Does led substrate red and yellow light chip production have pollution

Generally speaking, the semiconductor industry is the possibility of pollution emissions, LED production is no exception. Chip cleaning photolithography and corrosion will be a large number of emissions of organic waste liquid and inorganic waste liquid, diffusion process will be emitted to the atmosphere part of the harmful and toxic waste gas. But these wastes can be recycled. As long as the production line is designed scientifically and reasonably, the waste liquid centralized recycling, waste gas dilution emissions, can minimize the pollution of the environment.