Crystal Puller Chamber Vacuum Pump from Canada
High-vacuum pump for the growth chamber of Czochralski pullers, evacuating to ultra-low pressures for pure silicon crystal formation in semiconductor boule production. HTS 8414.59.65.95 classification for other vacuum pumps in wafer manufacturing equipment. Achieves pressures below 10^-6 torr essential for defect-free crystals.
Duty Rate — Canada → United States
12.3%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Vacuum spec sheets mandatory; EAR export control checks for high-vac tech
• Avoid misclassification as lab pump without crystal grower context