Hlau silicon "(tseem hu ua industrial silicon) yog lub npe lag luam uas tshwm sim nyob rau hauv nruab nrab -1960s. Nws qhov tshwm sim yog cuam tshuam nrog kev nce ntawm kev lag luam semiconductor. Kev coj ua thoob ntiaj teb yog faib cov lag luam silicon rau hauv cov hlau silicon thiab Cov hlau silicon yog cov khoom tsim los ntawm smelting quartz thiab coke hauv lub cub hluav taws xob, cov ntsiab lus tseem ceeb ntawm silicon cov ntsiab lus yog kwv yees li 98% (99.99% Si cov ntsiab lus tseem suav nrog cov hlau silicon), thiab lwm yam impurities yog hlau, txhuas. Raws li kev txheeb cais, xyoo 1985, lub ntiaj teb tau siv txog 500,000 tons ntawm cov hlau silicon, ntawm 60% yog siv rau aluminium alloys, txog 3%. yog siv rau semiconductors, thiab tus so yog siv rau steel smelting thiab precision ceramics.
