Use of programmed multilayer defects in validating a defect compensation strategy for EUV lithography

Avijit K. Ray-Chaudhuri; Gregory Frank Cardinale; Aaron Fisher; Pawitter J. S. Mangat; Ted Liang; Donald W. Sweeney

doi:10.1117/12.373378

30 December 1999 Use of programmed multilayer defects in validating a defect compensation strategy for EUV lithography

Avijit K. Ray-Chaudhuri, Gregory Frank Cardinale, Aaron Fisher, Pawitter J. S. Mangat, Ted Liang, Donald W. Sweeney

Author Affiliations +

Proceedings Volume 3873, 19th Annual Symposium on Photomask Technology; (1999) https://doi.org/10.1117/12.373378
Event: Photomask Technology and Management, 1999, Monterey, CA, United States

Abstract

We propose the use of optical proximity correction on absorber features to compensate for the effect of sub-resolution multilayer defects that would otherwise induce a critical error in linewidth. A series of defect printability and compensation experiments utilizing programmed multilayer defects are presented which demonstrate this approach. The amount of absorber removal for defect compensation depends on system imaging performance and the quality of the absorber removal process. A process flow for the mask fabrication, defect characterization and compensation is presented.

Citation Download Citation

Avijit K. Ray-Chaudhuri, Gregory Frank Cardinale, Aaron Fisher, Pawitter J. S. Mangat, Ted Liang, and Donald W. Sweeney "Use of programmed multilayer defects in validating a defect compensation strategy for EUV lithography", Proc. SPIE 3873, 19th Annual Symposium on Photomask Technology, (30 December 1999); https://doi.org/10.1117/12.373378

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