Patent ID: 7262114

Claim:
A die attaching method for use in the fabrication of a semiconductor package, the method comprising: attaching warpage prevention material to the top surface of a wafer over a plurality of semiconductor chips; attaching a film type of die attaching tape to a bottom surface of the wafer; subsequently cutting the wafer along lines that divide the semiconductor chips from one another; conveying the resultant semiconductor chips separated on the film type of die attaching tape to a die attaching apparatus that is operative to secure a semiconductor chip to a die pad of a base frame; picking the semiconductor chips up using a collet of the die attaching apparatus, and attaching each of the semiconductor chips to a die pad of a base frame while detaching the warpage prevention material from the semiconductor chip in the die attaching apparatus; and grasping the warpage prevention material on each semiconductor chip with the collet of the die attaching apparatus, and removing the warpage prevention material from the semiconductor chip after the chip has been attached to the die pad.