Wafer Lapping Machine Slurry Valve from China
Specialized valve for metering abrasive slurry in wafer lappers and polishers that achieve flatness tolerances for semiconductor fabrication. It qualifies under HTS 8481.90.9040 as a part of 8481.20 valves in wafer preparation equipment.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Provide slurry compatibility test data to prove semiconductor-specific design
• Label with exact tolerances (e.g
• <1 micron flow control) for customs review
• Watch for undervaluation pitfalls when importing high-tech prototypes