2026-06-11Views：
Nitrogen is used in semiconductor factories, and to put it bluntly, there are four things to do.
The first thing is to be a bodyguard. When the chip is processed at high temperature, it is particularly easy to be oxidized by oxygen, and it is wasted once oxidized. Nitrogen is an inert gas with a stable character and does not like to react with other things. Therefore, filling nitrogen is equivalent to putting a protective coat on the chip. If oxygen cannot enter, the chip will not be burned out.
The second thing is to be a cleaner. The semiconductor workshop is full of dust and water vapor invisible to the naked eye. It is a disaster for these things to fall on the chip. Nitrogen is blown from the pipeline to take away all the dirt in the cavity and pipeline, ensuring that the chip is produced in a clean environment.
The third thing is to be a porter. When the chip is transported between different processes, it cannot be directly exposed to the air. It should be wrapped with nitrogen and sent to the past, just like an air bag for the chip, which is both anti-collision and anti-dirty.
The fourth thing is air conditioning. Some processes generate a lot of heat, and nitrogen blowing in the past helps to take the tropics away and keep the temperature stable.
Where does the nitrogen come from. The semiconductor factory is usually equipped with a nitrogen making machine to separate the nitrogen in the air. The raw material of the nitrogen making machine is compressed air, so an air compressor must be connected to supply air to it.
This air compressor is very particular. Because the nitrogen making machine has extremely high requirements on the quality of the air intake, even a little oil in the air will be blocked in the molecular sieve of the nitrogen making machine, resulting in a decrease in the purity of nitrogen and directly affecting the yield of the chip. So this air compressor must be oil-free.
Many semiconductor factories now choose water-lubricated oil-free screw air compressors to do this job. Its working method is very simple. The single screw and star wheel inside the machine rotate to compress air. Instead of using oil to reduce friction, it uses water. The water inside lubricates the screw while taking away the heat generated by compression, and the air coming out is completely oil-free. Because there is no oil, there is no need to change oil and no need to deal with waste oil. The condensed water discharged is clean water, and sludge will not accumulate in the pipeline. In this way, the air fed into the nitrogen making machine is really clean, and the purity of the nitrogen coming out is guaranteed.
To put it simply, nitrogen in the semiconductor factory is bodyguards, cleaners, porters and air conditioners, while the water-lubricated oil-free screw air compressor is the source that provides clean raw materials for the nitrogen making machine. The source is not clean, and the back is completely useless.
We need to find out how many ppm(parts per million) the oil content in compressed air is million 1 mg/m 3. First, we need to understand the unit of ppm and its conversion to mg/m ^ 3. PPM is one.
In semiconductor plants, due to the high requirements of the production environment for air quality and purity, oil-free air compressors or water-lubricated air compressors are usually used. These compressors provide high-quality, oil-free compressed air to meet the needs of semiconductor manufacturing processes.
Air compressors, namely air compressors, are widely used and are mainly used in the following industries and fields: Power industry: In the power industry, air compressors are mainly used to drive various pneumatic tools and pneumatic machinery, such as control instruments, Automation devices, etc. In addition, can also
Air compressors, especially the products of Shanghai Grankering Group, water-lubricated air compressors are also oil-free air compressors, which are mainly used to provide high-quality and high-efficiency compressed air in the industrial production process. Water-lubricated air compressor: This product uses water as a lubricant
The air compressor inverter is the key equipment to control the running speed of the air compressor motor. Its working principle is to adjust the motor speed by changing the power frequency of the motor input, so as to realize the precise control of the air compressor output volume. Specifically, the frequency conversion
The output air pressure range of screw compressors is usually flexible, depending on the compressor model, design parameters, and actual usage scenario. In general, the output air pressure range of the screw compressor is between 513 bar, which is converted into megapascals (MPa) of about
The replacement cycle and conditions of the air compressor unit filter are essential to maintain the normal operation of the air compressor system and provide clean compressed air. The main function of the filter is to remove impurities, moisture and oil in the compressed air to protect downstream equipment and workers
When there is water in the air compressor, you can take the following methods to deal with: 1. direct drainage method using the drain valve drainage: at the bottom of the air compressor cooler is usually equipped with a drain valve. Once it is found that there is water inside the air compressor, the drain valve should be opened immediately.
The amount of water in the air, expressed in parts per million (ppm), is not a fixed value, but is affected by a variety of factors, including temperature, humidity, geographic location and climatic conditions. In the air at normal temperature and pressure, the moisture content
The compressed air pressure used in most production workshops is between 0.6 and 0.8 MPa, which can meet the needs of most gas-using equipment. The oil-free water-lubricated air compressor can not only provide this pressure stably, but also flexibly adjust it according to actual needs, which saves electricity and worry.
2018 Granklin Group. All rights reserved 沪ICP备18000439号-2
