6 inch Sapphire Wafer C-Plane Single or Double Side Polish Al2O3 Single Crystal
Features for 6 in Sapphire Wafer C-Plane Single or Double Side Polish, Prime Grade
Customized sapphire wafers and windows are available upon request
- Product SKU#: WA0411 for single side polished, WA0410 for double side polished
- Material: High purity single crystal Al2O3, sapphire wafer.
- Dimension: 150 mm +/- 0.05 mm, 6 inch
- Thickness: 1300 +/- 25 um
- Orientation: C plane (0001) off M (1-100) plane 0.2 +/- 0.05 degree
- Primary flat orientation: A plane +/- 1 degree
- Primary flat length: 47.5 mm +/- 1 mm
- Total Thickness Variation (TTV): <20 um
- Bow: <25 um
- Warp: <25 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: single side polished (SSP) or double side polished (DSP) Ra < 0.5 nm (by AFM). The reverse side of SSP wafer was fine ground to Ra = 0.8 - 1.2 um.
- Transmittance: 88% +/-1 % @460 nm
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