General scaling law of optical lithography: optical theory

Chun-Kuang Chen; Tsai-Sheng Gau; Li-Jui Chen; Chi-Chuang Lee; Jaw-Jung Shin; Anthony Yen; Burn-Jeng Lin

doi:10.1117/12.536667

28 May 2004 General scaling law of optical lithography optical theory

Chun-Kuang Chen, Tsai-Sheng Gau, Li-Jui Chen, Chi-Chuang Lee, Jaw-Jung Shin, Anthony Yen, Burn-Jeng Lin

Proceedings Volume 5377, Optical Microlithography XVII; (2004) https://doi.org/10.1117/12.536667
Event: Microlithography 2004, 2004, Santa Clara, California, United States

Abstract

The concept of system invariance is the principle of scaling law in optical lithography. Both the conservation of the intensity threshold of the aerial image and the invariant pupil filling of the diffracted light with the normalized numerical aperture (NA) have to be satisfactory in order to ensure the invariance for a system in a variety of optical settings. Two well-known scaling equations with k₁ and k₂ factors characterize the capability of the manufacturing process in microlithography. In theory, the validity of these two equations has to be based on the principle of invariance. Therefore, any optical parameters in exposure tool could be scaling validly and properly, once they obey the principle of invariance.

Citation Download Citation

Chun-Kuang Chen, Tsai-Sheng Gau, Li-Jui Chen, Chi-Chuang Lee, Jaw-Jung Shin, Anthony Yen, and Burn-Jeng Lin "General scaling law of optical lithography optical theory", Proc. SPIE 5377, Optical Microlithography XVII, (28 May 2004); https://doi.org/10.1117/12.536667

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