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SEMC 6 " R-Plane Sapphire Ingot Specification
Item
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Specification
|
Material |
High Purity,
Monocrystalline Al2O3 |
Diameter |
150.1 ± 0.1 mm
|
Acceptable Length* |
> 50 mm; <
140 mm |
Orientation
|
R-plane (1102) ± 0.1°
|
Primary Flat
Diameter |
144.38 ± 0.1 mm |
Primary Flat
Location |
R-plane (1102) ±
0.2° |
Secondary Flat Diameter
|
None |
Secondary Flat
Location |
None |
Surface Roughness |
Fine Ground |
Cylindricity |
< 0.05 mm |
Edge Chipping /
Crack |
< 3 mm;
summation of both ends |
Crystal-Defected
Region |
Marked |
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