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Float Zone Crystal Grower Vacuum Pump from Japan

Reciprocating vacuum pump powering float zone furnaces for growing high-purity silicon crystals used in semiconductor wafers. Operates at 300 kW to achieve ultra-high vacuum during zone refining. Falls under HTS 8414.80.20.65 for its power range and specific use in semiconductor material growth.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Provide evidence of semiconductor-specific design (e.g

contamination-free materials) for correct chapter note application

Document vacuum levels achieved to distinguish from industrial general-purpose pumps

Check for export controls on high-vacuum tech under semiconductor equipment regulations