Application of air purification system engineering
Air purification engineering has a very clear effect on improving product quality. According to foreign literature reports, for semiconductor products manufactured in 10000 and L00 clean rooms, transistor coating diffusion is carried out in L00 clean rooms and external atmospheric environment through voltage resistance test, and the performance distribution of products in 100 clean rooms is concentrated. And the peak occurs at higher performance. The performance of the products in the atmospheric environment is extremely scattered and unstable. It can be seen that ① there is no air purification, product yield has a great difference, ② in order to improve product quality, not only the production of products need to be clean environment, and the production of key raw materials, ingredients should also be carried out in a clean environment.
However, and the treatment of anything can not be absolute, the role of air clean technology can not be absolute, can not be completely attributed to it to improve the quality of products. According to foreign material analysis, for example, for the semiconductor component department, the role of air clean technology in improving product quality is about 20% in the whole production, and the role of production process automation accounts for 60%, and other factors account for 20%. Of course, after the production process has been solved, air purification is the main contradiction, such as very large scale integrated circuit, no clean environment, it is almost impossible to produce.
For the need of air purification industries and sectors are: electronics, precision machinery, aerospace, chemical industry, printing industry, atomic energy industry, food industry, pharmaceutical industry, hospital, animal experiments, injection molding industry, etc.