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Patent Searching and Data


Title:
APPARATUS FOR GENERATING A PLURALITY OF BEAMLETS
Document Type and Number:
WIPO Patent Application WO2004081910
Kind Code:
A3
Abstract:
The invention relates to an apparatus for generating a plurality of charged particle beamlets, comprising a charged particle source for generating a diverging charged particle beam, a converging means for refracting said diverging charged particle beam and a lens array comprising a plurality of lenses, wherein said lens array is located between said charged particle source and said converging means. In this way, it is possible to reduce aberrations of the converging means.

Inventors:
KRUIT PIETER (NL)
Application Number:
PCT/NL2004/000174
Publication Date:
March 31, 2005
Filing Date:
March 10, 2004
Export Citation:
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Assignee:
MAPPER LITHOGRAPHY IP BV (NL)
KRUIT PIETER (NL)
International Classes:
H01J3/02; H01J3/07; H01J3/14; H01J3/26; H01J37/063; H01J37/317; G09G; (IPC1-7): H01J37/317; H01J37/063; H01J3/02
Foreign References:
US4996441A1991-02-26
US5483074A1996-01-09
US6124599A2000-09-26
Other References:
ROELOFS B J G M ET AL: "FEASIBILITY OF MULTI-BEAM ELECTRON LITHOGRAPHY", MICROELECTRONIC ENGINEERING, ELSEVIER PUBLISHERS BV., AMSTERDAM, NL, vol. 2, no. 4, December 1984 (1984-12-01), pages 259 - 279, XP002069826, ISSN: 0167-9317
ANDO M ET AL: "EXPERIMENTAL STUDY OF MULTIPLE ION BEAM MACHINE", MICROELECTRONIC ENGINEERING, ELSEVIER PUBLISHERS BV., AMSTERDAM, NL, vol. 11, no. 1 / 4, 1 April 1990 (1990-04-01), pages 431 - 434, XP000134633, ISSN: 0167-9317
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