Semiconductor Wafer Lapper from Germany
Wafer lappers use loose abrasive slurries to lap both sides of semiconductor wafers simultaneously, achieving critical flatness for device fabrication. HTS 8479.90.95.96 covers this wafer preparation equipment essential for semiconductor processing.
Duty Rate — Germany → 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 total thickness variation (TTV) capabilities (<0.5 microns typical) in technical literature
• Demonstrate double-sided lapping mechanism specific to semiconductor wafers
• Avoid misclassification by documenting slurry compatibility with silicon/gallium arsenide