Patent ID: 9748195
Date: 2017-08-29
CPC Classifications: C08K,C09J,H01L

Claim:
1. A flip-chip mounting adhesive for use in a method for producing a semiconductor device, comprising at least a thermosetting resin and a thermosetting agent, wherein the thermosetting resin is an epoxy resin, wherein the adhesive has an activation energy ΔE of 100 kJ/mol or less, a reaction rate of 20% or less at 2 seconds at 260° C., and a reaction rate of 40% or less at 4 seconds at 260° C., as determined by differential scanning calorimetry and Ozawa method, and wherein the method for producing a semiconductor device comprises: step 1 of positioning a semiconductor chip on a substrate via the adhesive, the semiconductor chip including bump electrodes each having an end made of solder; step 2 of heating the semiconductor chip at a temperature of the melting point of the solder or higher to solder and bond the bump electrodes of the semiconductor chip to an electrode portion of the substrate, and concurrently to temporarily attach the adhesive; and step 3 of removing voids by heating the adhesive under a pressurized atmosphere.