Czochralski Crystal Puller Compressor from Japan
A specialized compressor used in Czochralski crystal growers to maintain vacuum and gas pressure during the production of monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8414.80.20 as an 'other compressor' essential for semiconductor manufacturing equipment, distinct from standard air compressors. This equipment supports the precise control required in crystal growth processes.
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 is specifically for semiconductor crystal growth to qualify under statistical notes; provide manufacturer specs and end-use certificates
• Common pitfall: misclassifying as general industrial compressor without proof of semiconductor application