ECCN 3C907

NSRSAT

Epitaxial materials consisting of a substrate having at least one epitaxially grown layer of any of the following .

Category: 3 - ElectronicsProduct Group: C - MaterialsLast Updated: 2026-04-10

What This ECCN Covers

ECCN 3C907 controls epitaxial materials consisting of a substrate with at least one epitaxially grown layer, as specified in the entry. These advanced compound-semiconductor and wide-bandgap materials are controlled for National Security, Regional Stability, and Anti-Terrorism reasons.

Who needs to check this?

Suppliers of epitaxial wafers and substrates (e.g., compound-semiconductor and wide-bandgap materials) for advanced electronics.

Compliance tip

Control turns on the substrate/layer materials and characteristics in the entry — confirm your wafer qualifies. The RS reason can add destination-specific restrictions; verify the Country Chart and apply diligence for advanced-electronics end uses.

Reviewed by Jack Tan · Last reviewed: Jun 5, 2026

Items Covered

  • a.Silicon having an isotopic impurity less than 0.08% of silicon isotopes other than silicon-28 or silicon-30; or
  • b.Germanium having an isotopic impurity less than 0.08% of germanium isotopes other than germanium-70, germanium-72, germanium-74, or germanium-76.

Control Reasons

NSNational Security

Items controlled for national security reasons under multilateral export control regimes.

Column 1: YesColumn 2: No
RSRegional Stability

Items controlled for regional stability reasons.

Column 1: YesColumn 2: No
ATAnti-Terrorism

Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.

Column 1: YesColumn 2: No

Disclaimer

This information is for reference only. For official classifications, consult BIS or a qualified export control professional.

Official Reference

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