DIE-ATTACHING PASTE AND SEMICONDUCTOR DEVICE

摘要

The present invention provides a resin paste which has a sufficient hot adhesion strength and gives a cured product of low elastic modulus, and thereby, causes no chip cracking or warpage and resultantly no property deterioration of IC or the like even when used for bonding of a large chip (e.g. IC) to copper frame or the like, and which is rapidly-curable, and generates no void. That is, the present invention lies in a die-attaching paste comprising, as essential components: (A) a liquid epoxy resin comprising (a1) an epoxy resin containing chlorine in an amount of 500 ppm or less and having a viscosity of 5,000 mPa Es or less at 25 DEG C and (a2) an epoxy group-containing reactive diluent containing chlorine in an amount of 300 ppm or less and having a viscosity of 1,000 mPa Es or less at 25 DEG C, the weight ratio of (a1):(a2) being 40:60 to 90:10, (B) a phenol compound having at least two hydroxyl groups in the molecule, (C) a latent curing agent, (D) an imidazole compound, and (E) an inorganic filler.The present invention also lies in a semiconductor device produced by using the above die-attaching paste.