Rebuilt Crystal Flat Grinder from Canada
Used machine for grinding orientation flats on silicon boules to denote resistivity and doping type. HTS 8463.90.0040 for rebuilt metal/cermet tools without removal. Key for wafer identification in fabs.
Duty Rate — Canada → United States
14.4%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Specify flat length/position tolerances per SEMI standards
• Include rebuild warranty against flat accuracy drift
• Avoid describing as 'lapping' to prevent 8460 shift