Maximize 
Sapphire windows
Stanford Advanced Material can provide sapphire windows, lenses, prisms and domes in various shapes, sizes and forms i.e. squares, plates, rectangles and discs are available.
Categories By Element
Categories By Function
Maximize Specification of sapphire windows
| Crystal | LED Grade Sapphire |
| Sapphire purity | >99.99% |
| Color | Transparent |
| Orientation | C plane tiled M axis 0.20°±0.05° |
| Diameter | 50.85±0.05mm |
| Thickness | 300±15 μm |
| Primary Flat Location | A-axis ± 0.1° |
| Flat Length | 16.0±0.5 mm |
| Front Side Roughness | Ra ≤0.2nm |
| Back Side Roughness | Ra ≤0.2nm |
| Edge Bevel | Curve; Rounded |
| TTV | ≤7.0µm (95%≤5um; 100%≤7um) |
| Tir | ≤7.0µm (95%≤5um; 100%≤7um) |
| BOW | BOW:-5～+4µm (90%≤0) |
| Warp | ≤10.0µm |
| Bubble & Color | None by visual inspection in intensive light |
| Ground Boundary | None by visual inspection in fluorescent light |
| Cleanliness | Free visible contamination |
| Packaging | Vacuum packed in one-piece box or Entegris cassettes of 25 in a class 100 clean room, under a nitrogen atmosphere |
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