Patent ID: 6365903
Filing Date: 2002-04-02
Classification: B82Y,H01J

Abstract:
A method of manufacturing an integrated electronic circuit, in which a projection lithographic image of a lithographic object structure (14) is formed on a lithographic imaging surface (16), forming part of the integrated electronic circuit, by means of a beam of charged particles, which image is realized by means of an imaging particle optical system, characterized in thatthe imaging beam is subjected to the effects of a first up to and including a fifth quadrupole field forming part of the particle-optical system, neighboring quadrupole fields of said quadrupole fields extending each time perpendicularly to one another, the strength and the location of said quadrupole fields being chosen to be such that the imaging of the lithographic object structure (14) on the lithographic imaging surface (16) is stigmatic, and that the system is telescopic in the x-z plane as well as in the y-z plane.