Patent ID: 7578891

Claim:
An adhesive bonding sheet having an optically transmitting supporting substrate and an adhesive bonding layer, and being used in both a dicing step and a semiconductor element adhesion step, wherein the adhesive bonding layer comprises: a polymer component (A) having a weight average molecular weight of 100,000 or more including functional groups; an epoxy resin (B); a phenolic epoxy resin curing agent (C); a photoreactive monomer (D), wherein the Tg of the cured material obtained by ultraviolet light irradiation is 250° C. or more; and a photoinitiator (E) which generates a base and a radical by irradiation with ultraviolet light of wavelength 200-450 nm, and wherein the supporting substrate satisfies the conditions expressed by the following equation (a): T 1 ×αT 2×α2≦7000 ppm (a) where T1 is transfer temperature when manufacturing adhesive bonding sheet, α1 is linear expansion coefficient at the transfer temperature, T2 is room temperature and α2 is linear expansion coefficient at room temperature.