Semiconductor Wafer Crystal Grinder-Slotter from Mexico
Combined crystal grinder and slotter that grinds semiconductor crystal boules to diameter while slotting flats indicating conductivity type, per statistical note (a)(ii)(A). HTS 8461.20.80 for 'other' slotting/shaping machines working cermets in semiconductor manufacturing. Essential first step after crystal pulling.
Duty Rate — Mexico → United States
14.4%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Reference statistical note (a)(ii)(A) explicitly in import declarations for crystal grinders
• Cleanroom classification (ISO 3-5) certification mandatory for semiconductor equipment
• Particle generation test data prevents Chapter 90 medical instrument misclassification