Semiconductor Processing Seals For Field-Proven Contamination Control
Purity is critical to high wafer yield, and Kalrez® seals are designed with properties that help reduce contamination from particulates, outgassing and extractables.
Kalrez® seals for semiconductor processing are field-proven in the manufacture of semiconductor chips.
They can help extend planned maintenance intervals, and thereby lower long-term cost of ownership, in a wide range of semiconductor processes. In a number of fabrication customer evaluations, Kalrez®seals exhibited improved mechanical strength, lower particle generation and longer seal life versus competitive perfluoroelastomers, in both static and dynamic sealing applications.
Kalrez® seals can help improve semiconductor manufacturing in a range of wafer-fabricating operations, including:
Better Performance for Spansion
Spansion, the largest provider of flash memory solutions, turned to DuPont for material options that would produce longer seal life with reduced particle generation. High particle count and leaks from seal erosion and compression set caused seal issues in multiple processes. Kalrez® 9100 parts exhibited significantly less seal erosion, reduced particle generation, and provided better elastic recovery characteristics. View Spansion Semiconductor O-rings Case Study
A Proven Leader
When IMEC tested Kalrez® 9100 seals versus incumbent seals in an isolation valve and top nozzle position, the 9100 seals appeared undamaged and exhibited no sign of cracking after 5000 cycles.
These results inspired the international research center IMEC in Belgium to change the perfluoroelastomer seals on all positions to Kalrez® 9100 seals. View IMEC Case Study
Kalrez® parts resist over 1,800 different chemicals and withstand temperatures up to 327ºC. This elastomer is widely used in demanding chemical processing and semiconductor manufacturing, as well as pharmaceutical, aerospace and oil & gas applications.
INFORMATION & IDEAS
DuPont has a portfolio of chemical resistant elastomers and thermoplastics to match a broad spectrum of challenges – from aggressive automotive fuels to custom industrial equipment.
Evaluation and comparison of outgassing for three different classes of elastomeric seal materials used in semiconductor process environments using DuPont test methodology.
Chamber cleaning with NF3 / O2 plasma increased maintenance at Spansion due to seal erosion. Kalrez® 9100 parts improved productivity and reduced cost-of-ownership. Kalrez® 9100 parts were successfully qualified in both thin films and dry etch tools.