Boule Flatting Grinder Filtration System from Canada
Air purification module for grinders that create orientation flats on semiconductor crystal boules to indicate resistivity and doping type. Captures grinding dust to protect wafer yield; under HTS 8421.39.0115 as dust collection for statistical note (b)(ii)(A) equipment. Vital for accurate wafer identification in fabs.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document flat positioning tolerances (±0.5°) linkage to filtration performance
• OEM integration proof essential