Antimony-Doped Silicon Wafer Substrates from China
Silicon discs doped with antimony for n-type semiconductors used in power electronics and sensors. Provides higher doping levels than phosphorus for specific high-current applications. HTS 3818.00.00.95 applies to these other doped electronic compounds.
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%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Certify dopant uniformity via SIMS analysis; antimony requires additional hazardous material declarations
• Use vacuum-sealed shipping to maintain surface quality; document intended end-use in electronics