This is no worse than before. All electronic grade silicon is already produced starting from silane or trichlorosilane, and both are about equally hazardous to

This is no worse than before. All electronic grade silicon is already produced starting from silane or trichlorosilane, and both are about equally hazardous to handle. See this overview of producing purified silicon: "Chemistry of the Main Group Elements - 7.10: Semiconductor Grade Silicon" https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Chemistry_of_the_Main_Group_Elements_%28Barron%29/07%3A_Group_14/7.10%3A_Semiconductor_Grade_Silicon https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/...