As we all know, our mobile phone chips have been "stuck neck" by foreign countries, and we have also been innovating in technology research and development to break through the blockade. The production conditions of mobile phone chips are very strict, today we will reveal the production workshop of mobile phone chips - 100,000 dust-free workshop. 100,000-level dust-free workshop refers to the elimination of particles, toxic and harmful air, bacterial sources and other pollutants in the air within a certain spatial range, and the temperature, cleanliness, air velocity and airflow distribution, indoor pressure, noise vibration and lighting, static electricity and so on in the dust-free room are controlled within a certain range of needs. Maintain the performance characteristics of temperature, humidity, cleanliness and pressure that were originally set in the room for a long time.
The product quality produced by the 100,000-level dust-free workshop is very high, so what is this standard?
Dust particles are a good carrier of bacteria and viruses, so the primary task of the 100,000-level purification workshop project is "dust removal".
1. In the 100,000-level purification workshop, the maximum allowable number of dust particles ≥ the number of particles of 0.5 microns is not allowed to exceed 3.5 million;
The number of particles in 2.≥5 microns cannot exceed 20,000.
1. Microorganisms, like dust particles, also have a maximum allowable number. The number of planktonic bacteria is required not to exceed 500/m³;
2. The number of sedimentation bacteria does not exceed 10 per Petri dish.
Here are 2 cases according to the cleanliness level:
1. In the same cleanliness class of the clean room, the pressure difference needs to be consistent;
2. Different clean rooms of different cleanliness grades, the pressure difference between adjacent clean rooms should be ≥5Pa, and the pressure difference between the clean room and the non-clean room should be ≥ 10Pa (here is mainly to ensure that the air flows from the clean area to the non-clean area, to avoid air pollution caused by backfilling).
The number of air changes, temperature, pressure difference, relative humidity, noise and fresh air replenishment in the 100,000-level purification workshop project each has its own strict requirements of the value:
1. The number of air changes: 10-15 times / hour;
2. Relative humidity: 45-65% (RH);
3. Noise ≤65dB(A);
4. Pressure difference: the main workshop is relatively adjacent to the room ≥ 5pa;
5. Temperature: 16 °C ± 2 °C in winter> less than 26 °C in summer± 2 °C;
6. Fresh air replenishment: 20%-30% of the total air supply volume; illuminance greater than or equal to 300Lux.
In the workshop, different places need to use different materials to ensure that they can reach the standard of 100,000 purification workshops.
1. Wall and roof: made of 50mm thick sandwich color steel plate and special alumina profile for purification;
2. Doors and windows: the use of purified closed doors and aluminum alloy glass fixed windows;
3. Ground: epoxy self-leveling or high-grade wear-resistant plastic clean floor;
4. Purification ventilation duct: the use of galvanized thin steel plate and "PEF" flame retardant type insulation board for insulation.
Committed to the construction of purification projects and the production of high-quality purification equipment, mainly involving electronic dust-free workshop, GMP workshop, food sterile workshop, food and medicine packaging workshop, medical mask workshop, aseptic laboratory, lithium battery workshop, air conditioning box, clean shed, etc. Welcome friends in need to consult and communicate at any time.