Crystal Boule Grinder from Germany
Crystal boule grinders precisely grind semiconductor crystal ingots to exact diameters and create orientation flats indicating conductivity. Falls under HTS 8474.80.0080 as grinding machinery for solid mineral substances (silicon boules). Prepares crystals for wafer slicing in semiconductor fabrication.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document grinding tolerances (e.g
• ±0.1mm) to prove precision mineral processing
• Pair with wafer manufacturing end-use statement
• Avoid classifying as general metalworking; specify semiconductor crystal material