Patent ID: 8420291
Filing Date: 2013-04-16
Classification: C08G,C08L,G03F,H01L

Abstract:
1. A positive photosensitive resin composition comprising: (a) a polybenzoxazole or a polybenzoxazole precursor polymer having a structural unit represented by either a general formula (1) or (2), and satisfying following conditions (i) or (ii), or (i) and (ii); (b) a compound that generates an acid when irradiated with an active light ray; and (c) a compound having a structure represented by a general formula (3) crosslinkable or polymerizable with the component (a) upon applying heat; wherein content of the component (c) is 20 to 50 parts by weight based on 100 parts by weight of the component (a); wherein R R A R a and b each independently represent an integer of 0 to 4; wherein at least one of R wherein c and f each independently represent an integer of 0 to 1; d and e each independently represent an integer of 0 to 6, and d+e>0; g and h each independently represent an integer of 0 to 4; A n represents an integer of 1 to 20; a plurality of R R wherein R i, j and k each independently represent an integer of 0 to 6; l represents an integer of 0 to 3 with a proviso that i+k>0; A R R wherein R R at least one of R a plurality of E may be the same or different, and are selected from OR R g and h represents an integer of 0 to 4 with a proviso that g+h>0; wherein Condition (i) is when, as a terminal group, the component (a) has a functional group reactable with said component (c) upon being thermally cured, and Condition (ii) is when the component (a) includes the structure represented by the general formula (I), if c+f=0 in the general formula (I), d+e≧3; wherein a plurality of R a plurality of R