Corning® 7980 is a high-purity synthetic fused silica material used for UV optical, semiconductor, laser and aerospace-related precision components. With excellent UV transmission from 180–2500 nm, low thermal expansion of 0.52 × 10⁻⁶ /°C, high optical homogeneity up to Δn ≤ 1 × 10⁻⁶ and strong electrical insulation properties, it is suitable for parts that require stable optical performance, low thermal distortion and reliable dimensional control.
We process Corning® 7980 fused silica according to drawings, thickness, surface quality and application requirements. Typical products include photolithography windows, diffusion tubes, wafer carriers, UV optical elements, laser windows, 193 nm / 248 nm excimer laser optics and high-stability optical substrates.
