| Topco Technologies Corp. |
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Item Number:
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Solar Wafer & Soalr Cell |
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Features:
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| Mono
wafer |
Mult
wafer |
Mono
cell |
Mult
cell |
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Specification:
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| Item |
Description |
| Thickness |
200¡Ó30μm |
| Edge
Angle |
90¡Ó0.5¢X |
| TTV |
≦50μm
(ASTM F657) |
| Edge
Defect |
Depth<0.5mm,
Length<1.5mm (Max. 2 pieces) |
| Saw
Marks |
Depth<15μm,
less than 3 places (by contact probe method) |
| Wafer
Surface |
As-cut,
cleaned |
| Conductivity
Type |
P-type (Boron Doped) |
| Carbon
Concentration |
≦
9.5 x 10
3 at/cm3 |
| Oxygen
Concentration |
≦
2.0 x 1018
at/cm3 |
| Resistivity |
0.5-6.0
Ω-cm (ASTM F43-99) |
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