Fluorosilicone and FFKM O-Rings from China Suppliers and Factory with High Chemical Resistance and Temperature Tolerance
Applications of Fluorosilicone and Perfluoroether (FFKM) O-rings in the Semiconductor Industry
Excellent Chemical Resistance
It can resist the erosion of highly corrosive chemical reagents such as hydrofluoric acid and nitric acid, ensuring that the sealing parts will not fail due to corrosion during semiconductor etching, cleaning and other processes.
Good High-temperature Resistance
It can be used continuously in the temperature range from -60°C to 200°C. Some models can withstand transient high temperatures, making it suitable for high-temperature processes such as etching and coating.
High Vacuum Performance
With a low outgassing rate, it meets the requirements of the high vacuum environment in the semiconductor industry, prevents gas leakage, and maintains the process vacuum degree.
Superb Aging Resistance
It can maintain elasticity and sealing performance during long-term use, reducing the problem of frequent replacement of equipment due to the aging of sealing parts.
Good Electrical Insulation
It provides reliable electrical insulation at electrical connection parts, prevents short circuits, and ensures the electrical safety of equipment.
Low Outgassing Rate and Low Particle Generation
It avoids the contamination of wafer carrying and transmission processes, meeting the requirements of high cleanliness production.
Ultra-high Temperature Resistance
It has a wider temperature resistance range (from -20°C to 320°C or even higher), and can be stably used in extreme high-temperature processes of semiconductor equipment, such as high-temperature oxidation and sintering.
Super Strong Chemical Resistance
It is almost completely resistant to all highly corrosive chemical media in the semiconductor industry, including aqua regia, concentrated sulfuric acid, specialty gases, etc., and is suitable for harsh corrosion environments that fluorosilicone cannot handle.
Extremely Low Gas Permeability
In an ultra-high vacuum environment, its outgassing rate is much lower than that of fluorosilicone, and the sealing performance is better, meeting the ultimate requirements for vacuum degree of high-end semiconductor equipment.
Extra-long Service Life
Its aging resistance performance is more excellent. In semiconductor equipment with high-frequency and long-cycle operation, its service life is significantly longer than that of fluorosilicone, reducing the maintenance cost.
It is used for the sealing of doors and observation windows of chambers in processes such as etching and coating, and can withstand conventional high temperatures and corrosive gases.
For chambers involving extreme corrosion or high-temperature environments such as aqua regia cleaning and high-temperature sintering, such as high-end etching equipment and special material coating equipment, it ensures the sealing stability.
It seals pipelines and valves for transporting common corrosive gases and chemical reagents, preventing leakage and cross-contamination.
It is used for pipelines and valves transporting concentrated sulfuric acid and specialty corrosive gases (such as chlorine trifluoride), dealing with strong corrosive media that fluorosilicone cannot withstand, and ensuring the safety of the transmission system.
It is used for the sealing of conventional wafer carriers and transfer tracks, isolating dust and particle contamination.
In advanced manufacturing processes with extremely high requirements for cleanliness and chemical resistance (such as wafer production below 5nm), it seals key transmission components to avoid any minor contamination affecting the wafer quality.
It meets the sealing requirements of common vacuum pumps under high temperature and pressure changes, ensuring the pumping efficiency.
It is suitable for high-end vacuum pumps. In an ultra-high vacuum environment and when in contact with highly corrosive pumping media, it maintains the sealing performance and improves the stability of the equipment.
It provides insulation and sealing protection for conventional electrical connectors and sockets.
It is used for electrical connection parts in semiconductor equipment with extremely high requirements for high-temperature and chemical corrosion resistance, such as special power supply interfaces, ensuring electrical safety in extreme environments.
In special process equipment in the semiconductor industry, such as advanced packaging and ion implantation, it deals with complex environments of high temperature and high corrosion, seals core components such as reaction chambers and gas distribution systems, and ensures the process accuracy.
Frequently Asked Questions (FAQ)
1. What is the primary difference between Fluorosilicone and Perfluoroether (FFKM) O-rings?
While both offer chemical and temperature resistance, FFKM (Perfluoroelastomer) provides much higher thermal stability (up to 320°C or higher compared to Fluorosilicone's 200°C) and near-universal chemical resistance, making it suitable for extreme semiconductor processes where Fluorosilicone would fail.
2. Why is a low outgassing rate important in semiconductor sealing applications?
Low outgassing is critical to maintaining ultra-high vacuum conditions and preventing the contamination of wafers during fabrication. FFKM exhibits an extremely low outgassing rate, ensuring high cleanliness and process integrity in advanced nodes.
3. Can Fluorosilicone O-rings be used in high-temperature etching processes?
Fluorosilicone is suitable for standard etching processes with temperatures up to 200°C. However, for extreme high-temperature or highly corrosive etching environments involving specialty gases, FFKM is recommended to ensure long-term sealing performance.
4. Which material is preferred for wafer transmission below 5nm?
For advanced manufacturing processes below 5nm, FFKM is preferred due to its superior particle resistance, low outgassing, and exceptional cleanliness, which prevents micro-contamination on the wafer surface.
5. How does the service life of FFKM compare to Fluorosilicone?
In harsh high-frequency and long-cycle operations, FFKM has a significantly longer service life due to its superior aging and chemical resistance. This reduces equipment maintenance frequency and overall operating costs, despite its higher initial cost.
6. What corrosive media can FFKM withstand that Fluorosilicone cannot?
FFKM is highly resistant to aggressive media like aqua regia, concentrated sulfuric acid, and specialty reactive gases (e.g., chlorine trifluoride). Fluorosilicone has limited resistance to these extreme chemicals and may degrade quickly if exposed.