Wafer Lapping Machine from China
Mechanical apparatus that uses abrasive slurries to lap semiconductor wafers to precise thickness and flatness tolerances before polishing. Removes saw damage and achieves planarity critical for device fabrication. Under HTS 8479.79.00.00 as preparatory semiconductor processing equipment.
Duty Rate — China → United States
20%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Specify flatness specs (e.g
• <1μm TTV); include slurry handling system details
• Pitfall: overlap with general polishing machines