Hydroxyamide-containing Positive-type Photosensitive Polyimides
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- Hasegawa Masatoshi
- Department of Chemistry, Faculty of Science, Toho University
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- Nakano Jun
- Department of Chemistry, Faculty of Science, Toho University
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- Miyazaki Tetsuya
- Department of Chemistry, Faculty of Science, Toho University
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- Tanaka Yuma
- Department of Chemistry, Faculty of Science, Toho University
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Abstract
A hydroxyamide-containing tetracarboxylic dianhydride was synthesized from trimellitic anhydride chloride and bis(3-amino-4-hydroxyphenyl)sulfone. Poly(amic acid)s (PAAs) were prepared from this dianhydride with several diamines in N-methyl-2-pyrrolidone (NMP). The reflux of the PAA solutions at 160°C for 3 h allowed to form hydroxyamide-containing polyimides (PHAIs) highly soluble in common organic solvents such as NMP. The PHAI films could be completely converted to poly(benzoxazole imide)s (PBOIs) through cyclodehydration of the hydroxyamide groups upon heat treatment at 300°C. The thermally cured PBOI films showed a high Tg ranging 298-323°C. Other PBOI film properties are also discussed in this paper. The PHAI films were highly transparent at 435 nm but not at 365 nm. This is a problem to be solved for high sensitivity patterning at i-line. The solubility of the PHAI films in TMAH could be controlled by copolymerization using different diamines. The PHAI copolymer films dispersing diazonaphthoquinone (DNQ) as a photosensitizer were uv-irradiated through a photo-mask. Development using a 2.38 wt% TMAH aqueous solution containing 2-propanol gave a fine positive-type pattern with L&S = 20 μm.
Journal
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- Journal of Photopolymer Science and Technology
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Journal of Photopolymer Science and Technology 20 (2), 175-180, 2007
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
- 1390282679300805632
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- NII Article ID
- 130004464522
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- NII Book ID
- AA11576862
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- COI
- 1:CAS:528:DC%2BD2sXot1WntL0%3D
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- ISSN
- 13496336
- 09149244
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- NDL BIB ID
- 8918760
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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