ECCN 3C004
NSATHydrides of phosphorus, arsenic or antimony, having a purity better than 99.999%, even diluted in inert gases or hydrogen.
What This ECCN Covers
ECCN 3C004 controls hydrides of phosphorus, arsenic, or antimony with a purity better than 99.999% (and related dopant materials) used in compound-semiconductor processing. These ultra-high-purity dopant gases and sources are controlled for National Security and Anti-Terrorism reasons.
Who needs to check this?
Specialty-gas and electronic-materials suppliers exporting high-purity phosphine, arsine, and similar dopant sources for semiconductor fabrication.
Compliance tip
Control turns on the chemistry and the purity threshold in the entry — confirm your material qualifies, since lower-purity gases may fall outside. These are also hazardous materials, so coordinate export classification with transport and safety requirements, and check the NS and AT columns.
Control Reasons
Items controlled for national security reasons under multilateral export control regimes.
Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.
Disclaimer
This information is for reference only. For official classifications, consult BIS or a qualified export control professional.