Crystal Boule Grinder Capstan Drum from Japan
Rotary capstan drum for crystal grinders that shape semiconductor boules to precise wafer diameters and flats indicating conductivity. Under HTS 8431.10.0010 for 8425.19 machinery parts, per statistical note (a)(ii)(A) for crystal grinders.
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 grinding specs for resistivity indication to tie to semiconductor statistical note
• Obtain advance ruling if drum adaptable to non-semiconductor uses