Float Zone Crystal Cooling Trough from Mexico
Liquid-cooled trough system for float zone silicon crystal growth, rapidly quenching the molten zone to form defect-free monocrystalline ingots for wafer slicing. HTS 8419.89.9540 for specialized cooling in semiconductor boule manufacturing. Matches statistical note (a)(i).
Duty Rate — Mexico → United States
14.2%
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
• Provide float zone furnace integration drawings and cooling gradient specifications
• Distinguish from general industrial cooling towers via semiconductor boule dimensions