Crystal Boule Grinder from Mexico
Precision crystal grinder that shapes semiconductor boules to exact diameters and grinds flats indicating conductivity type for wafer preparation. HTS 8448.20.50 classification as parts/accessories of heading 8444 auxiliary machinery for semiconductor processing. Ensures wafers meet strict dimensional tolerances.
Duty Rate — Mexico → United States
13.3%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Document flat-grinding function for conductivity indication to prove semiconductor-specific use
• Maintain calibration certificates showing micron-level precision required for wafers