Semiconductor Wafer Cleanliness Tester from China
Optical tester for non-destructive measurement of surface particulate and organic contamination on bare silicon wafers. Employs dark-field microscopy for real-time cleanroom monitoring. Qualifies under HTS 9031.49.70.00 for measuring surface particulate contamination on semiconductor devices.
Duty Rate — China → United States
25%
Rate breakdown
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]
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Document particle size detection range (e.g
• 20nm-10μm) and throughput specs for customs review
• Obtain FDA equivalence if dual-use in pharmaceutical cleanrooms, though primarily semiconductor
• Bundle with stage adapters only if specified for wafer sizes; otherwise classify separately