ECCN 3B904

NSRSAT

Cryogenic wafer probing equipment, having all of the following .

Category: 3 - ElectronicsProduct Group: B - Test EquipmentLast Updated: 2026-04-10

What This ECCN Covers

ECCN 3B904 controls cryogenic wafer probing "equipment" having all of the characteristics in the entry. Probing chips at cryogenic temperatures supports superconducting and quantum-device development, so it is controlled for National Security, Regional Stability, and Anti-Terrorism reasons.

Who needs to check this?

Suppliers of cryogenic wafer-probing and test systems for superconducting and quantum-computing device development.

Compliance tip

Confirm the equipment against the temperature and probing characteristics in the entry. The RS reason can add destination-specific restrictions; verify the Country Chart and apply Part 744 diligence for quantum/superconducting end uses.

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

Items Covered

  • a.Designed to test devices at temperatures less than or equal to 4.5 K (−268.65 °C); and
  • b.Designed to accommodate wafer diameters greater than or equal to 100 mm.

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

Related ECCNs