In order to support our Solar project, we need follow products, and purchase in the world.
Electronic grade pot scrap
type :P and N type in mixture
resistity:>1 ohmcm
Min Size :50mm
Electronic grade top and tail
Type :P and N type
Resistivity:>1 ohmcm
dummy wafer = discarded /eliminated electronic grade CZ mono wafer
type: p type
resistivity:>0.5 ohmcm
thinkness: about 500um or thicker
orientation:<100>
surface: any surface, any flat. Having the technology also ok.
Silicon block
purity = 6 N,
R > 0.5
solar grade cz ingot
type:p type
risistivity:0.5-3 ohmcm
diameter: 150mm/135mm
orientation: ( 100)
minority carrier lifetime:>10msec
dislocation:<10cm-2
oxygen:<1*1018 at/cm3
Carbon: <0.5*10 17 at/cm3
Length of ingot: 200-400 mm/150-200mm
|
