JP5401737B2 - 塩基発生剤及び当該塩基発生剤を含有する感光性樹脂組成物 - Google Patents
塩基発生剤及び当該塩基発生剤を含有する感光性樹脂組成物 Download PDFInfo
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- JP5401737B2 JP5401737B2 JP2008230324A JP2008230324A JP5401737B2 JP 5401737 B2 JP5401737 B2 JP 5401737B2 JP 2008230324 A JP2008230324 A JP 2008230324A JP 2008230324 A JP2008230324 A JP 2008230324A JP 5401737 B2 JP5401737 B2 JP 5401737B2
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Images
Landscapes
- Materials For Photolithography (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Resins (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Description
その他、本発明の実施の際の具体的な構造及び形状等は、本発明の目的を達成できる範囲で他の構造等としてもよい。
塩基発生剤の製造(1):
式(III)に示したケトプロフェン3.0gを含有したエーテル溶液30mLに、アミジンであるジアザビシクロウンデセン(DBU)1.8gを直接滴下後、室温で1時間反応させた。反応終了後、溶媒留去することで、式(I−b)で表される本発明の塩基発生剤(アミジン塩)の透明粘性液体を得た。
塩基発生剤の製造(2):
ケトプロフェン3.0gを含有したテトラヒドロフラン(THF)溶液5mLに、イミダゾールである2−メチルイミダゾール1.8gのテトラヒドロフラン(THF)溶液25mLを滴下後、室温で1時間反応させた。反応終了後、溶媒留去することで、式(II−b)で表される本発明の塩基発生剤(イミダゾール塩)の透明粘性液体を得た。
実施例1及び実施例2で得られた塩基発生剤をpH試験紙(Whatman indicator paper pH 1〜14)に数滴垂らした後(試験紙の色である黄色:pHが7〜8)、波長が254nmの光を照射したところ深緑色に変色し、pHが約12となった。以上より、実施例1及び実施例2で得られた塩基発生剤が光の照射により塩基が発生することが確認できた。
実施例1及び実施例2で得られた塩基発生剤について、溶媒としてメタノールを用いて、UVスペクトル測定を行った。結果を図1(実施例1)及び図2(実施例2)に示す。
実施例1及び実施例2で得られた塩基発生剤について、下記の測定方法を用いて光分解挙動の確認を行った。結果を図3(実施例1)及び図4(実施例2)に示す。
実施例1の塩基発生剤のメタノール溶液(2.4×10−5mol/L)及び実施例2の塩基発生剤のメタノール溶液(2.0×10−5mol/L)に波長が254nmの光を照射し、紫外可視分光光度計(MultiSpec−1500/(株)島津製作所製)を用いて、0、50、200、800mJ/cm2の4種類の露光量を用いて、UVスペクトルの経時変化を確認した。
感光性樹脂組成物の製造(1):
式(No.4−12)に表されるエポキシ系化合物であるポリグリシジルメタクリレート(PGMA、MW=15000)0.1g(100質量部)に対して、実施例1で得られた塩基発生剤を0.01g(10質量部)含有させることにより、本発明の感光性樹脂組成物を得た。
光不溶化挙動の確認(1):
実施例3で得られた感光性樹脂組成物を1.0gのクロロホルムに溶解させた。この試料溶液を3000rpm、30秒間でシリコンウェハ上にスピンコートし、ホットプレートで80℃、30秒間プリベイクすることにより、厚さ1.4μmの膜を作製した。このようにして作製された膜に所定量の254nm単色光を照射し、室温、40℃または80℃で5分間ポストベイクした後、クロロホルムで30秒間現像した。そして、残っている膜の厚さを測定し、感度曲線を作成した。感度曲線を図5に示す。
感光性樹脂組成物の製造(2):
