Float Zone Crystal Grower for Silicon Boules from Canada
A float zone machine produces ultra-pure monocrystalline silicon boules via zone melting, ancillary to printing processes in semiconductor fabrication using heading 8442 photolithography equipment. It prepares crystal material for wafer slicing used in circuit printing. Falls under 8443.91.10.00 for printing ancillary machines.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include process flow diagrams showing integration with printing machinery to substantiate ancillary classification
• Label with exact zone melting parameters; mismatches cause reclassification risks