Diamond Wafer Lapper from China
Lapping machine using diamond slurry to achieve flatness tolerances on semiconductor wafers before polishing. HTS 8464.90.0120 covers wafer grinders/lappers/polishers as mineral material working tools per notes. Prepares wafer surface for device fabrication.
Duty Rate — China → United States
39.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Specify diamond grit size and flatness specs (e.g
• <1μm) for verification
• Slurry system classified separately—declare as parts
• EU REACH compliance for diamond abrasives