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:
Oct. 21, 2008
Filed:
Feb. 25, 2005
Katsumi Maeda, Tokyo, JP;
Kaichiro Nakano, Tokyo, JP;
Katsumi Maeda, Tokyo, JP;
Kaichiro Nakano, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
There is disclosed a photosensitive resin composition for interlayer insulating films, surface protection films or the like, which exhibits excellent resolution and can be developed with an aqueous alkaline solution. The photosensitive resin composition is prepared using a polymer at least having a constitutional repeating unit represented by general formula II: wherein Rrepresents hydrogen atom or methyl group; Rto Rindependently represent hydrogen atom, halogen atom or alkyl group having 1 to 4 carbon atoms; X represents —CH═N—, —CONH—, —(CH)—CH═N— or —(CH)—CONH— and the N atom in X is bonded to a carbon atom in the benzene ring having AO— at an o-position; A represents hydrogen atom or a group being decomposed by an acid; and n represents a positive integer of 1 to 3.