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Proceedings Paper

Calibration of the registration metrology systems
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Paper Abstract

Tighter lithography requirements are increasing the challenges for mask registration metrology. Demands on calibration will increase as tool specific calibration need to significantly improve to enable accurate plate quality assessment and adequate matching between multiple writer and metrology system. We present results of calibration study conducted on Leica LMS IPRO 2 and LMS IPRO1. Two different calibration techniques were used to match the tool grid to absolute Cartesian coordinate system. The impact of the two calibration techniques on tool matching is summarized. The results are used to make recommendations on improving calibration methodology.

Paper Details

Date Published: 6 December 2004
PDF: 11 pages
Proc. SPIE 5567, 24th Annual BACUS Symposium on Photomask Technology, (6 December 2004); doi: 10.1117/12.568245
Show Author Affiliations
Mahesh Chandramouli, Intel Corp. (United States)
Yulia O. Korobko, Intel Corp. (United States)

Published in SPIE Proceedings Vol. 5567:
24th Annual BACUS Symposium on Photomask Technology
Wolfgang Staud; J. Tracy Weed, Editor(s)

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