Extended Nijboer-Zernike (ENZ) based mask imaging : efficient coupling of electromagnetic field solvers and the ENZ imaging algorithm

O.T.A. Janssen, S. Haver, van, A.J.E.M. Janssen, J.J.M. Braat, H.P. Urbach, S.F. Pereira

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

11 Citaten (Scopus)
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Samenvatting

Results are presented of mask imaging using the Extended Nijboer-Zernike (ENZ) theory of diffraction. We show that the efficiency of a mask imaging algorithm, derived from this theory, can be increased. By adjusting the basic Finite Difference Time Domain (FDTD) algorithm, we can calculate the near field of isolated mask structures efficiently, without resorting to periodic domains. In addition, the calculations for the points on the entrance sphere of the imaging system can be done separately with a Fourier transformed Stratton-Chu near-to-far-field transformation. By clever sampling in the radial direction of the entrance pupil, the computational effort is already reduced by at least a factor of 4.
Originele taal-2Engels
TitelProceedings Optical Microlithography XXI, 26 - 29 February 2008, San Jose, California
Plaats van productieBellingham
UitgeverijSPIE
Pagina's692410-1/9
ISBN van geprinte versie9780819471093
DOI's
StatusGepubliceerd - 2008

Publicatie series

NaamProceedings of SPIE
Volume6924
ISSN van geprinte versie0277-786X

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