Antimony-Doped Silicon Wafers from China
Silicon wafers with antimony doping for high-temperature n-type applications in power electronics. Provided in standard 200mm disc format for device fabrication. Falls under 3818.00.00 as doped chemical element for electronics.
Duty Rate — China → United States
50%
Rate breakdown
9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document antimony concentration; exceeds thresholds trigger additional regs
• Temperature-controlled shipping prevents dopant diffusion issues