HEPA filter usage scenarios in the semiconductor industry

In the semiconductor industry, the usage scenarios of HEPA filters are very extensive and important. The following are the main usage scenarios of HEPA filters in the semiconductor industry:
1. Semiconductor manufacturing environment
Clean workshop: The manufacturing of semiconductor products needs to be carried out in a highly clean environment to prevent dust, particles, and harmful gases in the air from contaminating the products. HEPA filters are installed in the air supply and return air systems of the clean workshop, as well as the air inlets of key equipment (such as wafer etcher, cleaning system, etc.) to filter out particles and harmful gases in the air to ensure that the air cleanliness in the workshop meets production requirements.
Key process areas: In many key process links of semiconductor manufacturing, such as lithography, etching, ion implantation, etc., particles and pollutants in the air may have a serious impact on the performance and reliability of the product. The use of HEPA filters in these areas can further reduce the concentration of pollutants in the air and improve the yield and reliability of the product.
2. AMC filter application
Gaseous molecular contaminant filtration: Semiconductor AMC filters (Airborne Molecular Contaminant Filter) are mainly used to adsorb and filter gaseous molecular-level pollutants in the air, such as acids, alkalis, polymer additives, organic metal compounds, etc. These pollutants may cause harm in multiple key processes of semiconductor manufacturing, affecting the yield, performance, and reliability of products. AMC filters effectively remove various gaseous molecular pollutants in the air through physical adsorption and chemical reactions, ensuring that semiconductor products are manufactured in a clean environment.
Fresh air handling unit and fan filter unit: AMC filters are usually installed on fresh air handling units (MAUs) and fan filter units (FFUs). These systems pre-treat and filter the air entering the clean room to further reduce the AMC concentration in the air and ensure that the air quality in the clean room meets production requirements.
3. Advantages and Necessity
High filtration efficiency: HEPA filters can filter out particles with a diameter of only 0.3 microns or more, and even achieve higher filtration efficiency (such as ULPA filters can reach more than 99.999%) to ensure the cleanliness of the production environment.
Long service life and low maintenance costs: High-efficiency filters have a long service life and low maintenance costs, which can reduce the operating costs of enterprises.
Guarantee product quality: By filtering out particles and harmful gases in the air, HEPA filters ensure the quality and reliability of semiconductor products and reduce product defects and pollution.
In summary, the use scenarios of high-efficiency filters in the semiconductor industry are mainly concentrated in clean workshops, key process areas, and key locations such as fresh air handling units and fan filter units. The application of these filters ensures that the manufacturing of semiconductor products is carried out in a highly clean environment, improving the yield and reliability of the products.