The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1994
Filed:
Feb. 10, 1993
Yasumasa Kawabe, Shizuoka, JP;
Toshiaki Aoai, Shizuoka, JP;
Tadayoshi Kokubo, Shizuoka, JP;
Shiro Tan, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A positive photoresist composition includes an alkali-soluble resin, a quinonediazide compound and a compound selected from the group consisting of compounds represented by formulae (I), (II) and (III): ##STR1## wherein R.sub.1 to R.sub.27, which may be the same or different, each represents a hydrogen atom, hydroxyl group, halogen atom, alkyl group, alkoxy group, nitro group, alkenyl group, aryl group, aralkyl group, alkoxycarbonyl group, arylcarbonyl group, acyloxy group, acyl group, aryloxy group or aralkoxy group; ##STR2## wherein R.sub.31 represents an organic group, single bond, ##STR3## R.sub.32 represents a hydrogen atom, monovalent organic group or ##STR4## R.sub.33 to R.sub.37, which may be the same or different, and in which not all four groups for each of R.sub.33 to R.sub.37 may be the same at the same time, each represents a hydrogen atom, hydroxyl group, halogen atom, alkyl group, alkoxy group or alkenyl group, with the proviso that at least one of R.sub.33 to R.sub.35 is a hydroxyl group; X represents a divalent organic group; and m represents an integer 0 or 1; ##STR5## wherein R.sub.41 to R.sub.44, which may be the same or different and in which not all four groups for each of R.sub.41 to R.sub.44 may be the same at the same time, each represents a hydrogen atom, hydroxyl group, halogen atom, alkyl group, alkoxy group or alkenyl group; R.sub.45 and R.sub.46 each represents a hydrogen atom, alkyl group or ##STR6## a and c each represents an integer 0 or 1; and b represents an integer from 1 to 4.