Patent ID: 6436795
Filing Date: 2002-08-20
Classification: H01L

Abstract:
A process for producing semiconductor chips, comprising the steps of:providing a semiconductor wafer having a surface equipped (overlaid) with circuits; forming an arrangement wherein a back of the semiconductor wafer is fixed on a dicing tape and wherein a pressure sensitive adhesive double coated sheet is stuck to a circuit surface of the semiconductor wafer, said pressure sensitive adhesive double coated sheet comprising a shrinkable base having its both sides overlaid with pressure sensitive adhesive layers, at least one of said pressure sensitive adhesive layers composed of an energy radiation curable pressure sensitive adhesive; dicing the semiconductor wafer together with the pressure sensitive adhesive double coated sheet by each circuit to thereby form semiconductor chips; fixing the semiconductor chips on a transparent hard plate by adherence of the pressure sensitive adhesive layer of the pressure sensitive adhesive double coated sheet remote from the semiconductor chips; stripping the dicing tape from the semiconductor chips; irradiating the pressure sensitive adhesive double coated sheet, from the transparent hard plate side, with energy radiation; shrinking the shrinkable base of the pressure sensitive adhesive double coated sheet; and picking the semiconductor chips up.