Clean room, what are the main role? Clean room, the most important function is to clean the contact control products (wafers), the atmospheric temperature and humidity, so that products can be in a good environment space in the production, manufacture, this space we call purification plant.
According to international practice, Clean purification level is mainly based on telephone numbers per cubic meter of air particles larger than diameter portion standard offer. This is called dust instead of 100% dust-free, but to control a very small amount of units. This standard is in line with standard compared to our common dust particles of dust is negligible small, but in the optical structure, even if it is a little bit of dust will have on the production of optical structures great negative impact, the inevitable dust purification plant Claim.
Number of dust particle size less than 0.3 microns each control less than 3500 cubic meters, is dust-proof standard international level. Dust requirements apply to the current standard higher than A-level chip-scale production and processing, and such a high standard is mainly used for some higher-ranked chip production. Strictly control the number of less than 1000 per cubic meter, which is commonly referred to as 1K5μm and less dust in the industry.