Low-Outgassing PTFE Semiconductor Grade for Vacuum and Plasma Processes

Vacuum and plasma processes are core links of advanced semiconductor manufacturing such as nanometer chip etching, thin-film deposition and surface treatment. These processes require an ultra-high vacuum and ultra-clean environment, and any volatile gas precipitation will lead to process environment pollution, wafer film defects and circuit performance failure. Ordinary polymer materials have high outgassing rates, and will release a large amount of organic volatile substances in high-vacuum environments, which cannot meet the ultra-high cleanliness requirements of semiconductor vacuum processes. Low-outgassing semiconductor-grade PTFE is specially optimized for vacuum and plasma scenarios, becoming the preferred auxiliary material for ultra-clean vacuum process equipment PTFE SHEET.

Low-outgassing PTFE semiconductor materials adopt professional high-temperature vacuum degassing and purification processes to completely remove residual monomers, adsorbed water molecules and volatile organic compounds in the materials. After strict SEMI PV2 outgassing standard testing, the total mass loss and volatile condensation content are far lower than the industry limit, reaching the ultra-low outgassing level required by advanced semiconductor vacuum processes. In long-term high-vacuum operation, the material has almost no gas precipitation, ensuring the high purity and stability of the vacuum environment.

The material has excellent plasma radiation resistance and ion erosion resistance, adapting to long-term plasma process working conditions. High-energy plasma bombardment will cause molecular decomposition and gas precipitation of ordinary materials, while low-outgassing PTFE has ultra-stable fluorocarbon molecular structure, which can resist plasma impact without molecular cracking and volatile gas generation. It maintains structural integrity and ultra-clean performance in repeated plasma process cycles, effectively avoiding process environment pollution and wafer defects. The customized PTFE TUBE and sheet components are widely used in vacuum cavity lining, plasma equipment sealing and auxiliary protection parts.

In addition to low-outgassing performance, this semiconductor-grade PTFE has excellent vacuum stability and low-temperature resistance. It will not deform, shrink or release gas in ultra-high vacuum and low-temperature environments, ensuring the dimensional stability of equipment auxiliary components and the tightness of vacuum cavities. Its chemical inertness resists the erosion of various plasma process gases, no chemical reaction and impurity generation, further ensuring the ultra-clean state of the plasma reaction environment.

With the development of semiconductor processes to sub-10nm ultra-fine nodes, the requirements for vacuum environment cleanliness are becoming more and more stringent, and low-outgassing materials have become the mandatory standard for advanced process equipment. Low-outgassing PTFE semiconductor-grade materials are widely used in vacuum etching, PVD/CVD deposition, plasma cleaning and other core processes, effectively eliminating process pollution caused by material outgassing, improving chip manufacturing yield and process stability, and supporting the high-precision production of advanced semiconductor devices.