buy solar and ic grade silicon wafer,ingot,top-and-tails

RFQ Details

xxxxx silicon wafer,:both 6 inch and 8 inch, p type, resistivity is around 0.5-3(3-6), thickness is around 200-240 or 250-290, surfaceshould be clean, free from stains , no cracks
xxxxx siliaon wafer:both 6 inch and 8 inch, p type, resistivity is around 0.5-3(3-6), thickness is around 200-240 or 250-290, surfaceshould be clean, free from stains , no cracks
3.single crystal silicon ingot:both 6 inch and 8 inch, p type, resistivity is around 0.5-6,
4.semi grade srape silicon chip:chips should be in ark , the thickness of the chip is not less than 400 um, p type,resistivity is larger than 0.5
5.polysilicon in small pieces:n type resistivity is higher than 50ohmcm,size=4mm,oxidized layers and infusible materials should not be found, best to be clean
xxxxx poly:n type,resistivity is higher than 100ohmcm
p type,resistivity is higher than 1000ohmcm
chunk size is larger than 30mm
oxidized layers and infusible materials should not be found, best to be clean
xxxxx grade material:wafers and broken wafers,resistivity is higher than o.5
xxxxx grade CZ silicon top-and-tails:resistivity is higher than o.5,chunk size is larger than 30mm, chip thickness is larger than 0.5mm, no air holes and moreover on infusible material should be found