A semiconductor chip laminate comprises a plurality of semiconductor chips and an adhesive layer through which the plurality of semiconductor chips are laminated, wherein the adhesive layer is composed of an adhesive composition comprising an acrylic polymer (A); an epoxy resin (B); a thermal curing agent (C); and a certain organophosphonium compound (D) as a thermal curing accelerator, and the content of the organophosphonium compound (D) relative to 100 parts by weight in total of the epoxy resin (B) and the thermal curing agent (C) is 0.001 to 15 parts by weight.