ECCN.DEV by Cancelli

3E004 Category 3E

“Technology” “required” for the slicing, grinding and polishing of 300 mm diameter silicon wafers to achieve a 'Site Front least sQuares Range' ('SFQR') less than or equal to 20 nm at any site of 26 mm x 8 mm on the front surface of the wafer and an edge exclusion less than or equal to 2 mm.

Category 3: Electronics

Reasons for control

Country chart

ControlColumn
AT applies to entire entryAT 1
NS applies to entire entryNS 1

List-based license exceptions

ExceptionAs stated in the entry
TSR Yes

Items

  1. The list of items controlled is contained in the ECCN heading.

Related controls

N/A

Source: eCFR, version 2026-08-01, retrieved 2026-08-20T04:04:59+00:00.