Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone

We investigated the removal of polymers with various chemical structures and the removal of ion-implanted resists using wet ozone. The removal rates of polymers that have carbon-carbon (C–C) double bonds in the main chain were high. The main chain of these polymers may be decomposed. The removal rat...

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Main Authors: Hideo Horibe, Yousuke Goto
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Polymer Science
Online Access:http://dx.doi.org/10.1155/2012/937928
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author Hideo Horibe
Yousuke Goto
author_facet Hideo Horibe
Yousuke Goto
author_sort Hideo Horibe
collection DOAJ
description We investigated the removal of polymers with various chemical structures and the removal of ion-implanted resists using wet ozone. The removal rates of polymers that have carbon-carbon (C–C) double bonds in the main chain were high. The main chain of these polymers may be decomposed. The removal rates of polymers that have C–C double bonds in the side chain were low. The benzene ring in the side chain changes into carboxylic acid, so their ability to dissolve in water increased. The polymers without C–C double bonds were not removed. Removal of B and P ion-implanted resists became difficult with increasing acceleration energy of ions at implantation. The resist with plastic-deformation hardness that was twice as hard as that of nonimplanted resist should be removed similarly to nonimplanted resist. Using TOF-SIMS, we clarified that the molecule of cresol novolak resin was destroyed and carbonized by ion implantation.
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issn 1687-9422
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series International Journal of Polymer Science
spelling doaj-art-9c2788abfc4d418ca578491f4e8561412025-02-03T01:25:53ZengWileyInternational Journal of Polymer Science1687-94221687-94302012-01-01201210.1155/2012/937928937928Development of an Environmentally Friendly Resist-Removal Process Using Wet OzoneHideo Horibe0Yousuke Goto1Department of Bioscience and Applied Chemistry, Graduate School of Science and Technology, Kanazawa Institute of Technology, 3-1 Yatsukaho, Hakusan, Ishikawa 924-0838, JapanDepartment of Bioscience and Applied Chemistry, Graduate School of Science and Technology, Kanazawa Institute of Technology, 3-1 Yatsukaho, Hakusan, Ishikawa 924-0838, JapanWe investigated the removal of polymers with various chemical structures and the removal of ion-implanted resists using wet ozone. The removal rates of polymers that have carbon-carbon (C–C) double bonds in the main chain were high. The main chain of these polymers may be decomposed. The removal rates of polymers that have C–C double bonds in the side chain were low. The benzene ring in the side chain changes into carboxylic acid, so their ability to dissolve in water increased. The polymers without C–C double bonds were not removed. Removal of B and P ion-implanted resists became difficult with increasing acceleration energy of ions at implantation. The resist with plastic-deformation hardness that was twice as hard as that of nonimplanted resist should be removed similarly to nonimplanted resist. Using TOF-SIMS, we clarified that the molecule of cresol novolak resin was destroyed and carbonized by ion implantation.http://dx.doi.org/10.1155/2012/937928
spellingShingle Hideo Horibe
Yousuke Goto
Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone
International Journal of Polymer Science
title Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone
title_full Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone
title_fullStr Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone
title_full_unstemmed Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone
title_short Development of an Environmentally Friendly Resist-Removal Process Using Wet Ozone
title_sort development of an environmentally friendly resist removal process using wet ozone
url http://dx.doi.org/10.1155/2012/937928
work_keys_str_mv AT hideohoribe developmentofanenvironmentallyfriendlyresistremovalprocessusingwetozone
AT yousukegoto developmentofanenvironmentallyfriendlyresistremovalprocessusingwetozone