Patent ID: 8558388

Claim:
A patternable adhesive composition comprising: at least one alkali soluble resin comprising an alkali soluble group and an acryloyl group; at least one radically polymerizable compound; at least one thermosettable compound; and at least one photo-radical initiator, wherein the at least one alkali soluble resin has a weight-average molecular weight of about 5 to about 30 kiloDaltons and a glass transition temperature of about 100° C. or higher, the at least one alkali soluble resin has an acid value of about 30 to about 100 milligrams KOH per gram, the patternable adhesive composition has a total acid value of about 40 to about 60 milligrams KOH per gram, and a film of the patternable adhesive composition has a dissolution rate of about 0.1 micrometer per second or more when contacted with a 2.38 percent by weight tetramethylammonium hydroxide developing solution, and a film of the patternable adhesive composition having at least a portion exposed to radiation has a thickness variation of the exposed portion of less than about 5% after an exposing to irradiation process and a developing process.