Graphite Boat for Semiconductor Processing from Japan
Artificial graphite boats or trays used to hold silicon wafers during high-temperature semiconductor diffusion furnaces. Falls under HTS 3801.10.50 as 'other' artificial graphite in semi-manufactured boat form, essential for thermal uniformity in wafer processing.
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
• Require ultra-high purity certificates (<5 ppm impurities) for semiconductor-grade classification
• Include furnace compatibility specs to prevent reclassification as machinery parts
• File for duty drawback if re-exported after processing in US facilities