System and method for azimuth angle calibration

Optics: measuring and testing – By polarized light examination

Reexamination Certificate

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Reexamination Certificate

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07990534

ABSTRACT:
An improved procedure for calibrating the azimuth angle in a metrology module for use in a metrology system that is used for measuring a target on a wafer, and the metrology modules can include oblique Spectroscopic Ellipsometry (SE) and unpolarized or polarized spectroscopic reflectometer devices.

REFERENCES:
patent: 6433878 (2002-08-01), Niu et al.
patent: 6538731 (2003-03-01), Niu et al.
patent: 6778273 (2004-08-01), Norton et al.
patent: 6785638 (2004-08-01), Niu et al.
patent: 6891626 (2005-05-01), Niu et al.
patent: 6943900 (2005-09-01), Niu et al.
patent: 7064829 (2006-06-01), Li et al.
patent: 7224471 (2007-05-01), Bischoff et al.
patent: 7280229 (2007-10-01), Li et al.
patent: 7414733 (2008-08-01), Bischoff et al.
patent: 2004/0267397 (2004-12-01), Doddi et al.
patent: 2005/0192914 (2005-09-01), Drege et al.
patent: 2005/0209816 (2005-09-01), Vuong et al.
U.S. Appl. No. 12/050,053, filed Mar. 17, 2008 for Tian et al.
U.S. Appl. No. 12/050,919, filed Mar. 18, 2008 for Tian et al.
U.S. Appl. No. 12/057,316, filed Mar. 27, 2008 for Tian et al.
U.S. Appl. No. 12/057,332, filed Mar. 27, 2008 for Tian et al.
U.S. Appl. No. 12/057,346, filed Mar. 27, 2008 for Tian et al.
U.S. Appl. No. 12/059,610, filed Mar. 31, 2008 for Meng et al.
U.S. Appl. No. 12/141,754, filed Jun. 18, 2008 for Tian et al.
U.S. Appl. No. 12/141,867, filed Jun. 18, 2008 for Tian et al.
Coulombe, S. et al., “Ellipsometric-Scatterometry for sub-01. mm CD measurements”, SPIE vol. 3332 (1988) pp. 282-292.
Shifang Li, “Jones-matrix analysis with Pauli matrices: application to ellipsometry”, J. Opt. Soc. Am. A; vol. 17, No. 5; May 2000, p. 920-9262.

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