Crystal Boule Grinder Pressure Compressor from Canada
Compressor providing pneumatic pressure control for crystal grinders that shape semiconductor boules to precise diameters for wafer production. HTS 8414.80.20 applies to such other compressors in wafer manufacturing equipment. Ensures accurate grinding of conductivity flats on silicon boules.
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 boule diameter precision specs (e.g
• 200-450mm) to prove semiconductor application; obtain supplier affidavits
• Common error: classifying with general grinding machine parts