摘要:
Foamed polycrystalline silicon having bubbles therein and an apparent density of 2.20 g/cm 3 or less. This silicon generates an extremely small amount of fine grains by crushing and can be easily crushed. There is also provided a method of producing foamed polycrystalline silicon. There is further provided a polycrystalline silicon production apparatus in which the deposition and melting of silicon are carried out on the inner surface of a cylindrical vessel, a chlorosilane feed pipe is inserted into the cylindrical vessel to a silicon molten liquid, and seal gas is supplied into a space between the cylindrical vessel and the chlorosilane feed pipe.
摘要翻译:具有气泡的发泡多晶硅,表观密度为2.20g / cm 3以下。 该硅通过粉碎产生极少量的细晶粒,并且可以容易地粉碎。 还提供了一种生产泡沫多晶硅的方法。 还提供了一种多晶硅制造装置,其中在圆柱形容器的内表面上进行硅的沉积和熔融,将氯硅烷进料管插入到硅熔融液体的圆筒形容器中,并且供给密封气体 进入圆筒容器和氯硅烷进料管之间的空间。