Float Zone Crystal Grower RF Heating Coil from Germany
RF heating coil used in float zone crystal pullers to melt and zone-refine semiconductor boules like silicon for ultra-pure wafers. Classified under HTS 8431.49.90.94 as a principal part for heading 8429 crystal growth furnaces in semiconductor manufacturing.
Duty Rate — Germany → United States
15%
Rate breakdown
9903.82.2215%Derivative steel articles the product of Argentina, Ecuador, El Salvador, Guatemala, Japan, the Republic of Korea, Liechtenstein, Switzerland, Taiwan, the United Kingdom, or a member nation of the European Union, as provided for in subdivision (c)(xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide technical drawings proving sole use in float zone machinery of 8429; declare RF frequency specs for customs scrutiny; avoid pitfalls by excluding general-purpose coils which shift to 8515