Crystal Boule Grinder Cooling Fan from Germany
Cooling fan for crystal grinders that shape semiconductor boules to exact wafer diameters and flats indicating conductivity, preventing overheating during precision grinding. Falls under HTS 8414.59.65.95 as other fans for wafer preparation apparatus in semiconductor statistical notes. Maintains thermal stability for accurate resistivity marking.
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
• Document fan's role in grinding flats for conductivity typing; use HTS advisory rulings for confirmation
• Common issue: classifying as HVAC fan without process-specific evidence