Crystal Boule Grinder from Canada
Crystal boule grinders precisely shape semiconductor crystal ingots to exact diameters and grind orientation flats indicating conductivity and resistivity. As wafer preparation equipment, it qualifies under HTS 8473.29.00.00 for parts of heading 8470 machines used in semiconductor manufacturing.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document tolerance specs (e.g
• ±0.1mm diameter) to prove semiconductor application
• Ensure CE marking or equivalent for high-voltage grinding components