式(No.4−12)に表されるエポキシ系化合物であるポリグリシジルメタクリレート(PGMA、MW=15000)0.1g(100質量部)に対して、実施例2で得られた塩基発生剤を0.005g(5質量部)含有させることにより、本発明の感光性樹脂組成物を得た。
光不溶化挙動の確認(2):
実施例4で得られた感光性樹脂組成物を1.0gのクロロホルムに溶解させた。この試料溶液を3000rpm、30秒間でシリコンウェハ上にスピンコートし、ホットプレートで80℃、30秒間プリベイクすることにより、厚さ1.2μmの膜を作製した。このようにして作製された膜に所定量の254nm単色光を照射し、室温、60℃または80℃で5分間ポストベイクした後、クロロホルムで30秒間現像した。そして、残っている膜の厚さを測定し、感度曲線を作成した。感度曲線を図6に示す。
ポリメチルメタクリレート(PMMA)0.1gとこれに対して実施例1で得られた塩基発生剤を0.006g(6質量%)を含むクロロホルム溶液を石英板状にスピンコートし、ホットプレートで80℃、30秒間プリベイクすることにより厚さ1.3μmの膜を作製した。かかる膜に対して波長が254nmの光を所定量照射して、紫外可視分光光度計(MultiSpec−1500/(株)島津製作所製)を用いて、0、40、60、100、200mJ/cm2の5種類の露光量を用いて、膜のUVスペクトルの経時変化を確認した。結果を図7に示す。
感光性樹脂組成物の製造:
式(No.4−12)に表されるエポキシ系化合物であるポリグリシルメタクリレート(PGMA、MW=10000、MW/Mn=1.8)0.1g(100質量部)に対して、実施例1で得られた塩基発生剤を0.003g(3質量部)含有(そのモノマーユニットに対して1mol%)の実施例1で得られた塩基発生剤を含有させることにより、本発明の感光性樹脂組成物を得た。
光不溶化挙動の確認(3):
実施例5で得られた感光性樹脂組成物0.103gをクロロホルムに溶解させて試料溶液とした。この試料溶液をシリコンウェハ上にスピンコートし、ホットプレートで80℃、30秒間プリベイクすることにより厚さ1.1μmの膜を作製した。この膜に対して波長254nmの単色光を所定量照射後、80、100または120℃のホットプレート上で5分間ポストベイクし、クロロホルムで30秒間現像した後の残膜率を測定して感度曲線を作成することで感度を評価した。感度曲線を図8に示す。
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JP5399116B2 (ja) * | 2009-04-06 | 2014-01-29 | 三洋化成工業株式会社 | 光塩基発生剤を含有する感光性組成物 |
JP2011195616A (ja) * | 2010-03-17 | 2011-10-06 | Eiweiss Kk | 光硬化性樹脂組成物 |
JP6011956B2 (ja) * | 2010-04-14 | 2016-10-25 | 学校法人東京理科大学 | 感光性樹脂組成物 |
JP5791144B2 (ja) * | 2011-04-05 | 2015-10-07 | 学校法人東京理科大学 | レジスト組成物、レジストパターン形成方法 |
JP5765851B2 (ja) * | 2011-05-09 | 2015-08-19 | 学校法人東京理科大学 | カルボン酸化合物、塩基発生剤及び当該塩基発生剤を含有する感光性樹脂組成物 |
JP5780919B2 (ja) * | 2011-10-26 | 2015-09-16 | サンアプロ株式会社 | 塩基発生剤 |
JP6008166B2 (ja) * | 2012-04-05 | 2016-10-19 | 株式会社リコー | 活性光線硬化組成物、活性光線硬化型インクジェット印刷用インク組成物、活性光線硬化型接着剤組成物および活性光線硬化組成物の安定化方法 |
US20160009737A1 (en) | 2013-03-28 | 2016-01-14 | San-Apro Ltd. | Photobase generator |
KR102305831B1 (ko) | 2013-07-18 | 2021-09-27 | 세메다인 가부시키 가이샤 | 광경화성 조성물, 경화물 및 그의 제조 방법, 그리고 관련 제품 및 그의 제조 방법 |
JP6498127B2 (ja) | 2013-12-04 | 2019-04-10 | サンアプロ株式会社 | 光塩基発生剤 |
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