Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Reexamination Certificate
2005-12-06
2005-12-06
Wells, Nikita (Department: 2881)
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
C359S361000, C359S350000, C356S237200
Reexamination Certificate
active
06972419
ABSTRACT:
An extreme (EUV) lithography system includes optical elements which vary the wavelengths of radiation as a function of the angle of incidence on a mask to maximize the reflected radiation intensity.
REFERENCES:
patent: 2003/0043370 (2003-03-01), Goldberg
patent: 2003/0058529 (2003-03-01), Goldstein
patent: 2003/0067598 (2003-04-01), Tomie
Yulin et al., “Spectral reflectance tuning of EUV mirrors for metrology applications,”Proc. of SPIE, vol. 5037, 2003, pp. 286-293.
Fish & Richardson P.C.
Hashmi Zia R.
Intel Corporation
Wells Nikita
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