Czochralski Crystal Puller Nozzle Assembly from Japan
This nozzle assembly is a critical part of Czochralski crystal pullers used in semiconductor wafer manufacturing to project inert gas jets for controlled crystal growth. It falls under HTS 8424.90.90.40 as a component of steam and similar jet projecting machines employed in high-purity monocrystalline silicon boule production. The precise jet projection ensures minimal contamination during the pulling process.
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 classification with CBP rulings specific to semiconductor equipment parts to avoid misclassification as general machinery parts
• Include detailed technical specs and end-use certificates proving semiconductor manufacturing application for duty preferences