Patent ID: 7695586
Filing Date: 2010-04-13
Classification: C08G,C09J,H01L

Abstract:
1. A method of bonding comprising: applying a photosensitive epoxy resin adhesive composition to a first adhered; exposing the photosensitive epoxy resin adhesive composition to light through a photomask; developing the photosensitive epoxy resin adhesive composition to form a pattern so as to have a void space; applying a second adherend on the patterned photosensitive epoxy resin adhesive composition; and subjecting the first and second adherends to thermal compression; wherein the photosensitive epoxy resin adhesive composition comprises an epoxy resin comprising a first polyfunctional epoxy resin having an epoxy equivalent of from 100 to 300 g/eq and a second polyfunctional epoxy resin having an epoxy equivalent of 4,400 to 10,000 g/eq., and a photo-acid generator in an amount of from 1 to 15 parts by weight.