2inch 3inch 0.43mm single side polished SSP 0.4mm DSP thickness sapphire Al2O3 crystals substrate wafers for epi-ready,
other size as like 2inch ,3inch ,4inch ,5inch ,6inch ,8inch ,10inch and customized size sapphire wafer & optical lens also can be provide.
Sapphire Substrate Features
Sapphire Substrate Application
Common Size For Wafer & Optical Lens
Item | 2″ 50.8mm 3inch 76.2mm |
Crystal | LED Grade Sapphire |
Sapphire Purity | ≥99.9996% |
Color | Transparent |
Orientation | C plane tiled M axis 0.20°±0.1° |
Diameter | 50.8±0.1mm 76.2±0.1mm |
Thickness | 430±10um or 400±10um |
Primary Flat location | A-axis±0.2° |
Flat length | 16.0±1mm 22±1mm |
Front Side Surface | Mirror polished , EPI Ready |
Surface Roughness | Ra<3A |
Back Side Roughness | Fine ground, Ra=1.0±0.2um ( or doule side polised 2sp)
|
TTV | ≤10um |
LTV | ≤2.5um(8mm*8mm) |
BOW | ≤- 15um |
Warp | ≤15um |
Product Name | Sapphire window |
Material | Sapphire crystal |
Color | transparent |
Diameter Tolerance | +/-0.02mm |
Surface quality | SD 20/10; 40/20;60/40;80/50 |
Clear Aperture | >90% of Diameter |
Chamfer | 0.25mm*45 degree |
Application | For optical use |
Sample products in details
Inspection Date