Float Zone Crystal Furnace Turbine Drive from China
A turbine drive unit for float zone furnaces melts and refines semiconductor rods to produce ultra-pure monocrystalline silicon without crucibles. Classified in HTS 8411.99.90 as an other gas turbine part for high-vacuum zone refining in wafer manufacturing. The turbine enables precise RF heating zone movement critical for defect-free crystals.
Duty Rate — China → United States
37.4%
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
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Provide process flow diagrams illustrating float zone method and turbine's role in semiconductor material growth
• Declare vacuum chamber specifications and RF generator integration to distinguish from general furnace parts
• Budget for additional FDA/BIS licensing if purity levels exceed standard industrial thresholds