POSITIVE TYPE PHOTOSENSITIVE RESIN COMPOSITION
PURPOSE:To obtain the positive type photosensitive resin compsn. which is excellent in resolution and heat resistance and is good in preservable stability by consisting the compsn. of a photosensitive material and solvent which are respectively specific and incorporating the photosensitive material...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
25.04.1990
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Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE:To obtain the positive type photosensitive resin compsn. which is excellent in resolution and heat resistance and is good in preservable stability by consisting the compsn. of a photosensitive material and solvent which are respectively specific and incorporating the photosensitive material into the compsn. at >=20wt.% of the solid content thereof. CONSTITUTION:The photosensitive material consists of naphthoquinone-1, 2- diazide-5-sulfonyl ester or naphthoquinone-1, 2-diazide-4-sulfonyl ester of 2, 3, 4, 4'-tetrahydroxybenzophenone and the resin component consists of an alkali soluble resin. The solvent consists of the compd. expressed by the formula I and/or the mixture composed of the compds. expressed by the formulas II, III. This photosensitive material is incorporated into the compsn. at >=20wt.% of the solid content of the compsn. In the formula I to III, R1 to R3 are <=5C alkyl group. The positive type photosensitive resin compsn. which is excellent in resolution and heat resistance and is good in preservable stability is obtd. in this way. |
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Bibliography: | Application Number: JP19880266871 |