Evaluation of novel hydrophilic derivatives for chemically amplified EUV resists

Hiroyuki Tanagi; Hiroyasu Tanaka; Shoichi Hayakawa; Kikuo Furukawa; Hiroki Yamamoto; Takahiro Kozawa

doi:10.1117/12.2045892

27 March 2014 Evaluation of novel hydrophilic derivatives for chemically amplified EUV resists

Hiroyuki Tanagi, Hiroyasu Tanaka, Shoichi Hayakawa, Kikuo Furukawa, Hiroki Yamamoto, Takahiro Kozawa

Proceedings Volume 9051, Advances in Patterning Materials and Processes XXXI; 905125 (2014) https://doi.org/10.1117/12.2045892
Event: SPIE Advanced Lithography, 2014, San Jose, California, United States

Abstract

EUV lithography is the most favorable process for high volume manufacturing of semiconductor devices beyond 1X nm half-pitch. Many efforts have revealed effective proton sources in acid generation in EUV resists, and the effective proton generation and the control of the generated acid diffusion are required to improve the breakthrough of the resolution － line width roughness － sensitivity(RLS) trade-off. To clarify the lithographic performance of these derivatives, we synthesized the acrylic terpolymers containing novel hydrophilic derivatives as model photopolymers and exposed the resist samples based on these polymers to EUV and EB radiation. On the basis of the lithographic performances of these resist samples, we evaluated the characteristics of hydrophilic derivatives upon exposure to EUV radiation. We discuss the relationship between the chemical structures of these derivatives and lithographic performance.

Citation Download Citation

Hiroyuki Tanagi, Hiroyasu Tanaka, Shoichi Hayakawa, Kikuo Furukawa, Hiroki Yamamoto, and Takahiro Kozawa "Evaluation of novel hydrophilic derivatives for chemically amplified EUV resists", Proc. SPIE 9051, Advances in Patterning Materials and Processes XXXI, 905125 (27 March 2014); https://doi.org/10.1117/12.2045892

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available