Silicon Ingot Grinder from Mexico
Precision grinder for shaping silicon ingots to exact diameters with orientation notches before wafer slicing in semiconductor production. Falls under HTS 8479.89.95.99 as crystal boule grinder per statistical note (a)(ii)(A). Ensures consistent wafer quality.
Duty Rate — Mexico → 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
• Specify ingot diameters (150-450mm) and flat/notch grinding patterns for dopant indication
• Provide vacuum chuck specs for handling cylindrical crystals without contamination