Patent ID: 8445177
Filing Date: 2013-05-21
Classification: C09J,G03F,H01L,Y10T

Abstract:
1. A photosensitive adhesive film comprising: (A) a polyimide having a carboxyl group as a side chain, whereof the acid value is 80 to 180 mg/KOH; (B) a photo-polymerizable compound; (C) a photopolymerization initiator; and (D) a thermosetting resin, wherein the photosensitive adhesive film is a photosensitive adhesive film obtainable by: dissolving or distributing a photosensitive adhesive composition in an organic solvent to prepare a varnish; forming a layer of the varnish on a substrate, to form a varnish layer; and drying the varnish layer; and wherein the photosensitive adhesive film has a property that, when a silicon chip is bonded to a glass substrate via the photosensitive adhesive film, the photosensitive adhesive film provides a shear adhesive strength of 5 MPa or more at 25° C.