Pressure Dependence of Photoresist Removal Rate Using Hydrogen Radicals
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- Yamamoto Masashi
- Department of Electrical and Computer Engineering, National Institute of Technology, Kagawa College
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- Shiroi Tomohiro
- Department of Electrical and Computer Engineering, National Institute of Technology, Kagawa College
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- Nagaoka Shiro
- Department of Electronic Systems Engineering, National Institute of Technology, Kagawa College
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- Shikama Tomokazu
- Department of Electrical and Computer Engineering, National Institute of Technology, Kagawa College
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- Umemoto Hironobu
- Graduate School of Integrated Science and Technology, Shizuoka University
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- Ohdaira Keisuke
- Japan Advanced Institute of Science and Technology
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- Takagi Seiji
- Graduate School of Engineering, Osaka City University
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- Nishiyama Takashi
- Graduate School of Engineering, Osaka City University
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- Horibe Hideo
- Graduate School of Engineering, Osaka City University
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Abstract
Photoresists play a key role in lithography processes for the fabrication of electronic devices, but must be removed after processing. The removal method using hydrogen radicals, which are produced on a tungsten hot-wire catalyst, is effective to resolve some environmental and industrial problems in usual methods. However, the removal rate is not as good as that of the usual methods. We have previously described that the removal rate is enhanced just by decreasing Hydrogen pressure but the rate limitations not clarified. In present study, we examined the removal rate dependence on the pressure and revealed that the upper limitation of the enhancement is achieved at 0.50 Pa. The removal rate at 0.50 Pa was 8.3 times higher than that at 20 Pa when the surface temperature was 250 oC.
Journal
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- Journal of Photopolymer Science and Technology
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Journal of Photopolymer Science and Technology 30 (3), 297-301, 2017
The Society of Photopolymer Science and Technology(SPST)
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Details 詳細情報について
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- CRID
- 1390282679300799488
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- NII Article ID
- 130005950262
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- NII Book ID
- AA11576862
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- ISSN
- 13496336
- 09149244
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- NDL BIB ID
- 028336437
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed