Wafer Slicing Diamond Saw from China
Wafer slicing diamond saws cut ultra-thin slices from monocrystalline semiconductor boules using coolant systems with precise temperature regulation to maintain crystal integrity during high-speed cutting. Critical step in wafer manufacturing per statistical note. Falls under HTS 8419.89.95 for its cooling-involved material processing.
Duty Rate — China → United States
39.2%
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Specify diamond wire or blade specs for semiconductor slicing to match statistical note (a)(ii)(B)
• Include wafer thickness tolerance data (typically <100μm) for classification support
• Watch for reclassification if saw lacks semiconductor-specific precision features