Soda mask using soda glass as the substrate material, soda glass thermal expansion rate is relatively higher than quartz glass, flatness and wear resistance is relatively weak than quartz glass, the cost is relatively low, usually used in low precision mask plate. Soda masks are mainly used in fields with low accuracy requirements, including mid - and low-end semiconductor manufacturing, semiconductor packaging, optical devices, mid - and low-end display panels, touch screens and circuit board manufacturing.