Sapphire Ingots
Whilst we supply fully fabricated sapphire wafers to exacting high specifications, we also recognise the semi-finished and ingot markets. For these markets we present ingots in the three most popular diameters of 50.9mm (2"), 100.1mm (4") and 150mm (6") with the following specifications:
| A-plane: | ±0.2° |
| Orientation: | (C-A) ±0.1° / (C-M) ±0.1° |
| Diameter: | 50.9mm ±0.5mm, 100.1mm ±0.5mm, 150.00mm ±0.5mm |
| Primary flat length: | 16.0 ±0.5mm, 30.0 ±0.5mm and 47.5 ±0.5mm |
| Length: | 40mm to 180mm |
| Exclusion area: | <10% |
| Circularity: | <0.02mm |
| Surface roughness: | fine ground |
| Purity: | 99.999% |
| Edge chips: | None in effective length |
| Visual inspection: | No defects in effective length as viewed under high intensity diffused light. |