Copper Alloy Semiconductor Wafer Polisher Ring from Germany
Retaining ring made of copper alloy for chemical-mechanical wafer polishers in 8426 machinery, ensuring wafer edge uniformity. HTS 8431.49.1070 for copper parts dedicated to semiconductor wafer prep per chapter notes. Vital for mirror-finish surfaces required in chip fabrication.
Duty Rate — Germany → United States
10%
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
• Certify copper content and semiconductor-only use; prepare for CBP Ruling requests
• Track wear rates in documentation
• Common issue: sets with non-copper parts may reclassify