환경친화형 수계 박리액의 박리공정특성 및 청정성 평가 연구
Abstract
In this research, we studied the cleanliness of a developed aqueous stripper with optimized mixing ratio of the water and solute components. The stripping properties of an organic stripper were compared with those of the aqueous stripper, and the electrical and optical properties of the stripped specimen with a coated ITO film layer on glass were evaluated. From the result of the PR stripping process of the aqueous stripper with optimized water content and organic stripper, the aqueous stripper showed equal or better stripping capability than the organic stripper. In the case of the aqueous stripper, PR was floating in the stripper liquid through swelling and tearing, whereas the organic stripper showed dissolution of PR into the stripper liquid. Based on the difference in stripping mechanism between the organic and aqueous strippers, we estimated greenhouse gas (GHG) emissions and the amount of wastes in each stripper.
Keywords:
Aqueous stripper, ITO-Glass, Dipping, Photoresist, Stripping process, SwellingAcknowledgments
이 연구는 2016년 청정생산기반전문기술개발사업 과제번호 10052250의 연구비지원으로 수행되었습니다.
References
- Gilles, D. G., Loehr, R. C., 1994, Waste Generation and Minimization in Semiconductor Industry, Journal of Environmental Engineering, 120:1 72-86.
- Suja, F., Pramanik, B. K., Zain, S. M., 2009, Contamination, Bioaccumulation and Toxic Effects of Perfluorinated Chemicals (PFCs) in the Water Environment: A Review Paper, Water Science and Technology, 60:6 1533-1544.
- Chatzichristidi, M., Rajta, I., Speliotis, Th., Valamontes, E., Goustouridis, D., Argitis, P., Rapti, I.,, 2008, Aqueous Base Developable: Easy Stripping, High Aspect Ratio Negative Photoresist for Optical and Proton Beam Lithography, Microsyst Technol, 14 1423–1428. [https://doi.org/10.1007/s00542-008-0571-x]
- Park, N. H., Kim, D. H., Park, B., Jeong, E., Lee, J. W., 2002, The Industry Trend Analysis and Perspectives of Biodegradable Polymers, Biomaterials Research, 17:3 114-120.
- Kim, J. H., Lee, J. H., Kang, T. S., Joo, G.-T., Kim, Y. S., Jeong, B. H., Lee, D. W.,2017, Numerical Investigation of Factors Affecting Photoresist Stripping Process on the ITO Surface Using the Spray Method, Journal of the Korean Society of Manufacturing Technology Engineers, 26:2 158-165.
- Lee, H. K., Lee, I. G., Park, M.-J., Koo, K. K., Cho, Y. J., Cho, B. G., 2013, Technical Trend on the Recycling Technologies for Stripping Process Waste Solution by the Patent and Paper Analysis, Journal of the Korean Institute of Resources Recycling, 22:4 81-90.
- Kentish, S. E., Stevens, G. W., 2001, Innovations in Separations Technology for the Recycling and Reuse of Liquid Waste Streams, Chemical Engineering Journal, 84:2 249-159.
- Kim, J. H., Kim, S. H., Jeong, B. H., Joo, G.-T., Kim, Y. S., 2016, Green Photoresist Stripping Process with the Influence of Free Surface from Dip Withdrawal, Journal of the Korean Society of Manufacturing Technology Engineers, 25:1 14-20.
- Kim, J. H., Sim, J. M., Joo, G.-T., Kim, Y. S., Jeong, B. H., 2016, An Efficient Photoresist Stripping Process on the ITO Surface Using the Dipping Method, Journal of the Korean Society of Manufacturing Technology Engineers, 25:4 281-289.
- Kim, J. H., Ko, H. H., Lee, K.-S., Joo, G.-T., Kim, Y. S., 2018, Investigation for Photoresist Stripping Conditions on the ITO Surface by the Multi-Spray Method, Journal of the Korean Society of Manufacturing Technology Engineers, 27:1 27-34.
- National Air Pollutants Emission Service, n.d., 2018.03.10., Emission Calculation Method, <http://airemiss.nier.go.kr>.
- National GHG Emission Total Information System, n.d., 2018.03.10., Greenhouse Gas Emissions Statistics, <http://netis.kemco.or.kr>.