Directional Solidification Furnace from Japan
Furnaces using Bridgman or heat exchanger methods for controlled semiconductor ingot solidification from melt. Classified under HTS 8454.30.00.90 as other metallurgical casting machines for crystal growth per statistical notes.
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
• Thermal gradient profiles must document casting methodology
• Quartz crucible compatibility certs prove semiconductor use
• Avoid glass furnace confusion (8417.90) by emphasizing metal casting