The 8 inch fused quartz caps are engineered components designed to securely seal quartz tubes, reactors, and wafer boats during high-temperature semiconductor and photovoltaic processing. Made from ultra-high purity fused quartz, these caps provide excellent thermal shock resistance, chemical stability, and mechanical strength.

They ensure a tight, contamination-free seal that prevents gas leakage and maintains the integrity of the process environment during oxidation, diffusion, LPCVD, and annealing operations. The caps’ durability allows for repeated thermal cycling without deformation, supporting consistent process results and extended equipment life.