Boule Flatting Grinder Filtration System from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document flat positioning tolerances (±0.5°) linkage to filtration performance
• OEM integration proof essential