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Solar Silicon Wafers

Targray offers a full range of monocrystalline and multicrystalline solar wafers for solar cell manufacturing. Through our extensive global partner network, we have access to a reliable supply of high quality solar wafers to support both your short and long term product requirements. Our high quality solar wafers can be manufactured to your exact specifications.

We offer silicon solar wafers in the following sizes:.

  • Mono 125 x 125 mm
  • Mono 156 x 156 mm
  • Multi 156 x 156 mm

Our goal is to help you reduce your overall Cost/Wt. This begins with sourcing the highest quality solar wafers for your solar cell fabrication and processing. Superior solar wafers will yield more efficient pv solar cells.

Below are sample specifications. Custom specifications are available.

Multi Wafer Specification

Conductivity Type p
Shape Square 156 x 156 ± 0.5mm
Resistivity 0.5 - 3 Ω-cm
Lifetime ≥2 μs
Oxygen Concentration ≤ 1 x 1018 atoms/cm3
Carbon Concentration ≤ 5 x 1016 atoms/cm3
Thickness 200 μm ± 20 μm
TTV ≤ 30 μm
BOW ≤ 50 μm
Saw Marks ≤ 15 μm
Chips L ≤ 1 mm, D ≤ 1 mm, Max. 2 places

Mono Wafer Specification

Crystal Structure Mono
Crystal Growth Tech. Czochralski
Crystal Orientation <100>
Conductance Type P
Dopant Boron
Resistivity 0.5 - 3 Ω - cm
3 - 6
Minority Carrier Lifetime ≥10 μsec
Carbon Concentration ≤1 x 1017 atoms/cm3
Oxygen Concentration ≤1 x 1018 atoms/cm3
Wafer Thickness 200 ± 20 μm
Wafer Length 125 156 mm
Diagonal Length 150 or 165 195, 200 or FSQ
Square Sides Angle 90o ± 0.5o
TTV ≤ 30 μm
BOW ≤ 50 μm
Saw Marks ≤ 15 μm

We guarantee that the material will meet the quoted specifications. Contact us today for all your monocrystalline and multicrystalline silicon wafer needs.