Patent ID: 7312261

Claim:
A method for making a conductive adhesive composition comprising the steps of: mixing a liquid epoxy precursor and a polymer additive to form a first mixture; stirring said first mixture at at least room temperature until it forms a first homogeneous blend; adding a anhydride curing additive to said first homogeneous blend to form a second mixture; stirring said second mixture at at least room temperature until it forms a second homogeneous blend; adding a epoxy curing catalyst to said second homogeneous blend to form a third mixture; stirring said third mixture until it forms a third homogeneous blend, and adding conductive filler particles in said third homogeneous blend to form a conductive adhesive composition, wherein: said liquid epoxy precursor is a soluble mixture of 1,3-bis(glycidoxypropyl) tetramethyl disiloxane and said polymer additive is oligomeric ABA-glycidyl methacrylate diester and said first mixture is prepared by heating with stirring at approximately 50° C.; said anhydride curing additive is HHPA, or a mixture of HHPA and MeHHPA; said epoxy curing catalyst is nonylphenol+ethylene glycol, and the tertiary amine 2,4,6-tris(dimethylamino-methyl)phenol; and said conductive filler particles are Au-coated Ag, Pd-coated Ag filler, Ag flake, or a combination thereof blended to form screenable conductive adhesive paste.