我司应意大利客户在国内采购多晶硅块(如图),多晶硅锭, 产品要求如下: Characteristics of Silicon Ingots - Solar Grade Item: Silicon Ingots Purity: 99,999 for 5N; 99,9999 for 6N ;99.99999% for 7N Dopant: P/Boron Oxygen content: <1 x 10/18 atoms/cm3 Carbon content: < 5 x 10/16 atoms/cm3 Resistivity: 0.5 – 3,0 Ohm/cm Lifetime: > 10 micro seconds Diameter: 156mm or 205mm Characteristics of Polysilicon Granules or Chunk Item: Poly Silicon Granules or Chunk Purity: 99,99 (4N) 99,999 (5N) 99,9999 (6N); 99,99999 7(N) Grade: Solar Grade Size: 1 to 2mm in diameter for Granules; 150mm for ChunksBoron content: less than (<) 1 ppba Phosphorus content less than (<) 0.6 ppba Carbon content less than(<) 0.5 ppma Oxygen content less than (<) 10 ppm Lifetime more than (>) 10 micro seconds 请生产厂家与我司联系,顺颂 商祺!
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