인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2018.12
- 수록면
- 227 - 230 (4page)
이용수
초록· 키워드
Fabrication of photoresist (PR) patterning of extreme ultraviolet lithography (EUVL) toward 10 nm highly relies on fundamental understanding of nanoscale heterogeneity in resist matrix. However, currently reported kinetic models are based on homogeneous volume element, and cannot predict EUVL performance variation under heterogeneous resist component distribution such as molecular agglomeration and line edge surface consisting of polymer chains. In this study, we developed multiscale model, density functional theory (DFT)-molecular dynamics (MD)-finite difference method (FDM) integration, reflecting heterogeneous spatial distribution of material ingredients by downscaling the deprotection unit into single pendant group, and it allowed to investigate photo-triggered chemical reaction in molecular level including photo acid generator (PAG) dissociation by secondary electron attachment, acid diffusioncoupled deprotection and solubility switch of individual polymer chain. To quantify deprotection reaction progress, protecting ratio was assigned to pendant group and tracked to distinguish dissoluble PR chains against developer as the process time elapsed. After wiping out the dissoluble chains, morphology of PR line pattern was predicted in sub-10 nm scale from the full description of photo-triggered chemical reaction.
#EUV lithography(EUV 리소그래피)
#photoresist(포토레지스트)
#multiscale simulation(멀티스케일 전산모사)
#density functional theory(밀도범함수이론)
#molecular dynamics(분자동역학)
#finite difference method(유한차분법)
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목차
- Abstract
- 1. 서론
- 2. 방법론
- 3. 결과
- 4. 결론
- 참고문헌