This requires a lot of equipment. The production process of solar cells is divided into silicon wafer inspection - surface texturing - diffusion bonding - dephosphorized silicon glass - plasma etching - anti-reflective coating - screen printing - rapid sintering, etc.
Peripheral facilities such as power supply, water supply, drainage, HVAC, vacuum and special steam are required. The water quality requirements for pure process water for fire protection and environmental protection equipment shall meet the EW-1 level technical standard of Chinese standard GB/T11446.1 -1997 on electronic quality water. For process cooling water, the particle size in the water quality should not be greater than 10 microns, and the water supply temperature should be 15-20°C. . About stock tanksNitrogen ge and oxygen storage tanks are also required. Specialty gases such as silane require a separate special gas room, silane combustion tower and wastewater treatment. . . . .