Float Zone Crystal Grower RF Coil from Germany
Radio frequency induction coil used in float zone furnaces for producing high-purity silicon crystals from polycrystalline rods, specific to 8472.90.50 machines. It generates the molten zone for zone refining without crucibles. Classified in HTS 8473.40.41.00 for semiconductor processing equipment parts.
Duty Rate — Germany → United States
12%
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 engineering drawings showing coil dimensions matched to float zone chamber geometry
• Certify RF frequency specs (typically 300-500kHz) exclusive to semiconductor crystal growth
• Avoid misclassification by documenting exclusion of crucible-based Czochralski systems