Wafer C-Plane Single or Double Side Polish Al2O3 Single Crystal

  • $ 7990

Qty (pieces) Price (per piece)
1 - 1 $ 79.90
2 - 9 $ 67.50
10 - 24 $ 59.50
25 - 25+ $ 54.90

    Sapphire Wafer, 3 inch, C-plane (0001), Prime Grade, Single or Double Side Polish Al2O3 Single Crystal

    • Material: High Purity >99.99% single crystal Al2O3
    • Diameter: 76.2 mm +/- 0.1 mm
    • Thickness: 650 um +/- 25 um (SSP) , 600 um or 430 um +/- 25 um (DSP)
    • Lattice Parameters: a=4.785 A, c=12.991 A
    • Density: 3.98 g/cm3
    • Orientation: C plane (0001) +/- 0.3 degree, R-plane (1-102), A-plane (11-20), M-plane (10-10) are available.
    • Primary flat orientation: A-plane +/- 0.3 degree
    • Primary flat length: 22.0 mm +/- 1 mm
    • Total Thickness Variation (TTV): <15 um
    • Bow: <15 um
    • Warp: <15 um
    • 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: 42W/(m.K) at 20℃ 
    • Polishing: single side polished (SSP) front side epi-ready surface Ra < 0.5 nm (AFM), back side fine-ground Ra = 0.8 ~ 1.2 um, or double side polished (DSP) both front and back sides epi-ready surface Ra < 0.5 nm (AFM)
    • Package: packaged in a class 100 clean room environment, in cassettes of 25 pcs or single wafer containers, under nitrogen atmosphere.