Rebuilt Crystal Flat Grinder from Germany
Used machine for grinding orientation flats on silicon boules to denote resistivity and doping type. HTS 8463.90.0040 for rebuilt metal/cermet tools without removal. Key for wafer identification in fabs.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify flat length/position tolerances per SEMI standards
• Include rebuild warranty against flat accuracy drift
• Avoid describing as 'lapping' to prevent 8460 shift