GEMEI Science&Technology Solar Co.,Ltd is a China multicrystalline silicon wafer manufacturer and multicrystalline silicon wafers wholesale. The factory covers 112 acres and has over 1000 staff, including a group of experienced engineers and professional managers. The major products involve in silicon ingot、monocystalline silicon wafer, multicrystalline sillicon wafers, solar cells, solar panel and PV-grid generating system etc.
Muti Wafer
multicrystalline silicon wafer
Model
156 Muti Wafer
General Characteristics
 
Growth Method
 
Conductivity type
P
Dopant
Boron
Resistivity
0.5-3ohm*cm
Oxypen concentration
at<8*1017/cm3
Carbon Concentration
at<1<1018/cm3
Lifetime
≥2μs
Density
 
Microcrystal
<10/m2
Structural Characteristics
 
Corner between pseudosquare's side
 
Orientation
 
Dimension
156±0.5mm
Diameter
156±0.5mm
Thickness
200±20μm
Shape
Square
Mechanical Characteristics
 
TTV
<30μm
Bow
<50μm
Surface Finished
as wire-cut
Saw Mark
≤20μm
Chip defect
Edge chip ≤ 2 ea/w.Depth ≤ 0.5mm,Length≤ 0.5mm
Appearance
Clean,no visible stain,Crack and remarkable water mark

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