Czochralski Crystal Puller from Japan
A Czochralski crystal puller is specialized machinery used to grow monocrystalline silicon boules by melting polycrystalline silicon and slowly pulling a seed crystal to form ingots for semiconductor wafer production. It involves precise temperature control for melting and crystallization processes. Classified under HTS 8419.89.95 as equipment for temperature-based material treatment in semiconductor manufacturing.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify equipment meets statistical note definitions for semiconductor manufacturing to avoid reclassification
• Provide detailed technical specs and end-use certificates for clean energy exemptions if applicable
• Ensure proper documentation of temperature control features to distinguish from Chapter 84 heading 8486