最近,上海第二冶炼厂(即901厂)首次研制成功φ155毫米大直径多晶硅棒,炉产量达到377公斤,接近目前国际上同类产品的先进水平。多晶硅是制备单晶硅的原料,它的质量、成本和大直径化直接影响到单晶硅的内 Recently, the No. 2 Smelter in Shanghai (ie 901 Factory) successfully developed φ155 mm large diameter polycrystalline silicon rods for the first time. The furnace output reached 377 kg, which is close to the advanced level of similar products in the world at present. Polysilicon is the raw material for the preparation of single crystal silicon, its quality, cost and large diameter directly affect the single crystal silicon