Float Zone Crystal Grower from Mexico
Equipment that uses the float zone method to purify and grow semiconductor crystals by melting a narrow zone of polycrystalline silicon with RF heating while moving it along the rod. Classified under HTS 8479.82.00 for its stirring and homogenizing action in zone refining to achieve ultra-pure monocrystalline silicon.
Duty Rate — Mexico → 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
• Include process flow diagrams showing zone melting and homogenization to justify 8479 classification over furnace equipment
• Ensure labeling specifies semiconductor-grade purity levels to prevent misclassification as general lab apparatus