Electron beam lithography

JEOL JBX-5500FS

DWB Cleanroom | University of Oxford

Electron beam lithography (EBL) systems are advanced nanofabrication tools that scan a highly focused beam of electrons to directly draw patterns with sub-10 nm resolution on resist-coated substrates, bypassing the need for physical masks.

Description

The system has an interferometer-controlled stage which allows for the possibility of writing nanoscale patterns across large substrates with a stitching accuracy between writing fields better than 15 nm. The electron beam is generated by a ZrO/W emitter and is focussed via a four-stage electron lens system.

Specification

Beam current: 100 pA – 40 nA
Acceleration voltage: 25 kV – 50 kV