Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1988-12-05
1992-02-11
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430193, G03E 7022
Patent
active
050875485
ABSTRACT:
A positive type radiation-sensitive resin composition which comprises a 1,2-quinonediazide compound and an alkali-soluble novolac resin produced by poly-condensing phenols represented by the formulas (I) and (II) in a molar ratio of (I)/(II) of 1/99 to 100/0 with a carbonyl compound: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, represent hydroxyl groups, hydrogen atoms, alkyl groups, aryl groups, aralkyl groups, alkenyl groups, halogen atoms, alkoxy groups, alkoxycarbonyl groups, aroxycarbonyl groups, alkanoyloxy groups, aroyloxy groups, acyl groups, cyano groups or nitro groups, ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, represent hydrogen atoms, alkyl groups, aryl groups, aralkyl groups, alkenyl groups, halogen atoms, alkoxy groups, alkoxycarbonyl groups, aroxycarbonyl groups, alkanoyloxy groups, aroyloxy groups, acyl groups, cyano groups or nitro groups. The above positive type radiation-sensitive resin composition is excellent in dry-etching resistance, resolution and heat resistance, and appropriate as a positive type resist for producing integrated circuits in which a resist pattern is formed, and also as a positive type resist for producing a mask.
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Harita Yoshiyuki
Honda Kiyoshi
Hosaka Yoshihiro
Nozue Ikuo
Takatori Masashige
Bowers Jr. Charles L.
Chu John S. Y.
Japan Synthetic Rubber Co., Inc.
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