Crystal Boule Grinder from Canada
Precision grinder that shapes semiconductor crystal boules to exact diameters and grinds flats indicating conductivity type and resistivity. Critical step in wafer preparation after growth. Classified in HTS 8479.79.00.00 for mechanical preparation machines in semiconductor processing.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Document diameter precision specs to distinguish from general grinders; obtain cleanroom compatibility certifications
• Pitfall: confusing with optical lens grinders