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Product Name: 156*156 Poly silicon wafer
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Product Model:
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Product Category: Multicrystalline silicon wafers
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Product Description:
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Material Property
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Multi156*156
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Conductance Type
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P Type
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Wafer Diameter
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219±0.4mm
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Resistivity
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0.5-2 cm
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Dimensions
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156±0.4mm
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Oxygen Concentration
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≤x10 E18Atoms/ cm 3
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Wafer Thickness
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190±10um
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Carbon Concentration
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≤x10 E17Atoms/ cm 3
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Dopant
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B
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Life Time
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≥2
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Total Thickness Variety
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≤20um
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Camber
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≤20um
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Sawmark
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≤15um
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Grain Size
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≤10pcs/c
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Surface Quality
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No crack ,no obrious,saw mark ,without obrious tactility,nopit,no V-type gap ,no hole,
No glue left, surface cleande,no abnormal spot,no stain
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Gap
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Width*depth of gap < 1*0.3mm2,no V-type-gap,with total quantity≤1
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Tiny Luminance Edge
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length≤1/2 of wafer dimension ,wide≤1/3 of wafer thickness
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Edge defect
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Edge defect width≤0.4mm ,extension less than 0.8mm with total quantity≤2
distance≤30mm
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Welcome to inquiry from us freely.
