Semiconductor Wafer Lapper from Canada
Semiconductor wafer lappers use abrasive slurries with temperature-controlled slurries to lap both sides of silicon wafers simultaneously, achieving critical flatness for device fabrication. Part of wafer preparation equipment in statistical note (a)(ii)(C). HTS 8419.89.95 covers the temperature-regulated lapping process.
Duty Rate — Canada → United States
64.2%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide flatness specification data (e.g
• <1μm TTV) proving semiconductor application
• Ensure slurry temperature control documentation to justify 8419 classification