Float Zone Crystal Growth Furnace from China
Nonelectric furnace employing the float zone method to purify and grow monocrystalline semiconductor rods, particularly silicon, by melting a narrow zone with RF heating in a vacuum chamber. Critical for producing ultra-high purity materials used in power semiconductors and solar cells. Falls under 8417.80.00.00 as an industrial nonelectric furnace tailored for semiconductor boule production.
Duty Rate — China → United States
41.4%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• Document RF heating as nonelectric process to distinguish from electric furnaces; include material compatibility certifications for silicon/gallium arsenide
• Beware of reclassification if furnace diameter exceeds statistical notes for wafer prep equipment
• Ensure INA bonding compliance for high-value semiconductor tools