What purity level is required for semiconductor applications?

Semiconductor-grade fused quartz typically requires ≥99.995% SiO₂, with total metals <20 ppm, OH <10 ppm, and alkali metals <5 ppm to minimize contamination in wafer processing. FGQuartz’s material meets or exceeds these specs for quartz boats, tubes, tanks, and furnace liners used in diffusion, oxidation, and annealing processes.