High-purity alumina process tubes, diffusion boats, susceptors, and ICP torch components for silicon diffusion furnaces, oxidation furnaces, and analytical instruments. Na contamination <5 ppm — critical for silicon device yield at advanced technology nodes.
At 12nm and below, metallic contamination of silicon wafers during diffusion and oxidation causes catastrophic yield loss. A single sodium ion on a wafer surface during 1,100°C diffusion creates a device-level defect. Standard 99.7% commercial Al₂O₃ contains 100–500 ppm Na₂O — unacceptable for front-end semiconductor processing.
Our 99.99% Al₂O₃ process tubes are sintered from 99.99% pure powder with Na <5 ppm and transition metals <10 ppm total — the specification required by leading DRAM and logic fab process engineering teams.
semiconductor processing
Understanding contamination mechanisms helps justify the 99.99% specification to procurement — the cost difference vs 99.7% is small; the yield impact is not.
Specify tube dimensions (OD/ID/length), quantity, and purity requirement. We reply within 24h with availability and pricing.