Czochralski Crystal Puller Vacuum Pump from Japan
This vacuum pump is integral to Czochralski crystal growers used in semiconductor manufacturing to produce monocrystalline silicon boules by maintaining a controlled vacuum environment during the crystal pulling process. It falls under HTS 8414.59.65.95 as an other fan or vacuum pump specialized for semiconductor wafer production equipment. The pump ensures ultra-pure conditions essential for slicing high-quality wafers.
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
• Verify equipment is exclusively for semiconductor manufacturing to qualify for potential duty exemptions; provide detailed technical specs and end-use certificates
• Common pitfall: misclassifying as general industrial pump without wafer-specific documentation