Patent ID: 7476489
Filing Date: 2009-01-13
Classification: G03F,H05K,Y10S

Abstract:
1. A low-temperature curable photosensitive composition, comprising: a polyamic acid, derived from one or more aromatic dianhydrides and one or more aliphatic diamines selected from the group consisting of 1,9-nonamethylenediamine, 1,10-decamethylenediamine (DMD), 1,11-undecainethylenediamine, 1,12-dianiinododecane, isophoronediarnine, and combinations thereof, which when exposed to heat cures to form apolyimide having a modulus of less than 2 GPa; an ethylenically unsaturated photo monomer mixture, comprising a compound selected from the group consisting of amine (meth)acrylates, amine methacrylamides, and combinations thereof; and, a non-amine-containing (meth)acrylate compound; a photo initiator; and a sensitizer; wherein the photosensitive composition is developable in aqueous carbonate.