Perfluoro-2-pentene from Japan
Perfluoro-2-pentene serves as a selective etchant for advanced semiconductor nodes. Falls under HTS 2903.59.90.00 as unsaturated fluorinated acyclic hydrocarbon isomer. Chapter 29 classification rules prioritize principal chemical character.
Duty Rate — Japan → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit SEMATECH process qualification documentation
• Use helium leak detection certification (<1x10^-9 scc/sec)
• Declare 7N purity level for 3nm+ semiconductor compatibility