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Looking for Silicon Wafers

Date Posted :	2008-07-10
Valid until :	2008-07-17

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Dear Sir or Madam,

I am in China right now and looking for Silicon Wafers . Here are the details for your kind reference.

Below find Specification of Silicon Wafers:

1. Specification of  the 156 mm wafers:
Wafers 156 mm Solar grade:
Grade : A
Quality: specs below
Quantity: 50,000pcs p/month
- Multi crystalline wafer
- P type (Boron)
- Dimension : 156 mm x 156 mm(+/- 1 mm)
- Thickness : 200 um (+/-20 um)
- Cross : 219 (＋/- 0.5 um)
- Resistivity : 0.5 ohm cm - 3 ohm cm
- Life time : >=2 micro sec
- Oxygen content : <1.0x10~18
- Carbon content : <5.0x10~16
- TTV: <=30um
- Bow, Warp : <=50um
- Edge defects : <=1
- Depth of saw marks: <20um
- Surface demands: No
- V Chip: Defect free
- Surface: As cut, cleaned no pits, no visible stain, no remarkable water marks
_______________________________________________________________________

2. Specification Si Wafer MC-125x125

1)      Material Silicon (multi crystalline) -
2)      Type P type-Boron doped -
3)      Resistivity 0,5 - 2,5 Ohm*cm
4)      Oxygen Content </= 8,0 x 1017 atoms/cm3
5)      Carbon Content </= 1,0 x 1018 atoms/cm3
6)      Lifetime >/= 1,5 µS 1)
7)      Size 125,0 x 125,0 +/- 1,0 mm
8)      Angle between sides not specified
9)      Centre Thickness not specified
10)    TTV not specified
11)    Chamfer not specified
12)    Chamfer angle not specified
13)    Saw mark depth not specified
14)    Cracks/holes no -
15)    Edge defects/chips not specified
16)    Surface conditions as cut -
        measurement method: μ-PCD on block

Please revert back immediately or call me on 15815537175 or contact my manager Miss Wendy on 13425193521

Thank you

Mohsin

Related Keywords: Silicon Wafer

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