Welcome to the official website of JingYing PV-TECH Co.Ltd
Language: 中文 | English

JingYing PV-TECH Co.Ltd

products center

Silicon wafer

Silicon wafer

Silicon wafer is the carrier of solar cell, which is divided into monocrystalline silicon wafer and polycrystalline silicon wafer. The quality of wafer determines the cell’s’ efficiency directly.JY uses the world's most advanced slicing equipment, advanced diamond wire cutting technology to produce wafers, and also equipped with advanced testing machine to monitor wafer’s parameters,including surface conditions, lifetime,resistivity,conductive type and cracks.Our mission is to ensure the wafers are of the best quality.

Technical Parameters

Mono wafers

ProjectTechnical Parameters
Side length156.75±0.25mm156.75±0.25mm
diameter210±0.25mm210±0.25mm
thickness200±20µm180+20µm
oxygen concentration≤0.8*1018atoms/cm³
carbon concentration≤5*1016atoms/cm³
Conductive model / dopantP/Borom
Verticality90°±0.3°
Minority life> 3µs (bare measurement),> 15µs (after passivation)
Resistivity1-3Ω·cm
TTV≤30µm
Growth methodCZ Straight Pull
Total thickness difference≤30µm
saw mark≤15µm
Arc width deviation12±0.5mm

Multi wafers in DW slicing

ProjectTechnical Parameters
Side length156.75±0.25mm157±0.25mm157.75±0.25mm
diameter220.2±0.5mm220.5±1mm221.7±1mm
thickness200±20µm
oxygen concentration≤5*1017atoms/cm³
carbon concentration≤7*1017atoms/cm³
Conductive model / dopantP/Borom
Verticality90°±0.25°
Minority life≥1µs (naked measurement)
Resistivity1-3Ω·cm
TTV≤30µm
Growth methodDSS
Total thickness difference≤30µm
saw mark≤15µm
hypotenuse0.5-2mm