RF Zone Refiner for Semiconductors from Mexico
Radio frequency zone refining furnace for ultra-purification of semiconductor rod materials through repeated melting/solidification passes. Falls under HTS 8419.89.95.85 for temperature treatment equipment processing other semiconductor materials.
Duty Rate — Mexico → United States
14.2%
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
• Document purity improvement specs (ppb levels) proving semiconductor material refining
• Include RF power and zone travel control parameters
• Distinguish from metallurgical zone refiners lacking semiconductor purity specs