Wafer Polisher Slurry Distribution Ring from Mexico
Perforated ring that evenly distributes chemical slurry across semiconductor wafer surface during polishing operations. Critical for uniform material removal rates. Classified 8487.90.00 as mechanical process part.
Duty Rate — Mexico → United States
13.9%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Specify hole pattern and material resistant to chemical slurries
• Document even distribution performance data
• Common error: plastic parts to Chapter 39