Float Zone Crystal Grower from Germany
Float zone crystal growers use radio frequency heating to melt a narrow zone of polycrystalline silicon rod, allowing impurities to be zoned out while forming high-purity monocrystalline silicon for wafers. The process relies on localized heating and cooling for zone refining. Fits HTS 8419.89.95 for its temperature change processes in semiconductor material preparation.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include process flow diagrams showing RF heating and zone melting to confirm classification
• Check for Section XVI notes on machines with integrated testing functions that may require Chapter 90
• Label as semiconductor-specific to leverage potential duty suspensions