The 8 inch fused silica caps are precision-made components designed to seal and protect quartz tubes, reactors, and wafer boats during high-temperature semiconductor and photovoltaic processing. Crafted from ultra-pure fused silica, these caps offer exceptional thermal shock resistance, chemical inertness, and durability under repeated thermal cycling.

Their tight sealing capability prevents contamination and gas leakage, ensuring a stable and clean processing environment essential for oxidation, diffusion, LPCVD, and annealing processes. The caps’ robust construction helps maintain process consistency and extends equipment lifespan in demanding manufacturing settings.