Wafer Lapping/Polishing Speed Controller from Canada
Mechanical speed changer maintaining constant surface speed during semiconductor wafer lapping/polishing. Statistical note (a)(ii)(C) coverage under HTS 8486.40.70.00. Critical for wafer flatness within nanometer tolerances.
Duty Rate — Canada → United States
13.9%
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
• Cite statistical note reference for lappers/polishers
• Flatness tolerance specs (bow/warp) justify semiconductor use
• Slurry compatibility documentation for process verification