Patent ID: 7780811
Filing Date: 2010-08-24
Classification: H01L,Y10T

Abstract:
1. A method of fixing a chipped work, comprising: providing a dicing die-bonding film comprising a radiation-curable pressure sensitive adhesive layer formed on a supporting base material and a die-bonding adhesive layer on the pressure sensitive adhesive layer, wherein the die-bonding adhesive layer is arranged as a work-attaching region on a part of the pressure-sensitive adhesive layer, wherein pressing a work onto the work-attaching region of the die-bonding adhesive layer in the dicing die-bonding, thereby attaching the whole area of a face of the work to the work-attaching region attached which is larger than the whole area of the work face; pressing a dicing ring onto said other region of the pressure-sensitive adhesive layer, thereby attaching the dicing ring to the pressure-sensitive adhesive layer while fitting the work-attaching region within the inner diameter of the dicing ring; dicing the work into chips; releasing the chipped work together with the die-bonding adhesive layer from the pressure-sensitive adhesive layer; and fixing the chipped work to a semiconductor element via the die-bonding adhesive layer.