Chongqing Silian Optoelectronic Science & Technology Co., Ltd.
Chongqing Silian Optoelectronic Science & Technology Co., Ltd.
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SSP Substrate Single Side Polished Wafer 2inch/4inch/6inch/8inch
Description
Chemically, sapphire is single crystal aluminum oxide (Al2O3), and is useful in a transmission range from 0.2 - 5.5µm.Sapphire , so making them ideal materials for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. And sapphire also is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance.
Specification
| Size | 2inch | 4inch | 6inch | 8inch |
| Material | > 99.9996% Single Crystal Al203 | |||
| Crystal Orientation | Customized | |||
| Diameter | 50.8+0.1mm | 100+0.1mm | 150+0.1mm | 200+0.1mm |
| Thickness | 430um; | 650um; 720um; | 1000um; 1300um; | 1600um; 2000um; |
| Flat Length | Customized Flat/Notch | |||
| TTV | <5um | <10um | <15um | <30um |
| LTV | <1.5um(5*5mm ) | <1.8um(5*5mm ) | <2um(10*10mm) | <5um(15*15mm) |
| BOW | -8~0um | -10~0um | -10~4um | -20~5um |
| WARP | < 10um | < 18um | < 30um | < 40um |
| Surface Finish | Ra<0.3nm | |||
| Back Surface | 0.8-1.2um | 0.8-1.2um | 0.7-1.0um | 0.7-1.0um |
| Wafer ID | Front Side/ Back Side | |||
| Cleanliness | Free Visible Contamination | |||
| Package | In Cassettes Of 25 | |||
| Other | Customized | |||
Process Flow