Crystal Boule Grinder from Japan
Crystal boule grinders precisely grind semiconductor crystal boules to exact diameters and flats indicating conductivity and resistivity, falling under HTS 8412.90.90.85 as parts of engines/motors in wafer preparation equipment. Essential for semiconductor manufacturing tolerance preparation.
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
• Document precision specs (e.g
• micron-level tolerances) to justify semiconductor-specific classification
• Pair with HTS statistical notes documentation for faster clearance
• Avoid misdeclaration as general metalworking machinery to prevent higher duties