Single-Side Wafer Polisher from Canada
Single-side wafer polishers create mirror-finish surfaces on semiconductor wafers using colloidal silica slurry for device fabrication readiness. Falls under HTS 8443.99.5050 as printing machinery parts for wafer polishing per statistical note (a)(ii)(C). Achieves sub-nanometer surface roughness.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide RMS surface roughness specs (<0.2 nm); differentiates from general polishers
• Include cleanroom integration requirements in technical docs
• Avoid 9018 classification; emphasize production-scale throughput