Semiconductor Crystal Boule Grinder from Japan
Precision grinder for shaping crystal boules to exact wafer diameters and flats indicating conductivity type. A key part of wafer preparation equipment under 8425, classified in 8431.10.0090 'Other'. Used post-growth to prepare for slicing in semiconductor fabrication.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.94.4315%Parts of passenger vehicles and light trucks that are products of Japan as provided for in subdivision (l) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent as provided for in subdivision (m) of U.S. note 33 to this subchapter.
9903.03.060%Articles of iron or steel, derivative articles of iron or steel, articles of aluminum, derivative articles of aluminum, passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks and parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks, semiconductor articles, semi-finished copper and intensive copper derivative products, wood products, or medium- and heavy-duty vehicles or medium- and heavy-duty vehicle parts, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
9903.74.110%Articles as provided for in subdivision (l) of U.S. note 38 to this subchapter.
Import Tips
• Provide evidence of resistivity flat grinding function; ensure tolerances match semiconductor specs
• Avoid pitfall of classifying as general metalworking grinder under 8460