Location: USA, EXPORT TO CHINA ONLY GEORGIA

Solar grade polysilicon.
A. Solar grade polysilicon Technical requirements: 1. Si Purity: 99.9999% 2. Boron<0.20 ppba 3. Donor<0.90 ppba 4. Carbon<1.00ppba 5. Total bulk metals<30.00ppba 6. Total surface metals<30.00ppba 7. Size:25mm¡ª250mm 8. Poly Type:P-type 9. Resistivity>0.50ohmcm B. Semi grade scrap silicon chip Technical requirements: 1. Semi grade scrap silicon chips 2. Chips should be in ark 3. The thickness of the chip is not less than 400 um 4. Type:P-type 5. Resistivity>0.50ohmcm C. Polysilicon in small pieces Technical requirements: 1.N-type ,Resistivity>50ohmcm,Carbon<5*1016 /cm3 ,Oxygen<5*1017/cm3 2.Size=4mm 3.Oxidized layers and infusible materials should not be found, best to be clean D. CZ POLY Technical requirements: 1. Donor:N-type,Resistivity>100ohmcm Boron:P-type,Resistivity>1000ohmcm Life time of a few carriors >100us Carbon<1016 /cm3 Oxygen<1017/cm3 2. Chunk size>30mm