Float Zone Crystal Grower from China
Machine employing float zone method with mixing and stirring mechanisms to purify and grow semiconductor boules by melting a narrow zone of polycrystalline rod via RF heating while translating. Classified under HTS 8479.82.0040 for its kneading/stirring role in zone refinement for ultra-pure silicon wafers. Essential for producing defect-free crystals used in high-performance chips.
Duty Rate — China → United States
35%
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 float zone process diagrams showing stirring mechanism to distinguish from simple melting equipment
• Ensure RF coil specifications meet semiconductor material purity standards to prevent Chapter 85 reclassification