Czochralski Crystal Puller from Mexico
A machine used to produce monocrystalline silicon boules by pulling a seed crystal from molten silicon in a crucible, involving high-temperature glass-lined vessels for containment. It falls under HTS 8475.29.00.00 as equipment for hot working glass envelopes in semiconductor crystal growth processes. This apparatus precisely controls temperature gradients essential for semiconductor wafer production.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify machine includes glass hot-working components like crucibles; provide technical specs proving semiconductor use
• Common pitfall: misclassification as general furnace without glassworking detail