Crystal Boule Grinder from Japan
Crystal boule grinders precisely grind semiconductor crystal ingots to exact diameters and create orientation flats indicating conductivity type and resistivity. Falls under HTS 8479.90.95.96 as wafer preparation equipment for semiconductor processing.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Submit engineering drawings showing flat orientation capabilities critical for semiconductor classification
• Document achievable tolerances (typically <1 micron) to distinguish from general grinding machines