According to the survey data released by Huaon Industry Research Institute, China's PFA market has been developing rapidly in recent years. Considering the accelerated localization progress of electronic-grade and medical-grade PFA products and the faster release pace of downstream demand, the market scale is expected to reach 481 million US dollars by 2028, with a compound annual growth rate (CAGR) of about 16% from 2024 to 2028.

Amid this growth trend, Ultra-Clean PFA Tubes, as an important representative of high-end PFA products, have attracted particular attention in the semiconductor and other precision manufacturing fields. So, what core advantages do Ultra-Clean PFA Tubes possess that enable them to occupy such an important position and have broad market prospects in the semiconductor manufacturing industry?

The key difference between Ultra-Clean PFA Tubes and ordinary PFA tubes lies in the purity of the pipe fittings. This type of tubing can meet the extremely stringent cleanliness requirements for wet electronic chemical packaging materials in advanced semiconductor manufacturing processes, with metal ion elution levels controlled to the ppt level.

Ultra-Clean PFA Tubes are made from PFA, a copolymer of tetrafluoroethylene (TFE) and perfluoroalkyl vinyl ether (PPVE). Its physical, chemical, and electrical properties are similar to those of polytetrafluoroethylene (PTFE). The difference is that a small number of perfluoroalkoxy side chains are introduced into the PFA molecular chain, which improves the melt fluidity of the material and allows it to be processed and formed by injection molding, extrusion, and other methods. Hence, it is also known as "melt-processible polytetrafluoroethylene".

Ordinary PFA tubes contain unstable terminal groups, which tend to release ionic impurities, limiting their application in high-purity environments such as semiconductors. In contrast, Ultra-Clean PFA Tubes significantly reduce the content of unstable groups through raw material and process optimization, further enhancing material purity and stability, and thus drastically lowering the concentration of eluted metal ions. Therefore, they are suitable for the transportation of high-purity chemicals in semiconductor manufacturing.

In terms of performance, Ultra-Clean PFA Tubes have the following outstanding advantages:

1. Excellent chemical corrosion resistance, enabling them to withstand erosion by strong acids (e.g., hydrofluoric acid, sulfuric acid, nitric acid), strong alkalis, strong oxidants, and various high-purity solvents.
2. Good high-temperature resistance, which can adapt to high-temperature process environments such as chemical vapor deposition (CVD), diffusion, and ion implantation; low outgassing property, which can effectively prevent the release of gas molecules in vacuum process environments and avoid contamination.
3. Superior electrical properties such as low dielectric constant, making them suitable for components requiring electrical insulation.

Therefore, Ultra-Clean PFA Tubes are also known as the "golden blood vessels" in semiconductor manufacturing. They undertake the important task of transporting high-purity chemicals and are key components for Fab plants to establish a complete and reliable high-purity fluid distribution system.