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What benefits can clean room decoration bring to the electronics industry?

by:PHARMA     2022-10-30
In the past ten years, the development trend of scientific and technological progress has been particularly rapid, and the requirements for high-precision management and miniaturization of commodities are more urgent. The overall planning and development trend of cleaning and purification professional skills have also clearly put forward higher regulations. It also drives the development of clean room decoration technology, and puts forward higher requirements for clean room design. The design of clean room in the electronics manufacturing industry is a comprehensive technology. Only by fully understanding the clean room decoration in the electronics manufacturing industry Design characteristics and reasonable design can reduce the defective rate of products in the electronics manufacturing industry and improve production efficiency. Purification and dust-free workshops are widely used in semiconductor materials, high-precision manufacturing, lcd screen manufacturing, electronic optics manufacturing, base steel manufacturing and other fields. The on-the-spot plan for the purification pharmaceutical cleanroom of electronic device manufacturing work is a collection of professional skills. Only by fully understanding the characteristics of the on-site plan for the clean-up of electronic device manufacturing work and making the plan effective can the qualified rate of goods produced by the electronic device manufacturing industry be reduced. , so that the development of manufacturing power engineering. The characteristics of the dust-free workshop in the electronics manufacturing industry: The cleanliness level is required to be high, the air volume, temperature, humidity, pressure difference, and pharma machinery exhaust air are controlled on demand, and the illuminance and clean room cross-section wind speed are controlled according to design or specifications. In addition, this type of clean room The requirements for static electricity are extremely strict. Among them, the requirements for humidity are particularly high. Because it is easy to generate static electricity in an overly dry workshop, the CMOS integration is damaged. Generally speaking, the temperature of the electronic workshop should be controlled at about 22°C, and the relative humidity should be controlled between 50-60% (special clean workshops have relevant temperature and humidity regulations). At this time, it can effectively eliminate static electricity and make people feel comfortable. Chip production workshops, integrated circuit clean rooms and disk manufacturing workshops are important components of clean rooms in the electronics manufacturing industry. Due to the extremely strict requirements on indoor air environment and quality during the manufacturing and production of electronic products, the main purpose is to control particles and Floating dust is the main object, and strict regulations are also made on the temperature and humidity of the environment, the amount of fresh air, and noise. 1. The noise level (empty state) in the 10,000-class clean room of an electronic manufacturing plant: should not be greater than 65dB(A). 2. The full coverage ratio of the vertical flow clean room in the clean room of the electronic manufacturing factory should not be less than 60%, and the horizontal one-way flow clean room should not be less than 40%, otherwise it will be a local one-way flow. 3. The static pressure difference between the clean room and the outdoor of the electronic manufacturing plant should not be less than 10Pa, and the static pressure difference between the clean area and the non-clean area with different air cleanliness should not be less than 5Pa. 4. The fresh air volume in the 10,000-class clean room in the electronics manufacturing industry should take the maximum value of the following two items: (1) The sum of the fresh air volume required to compensate the indoor exhaust air volume and maintain the indoor positive pressure value. (2) Ensure that the amount of fresh air per person per hour in the clean room is not less than 40m3. (3) The heater of the clean room purification air conditioning system in the electronics manufacturing industry should be equipped with fresh air and over-temperature power-off protection. If point humidification is used, water-free protection should be installed. In cold areas, the fresh air system should be equipped with anti-freeze protection measures. The air supply volume of the clean room should be the maximum value of the following three items: the air supply volume to ensure the air cleanliness level of the clean room of the electronic manufacturing plant; the air supply volume of the clean room of the electronic factory is determined according to the heat and humidity load calculation; The amount of fresh air supplied in the clean room of the manufacturing plant. The clean room level of the thousand-level dust-free workshop for the production and manufacture of electronic devices has high regulations. The cross-sectional wind force is controlled according to the plan or standard, and other such clean rooms have extremely high requirements for electrostatic induction, especially for environmental humidity. Too much dryness on the spot is very likely to cause electrostatic induction and damage to the CMOS integrator. Generally speaking, the temperature of the electronic device processing plant must be controlled at around 22, and the air humidity must be controlled between 50-60% (especially the cleaning processing plant has temperature and humidity requirements). Under such conditions, it can reasonably remove electricity, and it can also make people feel comfortable. The chip processing site, the integrated circuit chip clean room and the optical disc production site are the key components of the clean room for electronic production positions. In the process of manufacturing and production of electronic equipment, the indoor air quality, natural environment and quality regulations are extremely strict. The key is to take the actual operation of particles and dust as the key overall goal. strict requirements. The main parameters of Class 1000 dust-free pharmaceutical cleanroom specify the frequency of natural ventilation: Class 100,000, 15 times, Class 10,000, 20 times, 1,000 times, 1,000 times, 30 times, and 100,500 times. Pressure difference: Average wind force of 5Pa for the adjacent room of the main processing plant: Class 10, Class 100 0.3 -0.5m/s; temperature winter> 16; summer<26; Shake 2. The temperature is 45-65%; the ambient humidity of the GMP granule factory is preferably around 50%. The ambient humidity of the hardware factory is slightly higher to prevent electrostatic induction. Noise; 65dB; The filling volume of the fresh air system is 10%-30% of the total air supply and exhaust volume; The light intensity is 300LX. The purification treatment of the 10,000-level dust-free pharmaceutical cleanroom is mainly to use the cleaning cyclone to continuously dilute the indoor air quality, slowly discharge the indoor air pollution, and carry out the cleaning effect. Convective heat transfer is performed unevenly at an uneven rate, mixed with flow back and vortex. Different levels of purification processing plants are mainly based on the difference in the amount of air supply and exhaust per unit time. The article comes from Zhihu. What benefits can the decoration of clean and dust-free workshops bring to the electronics industry?
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