CNC Crystal Boule Grinder from Canada
Numerically controlled grinding machine that shapes semiconductor crystal boules to precise diameters and grinds flats indicating conductivity type. Classified in HTS 8460.90.40 for its use of abrasives in metal (silicon/gallium arsenide) finishing during wafer manufacturing.
Duty Rate — Canada → United States
14.4%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide detailed technical drawings showing abrasive grinding mechanism to avoid reclassification
• Label as 'numerically controlled' explicitly; include CNC software details in commercial invoice
• Watch for undervaluation pitfalls; semiconductor equip often scrutinized for fair market value