Crystal Boule Grinder from Canada
Crystal boule grinders precisely grind semiconductor crystal boules to exact diameters and flats indicating conductivity and resistivity, falling under HTS 8412.90.90.85 as parts of engines/motors in wafer preparation equipment. Essential for semiconductor manufacturing tolerance preparation.
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
• Document precision specs (e.g
• micron-level tolerances) to justify semiconductor-specific classification
• Pair with HTS statistical notes documentation for faster clearance
• Avoid misdeclaration as general metalworking machinery to prevent higher duties