Boule Flattening Grinder from Japan
Specialized grinders that create precise flats on semiconductor boules to encode crystal orientation and doping information. HTS 8443.99.5050 as printing parts for crystal grinding per statistical note (a)(ii)(A). Flat geometry critical for wafer alignment.
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
• Specify flat length/position tolerances per SEMI standards
• Document integration with puller systems
• Avoid 8459 classification; emphasize boule-specific fixturing