Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Reexamination Certificate
2005-11-16
2008-11-25
Chu, John S (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
C430S191000, C430S192000, C430S193000, C430S270100
Reexamination Certificate
active
07455948
ABSTRACT:
This invention relates to a positive photosensitive resin composition allowing development with an alkaline aqueous solution and excellent in resolution, photosensitivity and pattern form even if the film formed from the resin is thick.Furthermore, this invention relates to a photosensitive resin composition comprising (a) a polymer having one or more phenolic hydroxyl groups, (b) a compound having a phenolic hydroxyl group and containing only one group selected from a methylol group and alkoxymethyl group, and (c) a photo acid generator.
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Taniguchi Ryuichiro
Tomikawa Masao
Yuba Tomoyuki
Chu John S
Morrison & Foerster / LLP
Toray Industries Inc.
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