Czochralski Crystal Puller for Silicon Wafers from Japan
A machine that uses the Czochralski method to grow monocrystalline silicon boules from molten silicon, from which semiconductor wafers are sliced. It falls under HTS 8455.21.00.00 as a hot rolling mill because the crystal growth process involves controlled heating and pulling, akin to hot processing of semiconductor materials into boule form prior to wafer fabrication.
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 qualifies under statistical notes for semiconductor wafer manufacturing to ensure correct classification
• Provide detailed technical specs and end-use certificates proving use in crystal growth for boule production
• Avoid misclassification as general machinery by documenting Czochralski method specifics