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

$ 82⁹⁰

Qty (pieces)	Price (per piece)
1 - 1	$ 82.90
2 - 9	$ 75.90
10 - 24	$ 69.90
25 - 25+	$ 65.90

Quantity

Sapphire Wafer, 4 inch, C-plane (0001), Prime Grade

Material: High Purity, >99.99%, single crystal Al₂O₃
Dimension: 100.0 mm +/- 0.1 mm
Thickness: 650 um +/- 25 um (SSP) , 600 um +/- 25 um (DSP)
Lattice Parameter: a=4.785 A, c=12.991 A
Density: 3.98 g/cm³
Orientation: C plane sapphire (0001) off M plane 0.2+/- 0.1 degree, R-plane (1-102), A-plane (11-20), M-plane (10-10) are available.
Primary flat orientation: A-plane +/- 0.2 degree
Primary flat length: 30.0 +/- 1 mm
Total Thickness Variation (TTV): <20 um
Bow: <20 um
Warp: <20 um
Dielectric Strength: 48,000 V/cm (1,200 V/mil)
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.