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Boule Flatting Grinder Filtration System from Mexico

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 — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Document flat positioning tolerances (±0.5°) linkage to filtration performance

OEM integration proof essential