Patent ID: 7485494
Filing Date: 2009-02-03
Classification: C09J,H01L

Abstract:
1. A dicing die adhesive film for semiconductor having a 3-layered structure comprising a first adhesive layer attached to the back of a semiconductor wafer; a second adhesive layer attached onto the first adhesive layer; and a dicing film attached onto the second adhesive layer, and used in conducting a semiconductor packaging process comprising: (a 1 ) a lamination process for attaching the dicing die adhesive film to the back of the semiconductor wafer, (a 2 ) a wafer dicing process for separating a die from die fragments by conducting a cutting operation through the front side of the laminated semiconductor wafer, (a 3 ) a die pick-up process for picking up the die separated by the dicing process so that the first adhesive layer and the second adhesive layer keep attached to the back of the die and the dicing film is separated using a pickup tool, (a 4 ) a die bonding process for attaching the picked-up die to the substrate, and (a 5 ) a curing process for enhancing an adhesive force between the substrate and the die, wherein an interlayer adhesive force (T wherein an interlayer adhesive force (Ta wherein an interlayer adhesive force (Tb wherein an interlayer adhesive force (Tc