We are proud of offering silicon wafer with high quality and attractive price under quality control in depth so that you are assured of good value added products from us.
Our main product series include: IC level and solar grade silicon ingot and wafers.
NEXTECK provides semiconductor wafer measured from four to six inches.
Specifications are as follows:
| Items | General Specification of Semiconductor Wafer | ||||||||
| 4 inch | 5 inch | 6 inch | |||||||
| Resistivity(Ω/cm) | P-Type doped: Boron, 0.001-0.01, 0.01-0.5, >0.5 P++, P+, P- | ||||||||
| N-Type doped: As, Phos, Sb, 0.001-1, 1-150 | |||||||||
| Diameter tolerance(mm) | ±0.2 | ±0.2 | ±0.2 | ||||||
| Orientation | (100), (111) | (100), (110), (111) | (100), (110), (111) | ||||||
| Orientation tolerance | ±0.15° | ±0.15° | ±0.15° | ||||||
| Edge Profile | T/R | T/R | T/R | ||||||
| Edge Condition | 11/22 Ground | 11/22 Ground | 11/22 Ground/Polished | ||||||
| Thickness(μm) | 300-650 | 400-650 | 550-750 | ||||||
| Thickness tolerance(μm) | ±15 | ±15 | ±15 | ||||||
| Backside Treatment | Etch | Poly | SiO2 | Etch | Poly | SiO2 | Etch | Poly | SiO2 |
| Bow(μm) | ±25 | ±25(Before CVD) | ±25 | ±25(Before CVD) | ±25 | ±25(Before CVD) | |||
| Warp(μm) | ≦25 | ≦25(Before CVD) | ≦25 | ≦25(Before CVD) | ≦25 | ≦25(Before CVD) | |||
| Options | Laser marking, Poly-back, SiO2 seal, Back side damage | ||||||||
Nexteck offers different kind of solar grade ingots and wafers as customer’s requirements.
Specifications of our 156mm Mono and Multi silicon wafers are for your reference.
| Category | Monosilicon Wafer | Polycrystalline Silicon |
| 156*156mm ( Mono wafer ) | 156*156mm ( multi wafer ) | |
| Growing method | CZ | |
| Type | P | P |
| Dopant | Boron | Boron |
| Crystal Orientation | <100>+/-3 deg | |
| Carbon content(atom/cm3) | < 5*1016 | < 5*1017 |
| Oxygen content(atom/cm3) | < 1.1*1018 | < 1*1018 |
| Etch Pit Defects (/cm3) | <= 3000 | |
| Resistivity (ohm-cm) | 0.5~3/3~6 | 0.5~3 |
| Minorirty CarrierLifetime (μs) | >10 | >=2 |
| Dimension (mm) | 156+/-0.5 | 156+/-0.5 |
| Thickness (μm) | 200+/-20 | 200+/-20 |
| TTV (μm) | <=30 | <=30 |
| Bow/Warp (μm) | <100 | <50 / <100 |
| Surface Saw DamageDepth (um) | <=15 | <=20 |
| Edge (Chip) | Depth≦0.5mm， Vertical≦1.0mm, Defect≦2 | Depth≦0.5mm， Length≦3.0mm, Defect≦2 |
NEXTECK is committed to solar photovoltaic supply for many years. We have established long-term cooperative relations with many well-known solar PV manufacturers. Our products are exported to many countries in Europe and Southeast Asia . NEXTECK provides safe and convenient PV connectors which are certified by German TUV .
