Really Superior purity silicon for semiconductors is attained utilizing the Siemens course of action; the silicon is reacted to make trichlorosilane, and that is 1st purified by distillation, then reacted with purified hydrogen on large purity silicon rods at 1150 oC to generate high purity, polycrystalline silicon with hydrochloric acid https://glasslinepipe04704.articlesblogger.com/58709029/sic-ceramic-can-be-fun-for-anyone