Our abundance experience at growing and mass production for optical grade quartz . We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking.
Our abundance experience at growing and mass production for optical grade quartz . We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking.
Our R&D is active at developing and researching from big material to process 6” optical grade quartz wafer,Optical Grade Quartz Wafer,Single Crystal,Quartz,Glass Wafers.
| Material | Quartz Crystal | |
| Cutting Angle | X/Y/Z-cut etc | |
| Diameter/size | 1”(25.4mm)-4”(100mm) | |
| Tol(±) | <0.20 mm | |
| Thickness | 0.05mm or more | |
| LTV (5mmx5mm) | <1µm | |
| TTV | <3µm | |
| Bow | -30<bow<30 | |
| Warp | <40µm | |
| Surface Type | Single Side Polished /Double Sides Polished | |
| Polished side Ra | <0.5nm | |
| Back Side Criteria | General is 0.2-0.5µm or as customized | |
| Scratch/Dig | Bette than 40/20 | |
| Edge Criteria | R=0.2mm or Bullnose | |
| Material Property | ECD | Better than grade 4 |
| Inclusion | Better than grade I | |
| Q-Value | Better than grade C | |
| Wafer Surface Criteria | Particles ￠>0.3 µm | <= 30 |
| Scratch , Chipping | None | |
| Defect | No edge cracks, scratches, saw marks, stains | |
| Packaging | Qty/Wafer box | 25pcs per box |
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