0

Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Reverse engineering source polarization error

[+] Author Affiliations
George E. Bailey, Kostas Adam, Travis Brist

Mentor Graphics Corp.

Olivier Toublan

Mentor Graphics Corp. (France)

Andrew Estroff

IMEC (Belgium)

Proc. SPIE 5992, 25th Annual BACUS Symposium on Photomask Technology, 599234 (November 08, 2005); doi:10.1117/12.632420
Text Size: A A A
From Conference Volume 5992

  • 25th Annual BACUS Symposium on Photomask Technology
  • J. Tracy Weed; Patrick M. Martin
  • Monterey, California | October 03, 2005

abstract

With the advent of the first immersion and hyper-NA exposure tools, source polarization quality will become a hot topic. At these oblique incident angles, unintentional source polarization could result in the intensity loss of diffraction orders possibly inducing resolution or process window loss. Measuring source polarization error on a production lithographic exposure tool is very cumbersome, but it is possible to reverse engineer any source error similarly to what has been accomplished with intensity error. As noted in the intensity maps from the source illumination, it is not safe to assume an ideal or binary source map, so model fitness is improved by emulating the real error. Likewise, by varying the source polarization types (TE, TM, Linear X and Linear Y) and ratios to obtain improved model fitness, one could deduce the residual source polarization error. This paper will show the resolution and process window gain from utilizing source polarization in immersion lithography. It will include a technique demonstrating how to extract source polarization error from empirical data using the Calibre model and will document the modeling inaccuracy from this error.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

George E. Bailey ; Kostas Adam ; Travis Brist ; Olivier Toublan and Andrew Estroff
"Reverse engineering source polarization error", Proc. SPIE 5992, 25th Annual BACUS Symposium on Photomask Technology, 599234 (November 08, 2005); doi:10.1117/12.632420; http://dx.doi.org/10.1117/12.632420


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
 

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

Buy this article ($18 for members, $25 for non-members).
Sign In