Patent ID: 6689245
Filing Date: 2004-02-10
Classification: H01L,Y10T

Abstract:
A die bonding sheet sticking apparatus including:a wafer supply section for accommodating a plurality of wafers therein, a wafer conveyance section including conveyance means for taking out a wafer from the wafer supply section and conveying the wafer, an alignment section for positioning the wafer taken out from the wafer supply section via the wafer conveyance means of the wafer conveyance section, a sheet sticking section for conveying the wafer arranged for given reference position at the alignment section via conveying means and for sticking a die bonding sheet to a back surface of the wafer by heating, said die bonding sheet comprising a release sheet and a base provided with heat-sensitive adhesive layer, and a sheet peeling section including sheet peeling means for peeling the release sheet of the die bonding sheet from the wafer having the die bonding sheet stuck thereto at the sheet sticking section, wherein the sheet sticking section comprises: cutting means capable of, prior to the sticking of the die bonding sheet to the back surface of the wafer, cutting the base provided with heat-sensitive adhesive layer of the die bonding sheet in conformity with an outline of the wafer, said cutting means capable of cutting the base provided with heat-sensitive adhesive layer in the direction of a width of the die bonding sheet with a spacing of given distance from a rear end portion of the wafer in the direction of conveyance of the wafer so as to form a leaf portion; and leaf detaching means capable of, prior to the sticking of the die bonding sheet to the back surface of the wafer, detaching only the leaf portion, corresponding to portion outside the outline of the wafer, of the base provided with heat-sensitive adhesive layer of the die bonding sheet after the cutting by said cutting means.