Bulk effects of the thermal flow resists
- Title
- Bulk effects of the thermal flow resists
- Author
- 오혜근
- Keywords
- Lithography; Lithography simulation; Chemically amplified resist; Thermal resist flow
- Issue Date
- 2004-11
- Publisher
- 한국물리학회
- Citation
- Journal of the Korean Physical Society, v.46, No.,2 Page.1439-1444
- Abstract
- In the semiconductor lithography process, the thermal flow process after development can pattern sub-100-nm contact holes and saves the cost of using resolution enhancement technology.
In this study, the resist flowing behavior and the contact hole shrinkage are described by using the level-set method and the thermal reflow length. The viscosity variable affects the shrinkage of the critical dimension. This variable is extracted from the experimental data by using a proposed equation.
Our simulation results are in good agreement with the experimental results for various baking temperatures and times. Although the most effective process of a 193-nm chemically amplified resist is the post exposure bake process, the inhibition reaction order of the enhanced Mack model,
which is a parameter of the development process, is shown to be the most controllable parameter for the critical dimension. In the resist reflow process, the side-wall angle of the resist profile is
decreased by the surface tension. This phenomenon is shown to be similar to that in the spin coating process by modeling a dimensionless parameter in spin coating.
- URI
- https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART000962980https://repository.hanyang.ac.kr/handle/20.500.11754/154851
- ISSN
- 0374-4884
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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