High-Purity Copper Balls for Wafer Lapping Machine Thrust Bearings from Germany
Ultra-pure copper alloy balls for thrust bearings in wafer lappers that achieve flatness tolerances critical for semiconductor fabrication. Classified HTS 8482.91.0015 per statistical note 6 for copper balls in wafer preparation equipment. Provides contamination-free load distribution during lapping.
Duty Rate — Germany → United States
14.4%
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
• Require particle count certification (<10 particles >0.5μm)
• Submit lapping machine blueprints showing bearing placement
• Monitor for oxidation—specify inert atmosphere packaging