Float Zone Crystal Growth Furnace from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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