New Crystal Boule Grinder from Japan
Precision grinder for semiconductor crystal boules, used to achieve exact diameter and grind flats indicating conductivity type and resistivity prior to wafer slicing. HTS 8439.10.0010 covers this new wafer preparation equipment for fibrous cellulosic material processing in semiconductor context. Ensures wafers meet tight tolerances for device 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
• Submit engineering drawings highlighting semiconductor-specific features like flat grinding for resistivity marking
• Confirm 'new' with no prior use documentation
• Avoid pitfall of classifying as general grinding machines under 8460