Czochralski Crystal Puller from Mexico
A numerically controlled machine used in semiconductor manufacturing to grow monocrystalline silicon boules by the Czochralski method, involving precise pulling and rotation of a seed crystal from molten silicon. It falls under HTS 8461.90.30.80 as a numerically controlled machine tool for material processing by removing excess material through grinding and shaping during boule formation. This equipment precisely shapes semiconductor crystal growth for subsequent wafer slicing.
Duty Rate — Mexico → United States
14.4%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify numerical control certification and provide detailed technical specs for customs classification; ensure compliance with semiconductor export controls like Wassenaar Arrangement; common pitfall is misclassifying as testing equipment under Chapter 90